Project Decennium

"Project Decennium" is the anniversary badge for the Dutch hackerspaces: a Wemos D1 mini plus an LED matrix on a KiCad PCB, with a matching 3D-printed stand. It lights the hackerspaces.nl logo on a surface you can display.

Parts and prints

• ESP8266 module, quad high-speed buffer for the LED drive, and an LED matrix showing the logo
• Everything else is support: a KiCad layout, gerbers, interactive BOM, and a printed stand

Driving the LEDs

The Wemos D1 mini runs the firmware (separate repo) and shifts out the LED pattern. The 74AHCT125 sits between the ESP8266 pins and the LEDs so the 3.3 V logic drives the display cleanly. Flash it over USB.