Here is another micro:bit powered humanoid robot that can teach you about coding and technology concepts. PLEN:bit has sensors and LEDs that can be easily programmed. It stands 13cm tall and has 8 movable joints, two sensors, and green LED eyes. The body parts can be 3D printed.
The PLEN:bit has both a distance sensor and sound sensor. Its embedded accelerometer and compass enables it to determine when it is on a tilted surface.