Doggo Bot started as an experiment to build a 4 legged walking robot as simply as I could. I wanted to make something easy to build and easy to program while still leaving plenty of room for expansion. The idea was to build a platform on which new ideas could be introduced. I was able to build an Android app which could control the bot via voice commands or a button press. Doggo Bot could walk, sit, stand, and give paw. I made some build instructions for others to copy.
All of the electronics can be bought from Amazon. The key is to get a LiPo battery. They can supply a lot of power in a light weight package which works great for reducing the weight of the bot. Also, metal geared servos last much longer than plastic ones.
I thought of building a PCB to house all the electronics but by using a breadboard, you can test different sensors easier. Plus, everything fit nicely on top and definitely looks cool.
The legs and body are made of cardboard which was cut on a laser cutter. The hinge pin is 3D printed PLA. The body is held together with hot glue.
I was able to work out different actions for the bot. The first was giving paw.
And after some tweaking of the code...
Look at it go!!