This is an ongoing project to design and build a little robot toy from scratch. I started by building a chassis out of lego and attaching two Pololu micro-motors with hall-effect encoders. I tested the chassis by assembling a hand built motor control board using Blynk over wifi to manually control it.
I'm currently teaching myself PCB design using Eagle CAD and working my way through a properly designed power board. The PCBs you see here are evaluations of various switching power supplies and charge management ICs.