wearable light timer

this is a time-based wearable that visualizes the passage of time without relying on clocks, numbers, or screens. Using a ring or band of NeoPixels, the device represents time as a gradual accumulation of light, allowing users to feel and see time passing rather than track it precisely. Designed for activities like Pomodoro sessions, break reminders, or mindful time awareness, the wearable encourages a more intuitive relationship with time. A single button controls starting, pausing, and resetting the timer, keeping the interaction simple and distraction-free.

input conditions

short button press:
- starts the timer if inactive
- pauses the timer if running
- resumes the timer if paused

long button press (3 seconds):
- resets the timer to the beginning

time progression is internally tracked in seconds once the timer is started

output conditions

time visualization:
- the 16 NeoPixels gradually fill with color as seconds pass
- one minute = 16 NeoPixels being illuminated

paused state:
- when paused, the lit NeoPixels remain static
- upon resume, the timer continues filling from the paused state

reset state:
- all NeoPixels turn off and the timer restarts

completion feedback:
- when one minute is completed and all NeoPixels are filled, all the lights blink twice
- after blinking, the NeoPixels turn off and the timer stops