How do you make a walking biped robot, with only three servos? Without saying a word, Frits Lyneborg from Let’s Make Robots shows you his inventive way of doing just that! Download the programs used in the robot on the video.
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Tools needed are very basic like a saw, drill, ruler, hot glue gun, etc.
Materials are the 3 servos, some wood (4 paint sticks), hot glue, a couple of screws and some thread locking fluid. The servos are controlled by an AXE230, and batteries are used as balancing weight. You can use either 3 “normal” batteries, or 4 rechargeable; You just need somewhere between 4.5 and 5.5 volts.
You can adjust the the height of the batteries, and there are several parameters to adjust in the programming code as well, to make your robot walk well. You can also port the simple code to any other micro controller of your choice, and add sensors, arms and more to your own walking robot.