Among these are the Serial Servo Raspberry Pi HAT, the Serial Servo based on ESP32, the Serial Servo Pico HAT, the Serial Servo Arduino Shield, and the Serial Servo Breakout.

You'll need an Arduino, of course, and you'll also need a pair of laser pointers, a few servos and motors to make the lasers move as time passes, and of course, the IKEA BLANDA salad bowl ...

This solar tracker system uses the Arduino UNO board, a servomotor, 2 LDRs and 2 resistors to rotate the solar panel towards the Sun or a source of light.