I found yet another robot chasis out in the shed, bringing to total to 5. This is the Pirate 4WD Mobile Platform by DF Robot. It’s actually quite sturdy and well put together, but after doing some research it seems a 2WD platform will be a much easier choice to start with. Motors are a bit of a complex subject. Common motors with used with Arduinos include DC hobby motors, like the ones use above, stepper motors, and servos. Each has a different hardware interface and a different method of programming the motor.
Here is the collection so far:
Another day or two and I may run out of things to put together and be forced to write some code or actually do something a bit creative.