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Arduino Mega 8x Charger Discharger V2.1

9 months ago 2371
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Description

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Arduino 8x 18650 Smart Charger / Discharger

Arduino 8x 18650 Smart Charger / Discharger

BOM

ID Name Designator Footprint Quantity Manufacturer Part Manufacturer Supplier Supplier Part Price LCSC Assembly Mounted
1 MEGA 2560 U0 ARDUINO MEGA 2560 PRO EMBED 55X38MM (ROBOTDYN) 1 ARDUINO MEGA 2560 PRO EMBED (RobotDyn) Yes
2 TP4056 TP1,TP2,TP3,TP4,TP5,TP6,TP7,TP8 CARGADOR LITION TP4056E 8 Yes
3 Header-Male-2.54_1x1 P1,P2,P3,P4,P5,P6,P7,P8 HDR-1X1/2.54 8 Header-Male-2.54_1x1 LCSC LCSC Yes C81276
4 IRLZ44N Q1,Q2,Q3,Q4,Q5,Q6,Q7,Q8,Q9,Q10,Q11,Q12,Q13,Q14,Q15,Q16,Q17,Q18,Q19,Q20,Q21,Q22,Q23,Q24 TO-220AB 24 Yes
5 10k R1,R10,R2,R11,R3,R12,R4,R13,R5,R14,R6,R15,R7,R16,R8,R17 AXIAL-0.4 16 Yes
6 DS18B20+ U1,U2,U3,U4,U5,U6,U7,U8,U9 TO-92(TO-92-3) 9 DS18B20+ MAXIM LCSC Yes C9753
7 4.7k R9 AXIAL-0.4 1 Yes
8 3.3Ω 10W PR1,PR2,PR3,PR4,PR5,PR6,PR7,PR8 WJ2EDGVC-5.08-2P 8 LCSC Yes C8445
9 BATTERY18650 BAT1,BAT2,BAT3,BAT4,BAT5,BAT6,BAT7,BAT8 BH-18650-A-BETA 8 Yes
10 Rotary Encoder P9 ENCODER_KY-040 1 Header-Male-2.54_1x5 LCSC LCSC Yes C50951
11 LCD 20x4 I2C P10 HDR-4X1/2.54 1 Header-Male-2.54_1x4 LCSC LCSC Yes C59481
12 Ethernet Module W5500 U12 ETHERNET SHIELD W5500 ALIEXPRESS 1 Ethernet Shield W5500 Yes
13 5V 10A PR9 WJ2EDGVC-5.08-2P 1 LCSC Yes C8445
14 10K R18,R19,R20,R21,R22,R23,R24,R25,R51,R53,R55,R57,R59,R61,R63,R65,R67,R69,R71,R73,R75,R77,R79,R81 AXIAL-0.4 24 Yes
15 5.5 x 2.1mm VIN POWER DC 5.5 X 2.1 MM 1 Yes
16 NO U13 ARDUINO USB HOST SHIELD MINI - BRETT 1 Yes
17 MicroSDcard P11 MICRO SD CARD MODULE - BRETT 1 Yes
18 IRLML2502TRPBF Q25,Q26,Q27,Q28,Q29,Q30,Q31,Q32,Q33,Q34,Q35,Q36,Q37,Q38,Q39,Q40,Q41,Q42,Q43,Q44,Q45,Q46,Q47,Q48 SEEED-SOT-23 24 Yes
19 10k R26,R27,R28,R29,R30,R31,R32,R33,R34,R35,R36,R37,R38,R39,R40,R41,R42,R43,R44,R45,R46,R47,R48,R49,R52,R54,R56,R58,R60,R62,R64,R66,R68,R70,R72,R74,R76,R78,R80,R82 R0603 40 Yes
20 3.3Ω 10W P12,P13,P14,P16,P17,P18,P19,P20 HDR-1X2/2.54 8 Header-Female-2.54_1x2 LCSC LCSC Yes C49661
21 RX TX Serial P15 HDR-3X1/2.54 1 Header-Male-2.54_1x3 LCSC LCSC Yes C49257
22 4.7k R50 R0603 1 Yes
23 ESP8266 ESP-01 Adapter for Arduino U11 ESP8266 ESP-01 ADAPTER FOR ARDUINO 1 ESP8266-1 Yes

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Comments (6)

Charles Bynaker Reply

Missing board outline layer in gerber file

Marcin Gębuś Reply

At night I dreamed about the charging project with the help of TP4056, 18650. And unloading with the measurement of capacity. The whole is controlled with the help of Arduino. Before I discovered yours. I like your project very much.


I have a question:
For what purpose do you use IRLML2502TRPBF and IRLZ44N in parallel? What is the purpose of the automatic disconnection of the negative battery terminal from the mass (Q6+Q30 for example)?

Magnus3eriksson Reply

hello. do you have a gerber file for this Arduino 8x 18650 Smart Charger / Discharger

brettwatty Reply

@Magnus3eriksson Gerber files can be generated from the "Open in Editor"

brettwatty Reply

@marcingebus the two Mosfets are for THT or SMD options.

cookiecookie12 Reply

what type 3.3 ohm 10watt resistor did you use and why are there two different ones in the BOM

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