The Raspberry Pi is a wonderful platform for building robots and all kinds of electronics. The Raspblock lets you build an omnidirectional robot with a Pi 4B. It has a 3DOF camera for object recognition, color detection, and autonomous operation. You can interact with the robot via your smartphone.
The Raspblock comes with 4 mecanum wheels to move in all directions. It can be programmed through a web browser and can recognize gestures. It can also help you improve your Python programming skills.