Micro:bit is significantly applied to STEM education for teenagers, as a small microcontroller, which features small in size, easy to carry, and powerful function. At present, innovative technology products, like robots, wearable devices and interactive electronic games can be produced by programming and code.
Keyestudio micro:bit smart car integrates obstacle avoidance, line tracking and IR and Bluetooth control functions. It contains passive buzzer, ultrasonic sensor, KEYES-2812-18R module, IR obstacle avoidance sensor and so on.

The passive buzzer makes music play, a KEYES-2812-18R module can display different effects, a photoresistor can detect light intensity.