Arduino Mega 8x Charger Discharger V2.1

2 years ago

Open source license:

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Description

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Arduino 8x 18650 Smart Charger / Discharger

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Arduino 8x 18650 Smart Charger / Discharger

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BOM

ID Name Designator Footprint Quantity Mounted
1 MEGA 2560 U0 ARDUINO MEGA 2560 PRO EMBED 55X38MM (ROBOTDYN) 1 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 Yes
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 Yes
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 Yes
9 BATTERY18650 BAT1,BAT2,BAT3,BAT4,BAT5,BAT6,BAT7,BAT8 BH-18650-A-BETA 8 Yes
10 Rotary Encoder P9 ENCODER_KY-040 1 Yes
11 LCD 20x4 I2C P10 HDR-4X1/2.54 1 Yes
12 Ethernet Module W5500 U12 ETHERNET SHIELD W5500 ALIEXPRESS 1 Yes
13 5V 10A PR9 WJ2EDGVC-5.08-2P 1 Yes
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 Yes
21 RX TX Serial P15 HDR-3X1/2.54 1 Yes
22 4.7k R50 R0603 1 Yes

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All comments 15

Surya Karmakar

Are you discharging the battery at a constant current rate? Is there any option to control the amount of discharge?
Also what controller you are using for USB bar code scanner?

2020-05-13 14:21:26
Reply

brettwatty

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

2019-08-18 21:34:42
Reply

brettwatty

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

2019-08-18 21:34:34
Reply

brettwatty

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

2019-08-18 21:33:46
Reply

Shahin Saghebi

I can have your email ?

2019-06-13 16:41:19
Reply

Shahin Saghebi

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

2019-06-13 16:40:10
Reply

brettwatty

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

2019-03-29 02:35:09
Reply

brettwatty

@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/

2019-03-29 02:34:52
Reply

brettwatty

@cookiecookie12 it is just two different mounting options

2019-03-29 02:33:10
Reply

cookiecookie12

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

2019-01-01 20:10:53
Reply

brettwatty

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

2018-12-01 06:47:08
Reply

brettwatty

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

2018-12-01 06:46:11
Reply

Magnus3eriksson

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

2018-11-25 14:31:57
Reply

Marcin Gębuś

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)?

2018-11-21 12:58:17
Reply

Charles Bynaker

Missing board outline layer in gerber file

2018-08-28 09:59:50
Reply

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