There is no better way to learn robotics and electronics than building and programming your own robot. manic-3d-print has shared a guide that shows you how to build your own 3D printed 8 DOF quadruped robot. You are going to need a HuaDuino board, 3.7V 18650 battery, 8 Tower Pro SG90 9g servos, a Bluetooth module, and a few other components to pull this off.
manic-3d-print has shared the instructions for this project here.