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>
51 lines
1.2 KiB
Python
51 lines
1.2 KiB
Python
import sys
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import time
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from ltp305 import LTP305
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print("""clock.py - clock segment example.
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Usage: python3 clock.py <hour/minute/second> <i2c-address>
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This simple clock example will display the hour, minute or second on a single matrix display breakout.
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Press Ctrl+C to exit.
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""")
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fmt = "%M"
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address = 0x61
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available = {
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"hour": "%H",
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"minute": "%M",
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"second": "%S"
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}
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if len(sys.argv) > 1:
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try:
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fmt = available[sys.argv[1]]
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except KeyError:
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raise ValueError("{} is not supported!".format(sys.argv[1]))
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if len(sys.argv) > 2:
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address = int(sys.argv[2], 16)
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if address not in [0x61, 0x62, 0x63]:
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raise ValueError("Invalid i2c address: 0x{:02x}. Run `i2c-detect -y 1` to discover breakouts.".format(address))
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try:
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display = LTP305(address=address)
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display.clear()
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display.show()
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except OSError:
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raise OSError("Unable to find LTP305 on i2c address: 0x{:02x}. Run `i2c-detect -y 1` to discover breakouts".format(address))
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while True:
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minute = time.strftime(fmt)
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left, right = minute
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display.set_character(0, left)
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display.set_character(5, right)
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display.show()
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time.sleep(1.0 / 60)
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