reuschi / neopixel-led-clock

SUMMARY

This code is for building up a clock made of a NeoPixel Ring of a various amouont of LEDs. In my Example here I built it with 60 LEDs, but can also fit to a ring with 32, 24, 16 or 12 LEDs as well.

Programming language / Software requirements

The clock is written in Python 3.7. Necessary installed Python modules are:

• Board
• Neopixel
• RPi.GPIO

The RasPi can have both Raspian OS Lite or Full installed. The script should only be installed as a startup script (in rc.local) to let the clock run when the system boots up.

Hardware requirements

The clock was built up with a RaspberryPi Zero W. But it can also be built up with differente Raspberry Pi's. To gather the correct time, it's neccessary to have either an internet connection or have a hardware clock connected to the RasPi.
Beneath the RasPi you will need a ring of NeoPixel LEDs. The amount of LEDs is adjustable within the definition of stativ variables. So it's compatible with many different amount of LEDs on a ring. The +/- of the LED ring is soldered to +5V0/Ground of the RasPi. Data line is soldered to GPIO18 of the RassPi.
Additionally two buttons are connected to change the clockmode (GPIO23 / Pin16) and to shutdown the whole system (GPIO20 / Pin38).
The cabeling has to be the following:

All hardware is mounted in a 23x23cm picture frame IKEA with a spy-mirror glass, but can also be mounted where ever you want to.