https://ecksteinimg.de/Datasheet/Keyestudio/KS4031/KS4031.pdf https://fs.keyestudio.com/KS4031-4032 https://wiki.keyestudio.com/KS4031(4032)Keyestudio_4WD_Mecanum_Robot_Car_for_Micro:bit https://wiki.keyestudio.com/KS0528_Keyestudio_4WD_Mecanum_Robot_Car_PCB_Driver_Board https://wiki.keyestudio.com/KS4030_Keyestudio_Microbit_Expansion_Board
https://cdn-shop.adafruit.com/datasheets/PCA9685.pdf https://www.sparkfun.com/datasheets/Robotics/TB6612FNG.pdf