STEM DIY 4WD MECANUM ROBOT CAR WITH BOARD (WITH MICROBIT)

This product is a smart car based on Micro:bit. It integrates a host of functions such as servo, ultrasonic following, line tracking, infrared control as well as Bluetooth control. There is a passive buzzer to play music, 4 WS2812RGB LEDs to display different colors, 2 seven-color lights to make direction lights for the car. This product uses two 18650 lithium batteries for power supply.