Open Authenticator
author: vedantparanjape
2 layer board of 3.23 x 1.65 inches (82.0 x 42.0 mm)
Uploaded:
June 23, 2021
Shared:
June 23, 2021
Total Price:
$26.65
Features
- Small form factor of 82mm x 42mm
- Uses ESP32-WROOM-32D module
- Uses 128x64 0.96" inch OLED module
- Uses DS3231 RTC with battery backup (CR2032) for timekeeping
- Powered by 3.7V 300 mAh LiPo battery
- Uses MCP73831 for charging LiPo battery
- Uses TPS63001 Buck Boost Converter IC for efficient 3.3V power supply, with input range from 1.8V - 5.5V
- Uses TPS22919 Load switch to control power to OLED and RTC chip
- Autoselect power source, i.e., battery or USB
- USB Type-C for charging only (no data pins connected)
Github Link: https://github.com/Open-Authenticator/hardware-design
Features
- Small form factor of 82mm x 42mm
- Uses ESP32-WROOM-32D module
- Uses 128x64 0.96" inch OLED module
- Uses DS3231 RTC with battery backup (CR2032) for timekeeping
- Powered by 3.7V 300 mAh LiPo battery
- Uses MCP73831 for charging LiPo battery
- Uses TPS63001 Buck Boost Converter IC for efficient 3.3V power supply, with input range from 1.8V - 5.5V
- Uses TPS22919 Load switch to control power to OLED and RTC chip
- Autoselect power source, i.e., battery or USB
- USB Type-C for charging only (no data pins connected)
Github Link: https://github.com/Open-Authenticator/hardware-design
