LED Watch

Personal hobby project.

Battery powered LED watch using an ATMEL SAMD21E and 60 individual white LEDs to display the time and various animations

Github for the firmware source code.

Features:

• 60 LEDs in 5x12 MUX with PWM

• Accelerometer for wake and setting time

• RTC for keeping time accurately and when in sleep mode

• Photodiode for controlling brightness at various light levels

• Low power state (<10uA) for 2 years of sleep on a single CR3032