Hardware design for ESP8266 Smartwatch
- 0.96 OLED (SSD1306)
- ESP12F (ESP8266)
- 4 Buttons Interaction
- DS3231 RTC (I2C or IIC)
- Buzzer / Vibrator Motor (PWM Mosfet Controlled)
- 500 mA 3.3v LDO (SPX3819)
- Battery Charging Circuit (TP4056 limited using 10k resistor)
- Type C Charging with LED Indicators
- Battery Potential Voltage Dividers
- Integrated Temperature Sensor (DS3231 Builtin)
- Hard Battery Cutoff slide switch
- Scorable strap loops to ease fitting into a 3D print case
- Cool Cat on Back :)
- 3D Printed shell
- 3D Printed Bands
You can find the documentation here.