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>
29 lines
1.1 KiB
Markdown
29 lines
1.1 KiB
Markdown
# Rainbow compass example
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Calculates and displays compass heading as an
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RGB colour around the hue wheel, with North being red, South cyan,
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East green, and West purple, approximately.
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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 [LSM303D Motion Sensor Breakout](https://shop.pimoroni.com/products/lsm303d-6dof-motion-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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## 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 all of the required libraries.
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## Running this example
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To run this example, type `./rainbow-compass.py` in the terminal, and then
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walk through the calibration steps.
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Depending on the orientation of you LSM303D breakout, you can change the
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line that says `Y = 2` in the `raw_heading` function to e.g. `Y = 1` if
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you have the breakout flat rather than vertical.
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