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Modular word-clock software for micropython

Word clock

  • Support the addition of new clock faces (other dimensions, language, layout,...). see src/clock_face
  • Compatible with neopixel LED strips
  • Custom designed PCB jumper to easily build the neopixel LED Matrix (See /hardware/pcb_jumper)
  • Light sensor based luminosity adjustment
  • Create your own animations. see src/rendering
  • Asynchronous implementation with asyncio

Sample wiring with Pi Pico

Word clock sample schematic with raspberry pi pico Word clock wiring with raspberry pi pico Word clock usb socket

Usage

Install Requirements

python3 -m venv .venv
source .venv/bin/activate
pip3 install -r requirements-dev.txt

Install code on rpi

Plug Raspbery Pi via USB,

mpremote cp -r src :
mpremote cp boot.py :.
mpremote cp main.py :.

Unplug and plug the clock to restart it.

Set time

First, edit the time in src/utils/set_date_time.py so that it reflects the current time (plus a couple of seconds). Then run this command to set the time on the clock.

TODO: use the computer time to automatically set the clock time

mpremote run src/utils/set_date_time.py

Dev

# run the main loop to catch any error
mpremote run main.py

Build

See /hardware for build infos and files

  • Glass front with die-cut sticker on the back
  • USB-C powered
  • Frame laser cut in 4mm MDF
  • Custom PCB board to wire the LED matrix

Font used for the clock face: wordclock-stencil-mono