Package Included

- 1 x  WeMos D1 Esp-Wroom-02 ESP8266 Mini WiFi Nodemcu Module for 18650 Battery

Description:

- Chip: Genuine ESP-Wroom-02
· 18650 charging system integration.
- 0.5a charge current
- 1A output
- Indication LED
- SMT connector available for sleep mode · 1 additional LED programmable (with gpio16 [do])
- Power On/Off Switch
- Overcharge protection
- Over-discharge protection
- 10 digital pin read / write / interrupt / PWM / I2C / line support (except D0)
- 1 analog input to be careful + -

Note :
- If the battery is in the wrong direction, the charging chip will be destroyed.

Reference

• https://www.instructables.com/How-to-Use-Wemos-ESP-Wroom-02-D1-Mini-WiFi-Module-/