Duinotech Mini Smart Car Robot Kit with Micro:bit-STEMA fun to build robot that uses a micro: bit microcontroller board (sold separately) that kids can code or control using their Smartphone via Bluetooth. The kit is easy to assemble and no soldering is required. The included infrared and ultrasonic modules connect with the micro: bit, which enables the robot to follow a line, avoid or follow obstacles, and more. Other features include an onboard buzzer to produce sounds, an 18 RGB LED ring for amazing