The ice cream cart that became sentient. Using GPIO controls for raspberrypi.
Inspired from this GPIO how to writeup: https://sites.google.com/site/semilleroadt/raspberry-pi-tutorials/gpio
Board: https://i.pinimg.com/originals/95/30/46/953046f96aeb9ab53eb91abff2b24bc8.jpg
green -> 5v blue -> 25/dir1 purple -> 24/pwm1 grey -> 23/dir2 white -> 22/pwm2 black -> ground