Improved design for my homemade hot button pad for the monoprice 19" interactive pen display. It uses the screw holes that are already present on the monitor, it can also sit horizontally on the top. It uses an arduino Teensy 2.0 to interface with the pc. I have included the stl and blender fileI printed this face down with PLA. I used two 1x4 keypads from adafruit. I used a teensy 2.0 arduino compatible to interface the keypads to the PC. It has plenty of inputs for this project and can be programmed to act like a keyboard easily. I used a dab of hot glue to secure it in the cubby hole. Here's my code for the board :