====== WiFi adapter ====== ^ Model ^ WiFi standards ^ 5GHz support ^ Bluetooth ^ Other connectivity possibilities ^ Approximate price ^ Notes ^ | [[https://wikidevi.wi-cat.ru/Intel_Wi-Fi_6_AX200_(AX200NGW)|Intel AX200]] | 802.11a/b/g/n/ac/ax | :YES: | :YES: v5.1 | WiFi 6, MU-MIMO, OFDMA | $20-30 | | | [[https://wikidevi.wi-cat.ru/Intel_Dual_Band_Wireless-AC_7260_(7260HMW)|Intel Wireless-AC 7260]] | 802.11a/b/g/n/ac | :YES: | :YES: v4.0 | WiDi, Intel Wireless Display | $15-25 | [[https://wikidevi.wi-cat.ru/Intel_Wireless-N_7260_(7260HMW_BN)|Intel Wireless-N 7260]] does not support 5GHz band (802.11/g/n only) | | [[https://wikidevi.wi-cat.ru/Intel_WiFi_Link_5100_(abgn,_full_size)|Intel 5100 512ANHMW]] | 802.11a/b/g/n | :YES: | :NO: | | $10-20 | | | [[https://wikidevi.wi-cat.ru/Atheros_AR5B95|Atheros AR5B95-H / U98Z062.10]] | 802.11a/b/g/n | :YES: | :NO: | | $10-15 | | | [[https://wikidevi.wi-cat.ru/Atheros_AR5B95|Atheros AR5B95]] | 802.11a/b/g/n | :NO: | :NO: | | $8-12 | | :WARN: Check your driver capabilities using ''netsh wlan show drivers'' and inspecting the output contains 802.11a/n/ac. ====== Barcode scanner ====== * [[http://www.ebay.com/bhp/usb-barcode-scanner|Search eBay for "USB barcode scanner"]] * [[http://www.taltech.com/barcodesoftware/articles/which_barcode_scanner_interface|Which Barcode Scanner Interface is right for me?]] describes the "Keyboard Wedge" and RS232 types of scanners. * [[sourceforge>zbar]] -- open source software suite for reading bar codes from various sources, such as video streams, image files and raw intensity sensors. * [[sourceforge>zbarw]] -- Windows port * [[https://help.ubuntu.com/community/BarcodeReaders|Barcode Readers in Linux]] ====== USB ====== * [[wp>USB#Pinouts|Micro USB pinouts]] * [[http://www.ebay.com/sch/i.html?_nkw=micro+usb+b+socket&_sop=15|Micro USB Type B Female Socket]] * [[livejournal>ammo1/571055|Не все кабели одинаково полезны]] * [[livejournal>ammo1/555211|Продвинутый USB-тестер]] * [[livejournal>ammo1/587849|Царь-тестер]] * [[youtube>mdwqZAkYWzQ|What is USB-C?]] * [[:software:windows#how_to_share_internet_connection_via_usb|How to share internet connection via USB?]] ===== Flash ===== * [[habrahabr>98339|Восстанавливаем флешки]] * [[torrents>2489912|Реанимация flash накопителей]] * [[http://usbflashspeed.com/|UsbFlashSpeed]] * [[wp>Serial_ATA#Comparison_with_other_buses|SATA/eSATA/USB/FireWire/SCSI transfer rate comparison table]] * [[wp>Secure Digital#Speed_class_rating|SD speed class ratings]] {{https://www.techspot.com/articles-info/1591/images/2024-02-21-image-j.webp?1200}} {{https://cc.cnetcontent.com/vcs/sandisk/inline-content/SDSDXN128GG46/AEA19CB779F70D4950A52642449DA31558B9B555_SDUPSELLCHARTENV21_i_bannertn.jpg?1200}} {{https://www.dpreview.com/files/p/articles/9257063241/samsung-pro-plus-evo-plus-specs-chart.jpeg?800}} ====== Hard drive ====== Check [[software:linux#devices_and_filesystems|Devices and filesystems]] for software/hardware problems and solutions. * [[wp>USB_Attached_SCSI|USB Attached SCSI Protocol (UASP)]] * [[https://www.techporn.ph/understanding-the-differences-between-wd-hdd-colors/|Understanding The Differences Between WD HDD Colors]] * [[https://support.wdc.com/knowledgebase/answer.aspx?ID=15150|WD External Drive Hardware Encryption Compatibility Matrix]] === HDD recover === * http://hdd.by (Сергей Казанцев, MTS +375 33 374-93-93) * http://www.migel.by/ === Choosing best HDD for value === * [[https://www.amazon.com/Best-Sellers-Electronics-Internal-Hard-Drives/zgbs/electronics/1254762011|Amazon best sellers in Internal Hard Drives]] * [[https://www.makeuseof.com/tag/most-reliable-hard-drives/|5 Most Reliable Hard Drives According to Server Companies]] * [[https://www.lifewire.com/best-sata-hard-drives-833475|The 7 Best SATA Hard Drives to Buy in 2018]] * [[http://www.expertreviews.co.uk/internal-hard-drives/1406336/best-internal-hard-drives-the-best-high-capacity-hdds-to-buy-from|Best internal hard drives 2017: The best high-capacity HDDs to buy from £100]] * [[https://www.backblaze.com/blog/backblaze-drive-stats-for-2021/|Backblaze Hard Drive Stats for 2021]] ([[https://www.backblaze.com/blog/hard-drive-cost-per-gigabyte/|Hard Drive Cost Per Gigabyte]]) * [[https://www.backblaze.com/blog/backblaze-drive-stats-for-2023/|Backblaze Hard Drive Stats for 2023]] Models in 2017: ^ Name / model ^ Price ^ Capacity (TB) ^ Spindle rotation (RPM) ^ Reading / writing speed (MB/s) ^ Internal speed (MB/s) ^ Internal cache (MB) ^ Power consumption read/write/idle (W) ^ Price per GB ^ Warranty (years) ^ | [[tweakers>771511/seagate-barracuda-compute-3-komma-5-inch-4tb|Seagate Barracuda Compute / ST4000DM004]] | €103 | 4 | 5400 | 190/190 | ? | 256 | 3.7/3.7/2.5 | €0.025 | 2 | | [[tweakers>459622/wd-blue-wd40ezrz-4tb|WD Blue / WD40EZRZ]] | €105 | 4 | 5400 | 150/150 | ? | 64 | 5.3/5.3/3.4 | €0.025 | 2 | | [[tweakers>718665/hgst-deskstar-nas-(2017)-4tb|HGST Internal Drive Kit NAS WW / HDN726040ALE614, H3IKNAS400012872SWW]] | €122 | 4 | 7200 | 205/192 | 600 | 128 | 7.3/7.3/6.9 | €0.031 | 3 | | [[tweakers>347909/wd-red-wd40efrx-4tb|WD Red / WD40EFRX]] | €128 | 4 | 5400 | 150/150 | ? | 64 | 4.5/4.5/3.3 | €0.031 | 3 | ===== [[wp>SATA]] ===== {{ http://occlub.ru/images/posts/reviews/other/eSATAp/01.jpg?400|eSATApd pinout}} * SATA interface does not have any wires to transmit power, hence eSATA-to-SATA cable does supply power. eSATAp is eSATA+USB combined cable and supplies +5V provided by USB. [[wp>ESATAp#.2B12_V_issue|eSATApd ("power dual")]] additionally provides +12V power by means of side power pads. * [[wp>Port multiplier]] -- multiple SATA devices to be connected to a single SATA host port, however [[https://arstechnica.com/civis/viewtopic.php?f=11&t=1300645|community reports]] that it is challenging to set it up reliably. === SATA-to-IDE adapter === [[http://www.ebay.com/sch/items/?_nkw=Slim+Mini+Cd+Dvd+Cdrw+Rom+Drive+To+Pata+Ide+Ata+40pin+Hdd+Pcb+Adapter+Pc%2Fserver|{{http://i.ebayimg.com/images/g/6H0AAOxy~g5RofIm/s-l500.jpg?400|Slim IDE 40 pin IDC CD/DVD Drive -to- PC 40 pin IDE adapter – $4.79}}]] [[http://www.aliexpress.com/wholesale?SearchText=ide+sata+bidirectional|{{http://i01.i.aliimg.com/img/pb/362/068/058/1058068362_532.jpg?300|Bidirectional IDE SATA adapter – $7.90}}]] ===== SSD ===== * [[youtube>bz2k2ydUOc8|Hard drive in place of DVD drive of Sony Vaio Z]] * [[habrahabr>133915|Восстанавливаем запоротый SSD]] * [[habrahabr>133924|Статистика надёжности SSD носителей]] * [[habrahabr>165455|Оптимизация Windows для использования SSD диска: мифы и реальность]] * [[habrahabr>228321|Компания Samsung представила производительные SSD высокой ёмкости с вертикальной структурой ячеек памяти]] * [[habrahabr>242199|Почему по мере заполнения SSD падает скорость записи в RAID, или зачем нужен TRIM]] * [[habrahabr>263893|Твердотельные накопители от Samsung оправданы. Проблема оказалась в ядре Linux]] * [[habrahabr>272899|Проблемы выбора: Гибридные массивы хранения данных или массивы флеш-памяти]] * [[habrahabr>276001|Почему жёсткие диски останутся с нами надолго]] * [[habrahabr>305724|Особенности выбора твердотельных накопителей (SSD) для серверов и RAID-массивов]] ==== mSATA ==== [[tweakers>1168687/kingston-uv500-msata-480gb|{{https://tweakers.net/i/_Q-mk2ygZqLYT7_W4xW2WKxBp9c=/fit-in/1280x/filters:strip_icc()/i/2001942799.jpeg?250|Kingston UV500 mSATA 480GB}}]] [[https://www.amazon.de/Samsung-MZ-M6E1T0BW-860-EVO-Interne/dp/B078WQKL4X/|{{https://images-na.ssl-images-amazon.com/images/I/617c39h9x-L._SL1400_.jpg?300|Samsung 860 EVO mSATA 500GB}}]] ^ Item ^ Price ^ Volume (GB) ^ Read speed (GB/s) ^ Write speed ^ Technology ^ Power consumption (W, max) ^ Price per GB ^ | [[tweakers>1168687/kingston-uv500-msata-480gb|Kingston UV500 mSATA 480GB]] | [[https://azerty.nl/product/kingston/3506723/uv500-ssd-solid-state-drive-480-gb|€73.04]] | 480 | 520 | 500 | 3D V-NAND (TLC) | 2.32 | €0.148 | | [[tweakers>1133967/samsung-860-evo-msata-500gb|Samsung 860 EVO mSATA 500GB]] | [[https://www.amazon.de/Samsung-MZ-M6E1T0BW-860-EVO-Interne/dp/B078WQKL4X/|€83.48]] | 500 | 550 | 520 | 3D V-NAND (TLC) | 2.5 | €0.167 | ===== [[wp>M.2]] socket ===== {{https://www.dell.com/community/image/serverpage/image-id/28520i473D4520B240CC87?.jpg?800|M.2 SATA vs NVMe}} {{https://conectica.ro/fisiere/articole/diverse/m.2/m.2slotkey.jpg|Different types of M.2 SSD sockets}} {{http://media.bestofmicro.com/P/6/398778/original/A110-1-of-1-2.jpg?300|80mm, 60mm and 42mm SSD sizes}} [[aliexpress>32804940942|{{https://ae01.alicdn.com/kf/HTB1ZwBDQFXXXXcFXVXXq6xXFXXXV/230519690/HTB1ZwBDQFXXXXcFXVXXq6xXFXXXV.jpg?200|Mini PCI-e -to- M.2 NGFF 30mm/42mm adapter card for M.2 SSD – $2.05 (€1.94)}}]] * [[youtube>gVUdeBDi0lk|M.2 NVMe на старых материнских платах]] -- рассказывает про развитие PCI-e, на котором основан M.2, и про феномен SATA ===== High-reliability solutions ===== * [[habrahabr>269289|Как можно сделать отказоустойчивую систему хранения данных из отечественных серверов]] * For software solutions, check [[:software:linux#md-raid|md-RAID]] and [[:software:linux#btrfs|btrfs]]. ==== NAS ==== * [[http://geektimes.ru/post/231593/|Seagate Business Storage NAS 1-bay — хранение файлов и multimedia]] * [[https://support.wdc.com/knowledgebase/answer.aspx?ID=11425|Differences Between WD My Cloud Products]] === [[wp>Error recovery control]] === [[https://geektimes.ru/post/92701/|SCT ERC (SMART Command Transport Error Recovery Control)]] should be enabled in RAID configurations (Western Digital have 7 seconds setting): ''smartctl -l scterc,70,70 /dev/sdX'' See also: * [[https://www.mail-archive.com/linux-btrfs@vger.kernel.org/msg55254.html|RAID1 replace: SCT ERC setting]] ==== [[http://www.intel.com/content/www/us/en/architecture-and-technology/smart-response-technology.html|Intel Smart Response Technology]] ==== * Chipsets: Z68, HM67, QM67, H77, Q77, Z77, HM77, QS77, UM77, H87, Q87, Z87, HM87, QM87, H97, Z97 * [[youtube>U83ED4FOWiw|Intel Smart Response Technology (SRT) SSD caching featuring Gigabyte motherboard]] ==== Drives ==== === Toshiba MK2552GSX 250GB === Disk /dev/sda: 232.9 GiB, 250059350016 bytes, 488397168 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disklabel type: dos Disk identifier: 0xabeb59fb Device Boot Start End Sectors Size Id Type /dev/sda1 2048 10000000 9997953 4.8G 82 Linux swap / Solaris /dev/sda2 104859648 209717247 104857600 50G 83 Linux /dev/sda3 209717248 314574847 104857600 50G 83 Linux /dev/sda4 314574848 488397167 173822320 82.9G 83 Linux Timing buffered disk reads: 166 MB in 3.01 seconds = 55.21 MB/sec smartctl 6.4 2014-09-29 r3990 [i686-linux-3.14-1-686-pae] (local build) Copyright (C) 2002-14, Bruce Allen, Christian Franke, www.smartmontools.org === START OF INFORMATION SECTION === Model Family: Toshiba 2.5" HDD MK..52GSX Device Model: TOSHIBA MK2552GSX Serial Number: 8827P3VUT LU WWN Device Id: 5 000039 132480cbc Firmware Version: LV010A User Capacity: 250,059,350,016 bytes [250 GB] Sector Size: 512 bytes logical/physical Device is: In smartctl database [for details use: -P show] ATA Version is: ATA8-ACS (minor revision not indicated) SATA Version is: SATA 2.6, 1.5 Gb/s Local Time is: Tue Mar 10 21:13:17 2015 CET SMART support is: Available - device has SMART capability. SMART support is: Enabled === START OF READ SMART DATA SECTION === SMART overall-health self-assessment test result: PASSED General SMART Values: Offline data collection status: (0x00) Offline data collection activity was never started. Auto Offline Data Collection: Disabled. Self-test execution status: ( 0) The previous self-test routine completed without error or no self-test has ever been run. Total time to complete Offline data collection: ( 120) seconds. Offline data collection capabilities: (0x5b) SMART execute Offline immediate. Auto Offline data collection on/off support. Suspend Offline collection upon new command. Offline surface scan supported. Self-test supported. No Conveyance Self-test supported. Selective Self-test supported. SMART capabilities: (0x0003) Saves SMART data before entering power-saving mode. Supports SMART auto save timer. Error logging capability: (0x01) Error logging supported. General Purpose Logging supported. Short self-test routine recommended polling time: ( 2) minutes. Extended self-test routine recommended polling time: ( 118) minutes. SCT capabilities: (0x0039) SCT Status supported. SCT Error Recovery Control supported. SCT Feature Control supported. SCT Data Table supported. SMART Attributes Data Structure revision number: 16 Vendor Specific SMART Attributes with Thresholds: ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE 1 Raw_Read_Error_Rate 0x000b 100 100 050 Pre-fail Always - 0 2 Throughput_Performance 0x0005 100 100 050 Pre-fail Offline - 0 3 Spin_Up_Time 0x0027 100 100 001 Pre-fail Always - 1565 4 Start_Stop_Count 0x0032 100 100 000 Old_age Always - 3742 5 Reallocated_Sector_Ct 0x0033 100 100 050 Pre-fail Always - 0 7 Seek_Error_Rate 0x000b 100 100 050 Pre-fail Always - 0 8 Seek_Time_Performance 0x0005 100 100 050 Pre-fail Offline - 0 9 Power_On_Hours 0x0032 070 070 000 Old_age Always - 12252 10 Spin_Retry_Count 0x0033 174 100 030 Pre-fail Always - 0 12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 3486 192 Power-Off_Retract_Count 0x0032 100 100 000 Old_age Always - 62 193 Load_Cycle_Count 0x0032 059 059 000 Old_age Always - 410090 194 Temperature_Celsius 0x0022 100 100 000 Old_age Always - 54 (Min/Max 12/72) 196 Reallocated_Event_Count 0x0032 100 100 000 Old_age Always - 0 197 Current_Pending_Sector 0x0032 100 100 000 Old_age Always - 0 198 Offline_Uncorrectable 0x0030 100 100 000 Old_age Offline - 0 199 UDMA_CRC_Error_Count 0x0032 200 200 000 Old_age Always - 0 220 Disk_Shift 0x0002 100 100 000 Old_age Always - 116 222 Loaded_Hours 0x0032 073 073 000 Old_age Always - 10803 223 Load_Retry_Count 0x0032 100 100 000 Old_age Always - 0 224 Load_Friction 0x0022 100 100 000 Old_age Always - 0 226 Load-in_Time 0x0026 100 100 000 Old_age Always - 324 240 Head_Flying_Hours 0x0001 100 100 001 Pre-fail Offline - 0 SMART Error Log Version: 1 No Errors Logged SMART Self-test log structure revision number 1 Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error # 1 Extended offline Completed without error 00% 12235 - SMART Selective self-test log data structure revision number 1 SPAN MIN_LBA MAX_LBA CURRENT_TEST_STATUS 1 0 0 Not_testing 2 0 0 Not_testing 3 0 0 Not_testing 4 0 0 Not_testing 5 0 0 Not_testing Selective self-test flags (0x0): After scanning selected spans, do NOT read-scan remainder of disk. If Selective self-test is pending on power-up, resume after 0 minute delay. === Toshiba MK5065GSX 500GB === Disk /dev/sda: 465.8 GiB, 500107862016 bytes, 976773168 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disklabel type: dos Disk identifier: 0x02b7707d Device Boot Start End Sectors Size Id Type /dev/sda1 2048 9766911 9764864 4.7G 82 Linux swap / Solaris /dev/sda2 9766912 114624512 104857601 50G 83 Linux /dev/sda3 114626560 219484160 104857601 50G 83 Linux /dev/sda4 219486208 976773167 757286960 361.1G 5 Extended /dev/sda5 219488256 324345856 104857601 50G 83 Linux /dev/sda6 324349952 429207552 104857601 50G 83 Linux /dev/sda7 429211648 534069248 104857601 50G 83 Linux /dev/sda8 534073344 638930944 104857601 50G 83 Linux /dev/sda9 638935040 976773167 337838128 161.1G 83 Linux Timing buffered disk reads: 236 MB in 3.02 seconds = 78.21 MB/sec smartctl 6.5 2016-01-24 r4214 [i686-linux-4.7.0-1-686-pae] (local build) Copyright (C) 2002-16, Bruce Allen, Christian Franke, www.smartmontools.org === START OF INFORMATION SECTION === Model Family: Toshiba 2.5" HDD MK..65GSX Device Model: TOSHIBA MK5065GSX Serial Number: 20J5F2MZS LU WWN Device Id: 5 000039 25698613c Firmware Version: GJ002H User Capacity: 500,107,862,016 bytes [500 GB] Sector Size: 512 bytes logical/physical Rotation Rate: 5400 rpm Form Factor: 2.5 inches Device is: In smartctl database [for details use: -P show] ATA Version is: ATA8-ACS (minor revision not indicated) SATA Version is: SATA 2.6, 3.0 Gb/s (current: 1.5 Gb/s) Local Time is: Fri Nov 25 14:50:48 2016 CET SMART support is: Available - device has SMART capability. SMART support is: Enabled === START OF READ SMART DATA SECTION === SMART overall-health self-assessment test result: PASSED General SMART Values: Offline data collection status: (0x00) Offline data collection activity was never started. Auto Offline Data Collection: Disabled. Self-test execution status: ( 0) The previous self-test routine completed without error or no self-test has ever been run. Total time to complete Offline data collection: ( 120) seconds. Offline data collection capabilities: (0x5b) SMART execute Offline immediate. Auto Offline data collection on/off support. Suspend Offline collection upon new command. Offline surface scan supported. Self-test supported. No Conveyance Self-test supported. Selective Self-test supported. SMART capabilities: (0x0003) Saves SMART data before entering power-saving mode. Supports SMART auto save timer. Error logging capability: (0x01) Error logging supported. General Purpose Logging supported. Short self-test routine recommended polling time: ( 2) minutes. Extended self-test routine recommended polling time: ( 157) minutes. SCT capabilities: (0x003d) SCT Status supported. SCT Error Recovery Control supported. SCT Feature Control supported. SCT Data Table supported. SMART Attributes Data Structure revision number: 16 Vendor Specific SMART Attributes with Thresholds: ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE 1 Raw_Read_Error_Rate 0x000b 100 100 050 Pre-fail Always - 0 2 Throughput_Performance 0x0005 100 100 050 Pre-fail Offline - 0 3 Spin_Up_Time 0x0027 100 100 001 Pre-fail Always - 1977 4 Start_Stop_Count 0x0032 100 100 000 Old_age Always - 4169 5 Reallocated_Sector_Ct 0x0033 100 100 050 Pre-fail Always - 0 7 Seek_Error_Rate 0x000b 100 100 050 Pre-fail Always - 0 8 Seek_Time_Performance 0x0005 100 100 050 Pre-fail Offline - 0 9 Power_On_Hours 0x0032 077 077 000 Old_age Always - 9253 10 Spin_Retry_Count 0x0033 183 100 030 Pre-fail Always - 0 12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 4151 191 G-Sense_Error_Rate 0x0032 100 100 000 Old_age Always - 104 192 Power-Off_Retract_Count 0x0032 100 100 000 Old_age Always - 70 193 Load_Cycle_Count 0x0032 098 098 000 Old_age Always - 20619 194 Temperature_Celsius 0x0022 100 100 000 Old_age Always - 62 (Min/Max 14/64) 196 Reallocated_Event_Count 0x0032 100 100 000 Old_age Always - 0 197 Current_Pending_Sector 0x0032 100 100 000 Old_age Always - 0 198 Offline_Uncorrectable 0x0030 100 100 000 Old_age Offline - 0 199 UDMA_CRC_Error_Count 0x0032 200 200 000 Old_age Always - 0 220 Disk_Shift 0x0002 100 100 000 Old_age Always - 37 222 Loaded_Hours 0x0032 078 078 000 Old_age Always - 8807 223 Load_Retry_Count 0x0032 100 100 000 Old_age Always - 0 224 Load_Friction 0x0022 100 100 000 Old_age Always - 0 226 Load-in_Time 0x0026 100 100 000 Old_age Always - 330 240 Head_Flying_Hours 0x0001 100 100 001 Pre-fail Offline - 0 SMART Error Log Version: 1 No Errors Logged SMART Self-test log structure revision number 1 No self-tests have been logged. [To run self-tests, use: smartctl -t] SMART Selective self-test log data structure revision number 1 SPAN MIN_LBA MAX_LBA CURRENT_TEST_STATUS 1 0 0 Not_testing 2 0 0 Not_testing 3 0 0 Not_testing 4 0 0 Not_testing 5 0 0 Not_testing Selective self-test flags (0x0): After scanning selected spans, do NOT read-scan remainder of disk. If Selective self-test is pending on power-up, resume after 0 minute delay. === Toshiba MK1234GSX 120GB === Disk /dev/sdb: 120.0 GB, 120034123776 bytes 255 heads, 63 sectors/track, 14593 cylinders, total 234441648 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x328cc147 Device Boot Start End Blocks Id System /dev/sdb1 63 16064 8001 82 Linux swap / Solaris /dev/sdb2 * 16065 9783584 4883760 83 Linux /dev/sdb3 9783585 107442719 48829567+ 83 Linux /dev/sdb4 107442720 234436544 63496912+ 83 Linux Timing buffered disk reads: 100 MB in 3.03 seconds = 33.00 MB/sec smartctl 6.4 2014-09-29 r3990 [i686-linux-3.14-1-686-pae] (local build) Copyright (C) 2002-14, Bruce Allen, Christian Franke, www.smartmontools.org === START OF INFORMATION SECTION === Model Family: Toshiba 2.5" HDD (80 GB and above) Device Model: TOSHIBA MK1234GSX Serial Number: 37C7A0FFA Firmware Version: AH001A User Capacity: 120,034,123,776 bytes [120 GB] Sector Size: 512 bytes logical/physical Device is: In smartctl database [for details use: -P show] ATA Version is: ATA/ATAPI-7 (minor revision not indicated) Local Time is: Mon Apr 13 01:18:05 2015 CEST SMART support is: Available - device has SMART capability. SMART support is: Enabled === START OF READ SMART DATA SECTION === SMART Status not supported: Incomplete response, ATA output registers missing SMART overall-health self-assessment test result: PASSED Warning: This result is based on an Attribute check. General SMART Values: Offline data collection status: (0x00) Offline data collection activity was never started. Auto Offline Data Collection: Disabled. Self-test execution status: ( 112) The previous self-test completed having the read element of the test failed. Total time to complete Offline data collection: ( 435) seconds. Offline data collection capabilities: (0x5b) SMART execute Offline immediate. Auto Offline data collection on/off support. Suspend Offline collection upon new command. Offline surface scan supported. Self-test supported. No Conveyance Self-test supported. Selective Self-test supported. SMART capabilities: (0x0003) Saves SMART data before entering power-saving mode. Supports SMART auto save timer. Error logging capability: (0x01) Error logging supported. General Purpose Logging supported. Short self-test routine recommended polling time: ( 2) minutes. Extended self-test routine recommended polling time: ( 86) minutes. SMART Attributes Data Structure revision number: 16 Vendor Specific SMART Attributes with Thresholds: ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE 1 Raw_Read_Error_Rate 0x000b 100 097 050 Pre-fail Always - 0 2 Throughput_Performance 0x0005 100 100 050 Pre-fail Offline - 0 3 Spin_Up_Time 0x0027 100 100 001 Pre-fail Always - 1911 4 Start_Stop_Count 0x0032 100 100 000 Old_age Always - 257 5 Reallocated_Sector_Ct 0x0033 100 100 050 Pre-fail Always - 225 7 Seek_Error_Rate 0x000b 100 100 050 Pre-fail Always - 0 8 Seek_Time_Performance 0x0005 100 100 050 Pre-fail Offline - 0 9 Power_On_Hours 0x0032 001 001 000 Old_age Always - 53752 10 Spin_Retry_Count 0x0033 105 100 030 Pre-fail Always - 0 12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 254 192 Power-Off_Retract_Count 0x0032 100 100 000 Old_age Always - 74 193 Load_Cycle_Count 0x0032 001 001 000 Old_age Always - 4567709 194 Temperature_Celsius 0x0022 100 100 000 Old_age Always - 36 (Min/Max 15/79) 196 Reallocated_Event_Count 0x0032 100 100 000 Old_age Always - 225 197 Current_Pending_Sector 0x0032 100 100 000 Old_age Always - 18 198 Offline_Uncorrectable 0x0030 100 100 000 Old_age Offline - 0 199 UDMA_CRC_Error_Count 0x0032 200 200 000 Old_age Always - 1 220 Disk_Shift 0x0002 100 100 000 Old_age Always - 4149 222 Loaded_Hours 0x0032 001 001 000 Old_age Always - 43244 223 Load_Retry_Count 0x0032 100 100 000 Old_age Always - 0 224 Load_Friction 0x0022 100 100 000 Old_age Always - 0 226 Load-in_Time 0x0026 100 100 000 Old_age Always - 317 240 Head_Flying_Hours 0x0001 100 100 001 Pre-fail Offline - 0 SMART Error Log Version: 1 ATA Error Count: 13777 (device log contains only the most recent five errors) {{ dropboxdl>zp4uu95i3clbaxm/WD%20My%20Book%20Mirror%20Edition.jpg}} === Western Digital WDC WD10EAVS-00D7B0, 2TB === Disk /dev/sdc: 2000.4 GB, 2000397795328 bytes 46 heads, 44 sectors/track, 1930349 cylinders, total 3907026944 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x323ba1f4 Device Boot Start End Blocks Id System /dev/sdc1 2048 3907026943 1953512448 83 Linux Timing buffered disk reads: 98 MB in 3.00 seconds = 32.65 MB/sec === START OF INFORMATION SECTION === Model Family: Western Digital Caviar Green Device Model: WDC WD10EAVS-00D7B0 Serial Number: WD-WCAU42249907 LU WWN Device Id: 5 0014ee 201f3ff99 Firmware Version: 01.01A01 User Capacity: 1,000,204,886,016 bytes [1.00 TB] Sector Size: 512 bytes logical/physical Device is: In smartctl database [for details use: -P show] ATA Version is: ATA8-ACS (minor revision not indicated) SATA Version is: SATA 2.5, 3.0 Gb/s Local Time is: Tue Mar 10 21:29:32 2015 CET SMART support is: Available - device has SMART capability. SMART support is: Enabled === START OF READ SMART DATA SECTION === SMART overall-health self-assessment test result: PASSED General SMART Values: Offline data collection status: (0x84) Offline data collection activity was suspended by an interrupting command from host. Auto Offline Data Collection: Enabled. Self-test execution status: ( 0) The previous self-test routine completed without error or no self-test has ever been run. Total time to complete Offline data collection: (21000) seconds. Offline data collection capabilities: (0x7b) SMART execute Offline immediate. Auto Offline data collection on/off support. Suspend Offline collection upon new command. Offline surface scan supported. Self-test supported. Conveyance Self-test supported. Selective Self-test supported. SMART capabilities: (0x0003) Saves SMART data before entering power-saving mode. Supports SMART auto save timer. Error logging capability: (0x01) Error logging supported. General Purpose Logging supported. Short self-test routine recommended polling time: ( 2) minutes. Extended self-test routine recommended polling time: ( 241) minutes. Conveyance self-test routine recommended polling time: ( 5) minutes. SCT capabilities: (0x303f) SCT Status supported. SCT Error Recovery Control supported. SCT Feature Control supported. SCT Data Table supported. SMART Attributes Data Structure revision number: 16 Vendor Specific SMART Attributes with Thresholds: ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE 1 Raw_Read_Error_Rate 0x002f 200 200 051 Pre-fail Always - 0 3 Spin_Up_Time 0x0027 165 154 021 Pre-fail Always - 6725 4 Start_Stop_Count 0x0032 092 092 000 Old_age Always - 8768 5 Reallocated_Sector_Ct 0x0033 200 200 140 Pre-fail Always - 0 7 Seek_Error_Rate 0x002e 200 200 051 Old_age Always - 0 9 Power_On_Hours 0x0032 034 034 000 Old_age Always - 48710 10 Spin_Retry_Count 0x0032 100 100 051 Old_age Always - 0 11 Calibration_Retry_Count 0x0032 100 253 051 Old_age Always - 0 12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 100 192 Power-Off_Retract_Count 0x0032 200 200 000 Old_age Always - 8 193 Load_Cycle_Count 0x0032 198 198 000 Old_age Always - 8768 194 Temperature_Celsius 0x0022 104 085 000 Old_age Always - 46 196 Reallocated_Event_Count 0x0032 200 200 000 Old_age Always - 0 197 Current_Pending_Sector 0x0032 200 200 000 Old_age Always - 0 198 Offline_Uncorrectable 0x0030 200 200 000 Old_age Offline - 0 199 UDMA_CRC_Error_Count 0x0032 200 200 000 Old_age Always - 0 200 Multi_Zone_Error_Rate 0x0008 200 200 051 Old_age Offline - 0 SMART Error Log Version: 1 No Errors Logged SMART Self-test log structure revision number 1 Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error # 1 Short offline Completed without error 00% 14379 - # 2 Short offline Completed without error 00% 14044 - # 3 Extended offline Completed without error 00% 13868 - SMART Selective self-test log data structure revision number 1 SPAN MIN_LBA MAX_LBA CURRENT_TEST_STATUS 1 0 0 Not_testing 2 0 0 Not_testing 3 0 0 Not_testing 4 0 0 Not_testing 5 0 0 Not_testing Selective self-test flags (0x0): After scanning selected spans, do NOT read-scan remainder of disk. If Selective self-test is pending on power-up, resume after 0 minute delay. === Seagate WD10EAVS-00D7B0:0, 4TB === /dev/disk/by-id/usb-ST4000DM_004-2CV104_152D00539000-0:0: Timing buffered disk reads: 2 MB in 3.37 seconds = 607.95 kB/sec smartctl 6.6 2016-05-31 r4324 [i686-linux-4.14.0-1-686-pae] (local build) Copyright (C) 2002-16, Bruce Allen, Christian Franke, www.smartmontools.org === START OF INFORMATION SECTION === Device Model: ST4000DM004-2CV104 Serial Number: ZFN0BZAN LU WWN Device Id: 5 000c50 0a4389187 Firmware Version: 0001 User Capacity: 4,000,787,030,016 bytes [4.00 TB] Sector Sizes: 512 bytes logical, 4096 bytes physical Rotation Rate: 5425 rpm Device is: Not in smartctl database [for details use: -P showall] ATA Version is: ACS-3 T13/2161-D revision 5 SATA Version is: SATA 3.1, 6.0 Gb/s (current: 6.0 Gb/s) Local Time is: Mon Jul 23 15:53:15 2018 CEST SMART support is: Available - device has SMART capability. SMART support is: Enabled === START OF READ SMART DATA SECTION === SMART Status not supported: Incomplete response, ATA output registers missing SMART overall-health self-assessment test result: PASSED Warning: This result is based on an Attribute check. General SMART Values: Offline data collection status: (0x82) Offline data collection activity was completed without error. Auto Offline Data Collection: Enabled. Self-test execution status: ( 0) The previous self-test routine completed without error or no self-test has ever been run. Total time to complete Offline data collection: ( 0) seconds. Offline data collection capabilities: (0x7b) SMART execute Offline immediate. Auto Offline data collection on/off support. Suspend Offline collection upon new command. Offline surface scan supported. Self-test supported. Conveyance Self-test supported. Selective Self-test supported. SMART capabilities: (0x0003) Saves SMART data before entering power-saving mode. Supports SMART auto save timer. Error logging capability: (0x01) Error logging supported. General Purpose Logging supported. Short self-test routine recommended polling time: ( 1) minutes. Extended self-test routine recommended polling time: ( 484) minutes. Conveyance self-test routine recommended polling time: ( 2) minutes. SCT capabilities: (0x30a5) SCT Status supported. SCT Data Table supported. SMART Attributes Data Structure revision number: 10 Vendor Specific SMART Attributes with Thresholds: ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE 1 Raw_Read_Error_Rate 0x000f 082 065 006 Pre-fail Always - 148524176 3 Spin_Up_Time 0x0003 096 096 000 Pre-fail Always - 0 4 Start_Stop_Count 0x0032 100 100 020 Old_age Always - 19 5 Reallocated_Sector_Ct 0x0033 100 100 010 Pre-fail Always - 0 7 Seek_Error_Rate 0x000f 073 060 045 Pre-fail Always - 19711372 9 Power_On_Hours 0x0032 096 096 000 Old_age Always - 4219 (121 138 0) 10 Spin_Retry_Count 0x0013 100 100 097 Pre-fail Always - 0 12 Power_Cycle_Count 0x0032 100 100 020 Old_age Always - 17 183 Runtime_Bad_Block 0x0032 100 100 000 Old_age Always - 0 184 End-to-End_Error 0x0032 100 100 099 Old_age Always - 0 187 Reported_Uncorrect 0x0032 100 100 000 Old_age Always - 0 188 Command_Timeout 0x0032 100 100 000 Old_age Always - 0 189 High_Fly_Writes 0x003a 100 100 000 Old_age Always - 0 190 Airflow_Temperature_Cel 0x0022 062 058 040 Old_age Always - 38 (Min/Max 28/41) 191 G-Sense_Error_Rate 0x0032 100 100 000 Old_age Always - 0 192 Power-Off_Retract_Count 0x0032 100 100 000 Old_age Always - 9 193 Load_Cycle_Count 0x0032 100 100 000 Old_age Always - 1253 194 Temperature_Celsius 0x0022 038 042 000 Old_age Always - 38 (0 22 0 0 0) 195 Hardware_ECC_Recovered 0x001a 082 065 000 Old_age Always - 148524176 197 Current_Pending_Sector 0x0012 100 100 000 Old_age Always - 0 198 Offline_Uncorrectable 0x0010 100 100 000 Old_age Offline - 0 199 UDMA_CRC_Error_Count 0x003e 200 200 000 Old_age Always - 0 240 Head_Flying_Hours 0x0000 100 253 000 Old_age Offline - 2217 (121 81 0) 241 Total_LBAs_Written 0x0000 100 253 000 Old_age Offline - 1972621968 242 Total_LBAs_Read 0x0000 100 253 000 Old_age Offline - 1977601457 SMART Error Log Version: 1 No Errors Logged SMART Self-test log structure revision number 1 Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error # 1 Extended offline Completed without error 00% 2991 - # 2 Extended offline Completed without error 00% 2797 - # 3 Extended offline Completed without error 00% 1676 - SMART Selective self-test log data structure revision number 1 SPAN MIN_LBA MAX_LBA CURRENT_TEST_STATUS 1 0 0 Not_testing 2 0 0 Not_testing 3 0 0 Not_testing 4 0 0 Not_testing 5 0 0 Not_testing Selective self-test flags (0x0): After scanning selected spans, do NOT read-scan remainder of disk. If Selective self-test is pending on power-up, resume after 0 minute delay. === Seagate WD10EAVS-00D7B0:1, 4TB === /dev/disk/by-id/usb-ST4000DM_004-2CV104_152D00539000-0:1: Timing buffered disk reads: 2 MB in 3.37 seconds = 606.90 kB/sec smartctl 6.6 2016-05-31 r4324 [i686-linux-4.14.0-1-686-pae] (local build) Copyright (C) 2002-16, Bruce Allen, Christian Franke, www.smartmontools.org === START OF INFORMATION SECTION === Device Model: ST4000DM004-2CV104 Serial Number: ZFN0A1N1 LU WWN Device Id: 5 000c50 0a4158185 Firmware Version: 0001 User Capacity: 4,000,787,030,016 bytes [4.00 TB] Sector Sizes: 512 bytes logical, 4096 bytes physical Rotation Rate: 5425 rpm Device is: Not in smartctl database [for details use: -P showall] ATA Version is: ACS-3 T13/2161-D revision 5 SATA Version is: SATA 3.1, 6.0 Gb/s (current: 6.0 Gb/s) Local Time is: Mon Jul 23 15:54:54 2018 CEST SMART support is: Available - device has SMART capability. SMART support is: Enabled === START OF READ SMART DATA SECTION === SMART Status not supported: Incomplete response, ATA output registers missing SMART overall-health self-assessment test result: PASSED Warning: This result is based on an Attribute check. General SMART Values: Offline data collection status: (0x82) Offline data collection activity was completed without error. Auto Offline Data Collection: Enabled. Self-test execution status: ( 0) The previous self-test routine completed without error or no self-test has ever been run. Total time to complete Offline data collection: ( 0) seconds. Offline data collection capabilities: (0x7b) SMART execute Offline immediate. Auto Offline data collection on/off support. Suspend Offline collection upon new command. Offline surface scan supported. Self-test supported. Conveyance Self-test supported. Selective Self-test supported. SMART capabilities: (0x0003) Saves SMART data before entering power-saving mode. Supports SMART auto save timer. Error logging capability: (0x01) Error logging supported. General Purpose Logging supported. Short self-test routine recommended polling time: ( 1) minutes. Extended self-test routine recommended polling time: ( 489) minutes. Conveyance self-test routine recommended polling time: ( 2) minutes. SCT capabilities: (0x30a5) SCT Status supported. SCT Data Table supported. SMART Attributes Data Structure revision number: 10 Vendor Specific SMART Attributes with Thresholds: ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE 1 Raw_Read_Error_Rate 0x000f 083 064 006 Pre-fail Always - 213270752 3 Spin_Up_Time 0x0003 096 096 000 Pre-fail Always - 0 4 Start_Stop_Count 0x0032 100 100 020 Old_age Always - 17 5 Reallocated_Sector_Ct 0x0033 100 100 010 Pre-fail Always - 0 7 Seek_Error_Rate 0x000f 073 060 045 Pre-fail Always - 20862651 9 Power_On_Hours 0x0032 096 096 000 Old_age Always - 4217 (208 134 0) 10 Spin_Retry_Count 0x0013 100 100 097 Pre-fail Always - 0 12 Power_Cycle_Count 0x0032 100 100 020 Old_age Always - 17 183 Runtime_Bad_Block 0x0032 100 100 000 Old_age Always - 0 184 End-to-End_Error 0x0032 100 100 099 Old_age Always - 0 187 Reported_Uncorrect 0x0032 100 100 000 Old_age Always - 0 188 Command_Timeout 0x0032 100 100 000 Old_age Always - 0 189 High_Fly_Writes 0x003a 100 100 000 Old_age Always - 0 190 Airflow_Temperature_Cel 0x0022 061 056 040 Old_age Always - 39 (Min/Max 26/44) 191 G-Sense_Error_Rate 0x0032 100 100 000 Old_age Always - 0 192 Power-Off_Retract_Count 0x0032 100 100 000 Old_age Always - 16 193 Load_Cycle_Count 0x0032 100 100 000 Old_age Always - 1220 194 Temperature_Celsius 0x0022 039 044 000 Old_age Always - 39 (0 22 0 0 0) 195 Hardware_ECC_Recovered 0x001a 083 064 000 Old_age Always - 213270752 197 Current_Pending_Sector 0x0012 100 100 000 Old_age Always - 0 198 Offline_Uncorrectable 0x0010 100 100 000 Old_age Offline - 0 199 UDMA_CRC_Error_Count 0x003e 200 200 000 Old_age Always - 0 240 Head_Flying_Hours 0x0000 100 253 000 Old_age Offline - 2203 (133 5 0) 241 Total_LBAs_Written 0x0000 100 253 000 Old_age Offline - 1972672032 242 Total_LBAs_Read 0x0000 100 253 000 Old_age Offline - 2451154480 SMART Error Log Version: 1 No Errors Logged SMART Self-test log structure revision number 1 Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error # 1 Extended offline Completed without error 00% 2991 - # 2 Extended offline Completed without error 00% 2798 - # 3 Extended offline Completed without error 00% 1676 - SMART Selective self-test log data structure revision number 1 SPAN MIN_LBA MAX_LBA CURRENT_TEST_STATUS 1 0 0 Not_testing 2 0 0 Not_testing 3 0 0 Not_testing 4 0 0 Not_testing 5 0 0 Not_testing Selective self-test flags (0x0): After scanning selected spans, do NOT read-scan remainder of disk. If Selective self-test is pending on power-up, resume after 0 minute delay. === SanDisk Ultra Fit flash, USB2, 64GB === Disk /dev/sde: 57.9 GiB, 62176362496 bytes, 121438208 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disklabel type: dos Disk identifier: 0x2f784f2b Device Boot Start End Sectors Size Id Type /dev/sde1 * 2048 10487807 10485760 5G 83 Linux /dev/sde2 10487808 121438207 110950400 52.9G 83 Linux Timing buffered disk reads: 102 MB in 3.03 seconds = 33.63 MB/sec === SanDisk Ultra Fit flash, USB2, 64GB === Disk /dev/sdd: 57.9 GiB, 62109253632 bytes, 121307136 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Timing buffered disk reads: 96 MB in 3.04 seconds = 31.55 MB/sec ====== Power ====== * [[livejournal>ammo1/631987|Что фильтрует сетевой фильтр]] * [[habrahabr>254339|Самовосстанавливающиеся предохранители. Мифы и реальность]] * [[youtube>qthuFLNSrlg|Three phase electricity basics and calculations]], [[youtube>W0_1xRqT8uU|Single phase electricity explained]] ===== Power supply ===== * [[https://arduino.stackexchange.com/questions/815/most-compact-method-of-powering-arduino-from-wall-socket|Most compact method of powering Arduino from wall socket]] * [[https://www.prodctodc.com/10w-switching-power-supply-ac-85264v-dc-110370v-to-dc-5v-2a-buck-converterregulatordriver-dc-5v-2a-adapter-p-947.html|Power supply AC 85~264V to DC 5V 2A (10W)]] * [[https://www.reddit.com/r/AskElectronics/comments/4ia6qk/smallest_possible_230v_mains_ac_to_5v_dc/|Smallest possible 220V AC to 5V DC?]] * [[youtube>J66_8P043ko|ESP8266 3.3→5V voltage regulator based on HT7333]] * [[youtube>u0zNo1kPSfI|UPS 12 вольт и грамотная защита аккумуляторов от злой платы BMS (Battery Management System)]] * [[youtube>_kI8ySvNPdQ&t=1038|Using NCP785A as AC-DC linear voltage regulator (450V input / 15μA quiescent current, 15V / 10mA output)]] * [[youtube>ncKGV-H5QBA|Обзор повышающих, понижающих DC-DC преобразователей, BMS]] * [[youtube>GP2raUwUh2w|Как зарядить любой шуруповерт?]] * [[youtube>vhz2NW3qp8Q&t=559|Можно ли умереть от USB зарядника в ванной?]] * [[youtube>ZeqjPXw6XiU|Как работает импульсный блок питания]] * [[youtube>CldRIPpt9oE|Ремонт импульсного БП]] * [[youtube>w3hi0eM6sXo|Отличные блоки питания 5V 2AП]] ==== Linear voltage regulator ==== * [[http://blog.snapeda.com/2019/03/03/the-top-10-linear-voltage-regulator/|The top 10 linear voltage regulators]] * The dropout voltage is the differential voltage between the input and the output for which the regulator output no longer maintains regulation against further reductions in input voltage. LDO is low dropout voltage regulator. * Quiescent current (Iq), also called ground current, is the current used to operate the LDO, and is not delivered to the load. * [[http://ww1.microchip.com/downloads/en/devicedoc/20005685a.pdf|MIC29302]]: Vin 26V, Vdrop 80-600mV (depends on Iout), Iq 10-37mA, Iout 3A. * [[https://easyeda.com/editor#id=b4045cdfac524106945cbca07be7a2dc|MIC29302WU typical wiring]] * [[https://circuitdigest.com/electronic-circuits/high-voltage-low-dropout-voltage-regulator-circuit-using-mic29302|Wiring to adjust output voltage]] * To get the volage 3.1V use R1=300 * [[https://pdf1.alldatasheet.com/datasheet-pdf/view/207910/RICHTEK/RT9013-33GB.html|RT9013-33]]: Vin 2.2-5.5V, Vdrop 160-400mV (depends on Vin), Iq 25µA, Iout 0.5A. * [[http://ww1.microchip.com/downloads/en/devicedoc/22056b.pdf|MCP1825S]]: Vin 2.1-6V, Vdrop 210-350mV, Iq 120-220µA, Iout 0.5A. WeMos D1 имеет на борту LDO стабилизатор с собственным током потребления 5-10 мкА и минимальным падением вход/выход 250-300 мВ. Девайсы сделанные на основе этой платки, идеально будут работать с батарейным питанием и в спящем режиме. Но эту платку нельзя питать напряжением более 6В, в отличие от NodeMCU на Vin, которой можно подавать и более (но больше 7-8В тоже не рекомендую, иначе вся лишняя мощность ''(U-3.3V)×0.1'' будет выделяться на AMS1117 стабилизаторе в виде тепла). LM1117 и AMS1117 функциональные аналоги, и их параметры принципиально ничем не отличаются. ==== Synchronous converter ==== * [[youtube>y2YlCr8ZseQ|Преобразователь Mini560 MP2315]] -- Vin 5-20V, Vout 3.3V/5.2/9/12V, Iout 5A (6-8A needs cooling), Vpulse if Iout ≤ 3A -- 50mV / if ≥ 3A -- 100mV, efficiency 94..96%, [[aliexpress>1005001534795169|€1.53]] * [[youtube>tMeYUEkUya8|Очень эффективные микро преобразователи на MP2225]] -- Vin 4.5-16V, Vout 3.3V/5.2V, Iout 4A (5A needs cooling), Vpulse 15mV, efficiency 89..98%. * [[youtube>DhLlAg8FfU8|Тест XL4005 почти лабораторный блок питания]] -- Vin 5-32V, Vout 0.8-30V, :WARN: with Vout ≤ 1.5V current limit does not work, Iout 2A (4-5A needs cooling), Vpulse 50mV, efficiency 90..93%. * [[youtube>wC4bUR78jHU|DPS5015 DC-DC – мощный преобразователь на 15А и 50В (€36)]] -- Vin 6-60V, Vout 0-50V, Iout 0..15A, 750W max, Vpulse ≤ 100mV * [[https://www.patreon.com/posts/57544108|Synchronous buck converter]] ^ Feature \ Chip ^ MP2315 ^ MP2307 ^ MP2225 ^ SY8113B ^ XL4005 ^ | Input voltage (Vin) | 4.5-23V | 4.75-23V | 2.7-22V | 2.7-18V | 5-32V | | Output voltage (Vout) | 0.8-15V | 0.925-20V | 0.6-12V | 0.6-16V | 0.8-30V | | Continuous current (Iout) | 1.2A | 2.5A | 1.8A | 2A | 4A | | Maximum output current | 1.5A | 3A | 2A | 3A | 5A | | Switching frequency | 700 kHz | 340 kHz | 1 MHz | 1 MHz | 180 kHz | | Efficiency | Up to 95% | Up to 95% | Up to 95% | Up to 96% | Up to 90% | | Quiescent current (Iq) | 1.2 mA | 1.1 mA | 17 μA | 10 μA | 10 mA | | Package | SOT23-6 | SOIC-8 | QFN-12 | SOT23-6 | TO-263 | | Typical application | Small current applications | Higher current applications | Low-voltage, high-efficiency systems | Ultra-compact DC-DC converter | High-current applications | | Integrated compensation | Yes | Yes | Yes | Yes | No | * [[youtube>8VpA_AzX0og|Зарядка и защита литиевых аккумуляторов 2я часть про TP4056 + DW01 AT]], [[youtube>Eaczi2XC6UY|Зарядное устройство для Li-ion аккумуляторов на TP4056]], [[youtube>EEEp7YF3U9I|TP4056 + MT3608 = J5019]], [[youtube>042WlGISmyQ|Impulse charger for LiFePO₄ and Li-Ion batteries TP5000 (TP4056 competitor)]], [[youtube>f2yMs-JAyQM|TP4056 myth busting]] * [[youtube>Dd5x3WbEhwE|Идеальный модуль для повербанка MH-CD42 5В 2А с кнопкой и светодиодами уровня заряда]] * [[youtube>35SeOQUJpLM|Power Bank 80-го уровня на базе BQ25606 своими руками]] -- с контролем заряда/разряда, медленным зарядом при глубоком разряде, с защитой от перегрева, и DC-DC повышающим преобразователем 5V 1A. * [[youtube>ASu1DYEWmLM|ТОП полезных модулей из Китая 2024]] -- платы заряда 1-2S LiIon (FM4256, IP2326, IP2312, TP5000), модули PowerBank (IP5310, IP5389) * [[youtube>wAIIer5ESfE&t=1104s|Дешевые платы для powerbank c Aliexpress]] -- IP5306, IP5310, IP5407, SW6003, SW6206, SW6224, MP5216 [[aliexpress>1005005583969486|{{https://components101.com/sites/default/files/component_pin/Mini360-pinout.jpg?300|Mini360 MP2307 – €1.59}}]] [[aliexpress>32467578996|{{https://ae01.alicdn.com/kf/H2c0b256c35d649b08758d6e51007b596f/TP4056-Protection-Dual-Functions-5V-1A-Micro-USB-18650-Lithium-Battery-Charging-Board-Charger-Module.jpg_640x640.jpg?300|TP4056 + protection 5V 1A micro USB Li-ion battery charging board – €1.39 ($1.66)}}]] [[aliexpress>32957357521|{{https://ae01.alicdn.com/kf/HLB1hiMsX2jsK1Rjy1Xaq6zispXaG/3-7V-9V-5V-2A-Adjustable-Step-Up-18650-Lithium-Battery-Charging-Discharge-Integrated-Module.jpg_Q90.jpg?300|TP4056 + MT3608 – €1.33 ($1.57)}}]] [[aliexpress>32716899385|{{https://ae01.alicdn.com/kf/HTB1m9MzRXXXXXaMaXXXq6xXFXXXq.jpg?300|TP5000 – €0.60+€0.88 ($0.71+$1.05)}}]] [[aliexpress>1005001665605088|{{https://ae01.alicdn.com/kf/Hb4007464eb614b4baa8a80c8f40d3c902.jpg?300|TP5100 – €0.40+€0.93 ($0.48+$1.11)}}]] [[aliexpress>1005007736323815|{{https://m.media-amazon.com/images/I/71eagWBaFdL.jpg?300|IP5310 4.2V to 5V boost converter and charging with type-C (in/out) and I out = 3A – €1.45 ($1.51)}}]] ===== Power consumption ===== ==== USB ==== === USB 3.0 AT34 tester === [[aliexpress>32953742965|{{https://ae01.alicdn.com/kf/HTB1O0kAXhrvK1RjSszexh5ObFXaf.jpeg?300|USB 3.0 AT34 tester with color LCD – $6.65}}]] * [[http://gotronik.pl/images/img/at34_manual.pdf|AT34 manual]] ([[https://www.mediafire.com/file/pxv4k3lb4y2ac61/AT34+USB+3.0+tester+meter+instruction++7.4.pdf|AT34 USB 3.0 tester meter instruction 7.4.pdf]], [[https://m.mediafire.com/folder/77ueo252py4vc/AT34|AT34 USB 3.0 tester meter instruction 7.4.pdf]]) * [[http://www.fotolog.cl/rd-at34-usb-tester-voltmeter-ammeter-multimeter-with-lcd-display/|RD AT34 USB Tester Voltmeter Ammeter Multimeter with LCD Display]] * [[youtube>Alta7jcpgBI|Ruideng AT34 USB tester review, unboxing & usage]], [[youtube>aCgdDejPNrI|Тестер RD AT34 USB 3.0 (честный обзор)]] * Display screen: 0.96" color LCD display * Voltage measurement range: 3.70-30.00V * Voltage measurement resolution: 0.01V * Current measurement range:0-4A * Current measurement resolution:0.001A * Capacity accumulation rannge: 0-99999mAh * Voltage measurement accuracy: ±0.8％ under 25°C * Current measurement accuracy: ±1％ under 25°C * Energy measuring range: 0-999.99W * Load impedance range: 1Ω-9999.9Ω * Power measurement range: 0-120W * Temperature range: 0-80°C * Temperature measurement error: ±3°C * Working temperature range: 0-45°C * Product size: 64x22x12 mm * Refresh rate: 2Hz * Weight: 14g === FNIRSI FNB58 USB Tester === [[aliexpress>1005004717136482|{{https://ae01.alicdn.com/kf/S0c511939f0474095bf6ec71f7c5af2eaa.jpg?300|FNIRSI FNB58 USB Tester – $49.59 (€46.20)}}]] * 2.4″ LCD high-definition display, the measurement data is clearly visible. * Fast charge recognition mode: PD2.0, PD3.0, PPS, QC2.0, QC3.0, QC4, FCP, AFC, PE, MTK-PE, DASH VOOC, SuperVOOC. * Support low-speed waveform (voltage, current, D+, D-) drawing, 2sps...100sps sampling rate. * Support high-speed ripple (voltage, AC coupling) drawing, up to 4Mspssampling rate. * Save 10 sets of data, support up to 9 hours offline voltage and current curve recording. * Calculate battery capacity. * PD E-marker and Dash cable detection. * Cable internal resistance measurement by the differential pressure method. * Support QC2.O->PD2.0 protocol conversion * Item size: 82x42x12 mm * Item weight (with BT): 44.3g * Package size: 115x85x20 mm * Package weight (with BT): 91.7g Monitor voltage: * Ranges: 4～28V * Resolution: 0.00001V * Accuracy: ±(0.2‰+2) Monitor current: * Ranges: 0~7A * Resolution: 0.00001A * Accuracy: ±(0.5‰+2) Monitor power: * Ranges: 0~120W * Resolution: 0.00001W * Accuracy: ±(0.5‰+2) Load equivalent internal resistance: * Ranges: 0～9999.9Ω * Resolution: 0.0001Ω * Accuracy: ±(0.5‰+2) D+/D- voltage: * Ranges: 0~3.3V * Resolution: 0.001V * Accuracy: ±(1.0%+2) Capacity: * Ranges: 0～9999.99Ah * Resolution: 0.00001Ah Energy used: * Ranges: 0～9999.99Wh * Resolution: 0.00001Wh Cable resistance: * Ranges: 0～9999.9Ω * Resolution: 0.0001Ω * [[https://drive.google.com/drive/folders/1pZpihFrJUjU4yLVAIxwlofwE2l2trW39|Firmware, software, manual downloads]] ([[https://drive.google.com/drive/folders/1hOv76usYlKQwLIst0oDn_zbYuPlt8iEE|another copy]]) * [[https://fnirsi.aliexpress.com/store/2939001|Official Store]], [[http://www.fnirsi.cn/support|Support]] * [[https://usbchargingblog.wordpress.com/2021/01/20/fnirsi-fnb48-usb-meter-tester-upm-review/|FNIRSI FNB48 USB meter tester UPM review]] * [[youtube>l5w1FNMf-KQ|Мегаогляд: USB тестер FNB58 від FNIRSI]] * [[youtube>m9xkzSvYzeE|Fnirsi FNB58 USB Тестер]] * [[youtube>-XjO7ZJY6Ak|Тестит быстрые зарядки, кабели, ёмкость аккумуляторов]] * [[youtube>T9KnN1OilIA|Обзор USB тестера FNIRSI FNB58]] * [[youtube>Oe2GyRHo-Q8|Устройство последнего поколения, которое все хотят. USB Fnirsi FNB58]] ====== Voltmeter ====== * [[youtube>X9qaBVIR5y0|Высокоточный вольтамперметр на INA219 и Arduino ATmega8 своими руками]] * [[https://esphome.io/components/sensor/ina226.html|INA226 DC current and power sensor]] ====== Multimeter ====== * [[youtube>xdGQEVdxmQQ|$25 ANENG AN8008 Multimeter]] -- 1.7mA battery consumption, [[youtube>TP4kzXdJIF4|Aneng AN8009 vs AN8008]] -- AN8008 has signal generator, AN8009 has non-contact voltage detector (NCV). * [[youtube>n1fGDElbfGk|Высокоточный мультиметр ANENG AN870]] -- потребляет 1.7mA и True RMS работает до 1кГц (на этой частоте занижает на 0.7В) ====== Universal tester ====== [[aliexpress>4001331330448|{{https://ae01.alicdn.com/kf/H909451582b704af3a6038eaabaafacfcH/GM328-GM328B-PWM-Transistor-Tester-LCR-Diode-Capacitance-ESR-Meter-Voltage-Frequency-Meter-with-Case.jpg_Q90.jpg?300|AVR multitester – $13.86 (€12.00)}}]] * Display: 160x128 color LCD * Power supply: DC 6.8-12V * Current: ~ 30 mA * Resistance measurement: Max. 50MΩ * Resistance resolution: 0.01Ω * Capacitance measurement: 25pF -- 100mF * Capacitance resolution: 1pF * Frequency measurement: 1Hz-2MHz * [[wp>Pulse-width modulation|PWM]] generator: 1%-99% PWM * DC voltage measurement: max 50V * Screen size: 3.7x3 cm * PCB size: 7.8x6.2 cm * [[https://www.mikrocontroller.net/articles/AVR_Transistortester|Website]], [[https://www.mikrocontroller.net/attachment/143813/TTester_096k.pdf|original documentation (2012)]], [[github>madires/Transistortester-Warehouse/blob/master/Documentation/English/ttester-1.13k.pdf|updated documentation (2018)]] * [[github>madires/Transistortester-Warehouse/blob/master/Documentation/English/Clone-Comparison-Chart.pdf|List of all clones]] * [[https://www.eevblog.com/forum/testgear/$20-lcr-esr-transistor-checker-project/|Main discussion forum]], [[https://www.eevblog.com/forum/testgear/show-us-your-$20-transistor-tester-enclosures-and-mods/|cases and mods]] * [[github>blurpy/transistor-tester|Alternative project]] * Comparison of similar devices: [[youtube>C38eSPOF1o0|Transistor Tester M8 version M12864 comparison]], [[youtube>ICicfogJXps|The evolution of the electronic component tester]], [[youtube>7Br3L1B80ow|Is A $7 LCR / Component Tester Any Good?]] ^ Name ^ Power supply ^ Consumption (max/avg) ^ | CrossOver monitor | 24V, 5A | 79W / 77W | | Belkin router | 12V, 1A | 3.7W | | Zyxel router | 12V, 2A | 7.5W | | Netgear router | 12V, 2.5A | :HELP: | | Western Digital HDD | 12V, 3A | 22W / 14W | | AOpen miniPC | 19V, 3.42A | 33W / 25W | | Shuttle miniPC | 19V, 4.75A | :HELP: | | Fantec HDD bay | 12V, 5A | :HELP: | | Table lamp in office | ?V, ?A | 4.6W | | Foscam IP camera | 5V, 2A | 3.8W | | Dune HD | ?V, ?A | IPTV: 9.2W / 6.1W, MPEG4: 8.5W | ====== Wires and connectors ====== {{http://i.ebayimg.com/t/800-Wire-Copper-Crimp-Connector-Insulated-Cord-Pin-End-Terminal-AWG-22-to-10-Kit-/00/s/NDM3WDc5Mw==/z/DmAAAOxypNtSoAhz/$_3.JPG?500}} {{wire_spec.jpg?500}} [[https://www.endless-sphere.com/forums/viewtopic.php?t=98849#p1447486|{{https://www.endless-sphere.com/forums/download/file.php?id=248217&.jpg?1152|Matador's conductor strips ampacity chart}}]] {{https://esk8-news-objects.s3.dualstack.us-east-1.amazonaws.com/uploads/original/3X/8/4/84404cb94ba46e17992f9413670bf07537668f09.png|Nikel/steel/copper max current table}} {{wire_sizes.jpg?300}} {{http://www.king-cart.com/store/phoenixent/tlcrmp-15874b.jpg?500}} {{https://ae01.alicdn.com/kf/HTB1lawUN3TqK1RjSZPhq6xfOFXam/19-in-1-multifunctionele-Power-Opladen-Lader-Adapter-met-Multi-Connectoren-Lead-Cable-RC-Quadcopter-Auto.jpg?500|Connectors}} {{https://dl.dropboxusercontent.com/s/hlylph44xcmi3kz/power%20plugs%201.jpg|Plugs}} [[https://mynobook.blogspot.com/2016/10/pc-sockets.html|{{https://1.bp.blogspot.com/-ZymgErccdJ4/V_N_eWvo6PI/AAAAAAAADi0/2QywhBM9ZCoQ_1ZLqC8zIMTvb8z1EVnaACLcB/s1600/computer_hardware_poster_1_7_by_sonic840.png?700|Разъёмы компьютера}}]] ^ [[wp>American wire gauge|A.W.G.]] ^ mm² ^ ⌀ ^ Model ^ | 22 | 0.5 | 1.0 | E0506 | | 22 | 0.5 | 1.0 | E0508 | | 20 | 0.75 | 1.2 | E7508 | | 18 | 1.0 | 1.4 | E1008 | | 16 | 1.5 | 1.7 | E1510 | | 14 | 2.5 | 2.3 | E2512 | | 12 | 5.0 | 2.8 | E4012 | | 10 | 6.0 | 3.5 | E6012 | * [[https://www.calculator.net/voltage-drop-calculator.html|Voltage Drop Calculator]] * [[https://en.wikipedia.org/wiki/American_wire_gauge#Tables_of_AWG_wire_sizes|AWG wire sizes and the maximum current in ampere]] * [[http://www.ebay.com/sch/Connectors-Terminals-/50549/i.html|Car Audio & Video Installation → Connectors & Terminals]] * [[http://www.ebay.com/sch/Connectors-/109438/i.html|Connectors Plugs & Sockets → Connectors]] * [[youtube>m4B8XH5_RsQ|Универсальный кримпер CT-1108]] * [[youtube>tdX_zuHcK40|Стоит ли покупать детекторы скрытой проводки?]] ([[youtube>u4fRiCJaKl0|часть 2]]) * [[youtube>MuqIWO2GFqI|Высокочувствительный детектор скрытой проводки на одном транзисторе]] * [[youtube>vJ_pDenb3a0&t=240|Что может индикаторная отвёртка с прозвонкой]] ====== [[wp>DIY]] ====== Tools and accessories: * [[https://alexgyver.ru/all-for-soldering/|Всё для пайки с AliExpress]] -- электрические паяльники, полезные приспособления, текстолит, провода, коннекторы, штекеры, термоусадка * [[youtube>a-gjT8B95VI|40 моих инструментов с AliExpress]] * [[http://www.minidso.com/forum.php?mod=viewthread&tid=868&extra=page%3D1|TS100 soldering iron]] (12-24V, 65W) * [[github>Ralim/ts100|IronOS – custom TS100/TS80 firmware]], [[youtube>WlnpboYfxNk|TS100 Firmware how-to]], [[https://ralim.github.io/IronOS/Menu/|IronOS system menu]] * [[https://www.kirich.blog/|Блог об электронике и технике от kirich]] * [[https://www.kirich.blog/magaziny/aliexpress/interesnye-tovary-na-aliexpress/717-ssylki-na-raznye-tovary-kotorye-ya-chasto-pokupal-pokupayu-chast-2.html|Ссылки на разные товары, которые я часто покупал/покупаю часть 2]] * [[https://www.kirich.blog/magaziny/aliexpress/interesnye-tovary-na-aliexpress/651-populyarnye-i-poleznye-tovary-dlya-radiolyubiteley-i-ne-tolko.html|Популярные и полезные товары для радиолюбителей и не только]] * [[youtube>pPXddIR_QbM|Полезные советы. Лучшее за 2 года.]] Removing components: * [[youtube>eiQ_UpfDrAs|Как выпаять конденсаторы с материнской платы одним паяльником, легко и без фена]] * [[youtube>ij-4G9nZA2c|Как выпаять транзистор, ключ, силовую микросхему в корпусе SOT и TO263 одним паяльником без фена]] * [[youtube>DHUXPJoffyc|Как выпаивать, если не выпаивается радиодеталь из платы!]] Cashback: * [[https://habr.com/ru/company/dronk/blog/392267/|Кэшбэк Алиэкспресс — Выбираем кэшбэк-сервис для Aliexpress]] * [[youtube>HXuU_80NJ74|Обзор ТОП-6 лучших кэшбэк-сервисов (EPN, LetyShops, Megabonus и др.)]] Drill: * [[youtube>ee2jYR9HZgk|Awesome homemade drill guide]] * [[youtube>u5wFvzETV9M|How to Make a Automatic Drill Press Machine at Home]] * [[youtube>j1s6M-1svP8|Homemade Rotary Tool Plunge Base]] * [[youtube>oY18Vr77qwI|How to make a plunge router using door aldrop]] * [[https://www.thingiverse.com/thing:161190|Drill press for a Dremel]] * [[https://www.thingiverse.com/thing:754248|Dremel Drill Press (Remix)]] * [[youtube>5-jC5mdcLUs|5 способов запустить моторчик от жёсткого диска]] High current batteries: * [[https://alexgyver.ru/18650/#18650_hc|Высокотоковые аккумуляторы 18650]] * [[https://mysku.ru/blog/europe-stores/35648.html|Битва тяжеловесов или выбираем высокотоковые литиевые аккумуляторы]] 30A batteries (:WARN: [[http://budgetlightforum.com/comment/1425263#comment-1425263|Murata/Sony are expensive and overrated]]): * [[https://eu.nkon.nl/sony-us18650-vtc6.html|Sony / Murata US18650VTC6 3000mAh 30A]] -- ×2 = €7.90 + €2.95 * [[https://www.gearbest.com/batteries/pp_571929.html|Sony US18650VTC6 3000mAh 30A]] -- ×2 $11.98 (€10.82) * [[aliexpress>32742999085|Original US18650 VTC6 3000mAh Continuous 30A]] -- ×2 €11.52 + €2.63 (€10.48 + €2.40) Saw: * [[youtube>6kfcTQsJ3hc|Circular saw]] Glue: * [[youtube>s-wkBT1zuu0|B7000 T7000 T8000 E8000 smartphone glues review]] * [[youtube>l4AJqfOM-dc|TP-1000N, TP-2500, TP-2500F and Kafuter K-3022 glues video review]] * TP-2500 UV glue: \\ :INFO: This glue needs to be cured with the ultraviolet light or UV lamp of the 365NM above 12W. Microscope: * [[https://diylazy.wordpress.com/2018/11/28/microscope/|Делаем USB микроскоп для пайки]] ===== Power bank ===== 3D case models: * [[https://www.printables.com/model/94127-powerbank|3S 18650 PowerBank]] * [[https://cults3d.com/en/3d-model/gadget/21700-5ps-powerbank-myzl-yd24-2-3|5S 21700 PowerBank for MYZL-YD24-2.3]] * [[https://cults3d.com/en/3d-model/tool/powerbank-case-5s1p|5S 21700 Power Bank Enclosure for MYZL-YD24-2.3]] * [[https://cults3d.com/en/3d-model/gadget/case-for-assembling-a-large-power-bank-myzl-yd24-2-3|Case for assembling a large power bank for MYZL-YD24-2.3]] * [[https://www.thingiverse.com/thing:5820222|4S3P 18650 100W DIY Powerbank IP5389]] * :!: [[https://www.thingiverse.com/thing:5221197|4S 18650 Power Bank Case Box]] * :!: [[https://www.printables.com/model/1423823-21700-4s1p-18000mah-battery-pack|4S 21700 Power Bank IP5389]] * :!: [[https://www.thingiverse.com/thing:7108667|4S 32700 100W PD Powerbank case (IP5389)]] * :!: [[https://cults3d.com/en/3d-model/gadget/power-bank-100w|4S2P 18650 Power bank 100W]] * :!: [[https://www.thingiverse.com/thing:2612508|4S 18650 Battery Power Bank]] * [[https://www.thingiverse.com/thing:4194440|USB Power Bank LiPo model PCBA 2A H961-U]] * [[https://cults3d.com/en/3d-model/gadget/powerbank-sw6206-22-5-watt-5x-21700|Powerbank 5S 22.5W 21700 SW6206]] * [[youtube>xnQ7COEjiyg|Швидкий огляд мого DIY powerbank корпусу під модуль MYZL-YD24 (IP5389)]] ===== Meshtastic ===== * Order [[aliexpress>1005010168788998|Heltec V4 0.96 LoRa SX1262 GPS ESP32-S3 OLED solar-enabled WiFi BLE (€26)]] * Download [[https://github.com/meshtastic/firmware/releases/download/v2.7.15.567b8ea/firmware-esp32s3-2.7.15.567b8ea.zip|firmware-esp32s3-2.7.15.567b8ea.zip]] from [[https://github.com/meshtastic/firmware/releases/tag/v2.7.15.567b8ea|here]] and extract ''firmware-heltec-v4-2.7.15.567b8ea.bin'' from it. * Flash it with ''%%%USERPROFILE%\.platformio\penv\Scripts\python.exe esptool.py --chip esp32s3 --port COM10 write_flash -z 0x0 firmware-heltec-v4-2.7.15.567b8ea.bin%%'' Troubleshooting: * Power on device and then press PRG button. Then press and release RST button. Then Release PRG button. After than the following devices should be present: USB Serial Device (COM10) USB\VID_303A&PID_1001&MI_00\7&BC1B949&0&0000 USB JTAG/serial debug unit USB\VID_303A&PID_1001&MI_02\7&BC1B949&0&0002 See also: * [[youtube>cHX09AZ0vIA|Meshtastic: Build Your Own Private Off-Grid Network]] * [[youtube>knfJwfvbq1M|What is Meshtastic? Setting Up Your First Node (Beginner Guide)]] * [[youtube>h3nfkFhG7eM|Meshtastic Heltec v3 assembly, flashing, setup]] ===== Welder ===== === BIFRC DH20 spot welder === [[aliexpress>1005003025859706|{{ https://ae04.alicdn.com/kf/Hd05c9398b30e4144913e0054df198c403/Welderkit-DH20-Pro-DH30-Mini-Spot-Welding-Machine-With-Quick-Release-Pen-Nickel-Plate-For-18650.jpg?300|DH20 Pro/DH30 mini spot welding machine – €55.08 ($60.82)}}]] * [[youtube>hObbKlGUnSM&t=1043|BIFRC DH20 spot welder]] generates 350-400A current, [[youtube>RmXrwUhd9e4?t=398|Faiuot DH30]] generates 350-450A, === BIFRC welding board === [[aliexpress>1005006148112003|{{ https://ae01.alicdn.com/kf/S248261d8ce4149f09aba01b26a2af97dj.jpg?300|7-16V Lithium Battery Welding Board – €15.21 ($15.77)}}]] * According to different configurations, the welding thickness can be about 0.1mm-0.15mm. By replacing the thicker wire (10 mm²), it can barely weld 0.2mm thick plate. * Sort press the key to switch modes, each mode corresponds to 7 different welding times, indicated by LED: red (shortest welding time) / green / blue / white / yellow / pink / purple (longest welding time) * Long press sets the waiting time. The default is 3 seconds and the maximum is 10 seconds. * Power supply voltage: 12V-16.8V * Current requirements: 150A or more instantaneous output (for example car startup power, 3S aeromodel high rate battery pack, 20A or higher and 12V lead-acid battery with good performance) See also: * [[youtube>yyJZFzLnSGE&t=218s|Why capacitor is necessary?]] It is necessary to power the MOSFET gates for a short period of time, otherwise if voltage drops under a critical level, MOSFET resistance grows, and they get hot and burn out. * [[youtube>QDahfgPRqDc&t=382|Alternative way to connect a capacitor]] is to weld it to +5V output of the voltage regulator. * [[youtube>Zk_ir69kB5Q&t=529|Spot welder repair]] * [[youtube>0-OmBPwmKk4|BIFRC 1.2 richtig benutzen]] * [[youtube>ILjuSAJQaq8|BIFRC 1.2 Heißluftlöten Heißluftpistole]] * [[youtube>iuXaeCmEXaY|Точечная сварка под микроскопом]] === FNIRSI SWM-10 welder === [[aliexpress>1005008169855520|{{ https://ae01.alicdn.com/kf/Sf35668a9e1174595a69843c335a208933.jpg?300|FNIRSI SWM-10 welding tool – €43.59}}]] * Welding thickness: 0.1-0.25mm * Maximum welding current: 1200A * Battery capacity: 5000mAh * Display: 1.8″ TFT LCD * Connectivity: USB-A (out), USB-C (in/out) * Dimensions (LxWxT): 155x82x28mm * Weight: 560g See also: * [[youtube>PldTj-3UUHs|Best Spot Welder]]: (1) Awithz UF20A (capacitor, €93.39), (2) Ifire MF2 (capacitor, €48.18), (3) FNIRSI SWM-10 (accumulator, €43.59) * [[youtube>UzJlz_XuoF8&t=944|FNIRSI SWM-10 spot welder review/teardown]] -- 1200A current is theoretically achievable (3.6V / (battery 1.15 + 0.7×2 leads + 0.45 transistor) = 1200A) * [[youtube>4gsNtDIpPtI|FFNIRSI Spot Welder SWM-10]] test with 0.10mm, 0.15mm, 0.22mm strips on different welding modes * [[youtube>QCW1gKhY2_U&t=1473|Алгоритм работы и обновление прошивки точечной сварки FNIRSI SWM-10]] -- на последней прошивке v1.4 фактическая длина импульса дольше сконфигурированной в 3 раза (60ms вместо 20ms), что делает сварку более надёжной * [[youtube>Ua9z6Jw53OQ&t=335|FNIRSI SWM-10 spot welding machine review]] shows that it struggles with welding a nickel strip to 2mm iron plate * [[youtube>7mciILqflF0|Попытка ремонта ошибки “SHORT” в точечной сварке Fnirsi SWM-10]] * [[youtube>KvaYeH4f3os&t=478s|FNIRSI SWM-10 Spot Welder teardown disassembly]] ==== Oscilloscopes ==== * [[youtube>d-dJitaNv4U|HS402 Android STM32 USB DIY Oscilloscope]] -- create 1 MHz, 1.6 MSamples/s oscilloscope based on Arduino STM32F411 ([[https://refcircuit.com/articles/15-hs402-3-0-android-stm32-oscilloscope-pcb-and-assembling.html|article]]). * [[youtube>8ts5J09Y7Gc|Hantek 6022BE oscilloscope for $60]] -- 20 MHz, 48 MB/s sampling oscilloscope. * [[youtube>lxxS6rvrk3o|DS212: Open source 2-ch oscilloscope and signal generator for $170]] -- 150 MHz, 100 MSamples/s oscilloscope ([[https://www.banggood.com/MINI-DS213-Digital-Storage-Oscilloscope-Portable-15MHz-Bandwidth-100MSa-or-s-Sampling-Rate-2-Analog-Channels+2-Digital-Channels-3-Inch-Screen-p-1412378.html|$151]]). ==== Logic analysers ==== [[aliexpress>32613420798|{{https://ae01.alicdn.com/kf/HTB1QLkvLFXXXXaWXFXXq6xXFXXXj/221325424/HTB1QLkvLFXXXXaWXFXXq6xXFXXXj.jpg?300|Saleae Logic 16 clone – $34.32 (€31.12)}}]] * [[https://sigrok.org/wiki/|Sigrok]] -- signal analysis software suite * [[youtube>dobU-b0_L1I|Sigrok and Logic Analyzers]] * [[https://sourceforge.net/p/sigrok/mailman/sigrok-devel/thread/9a863df4-fdb9-46df-5015-4f67be396459%40mail.ru/|Problem using Saleae Logic 16 clone with PulseView]] ==== PCB ==== [[https://industrial.panasonic.com/ww/ss/technical/r1|{{https://a.d-cd.net/35a174ds-960.jpg?500|Size name and dimensions of SMD components}}]] [[https://electrotoki.ru/osnov-lektroniki-rubrika/lektronne-detali-i-komponent/kondensator/|{{https://electrotoki.ru/wp-content/uploads/2020/12/CONDENSATOR-1024x547.png?700|Maximum ESR values}}]] {{ https://lampagid.ru/wp-content/uploads/2017/05/image026-7.jpg|Capacitor marking}} {{ diode_marking.jpg?100|Diode marking}} * [[http://www.s-manuals.com/ru/smd|Коллекция руководств по SMD компонентам]] * [[https://electronics.stackexchange.com/questions/1024/good-tools-for-drawing-schematics/|Good tools for drawing schematics / electrical circuits]] * [[https://www.4pcb.com/trace-width-calculator.html|PCB Trace Width Calculator]] * [[youtube>14_jh3nLSsU|KiCad STM32 + RF + USB Hardware Design]] -- taking into account impedance for high-speed traces like RF or USB (so calculate correct width for given gap, avoid ground traces but put a solid / uninterrupted ground layer underneath) * [[youtube>t5phi3nT8OU|KiCad STM32 Hardware Design and JLCPCB Assembly]] Order: * [[https://www.pcbway.com/|PCBWay]] * [[https://jlcpcb.com/|JLCPCB]] Production: [[http://www.bravikov.ru/bet300/|{{ https://bravikov-ru.s3.amazonaws.com/filer_public_thumbnails/filer_public/bb/9f/bb9f4cd2-2de0-4b4f-bbca-93e91f726bdc/bet300a_cover_bubble.jpg__3186x2649_q85_subject_location-1593%2C1328_subsampling-2.jpg?300|Вертикальная ёмкость (ванна, аквариум) для травления печатных плат – 160×108×78 мм (внутри 150×100×20 мм)}}]] * [[youtube>HiEnmS6fb1g|Ёмкость для травления печатных плат]] * [[youtube>wX2O-8XWl6Y|Изготовление печатной платы с помощью плёночного фоторезиста]] * [[youtube>V_FkKgp31zQ|Плёночный фоторезист. Изготовление печатных плат в домашних условиях]], [[youtube>IfhOYhjXLDg|High quality DIY PCB boards at home]] * [[youtube>WF-NUliK4zM|Изготовление печатных плат. Новый метод ЛУТ 2.0]] * [[youtube>k9Zf0L1PH4Y|Печатная плата с паяльной маской и шелкографией, от А до Я в домашних условиях]] ==== From NiMH to LiIon ==== * [[https://mysku.ru/blog/china-stores/40848.html|3S-4S платы BMS или один из вариантов переделки шуруповерта под литий]] * [[youtube>uCL2wbVWcSc|Bms-3s и 4s при резком старте шуруповёрта срабатывает защита: устраняем проблему]] * [[youtube>1a2GP7dsQZk&t=755|Всё, что нужно знать для самостоятельной Переделки шуруповёрта Bosch-14.4v на Li-ion 18650]] -- расположение банок в корпусе * [[youtube>EUgzVP58ldg|Как правильно перейти на Li-Ion? Доработка АКБ и з/у электроотвёртки и шуруповертов Practyl и ЭНКОР.]] Использует штатную зарядку NiCd зарядку: * [[youtube>jZ0Nt4XJywM&t=84|Быстрая, простая и недорогая переделка шуруповерта Bosch 14.4В на li-ion]] * [[youtube>ukKuCGG38n8&t=1005|Lithium Battery + BMS + Nicd/Nimh Charger, Is it possible? Bosch cordless drill 14.4V PSR 1440]] -- демонстрирует, что аккумуляторы недозаряжены Переделка блока питания / зарядки за базе [[aliexpress>32957569900|готовой зарядки для LiIon]]: * [[youtube>736VUaUHPX0&t=245|Перевести шуруповерт на литий 14.4 - 16.8]] * [[youtube>GIXKdcaruFk&t=721|Как перевести шуруповёрт на литиевые аккумуляторы, подробный гайд]] -- предлагает использовать блок питания от ноутбука * [[youtube>Mlas6T-8E18&t=1710|Шуруповёрт с аккумулятором на 5 Ампер-Часа переделка НА Li-ion своими руками]] Переделка блока питания / зарядки на [[aliexpress>32580214850|базе DC-DC преобразователя с подстройкой]]: * [[youtube>p6LfPM-xMPA&t=775|Шуруповёрт на литий – а оно Вам надо?]] * [[youtube>uRdKlI9TldQ&t=408|Переделка шуруповерта 14V на литий (Li-ion) с переделкой зарядного устройства]] BMS: {{https://www.mikrocontroller.net/attachment/379678/610606910_1_1000x700_kontroler-bms-3s-4s-25-30a-zaryada-razryada-zaschity-balansir-dlya-li-ion-vinnitsa_rev003.jpg?400}} {{bms_hw-293_4s-40a_rev.2.3_scheme.png?600}} {{bms_hw-293_4s-40a_rev.2.3_scheme_top.png?300}} {{bms_hw-293_4s-40a_rev.2.3_top.png?300}} * [[youtube>_8BTY28tznU&t=1670s|Обзор]] -- Платы на базе контроллера HY2120CB, HY2213-BB3A, S-8254A, BM3451 * [[youtube>AxrgRZD3LNI?t=780|Подводные камни китайских BMS]] -- показывает, как на данной плате не срабатывает защита от перезаряда * [[https://robojax.com/learn/arduino/?vid=robojax_BMS_3S_40A_charger|The complete Guide to using 3S 40A Lithium BMS Battery Charger]] * [[https://forum.cxem.net/index.php?/topic/205088-bms-3s-40a-%D0%BD%D0%B0-%D0%B2%D1%8B%D1%85%D0%BE%D0%B4%D0%B5-%D0%BE%D0%BA%D0%BE%D0%BB%D0%BE-6-%D0%B2%D0%BE%D0%BB%D1%8C%D1%82/|BMS 3S 40A, на выходе около 6 вольт]] * Datasheets: [[https://datasheet.lcsc.com/szlcsc/HYCON-Tech-HY2213-BB3A_C113632.pdf|HY2213 BB3A]], [[https://html.alldatasheet.com/html-pdf/1143739/FUMAN/DW01FA/533/3/DW01FA.html|DW01FA]] ==== Solar panels ==== {{ lifepo4-cycles.png|Dependence of battery lifetime from Depth of Discharge (DoD) and charge rate}} * [[youtube>HdREFfZWgAU|Home solar power station with WINTER/SUMMER mode]] * [[youtube>JxdNwpPojVs|Солнечные панели: увеличение КПД в 4 раза за счёт поворотных механизмов!]] * [[youtube>0EpZSmbVYvc|Солнечные панели, простое поворотное устройство!]] * [[youtube>Nv4gXuJuP0s|Солнечная Электростанция, просто на пальцах, или шаг к независимости от ЖКХ!]] -- рассказывает о типах контроллеров (MPPT, PWM), типах солнечных батарей (монокристаллические, поликристаллические), типы аккумуляторов * [[youtube>6QIutZfsFs|DIY Solar Tracker: How much solar energy can it save?]] * [[youtube>plxLlm0jfiM|Солнечный трекер. Слежение за Солнцем без фотодатчиков]] * [[youtube>T1L_EjuFav4|How Solar Trackers Work]] * [[youtube>8V8zteJGilo|Solar Tracker VS Fixed panel. Comparison of energy efficiency]] * [[youtube>OaclDXTWsYg|Tutorial 02 Solar Tracker: The Linear Actuator]] * [[http://mexatrondiy.ru/solartracker/|Народный трекер для солнечных панелей]] * [[youtube>9FQfxt2zDfI|Контроллер для солнечного трекера]] * [[youtube>aQQE8V9NBXw|5 Year Solar Power Results - Payback?]] * [[youtube>4BjifKqsq6Q|Солнечная электростанция 9600w чуть подробнее]] * [[youtube>kLf8nD8KCII|LiFePo Хранилище для Солнечной электростанции на 8 кВатт*час своими руками]] * [[youtube>JvjvSMpjI6o|My 7kw Off Grid Solar, 37kwh Lithium Ion Battery Bank Cost vs Saving over 2 years?]] * [[youtube>rebIb5qd0Ow|How To Install Solar Panels Yourself For $4K - DIY 7KW - South Jordan, Utah - Cheap]] * [[youtube>w4qcoEXYqK0|The Ultimate Guide To DIY Off Grid Solar Power]] * [[youtube>b7hu1kmxFIo|Как выбрать солнечные батареи. Как сделать солнечную электростанцию своими руками]] * [[http://super-alternatiwa.narod.ru/solarhouse.htm|Ряд статей по альтернативной энергетике]] * [[youtube>m5wv4HcRNKw|The ugly truth behind grid-tie solar systems]] * [[youtube>PB6zojol9o0|MPPT vs PWM: Fast comparison for off-grid solar]] * [[youtube>_PgthByAYz4|Complete LiFePO₄ solar battery system design]] * [[https://www.mobile-solarpower.com/|Learn how to build an off-grid solar power system]] * [[youtube>YFKu_emNzpk|Is Home Battery Storage Financially Viable?]] BMS: * [[https://www.youtube.com/channel/UCHp1n3H8zHKqUau_1YmzRnA/videos|Цикл видео по солнечным станциям (BMS, LiFePO₄ сборки)]] * [[http://electrodacus.com/|SBMS (Solar Battery Management System)]]: SBMS0 (€128 / CA$189) + WiFi/USB for SBMS0 (€25.70 / CA$38) + DSSR20 (€33.20 / CA$49) = €186.9 * [[youtube>PldmjOPjGGY|Solar Battery Management System SBMS100]] * [[youtube>TrTu9uehOFg|LiFePO₄ Electrodacus SBMS0 Installation]], [[youtube>RGtIEjl-x3Y|LiFePO₄ Solar Charging Test]] * [[youtube>bg1x6X8tZok|SBMS 100 by ElectroDacus - Solar Battery Management System]] * [[youtube>9eufpXSpQT4|MPPT vs DSSR20]] * [[https://01319721522019860390.googlegroups.com/attach/67ff6b4a2d4cd/Beginner's%20Guide%20to%20ElectroDacus%20v0.6.pdf?part=0.1&view=1&vt=ANaJVrGETEzU9g4tulAdtg9V2wQMFiZBiPqTvOGNFIGZb9gcZAnuExn2KvlJawhXxxJqb1NloqxujXKOryTwqzZFQP0UUxGeN_Hlws0IlE_BGrmtMsb3lC4|ElectroDacus Beginner's Guide V0.6]] * [[https://diysolarforum.com/threads/the-electrodacus-sbms-thread-sbms0-dssr50-etc.4194/post-41782|MPTT/PWM is not needed for LiFePO₄ charging]] ([[https://diysolarforum.com/threads/the-electrodacus-sbms-thread-sbms0-dssr50-etc.4194/post-65168|similar explanation]]) * [[https://familyburton.com/solar-battery-testing-with-electrodacus-part-1/|Solar battery testing with Electrodacus]] with Grafana/InfluxDB setup * [[github>stuartpittaway/diyBMSv4|diyBMS v4]] -- do it yourself battery management system for Lithium ion battery packs/cells * [[youtube>bFUMxgrz-yo|diyBMS v4 Central Controller Build]] * [[youtube>rT-1gvkFj60|BMS (Battery Management System): DIY or Buy]] MPTT: * [[https://www.instructables.com/DIY-1kW-MPPT-Solar-Charge-Controller/|1kW ESP32 MPPT Solar Charge Controller]] Controllers: * [[youtube>3suqsclnWiI|Контроллер умной теплицы своими руками]] -- универсальный контроллер для полива, освещения, проветривания (линейным или шаговым двигателем), обогрева, охлаждения, увлажнения * [[youtube>FuieIazVHYg&t=364|Изменение напряжения шунтом + INA226 + ESP32]] Power stations: ^ Title ^ Lowest price / per Wh ^ Capacity ^ AC input ^ DC input ^ AC output ^ USB output ^ Cigarette Output Port ^ DC output ^ Wireless charger ^ Lamp ^ Battery type ^ Dimensions ^ Weight ^ Other ^ | [[https://iallpowers.eu/en-nl/products/allpowers-r600-portable-power-station-600w-299wh-with-lifep04-battery-1|ALLPOWERS R600 (€249)]] ([[https://www.amazon.nl/ALLPOWERS-Draagbaar-powerstation-AC-uitgang-zonne-generator/dp/B0BX43L7G4/|€250]]) | [[aliexpress>1005007425600001|€169 (free shipping)]] / €0.56 | 299Wh | 400W (charges 0-100% in 1 hour) | XT60, 12-60V, 220W max | 2×, total 600W (1200W max) | 2×USB-C (2×100W) + 2×USB-A (2×18W) | 120W max | :NO: | 15W max | :YES: LED with SOS mode | LiFePO₄, 3000+ recharge cycles | 28x19x19 cm | 5.6kg | UPS switch in 10ms | | [[https://www.amazon.nl/Anker-Generator-AC-uitgangen-LiFePO%E2%82%84-accupakket-stroomuitval/dp/B09Q6CVW69/|Anker 521 (€249)]] | [[https://www.ibood.com/nl/s-nl/o/anker-powerhouse-521-power-station/853499|€180+€5.95]] / €0.72 | 256Wh | :NO: | DC7909, 11-28V, 65W max | 200W (400W max) | 1×USB-C 60W + 2×USB-A (2×18W) | 12V, 10A (120W) | :NO: | :NO: | :YES: LED | LiFePO₄ | 21x21x14 cm | 3.7kg | Dual charging using DC-in (65W) + USB-C (60W) is 125W | | [[https://www.bol.com/nl/nl/p/bluetti-eb3a-draagbare-powerstation-268wh-600w-lifepo4-batterijback-up-voor-buiten-kamperen/9300000167938870/|BLUETTI EB3A (€229)]] | :HELP: / €0.89 | 268Wh | 350W (charges 0-100% in 1.2 hours) | 12-28V, 8.5A, 200W max | 600W (1200W max) | 1×USB-C 100W + 2×USB-A (2×18W) | 12V, 10A (120W) | 2× 12V/10A DC 5521 (5.5 mm) | 15W max | :NO: | LiFePO₄ | 25x18x18 cm | 4.6kg | Dual charging using AC-in + DC-in is 430W | | [[https://www.bol.com/nl/nl/p/haisic-hs600-portable-power-station/9300000152852737/|Haisic HS600 (€299)]] | [[https://www.robbshop.nl/haisic-mobiel-powerstation-648wh-600wp|€259 (free shipping)]] / €0.40 | 648Wh | :NO: | 12V-30V, 6.5A, 150W max | 650W | 2×USB-C (60W + 18W) + 3×USB-A (3×18W) | 12V, 10A (120W) | :NO: | :NO: | :YES: LED with SOS mode | LiIon, 6S10P | 29x16x15 cm | 6kg | :DEL: No AC charging, and DC charging takes 6-7 hours | {{https://iallpowers.eu/cdn/shop/files/ALLPOWERSR600_2.jpg?300|ALLPOWERS R600}} {{https://m.media-amazon.com/images/I/71aqwzl3BmL._AC_SL1500_.jpg?300|Anker 521}} {{https://media.s-bol.com/BmAZ9308KnxW/1wGEyDV/1200x1009.jpg?300|BLUETTI EB3A}} {{https://media.s-bol.com/Oz82lk6R2w5B/Xj5jzk/1200x956.jpg?300|Haisic HS600}} Batteries: [[https://www.sokbattery.com/blog/post/How-to-Connect-the-LiFePO4-Lithium-Iron-Phosphate-Battery-in-Parallel|{{ https://www.sokbattery.com/media/wysiwyg/0012.png|How to Connect the LiFePO₄ battery in parallel?}}]] * [[https://www.amazon.nl/batterijcel-geschikt-zonne-energie-doe-het-zelf-systemen/dp/B0D5MS1D3X/|LiFePO₄ 3.2V 280Ah (4pcs) – €399]] * [[https://www.18650batterystore.com/products/eve-lf280k|EVE LF280K V3 Grade A Cells 3.2V LiFePO₄ 280Ah – €85]] * [[https://eu.nkon.nl/eve-lf280-prismatic-280ah-280a-lifepo4.html|Eve LF280K v3 Prismatic 280Ah LiFePO₄ 3.2V A-grade – €84]] * [[https://www.aliexpress.com/item/4000316031708.html|LiFePO₄ 3.2V 150Ah (4pcs) – €448.20]] * [[https://www.aliexpress.com/item/4000982585061.html|LiFePO₄ 3.2V 120Ah (4pcs) – €294.23]] Panels: * [[https://www.zonnepanelen-info.nl/lg-zonnepanelen-kosten/|LG zonnepanelen + kosten]] * [[https://www.zonnepanelen.net/nl/zonnepanelen-vergelijken?capacity=10&size=0&sort=title|Zonnepanelen vergelijken]] Calculators: * [[http://www.solarelectricityhandbook.com/solar-irradiance.html|Solar irradiance]] is a measure of how much solar power you are getting at your location * [[https://pvwatts.nrel.gov/|NREL's PVWatts Calculator]] -- estimates the energy production and cost of energy of grid-connected photovoltaic (PV) energy systems throughout the world. Theory: {{https://www.pveducation.org/sites/default/files/PVCDROM/Modules/Animations/bypass_diode_current_flow.gif|How bypass diode in solar panel works}} * [[youtube>AbxHoQF4ADk&t=642|Little shadow from antenna pole drops Solar Output by 20%!]] Also explains the function of bypass diodes. * [[https://www.quora.com/What-is-the-difference-between-a-voltage-source-and-a-current-source-Practical-examples-of-a-voltage-source-and-a-current-source|What is the difference between a voltage source and a current source?]] ==== LEGO ==== * [[lifehackeru>2015/01/16/novaya-zhizn-privychnyh-veshhej-lego|Новая жизнь привычных вещей: конструктор Lego]] [[https://www.groupon.nl/deals/legocompatibletape-5|{{https://img.grouponcdn.com/deal/36Fvt5z746EfbQ6MdC8fra5uRdUz/36-2048x1229/v1/c700x420.jpg?300|Block tapes for LEGO – €5.99 (+ €2.99)}}]] ==== Детские конструкторы для взрослых ==== * [[habrahabr>243929|FISCHERTECHNIK: хемотроника, ионисторы, электрохимические суперконденсаторы внутри детского конструктора для программистов]] * [[http://geektimes.ru/post/250112/|Codie — робот, который учит программировать]] * [[habrahabr>261299|Программируем MindCub3r – робота-сборщика кубика Рубика]] * [[habrahabr>250989|Приём радиофаксов и прочих цифровых передач с помощью обычного приёмника и компьютера]] * [[https://blogs.fsfe.org/the_unconventional/2015/08/31/sdr-on-linux/|Software-defined radio on GNU/Linux]] * [[habrahabr>275953|Опыт домашнего марсоходостроения]] ==== Hardware problems ==== * [[livejournal>ammo1/568950|Что делать, если компьютер не включается]] * [[http://forum.ru-board.com/topic.cgi?forum=27&topic=4438&start=1960|Компьютер не стартует, не запускается -- проверить по пунктам]] * [[habrahabr>258077|Про блоки питания NONAME, или краткий экскурс в устройство служебной информации дисков Western Digital]] -- в момент очередного обновления какого-то из этих модулей, произошёл выброс по питанию, обусловленный низким качеством БП, и запись произошла не в искомый модуль, а в DIR {{tag>USB HDD SSD barcode}}