Nezha (microbit) & Ecode app - Ultrasonic distance and Servo motor Vehicle
The vehicle on this video depends on three wheels: one at the front which is the driver wheel and two at the rear. The driver wheel is attached to a 180° direction servo motor so it is also a steering wheel. An Ultrasonic static sensor measures the distance of the first obstacle at the front. There is also a green LED light attached to the side of the vehicle. All of those devices (actuators or sensors) are directly accessible via the Ecode programming application (seen at the video), which is a Scratch 3.0 derivative app of its own. So, this video shows a simple way to control the Nezha vehicle.
Enjoy and be inspired!