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Arduino Mega 8x Charger Discharger V2.1

1 year ago 4430
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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 (14)

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

brettwatty Reply

@cookiecookie12 it is just two different mounting options

brettwatty Reply

@cookiecookie12 go to my site www.vortexit.co.nz for the BOM and my youTube channel for the build videos https://www.youtube.com/user/brettwatty101/

brettwatty Reply

www.vortexit.co.nz for the BOM and my youTube channel for the build videos https://www.youtube.com/user/brettwatty101/

Shahin Saghebi Reply

The Schedule and Arduino One-Channel Code also send this device

Shahin Saghebi Reply

I can have your email ?

brettwatty Reply

Required Components






























ComponentQuantityAli Express LinkeBay Link
18650 Battery Holder8AliExpresseBay
Arduino Mega 2560 (RobotDyn)1AliExpresseBay
TP4056 Module8AliExpresseBay
LCD 2004 20x4 with IIC/I2C/TWI Serial1AliExpresseBay
Rotary Encoder KY-040 Module1AliExpresseBay
Temp Sensor DS18B209AliExpresseBay

SMD or THT Components not both


THT (Through hole)


















ComponentQuantityAli Express LinkeBay Link
N Channel MOSFET IRLZ44N24AliExpresseBay
10K – 1/4W Resistor THT32AliExpresseBay
4.7K – 1/4W Resistor THT1AliExpresseBay

SMD (Surface mount)


















ComponentQuantityAli Express LinkeBay Link
N Channel MOSFET IRLML2502TRPBF24AliExpresseBay
10K – 1/8W Resistor SMD 060332AliExpresseBay
4.7K – 1/8W Resistor SMD 06031AliExpresseBay

Discharge Resistor Components Options
Ceramic


















ComponentQuantityAli Express LinkeBay Link
Resistor Ceramic 3.3ohm 10W8AliExpresseBay
Connector KF301-2P 5.08mm8AliExpresseBay
Resistor Carbon Film 3.3ohm 5W8AliExpress
brettwatty Reply

Aluminium


























ComponentQuantityAli Express LinkeBay Link
Resistor Aluminium 3.3ohm 10W8AliExpresseBay
Heatsink 150mm x 20mm x 6mm1AliExpresseBay
Connector JST XH2.54 2 Pin8AliExpresseBay
Screw M2.5 x 4mm Stainless16AliExpresseBay
Standoff M3 x 25mm Brass F-F2AliExpresseBay

Power


























ComponentQuantityAli Express LinkeBay Link
7.5V Power Adaptor 5.5mm x 2.1mm1AliExpresseBay
Jack DC 5.5mm x 2.1mm PCB Female1AliExpresseBay
5V 10A PSU1AliExpresseBay
OR
5V 10A Power Pack1AliExpresseBay

Mounting






























ComponentQuantityAli Express LinkeBay Link
Rubber Feet8AliExpresseBay
Standoff M3 x 35mm Brass F-F8AliExpresseBay
M3 Stainless Set 300PCS1AliExpresseBay
With Headers
Standoff M3 x 18mm Brass F-F4AliExpresseBay
Standoff M3 x 12mm Brass F-F2AliExpresseBay

brettwatty Reply

Headers (Optional)


















































ComponentQuantityAli Express LinkeBay Link
Header Female 4 x 1 - LCD1AliExpresseBay
Header Female 5 x 1 - Rotary Encoder1AliExpresseBay
Header Female 6 x 1 - SD Card1AliExpresseBay
Header Female 12 x 1 - USB Host2AliExpresseBay
Header Female 3 x 2 - Arduino1AliExpresseBay
Header Female 5 x 2 - Ethernet1AliExpresseBay
Header Female 16 x 2 - Arduino1AliExpresseBay
Header Female 21 x 2 - Arduino1AliExpresseBay
Header Male 2.54 Round - TP40561AliExpresseBay
Header Female 2.54 Round - TP40561AliExpresseBay
Headers Male 2.54 Square - USB Host1AliExpresseBay
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