AA x 3 Battery Holder Case with Wires

5mm LED Red light emitting diode, 5 LEDs per pack

Working current: 20 (mA)

Working voltage: 1.9V-2.4V

ESP32s Micro-controller

ON/OFF button type switch 

Double Battery Box for 18650 batteries

High Quality 1.5Amp/Hr 18650 lithium-ion cell. Capacity is tested to be within specifications. Excelent choice for toys and DIY

XD-05 Data Logger Module

Dupont Cable 200mm Male to Female, 40 Way

W420 steel ball universal wheel for smart car