Polly Counter - A Knitting Counter

This project is a bit of a work in progress, if you decide to make this, expect some tinkering and debugging.

This is a digital counter, originally made to count rows while knitting, but you can count whatever you want. The box was inspired by Polly Pockets and it has two buttons and a rotary encoder. One button is meant to increment, one to decrement and the rotary encoder to set the target and reset the count, but you can write code to make it do whatever you want!

This requires the following parts:

• Raspberry Pi Pico

• 1.8'' TFT LCD display (link, not the exact one I used)

• PCB prototype board, matches the bottom standoffs on the case, but not strictly necessary (link)

• AA Battery springs (link)

• 3 AA batteries

• 3 standard mechanical keyboard switches

• 1 rotary encoder. I used a breakout board one which included resistors. (link)

• 1 switch, not strictly necessary (link)

• 2 barrel hinges, 8 mm (link)

• M3 countersunk bolts and M3 nuts (link)

• M2 self tapping screws, for attaching the PCB and switch (link)

• 8 magnets, 6x2 mm (link)

You can find the code for this project here

I also included STEP files in case you want to modify this to suit your needs.