030172f523
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>
50 lines
1.8 KiB
Markdown
50 lines
1.8 KiB
Markdown
# UV warning example
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This example uses a VEML6075 UVA/B sensor, a 5x5 RGB matrix, and a 1.2" OLED breakout
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to display average UV index as a traffic light warning on the RGB matrix, with green
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being a low UV index, yellow/orange being moderate, and red high or extreme. The numerical
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values and a descriptive warning are displayed on the OLED.
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## Pre-requisites
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This example requires:
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- A Pimoroni [Breakout Garden](https://shop.pimoroni.com/products/breakout-garden-hat-i2c-spi)
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- A Pimoroni [VEML6075 UVA/B Sensor Breakout Breakout](https://shop.pimoroni.com/products/veml6075-uva-b-sensor-breakout)
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- A Pimoroni [5x5 RGB Matrix Breakout](https://shop.pimoroni.com/products/5x5-rgb-matrix-breakout)
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- A Pimoroni [1.12" OLED Breakout (SPI)](https://shop.pimoroni.com/products/1-12-oled-breakout)
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## Installation
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Pop the breakouts into your Breakout Garden, and then run the `install.sh`
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script in the root of this repository with `sudo ./install.sh` to automagically
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install the libraries to run the I2C breakouts.
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For this example you'll need to make sure some additional software is installed:
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```
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sudo apt install python3-pil
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```
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You'll need to clone and install the library for the 1.12" OLED Breakout (SPI)
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as follows:
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```
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git clone https://github.com/pimoroni/sh1106-python
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sudo ./install.sh
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```
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This example assumes that you have the OLED plugged into the front slot on the
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Breakout Garden HAT, which should also work with the Breakout Garden Mini HAT.
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To change it to the back slot, change `device=1` to `device=0` on the line
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where the OLED is set up.
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## Running this example
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To run this example, type `./uv-warning.py` in the terminal
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## Notes
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You might want rotate your Pi and Breakout Garden so that the UV sensor is facing
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upwards at a better angle to detect UV light.
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