Raspberry Pi Pico Macro Handpad

Hello. My team and I have created an assistive device that executes different functions on a computer. Such as keyboard shortcuts. Why are we making this? And who are we making this for? We made this to help people who suffer from lack of fine motor skills and people who struggle to remember the shortcuts. We will walk you through on how to create this device.

TECH:

1x Basic breadboard 1x 4x4 16 button pad 5x gateron blue mechanical switches 10x jumper wires 1x Raspberry Pi Pico 1x Computer/Laptop with windows 11 1x USBA to micro USB cable SOFTWARE: Thonny python Tinkercad (for 3d modeling)

Download Thonny. Download and drag the UF2 file to the root directory of the Pi Pico. Go to the latest release and download the file with “mpy” in it. Extract the ZIP and copy the adafruit_hid file to the lib file in the Pico. Copy and paste the following code into Thonny. Save the code from the google Document below:

https://circuitpython.org/board/raspberry_pi_pico/...

https://github.com/adafruit/Adafruit_CircuitPython...

https://docs.google.com/document/d/1WMVLaq-6Z6Z3__...

Start by soldering all the top left pins of each switch to one wire. This wire will be soldered in to pin 33. Then solder all the remaining pins to their own wire which will eventually be plugged in to the breadboard or soldered directly on to the Raspberry Pi Pico.

You can model a box to contain all the wiring and the computers. However in my case, I have used some cardboard box and modified it to my needs. Use tape and make sure the material you are using is safe to be used with exposed wiring really close to it.

So now you have all the parts. Put the computer on the inside of the box and then find somewhere to tape or screw down the switchplate with all the switches.