Pololu 30T Track Set - Black Category_Motor & Servo Controllers/Motor Controllers Input power and motor connections

Input power and motor connections are accessible via external screw terminals and it uses three rectangular “Molex”-style connectors for control

This metal heatsink case is specially designed for cooling down your Raspberry Pi 4

You can set one according to your requirements

check out the hookup guide for a nice chart as to the total resistance and corresponding delay for each combination

I2C register set

Pololu 30T Track Set - Black Category_Motor & Servo Controllers/Motor Controllers Input power and motor connectionsThis track set includes a pair of 30 tooth silicone tracks, two black drive sprockets measuring 35 mm (1. 4) in diameter, and two matching idler sprockets along with mounting hardware. To work properly with the track, the drive and idler sprockets should be set up approximately 85 mm (3. 35) apart. The drive sprockets are designed to work with 3mm D shafts, such as those on our micro metal gearmotors and mini plastic gearmotors. These are the same