Github Calendar in Hardware

This is a very basic try to bring github's calendar to hardware. Who wouldn't like to get up and look at the glorious contribution history of the path?

(not my calendar btw ☺)

introduction

Since I'm a student, manufacturing cost need to be low, why I decided to use three 10cm x 10cm pcbs and solder all components by hand. Because it is cheaper using one mutli-purpose board than two specific pcb designs, I decided to do so, not assemblying unnecessary components on these boards.

first/main pcb

All parts assembled

• WeMos D1 mini (KiCad files used from https://github.com/jerome-labidurie/d1_mini_kicad)
• 2x TPIC6B595N
• TLC5940
• some leds
• 4x Buttons
• 1x Poti

following two pcbs

• TLC5940
• some leds

Total Circuit (connected ones)

only TLC5940 and leds assembled.