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>
100 lines
3.1 KiB
Python
Executable File
100 lines
3.1 KiB
Python
Executable File
#!/usr/bin/env python3
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import os
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import sys
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import time
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import veml6075
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import smbus
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import colorsys
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from PIL import Image
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from PIL import ImageFont
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from PIL import ImageDraw
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from luma.core.interface.serial import spi
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from luma.core.render import canvas
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from luma.oled.device import sh1106
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from rgbmatrix5x5 import RGBMatrix5x5
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print("""
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This Pimoroni Breakout Garden example requires a VEML6075 UV
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Breakout, a 5x5 RGB Matrix Breakout, and a 1.12" OLED Breakout (SPI).
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The UV-O-Meter 3000 displays UV levels visually and in text.
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Press Ctrl+C a couple times to exit.
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""")
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# Map UV index to a descriptive level
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def uv_to_description(avg_uv_index):
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if avg_uv_index < 3:
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return "LOW"
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elif 3 <= avg_uv_index < 6:
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return "MEDIUM"
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elif 6 <= avg_uv_index < 8:
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return "HIGH"
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elif 8 <= avg_uv_index < 11:
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return "V. HIGH"
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elif avg_uv_index > 11:
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return "EXTREME"
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else:
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return ""
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bus = smbus.SMBus(1)
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# Set up UV sensor
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uv_sensor = veml6075.VEML6075(i2c_dev=bus)
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uv_sensor.set_shutdown(False)
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uv_sensor.set_high_dynamic_range(False)
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uv_sensor.set_integration_time('100ms')
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# Set up RGB matrix
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rgbmatrix5x5 = RGBMatrix5x5()
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rgbmatrix5x5.set_clear_on_exit()
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rgbmatrix5x5.set_brightness(1.0)
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# Set up OLED
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oled = sh1106(spi(port=0, device=1, gpio_DC=9), rotate=2, height=128, width=128)
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# Load fonts
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rr_path = os.path.abspath(os.path.join(os.path.dirname(__file__), 'fonts', 'Roboto-Regular.ttf'))
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rb_path = os.path.abspath(os.path.join(os.path.dirname(__file__), 'fonts', 'Roboto-Black.ttf'))
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rb_15 = ImageFont.truetype(rb_path, 15)
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rr_15 = ImageFont.truetype(rr_path, 15)
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while True:
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try:
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img = Image.open("images/uv-warning.png").convert(oled.mode)
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draw = ImageDraw.Draw(img)
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draw.rectangle([(0, 0), (128, 128)], fill="black")
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# Get UV data and calculate indices
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uva, uvb = uv_sensor.get_measurements()
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uv_comp1, uv_comp2 = uv_sensor.get_comparitor_readings()
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uv_indices = uv_sensor.convert_to_index(uva, uvb, uv_comp1, uv_comp2)
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uva_index, uvb_index, avg_uv_index = uv_indices
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# Draw UV data to OLED
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draw.text((0, 0), "UV-O-Meter 3000", fill="white", font=rb_15)
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draw.text((0, 30), "UVA index: {:05.02f}".format(uva_index), fill="white", font=rr_15)
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draw.text((0, 48), "UVB index: {:05.02f}".format(uvb_index), fill="white", font=rr_15)
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draw.text((0, 66), "Avg. index: {:05.02f}".format(avg_uv_index), fill="white", font=rr_15)
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draw.text((0, 100), "Level: {}".format(uv_to_description(avg_uv_index)), fill="white", font=rb_15)
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# Map avg. UV index to colour, from green to red
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hue = (10.001 - min(10, avg_uv_index)) / 30
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sat = 1.0
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val = 1.0
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r, g, b = [int(255 * c) for c in colorsys.hsv_to_rgb(hue, sat, val)]
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# Light RGB matrix with calculated colour
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rgbmatrix5x5.set_all(r, g, b)
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rgbmatrix5x5.show()
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oled.display(img)
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# Also print current UV index
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print ('Avg. UV index: {}'.format(avg_uv_index))
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except KeyboardInterrupt:
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sys.exit(0)
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