timeBuzzer LED

Control the timeBuzzer hardware LED over MIDI. The device has 3 RGB segments controllable independently or together.

Requirements

• timeBuzzer device connected via USB-C
• python-rtmidi installed (pip install python-rtmidi)
• timeBuzzer app may be running (MIDI port is shared)

Script

Single CLI: scripts/buzzer_led.py

Color commands

python3 ~/.claude/skills/timebuzzer-led/scripts/buzzer_led.py color red
python3 ~/.claude/skills/timebuzzer-led/scripts/buzzer_led.py color --hex "#FF8800"
python3 ~/.claude/skills/timebuzzer-led/scripts/buzzer_led.py rgb 255 100 0
python3 ~/.claude/skills/timebuzzer-led/scripts/buzzer_led.py off

Named colors: red, orange, yellow, green, cyan, blue, purple, magenta, pink, white, warm, off.

Effects

python3 ~/.claude/skills/timebuzzer-led/scripts/buzzer_led.py pulse blue --bpm 30 --seconds 5
python3 ~/.claude/skills/timebuzzer-led/scripts/buzzer_led.py strobe red --count 5 --interval 0.15
python3 ~/.claude/skills/timebuzzer-led/scripts/buzzer_led.py rainbow --seconds 5
python3 ~/.claude/skills/timebuzzer-led/scripts/buzzer_led.py fade warm --seconds 2

Status signals (parallel to hue skill)

python3 ~/.claude/skills/timebuzzer-led/scripts/buzzer_led.py signal success
python3 ~/.claude/skills/timebuzzer-led/scripts/buzzer_led.py signal thinking --seconds 5

signal	color	effect
success/done	green	solid
error	red	strobe
warning	orange	pulse
thinking	blue	pulse
working	cyan	pulse
idle	warm	solid
attention	magenta	strobe
focus	purple	solid

Per-segment control

python3 ~/.claude/skills/timebuzzer-led/scripts/buzzer_led.py segment 0 255 0 0   # seg 0 red
python3 ~/.claude/skills/timebuzzer-led/scripts/buzzer_led.py segment 1 0 255 0   # seg 1 green
python3 ~/.claude/skills/timebuzzer-led/scripts/buzzer_led.py segment 2 0 0 255   # seg 2 blue

Protocol details

• USB MIDI device (vendor 0x16D0, product 0x1170)
• Sends/receives MIDI CC on channel 12 (status byte 187/0xBB)
• LED output: CC 70-78 for 3 segments x 3 channels (R, G, B)
• Values: 0-127 (half of standard 0-255 RGB)
• The timeBuzzer app controls LED based on active project color; this script overrides it directly

Syncing with Hue

Use the same signal vocabulary as the hue skill. Example combined command:

python3 ~/.claude/skills/timebuzzer-led/scripts/buzzer_led.py signal success &
python3 ~/.claude/skills/hue/scripts/hue.py signal success --group 1