Files
drunkendotfiles/vendor/breakout-garden/examples/uv-warning
dissimulo 030172f523 Initial backup of LTP-305G matrix clock setup on matrixpi
Captures everything needed to redeploy the two-display clock (hour on I2C
0x61, minute on I2C 0x63) on a fresh Pi:

- Both systemd units (matrix0x61.service, matrix0x63.service)
- Deployed Pimoroni script tree, including the local %I (12-hour) clock
  customization
- Vendored upstream sources (ltp305-python, breakout-garden) so restore is
  fully offline-capable
- Boot config snippet enabling I2C
- install.sh that wires it all back up idempotently
- Inventory doc cross-referencing every live-system path

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-06 01:32:39 -07:00
..

UV warning example

This example uses a VEML6075 UVA/B sensor, a 5x5 RGB matrix, and a 1.2" OLED breakout to display average UV index as a traffic light warning on the RGB matrix, with green being a low UV index, yellow/orange being moderate, and red high or extreme. The numerical values and a descriptive warning are displayed on the OLED.

Pre-requisites

This example requires:

Installation

Pop the breakouts into your Breakout Garden, and then run the install.sh script in the root of this repository with sudo ./install.sh to automagically install the libraries to run the I2C breakouts.

For this example you'll need to make sure some additional software is installed:

sudo apt install python3-pil

You'll need to clone and install the library for the 1.12" OLED Breakout (SPI) as follows:

git clone https://github.com/pimoroni/sh1106-python
sudo ./install.sh

This example assumes that you have the OLED plugged into the front slot on the Breakout Garden HAT, which should also work with the Breakout Garden Mini HAT. To change it to the back slot, change device=1 to device=0 on the line where the OLED is set up.

Running this example

To run this example, type ./uv-warning.py in the terminal

Notes

You might want rotate your Pi and Breakout Garden so that the UV sensor is facing upwards at a better angle to detect UV light.