Circadian Lamp

Circadian Lamp is a ritual object for winding down, made in response to screen-heavy days that have thrown off natural sleep rhythms. From 6 AM to 8 PM, it glows gentle blue. Two hours before bedtime, from 8 PM to 10 PM, it slowly shifts from yellow to red, then turns off to signal that it’s time to rest, since red light doesn’t suppress melatonin the way blue light does. A single clap turns it back on.

Inside, an Arduino Nano runs a DS3231 real-time clock module, a sound sensor for clap detection, and a NeoPixel LED strip, all housed in a 3D-printed base wrapped in heat-resistant Kapton tape as a barrier between the electronics and the PLA. The translucent shade has a twisted, organic form, somewhere between a mushroom and a bell, modeled in Blender and printed with the spiral vase setting in PrusaSlicer.