ESP32 LED Eyes Help Keep Toddler In Bed

These 3D printed eye clock is illuminated with either yellow or green LEDs depending on whether or not it’s time to get out of bed.

More than just the color of the light, the eye design switches between wide-open and tightly shut depending on the time of day.

Internally the device is very simple, with the 5 mm LEDs and their associated resistors connected directly to the digital out pins on an ESP32 development board.