WiFi adapter

Model	WiFi standards	Bluetooth	Other connectivity possibilities	Approximate price	Notes
Intel AX200	802.11a/b/g/n/ac/ax	v5.1	WiFi 6, MU-MIMO, OFDMA	$20-30
Intel Wireless-AC 7260	802.11a/b/g/n/ac	v4.0	WiDi, Intel Wireless Display	$15-25	Intel Wireless-N 7260 does not support 5GHz band (802.11/g/n only)
Intel 5100 512ANHMW	802.11a/b/g/n			$10-20
Atheros AR5B95-H / U98Z062.10	802.11a/b/g/n			$10-15
Atheros AR5B95	802.11a/b/g/n			$8-12

Check your driver capabilities using netsh wlan show drivers and inspecting the output contains 802.11a/n/ac.

Barcode scanner

Search eBay for "USB barcode scanner"
Which Barcode Scanner Interface is right for me? describes the “Keyboard Wedge” and RS232 types of scanners.
zbar – open source software suite for reading bar codes from various sources, such as video streams, image files and raw intensity sensors.
- zbarw – Windows port
Barcode Readers in Linux

USB

Flash

Hard drive

Check Devices and filesystems for software/hardware problems and solutions.

HDD recover

http://hdd.by (Сергей Казанцев, MTS +375 33 374-93-93)
http://www.migel.by/

Choosing best HDD for value

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)
Seagate Barracuda Compute / ST4000DM004	€103	4	5400	190/190	?	256	3.7/3.7/2.5	€0.025	2
WD Blue / WD40EZRZ	€105	4	5400	150/150	?	64	5.3/5.3/3.4	€0.025	2
HGST Internal Drive Kit NAS WW / HDN726040ALE614, H3IKNAS400012872SWW	€122	4	7200	205/192	600	128	7.3/7.3/6.9	€0.031	3
WD Red / WD40EFRX	€128	4	5400	150/150	?	64	4.5/4.5/3.3	€0.031	3

SATA

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. eSATApd ("power dual") additionally provides +12V power by means of side power pads.
Port multiplier – multiple SATA devices to be connected to a single SATA host port, however community reports that it is challenging to set it up reliably.

SATA-to-IDE adapter

SSD

mSATA

Item	Price	Volume (GB)	Read speed (GB/s)	Write speed	Technology	Power consumption (W, max)	Price per GB
Kingston UV500 mSATA 480GB	€73.04	480	520	500	3D V-NAND (TLC)	2.32	€0.148
Samsung 860 EVO mSATA 500GB	€83.48	500	550	520	3D V-NAND (TLC)	2.5	€0.167

M.2 socket

M.2 NVMe на старых материнских платах – рассказывает про развитие PCI-e, на котором основан M.2, и про феномен SATA

High-reliability solutions

Как можно сделать отказоустойчивую систему хранения данных из отечественных серверов
For software solutions, check md-RAID and btrfs.

NAS

Error recovery control

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

Intel Smart Response Technology

Chipsets: Z68, HM67, QM67, H77, Q77, Z77, HM77, QS77, UM77, H87, Q87, Z87, HM87, QM87, H97, Z97
Intel Smart Response Technology (SRT) SSD caching featuring Gigabyte motherboard

Drives

Toshiba MK2552GSX 250GB

fdisk -l /dev/sda

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

hdparm -t /dev/sda

Timing buffered disk reads: 166 MB in  3.01 seconds =  55.21 MB/sec

smartctl -a /dev/sda

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

fdisk -l /dev/sda

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

hdparm -t /dev/sda

Timing buffered disk reads: 236 MB in  3.02 seconds =  78.21 MB/sec

smartctl -a /dev/sda

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

fdisk -l /dev/sdb

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

hdparm -t /dev/sdb

Timing buffered disk reads: 100 MB in  3.03 seconds =  33.00 MB/sec

smartctl -d sat -a /dev/sdb

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)

Western Digital WDC WD10EAVS-00D7B0, 2TB

fdisk -l /dev/sdc

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

hdparm -t /dev/sdc

Timing buffered disk reads:  98 MB in  3.00 seconds =  32.65 MB/sec

smartctl -d sat -a /dev/sdc

=== 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

hdparm -t /dev/sde

smartctl -d sat -a /dev/sde

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

hdparm -t /dev/sdf

smartctl -d sat -a /dev/sdf

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

fdisk -l /dev/sdc

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

hdparm -t /dev/sdc

Timing buffered disk reads: 102 MB in  3.03 seconds =  33.63 MB/sec

SanDisk Ultra Fit flash, USB2, 64GB

fdisk -l /dev/sdd

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

hdparm -t /dev/sdd

Timing buffered disk reads:  96 MB in  3.04 seconds =  31.55 MB/sec

Power

Power supply

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 (I_q), also called ground current, is the current used to operate the LDO, and is not delivered to the load.

MIC29302: V_in 26V, V_drop 80-600mV (depends on I_out), I_q 10-37mA, I_out 3A.
- MIC29302WU typical wiring
- Wiring to adjust output voltage
- To get the volage 3.1V use R1=300

RT9013-33: V_in 2.2-5.5V, V_drop 160-400mV (depends on V_in), I_q 25µA, I_out 0.5A.

MCP1825S: V_in 2.1-6V, V_drop 210-350mV, I_q 120-220µA, I_out 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

Преобразователь Mini560 MP2315 – V_in 5-20V, V_out 3.3V/5.2/9/12V, I_out 5A (6-8A needs cooling), V_pulse if I_out ≤ 3A – 50mV / if ≥ 3A – 100mV, efficiency 94..96%, €1.53
Очень эффективные микро преобразователи на MP2225 – V_in 4.5-16V, V_out 3.3V/5.2V, I_out 4A (5A needs cooling), V_pulse 15mV, efficiency 89..98%.
Тест XL4005 почти лабораторный блок питания – V_in 5-32V, V_out 0.8-30V, with V_out ≤ 1.5V current limit does not work, I_out 2A (4-5A needs cooling), V_pulse 50mV, efficiency 90..93%.
DPS5015 DC-DC – мощный преобразователь на 15А и 50В (€36) – V_in 6-60V, V_out 0-50V, I_out 0..15A, 750W max, V_pulse ≤ 100mV
Synchronous buck converter

Feature \ Chip	MP2315	MP2307	MP2225	SY8113B	XL4005
Input voltage (V_in)	4.5-23V	4.75-23V	2.7-22V	2.7-18V	5-32V
Output voltage (V_out)	0.8-15V	0.925-20V	0.6-12V	0.6-16V	0.8-30V
Continuous current (I_out)	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 (I_q)	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

Зарядка и защита литиевых аккумуляторов 2я часть про TP4056 + DW01 AT, Зарядное устройство для Li-ion аккумуляторов на TP4056, TP4056 + MT3608 = J5019, Impulse charger for LiFePO₄ and Li-Ion batteries TP5000 (TP4056 competitor), TP4056 myth busting
Идеальный модуль для повербанка MH-CD42 5В 2А с кнопкой и светодиодами уровня заряда
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.
ТОП полезных модулей из Китая 2024 – платы заряда 1-2S LiIon (FM4256, IP2326, IP2312, TP5000), модули PowerBank (IP5310, IP5389)
- Дешевые платы для powerbank c Aliexpress – IP5306, IP5310, IP5407, SW6003, SW6206, SW6224, MP5216

Power consumption

USB

USB 3.0 AT34 tester

Specifications

FNIRSI FNB58 USB Tester

Specifications

Voltmeter

Высокоточный вольтамперметр на INA219 и Arduino ATmega8 своими руками
- INA226 DC current and power sensor

Multimeter

$25 ANENG AN8008 Multimeter – 1.7mA battery consumption, Aneng AN8009 vs AN8008 – AN8008 has signal generator, AN8009 has non-contact voltage detector (NCV).
Высокоточный мультиметр ANENG AN870 – потребляет 1.7mA и True RMS работает до 1кГц (на этой частоте занижает на 0.7В)

Universal tester

Specifications

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
Western Digital HDD	12V, 3A	22W / 14W
AOpen miniPC	19V, 3.42A	33W / 25W
Shuttle miniPC	19V, 4.75A
Fantec HDD bay	12V, 5A
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

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

DIY

Tools and accessories:

Всё для пайки с AliExpress – электрические паяльники, полезные приспособления, текстолит, провода, коннекторы, штекеры, термоусадка
- 40 моих инструментов с AliExpress
TS100 soldering iron (12-24V, 65W)
- IronOS – custom TS100/TS80 firmware, TS100 Firmware how-to, IronOS system menu
Блог об электронике и технике от kirich
- Ссылки на разные товары, которые я часто покупал/покупаю часть 2
- Популярные и полезные товары для радиолюбителей и не только
Полезные советы. Лучшее за 2 года.

Removing components:

Cashback:

Drill:

High current batteries:

30A batteries ( Murata/Sony are expensive and overrated):

Sony / Murata US18650VTC6 3000mAh 30A – ×2 = €7.90 + €2.95
Sony US18650VTC6 3000mAh 30A – ×2 $11.98 (€10.82)
Original US18650 VTC6 3000mAh Continuous 30A – ×2 €11.52 + €2.63 (€10.48 + €2.40)

Welder:

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)

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.
Alternative way to connect a capacitor is to weld it to +5V output of the voltage regulator.
Spot welder repair
BIFRC 1.2 richtig benutzen
BIFRC 1.2 Heißluftlöten Heißluftpistole
Точечная сварка под микроскопом

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): 155×82×28mm
Weight: 560g

Best Spot Welder: (1) Awithz UF20A (capacitor, €93.39), (2) Ifire MF2 (capacitor, €48.18), (3) FNIRSI SWM-10 (accumulator, €43.59)
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)
FFNIRSI Spot Welder SWM-10 test with 0.10mm, 0.15mm, 0.22mm strips on different welding modes
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
FNIRSI SWM-10 spot welding machine review shows that it struggles with welding a nickel strip to 2mm iron plate
Попытка ремонта ошибки “SHORT” в точечной сварке Fnirsi SWM-10
FNIRSI SWM-10 Spot Welder teardown disassembly
BIFRC DH20 spot welder generates 350-400A current, Faiuot DH30 generates 350-450A,

Saw:

Circular saw

Glue:

B7000 T7000 T8000 E8000 smartphone glues review
TP-1000N, TP-2500, TP-2500F and Kafuter K-3022 glues video review
TP-2500 UV glue:
This glue needs to be cured with the ultraviolet light or UV lamp of the 365NM above 12W.

Microscope:

Делаем USB микроскоп для пайки

Oscilloscopes

HS402 Android STM32 USB DIY Oscilloscope – create 1 MHz, 1.6 MSamples/s oscilloscope based on Arduino STM32F411 (article).
Hantek 6022BE oscilloscope for $60 – 20 MHz, 48 MB/s sampling oscilloscope.
DS212: Open source 2-ch oscilloscope and signal generator for $170 – 150 MHz, 100 MSamples/s oscilloscope ($151).

Logic analysers

Sigrok – signal analysis software suite
- Sigrok and Logic Analyzers
Problem using Saleae Logic 16 clone with PulseView

PCB

Коллекция руководств по SMD компонентам

Good tools for drawing schematics / electrical circuits
PCB Trace Width Calculator
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)
KiCad STM32 Hardware Design and JLCPCB Assembly

Order:

Production:

From NiMH to LiIon

3S-4S платы BMS или один из вариантов переделки шуруповерта под литий

Использует штатную зарядку NiCd зарядку:

Быстрая, простая и недорогая переделка шуруповерта Bosch 14.4В на li-ion
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 готовой зарядки для LiIon:

Перевести шуруповерт на литий 14.4 - 16.8
Как перевести шуруповёрт на литиевые аккумуляторы, подробный гайд – предлагает использовать блок питания от ноутбука
Шуруповёрт с аккумулятором на 5 Ампер-Часа переделка НА Li-ion своими руками

Переделка блока питания / зарядки на базе DC-DC преобразователя с подстройкой:

BMS:

Обзор – Платы на базе контроллера HY2120CB, HY2213-BB3A, S-8254A, BM3451
Подводные камни китайских BMS – показывает, как на данной плате не срабатывает защита от перезаряда
The complete Guide to using 3S 40A Lithium BMS Battery Charger
BMS 3S 40A, на выходе около 6 вольт
Datasheets: HY2213 BB3A, DW01FA

Solar panels

BMS:

Цикл видео по солнечным станциям (BMS, LiFePO₄ сборки)
SBMS (Solar Battery Management System): SBMS0 (€128 / CA$189) + WiFi/USB for SBMS0 (€25.70 / CA$38) + DSSR20 (€33.20 / CA$49) = €186.9
diyBMS v4 – do it yourself battery management system for Lithium ion battery packs/cells
- diyBMS v4 Central Controller Build
- BMS (Battery Management System): DIY or Buy

MPTT:

1kW ESP32 MPPT Solar Charge Controller

Controllers:

Контроллер умной теплицы своими руками – универсальный контроллер для полива, освещения, проветривания (линейным или шаговым двигателем), обогрева, охлаждения, увлажнения
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
ALLPOWERS R600 (€249) (€250)	€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		15W max	LED with SOS mode	LiFePO₄, 3000+ recharge cycles	28×19×19 cm	5.6kg	UPS switch in 10ms
Anker 521 (€249)	€180+€5.95 / €0.72	256Wh		DC7909, 11-28V, 65W max	200W (400W max)	1×USB-C 60W + 2×USB-A (2×18W)	12V, 10A (120W)			LED	LiFePO₄	21×21×14 cm	3.7kg	Dual charging using DC-in (65W) + USB-C (60W) is 125W
BLUETTI EB3A (€229)	/ €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		LiFePO₄	25×18×18 cm	4.6kg	Dual charging using AC-in + DC-in is 430W
Haisic HS600 (€299)	€259 (free shipping) / €0.40	648Wh		12V-30V, 6.5A, 150W max	650W	2×USB-C (60W + 18W) + 3×USB-A (3×18W)	12V, 10A (120W)			LED with SOS mode	LiIon, 6S10P	29×16×15 cm	6kg	No AC charging, and DC charging takes 6-7 hours

Images

Batteries:

Panels:

Calculators:

Solar irradiance is a measure of how much solar power you are getting at your location
NREL's PVWatts Calculator – estimates the energy production and cost of energy of grid-connected photovoltaic (PV) energy systems throughout the world.

Theory: