Smart Wrist Bracelet

Inspiration: Wearable electronics is a huge industry that is still growing, and we wanted to design a very form-factor wearable device that could tell the time and perform some basic functions.

Goal: To design and create a form-factor wearable device that turns on, tells the date and time, and has a heart rate and SpO2 sensor for some basic health functions.

Description: The board is powered by a coin cell battery and uses different voltage regulators for different sensors and functions in the circuit. It has an OLED display, and the whole thing is controlled by an ATTiny 85 because an ESP-32 is almost the same size as our entire project.