An ESP32 (D1) with integrated 18650 battery backup (battery not included), the system will run and the battery will charge when connected to USB. This is ideal for systems where the module must keep on running during power failures.
- Indication LED (green means full of red means · Charging)
- 1 SMT connector available for sleep mode
- 1 additional LED programmable (with gpio16)
- 0.5a charge current
- Overcharge protection
- Over discharge protection
- 10 digital pin read / write / interrupt / PWM / I2C / line support (except D0)
Take note if battery is inserted wrong way around the module will be destroyed.