Parts List
Code
Source Code (Still in Development)
WIFI: https://github.com/brettwatty/arduino-mega-8x-charger-discharger
Offline: https://github.com/brettwatty/arduino-mega-8x-charger-discharger-offline
Retired: https://github.com/brettwatty/Arduino-8x-PCB-Smart-Charger-Discharger
PCB
I have designed the PCB in Easy EDA – You can use JLCPCB or download the Gerber files and send it off to your own PCB manufacturer.
https://easyeda.com/brettwatty/arduino-mega-8x-charger-discharger-v5
Instructable for modifying PCB boards 2.0 and below for ESP8266 WIFI: https://www.instructables.com/id/Modify-Arduino-ASCD-8x-18650-Smart-Charger-Dischar/
Required Components
| Component | Quantity | Ali Express Link | eBay Link |
|---|---|---|---|
| 18650 Battery Holder | 8 | AliExpress | eBay |
| Arduino Mega 2560 (RobotDyn) | 1 | AliExpress | eBay |
| TP4056 Module | 8 | AliExpress | eBay |
| LCD 2004 20x4 with IIC/I2C/TWI Serial | 1 | AliExpress | eBay |
| Rotary Encoder KY-040 Module | 1 | AliExpress | eBay |
| Temp Sensor DS18B20 | 9 | AliExpress | eBay |
SMD or THT Components
THT Components
| Component | Quantity | Ali Express Link | eBay Link |
|---|---|---|---|
| N Channel MOSFET IRLZ44N | 24 | AliExpress | eBay |
| 10K – 1/4W Resistor THT | 32 | AliExpress | eBay |
| 4.7K – 1/4W Resistor THT | 1 | AliExpress | eBay |
SMD Components
| Component | Quantity | Ali Express Link | eBay Link |
|---|---|---|---|
| N Channel MOSFET IRLML2502TRPBF | 24 | AliExpress | eBay |
| 10K – 1/8W Resistor SMD 0603 | 32 | AliExpress | eBay |
| 4.7K – 1/8W Resistor SMD 0603 | 1 | AliExpress | eBay |
Discharge Resistor Components
Aluminium
| Component | Quantity | Ali Express Link | eBay Link |
|---|---|---|---|
| Resistor Aluminium 3.3ohm 10W | 8 | AliExpress | eBay |
| Heatsink 150mm x 20mm x 6mm | 1 | AliExpress | eBay |
| Connector JST XH2.54 2 Pin | 8 | AliExpress | eBay |
| Screw M2.5 x 4mm Stainless | 16 | AliExpress | eBay |
| Standoff M3 x 25mm Brass F-F | 2 | AliExpress | eBay |
Ceramic
| Component | Quantity | Ali Express Link | eBay Link |
|---|---|---|---|
| Resistor Ceramic 3.3ohm 10W | 8 | AliExpress | eBay |
| Connector KF301-2P 5.08mm | 8 | AliExpress | eBay |
| Resistor Carbon Film 3.3ohm 5W | 8 | AliExpress |
Network and Barcode Scanner (WIFI)
| Component | Quantity | Ali Express Link | eBay Link |
|---|---|---|---|
| Barcode Scanner | 1 | AliExpress | eBay |
| Barcode Printer | 1 | AliExpress | |
| Barcode Labels 30mm x 20mm x700 | 1 | AliExpress | |
| ESP8266 ESP-01 | 1 | AliExpress | eBay |
| ESP8266 Arduino Adaptor | 1 | AliExpress | eBay |
Power
| Component | Quantity | Ali Express Link | eBay Link |
|---|---|---|---|
| 7.5V Power Adaptor 5.5mm x 2.1mm | 1 | AliExpress | eBay |
| Jack DC 5.5mm x 2.1mm PCB Female | 1 | AliExpress | eBay |
| 5V 10A PSU | 1 | AliExpress | eBay |
| OR | |||
| 5V 10A Power Pack | 1 | AliExpress | eBay |
Mounting
| Component | Quantity | Ali Express Link | eBay Link |
|---|---|---|---|
| Rubber Feet | 8 | AliExpress | eBay |
| Standoff M3 x 35mm Brass F-F | 8 | AliExpress | eBay |
| M3 Stainless Set 300PCS | 1 | AliExpress | eBay |
| With Headers | |||
| Standoff M3 x 18mm Brass F-F | 4 | AliExpress | eBay |
| Standoff M3 x 12mm Brass F-F | 2 | AliExpress | eBay |
Headers (Optional)
| Component | Quantity | Ali Express Link | eBay Link |
|---|---|---|---|
| Header Female 4 x 1 - LCD | 1 | AliExpress | eBay |
| Header Female 5 x 1 - Rotary Encoder | 1 | AliExpress | eBay |
| Header Female 6 x 1 - SD Card | 1 | AliExpress | eBay |
| Header Female 12 x 1 - USB Host | 2 | AliExpress | eBay |
| Header Female 3 x 2 - Arduino | 1 | AliExpress | eBay |
| Header Female 5 x 2 - Ethernet | 1 | AliExpress | eBay |
| Header Female 16 x 2 - Arduino | 1 | AliExpress | eBay |
| Header Female 21 x 2 - Arduino | 1 | AliExpress | eBay |
| Header Male 2.54 Round - TP4056 | 1 | AliExpress | eBay |
| Header Female 2.54 Round - TP4056 | 1 | AliExpress | eBay |
| Headers Male 2.54 Square - USB Host | 1 | AliExpress | eBay |
Other (Optional)
| Component | Quantity | Ali Express Link | eBay Link |