1 x Arduino NANO/UNO LINK eBay
1 x i2c OLED: LINK eBay
1 x Shunt 0.01: LINK eBay
1 x LM324: LINK eBay
1 x battery charger: LINK eBay
1 x sliding switch: LINK eBay
1 x 4.7 LIPO: LINK eBay
1 x PCB connectors: LINK eBay
Resistors: LINK eBay
Wires LINK eBay
Female PCB pins LINK eBay
Male PCB pins LINK eBay
Drilled PCB LINK eBay
Wire, soldering iron, solder, etc...