I’m a big fan of the Portal series, so I had to have a GLaDOS robot mounted on my pegboard. This is what I came up with:

The head is 3d-printed and hand-painted. The rest of the build is made of servos, metal brackets, a PWM servo driver, a QT PY ESP32, and a motion sensor.

This is a simple BEAM robot I built a long while back; it was based on a similar design I came across in an old book. In the book, the components were connected directly together, however I mapped the circuit out and used a copper-clad board and acid to make a proper circuit board.

The robot spins, always looking for the brightest source of light in the room. The circuit is really simple: two IR LEDs detect light. As the LEDs detect light, they act as on/off switches, reversing the flow of electricity to the motor.

This was a fun electronics project that I did a few years ago. I hacked an old Nintendo NES R.O.B Robot to be controllable from a PC via a webpage (I ended up selling the robot to someone who wanted to use it in a commercial).

I used a Teensy micro-controller soldered to the robot’s original circuit board and a bit of code to interpret serial input. Then I made a PHP file that sends serial data to the Teensy’s port and made a gui with a bit of Bootstrap. Here is the code if you’d like to try this yourself: R.O.B. Robot Controller