I have another project that's a more heavyweight robot, so I decided to build a lightweight one to experiment with some things.

I took a cheap 2WD chassis I found online, superglued some HC-SR04's I had lying around onto it, and somehow got a controller and motor controller hooked up. I wanted to use some of my Adafruit feathers, but my boards seem to be misbehaving so I just grabbed the Turbo I had lying around to use.

All of my boards have this weird thing where they only take power via USB or a LiPo battery pack JST connector, so I guess now my robot has two sets of batteries: one connected to the controller, the other supplying 5V to everything else.

It sort of works. More on that later.