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STD DIY 16x Discharger with Arduino Mega 2560 pro mini
License: Public Domain
Mode: Editors' pick
- 3
Update time：
2023-09-09 18:41:39
Creation time：
2020-08-17 12:44:11
Description
Building 16x(I got only 15 PWM pins.. so 15x)18650 battery discharger. Without charging capabilities. Only concerned for testing batteries.I have copied some of brettwatty's design https://easyeda.com/brettwatty. You can use LM 324 replacing LM 358.
Design Drawing
schematic diagram
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| ID | Name | Designator | Footprint | Quantity |
|---|---|---|---|---|
| 1 | LM358 | U18,U1,U2,U3,U4,U5,U6,U7 | DIP8 | 8 |
| 2 | IRLZ44 | Q32,Q2,Q1,Q3,Q4,Q5,Q6,Q7,Q8,Q9,Q10,Q11,Q12,Q13,Q14,Q15 | TO-220AB | 16 |
| 3 | DS18B20+ | U20,U19,U10,U8,U11,U12,U13,U14,U15,U16,U21,U22,U23,U24,U25,U26,U27 | TO-92(TO-92-3) | 17 |
| 4 | 4.7k | R31 | AXIAL-0.4 | 1 |
| 5 | Rotary Encoder | P9 | ENCODER_KY-040 | 1 |
| 6 | LCD 20x4 I2C | P10 | HDR-4X1/2.54 | 1 |
| 7 | 5V 10A | PR9 | WJ2EDGVC-5.08-2P | 1 |
| 8 | 5.5 x 2.1mm | VIN1 | POWER DC 5.5 X 2.1 MM | 1 |
| 9 | MicroSDcard | P11 | MICRO SD CARD MODULE - BRETT | 1 |
| 10 | RX TX Serial | P15 | HDR-3X1/2.54 | 1 |
| 11 | 4.7k | R32 | R0603 | 1 |
| 12 | 1K | R33 | AXIAL-0.4 | 1 |
| 13 | 1K | R34 | R0603 | 1 |
| 14 | 10k | R35,R54 | R0603 | 2 |
| 15 | 10K | R36,R53 | AXIAL-0.4 | 2 |
| 16 | Mega_2560_pro_mini | U9 | MEGA 2560 PRO MINI | 1 |
| 17 | 100uF | C1 | CAP-D5.0XF2.0 | 1 |
| 18 | CD74HC4067 | P1 | CD74HC4067 | 1 |
| 19 | 1N4007 | D7 | DO-41 | 1 |
| 20 | ESP8266 ESP-01 Adapter for Arduino | U17 | ESP8266 ESP-01 ADAPTER FOR ARDUINO | 1 |
| 21 | 1k | R45,R16,R17,R18,R19,R20,R21,R22,R23,R24,R25,R26,R27,R28,R29,R30 | RES-6.5MMX2.3MM-1/4W | 16 |
| 22 | 1N4148WT | D6 | SOD-523 | 1 |
| 23 | 16PIN | JP1,JP2 | B16B-PH-K-S | 2 |
| 24 | BD139 | Q33 | TO-126 | 1 |
| 25 | JST_2PIN | FAN1 | JST-PH-2-THM | 1 |
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