/challenges-projects/project14/offtheshelf/b/blog/posts/arduino-nano-as-raspberry-pi-io-i2c-expander-part-1---a-k-a-copter-rotor-control-via-i2c-joystickOff the shelf, and open the container. This project is 5-6 years old. It features a Raspberry Pi mounted on medium density fiberboard (MDF).The MDF provides a solid base that parts can be screwed down or hot glued, taken apart and reworked multiple ten-USTelligent Community 12