| name | timebuzzer-led |
| description | Control timeBuzzer hardware LED via MIDI — set color, effects (pulse, strobe, rainbow, fade), and semantic status signals. Use when the user asks to change the buzzer LED color, signal status through the buzzer, or sync the buzzer with other lighting. |
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
python3 ~/.claude/skills/timebuzzer-led/scripts/buzzer_led.py segment 1 0 255 0
python3 ~/.claude/skills/timebuzzer-led/scripts/buzzer_led.py segment 2 0 0 255
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
