A clock using the Pimoroni Blinkt! 8-pixel LED strip for Raspberry Pi Zero W.
The clock uses all 8 pixels, indicates AM/PM, and is accurate to 10-minute increments. The first and last pixels are special function bits, while the inner 6 pixels keep the time.
Indicates if the hour pixel is "lo" (1-6 inclusive) or "hi" (7-12 inclusive).
Indicates the hour (in blue) and the nearest 10-minute fraction of the hour (in red). If the hour and minute pixels overlap, they form a purple pixel.
For example,
3:11 = ... [R] [_] [B] [_] [_] [_] ...
6:47 = ... [_] [_] [_] [_] [R] [B] ...
2:01 = ... [_] [B] [_] [_] [_] [_] ...
Because the clock relies on reading each pixel in relation to the entire strip, any unused time-keeper pixels are a very dim white at all times.
Indicates AM or PM.
Updates every 3 minutes. The resolution of the clock is low enough that this does not need to be run every minute.
crontab -e
*/3 * * * * python blinkt_clock.py
