ESP8266 WeMos D1 WROOM-02 WiFi with 18650 Li-On Battery Holder

A module that allows you to use the ESP8266 system when powered from a 18650 battery. It is programmed from the Arduino environment using the micro USB socket. It is compatible with NodeMCU.

Technical Specifications:

- compatible with NodeMCU

- integrated charging system for the 18650 battery. You can simultaneously charge the battery and work with the module

- battery charge indication via LED (red - charging, green - charged)

- power switch mounted on PCB

- digital inputs D1-D8

- derived UART bus

- analog input A0

- 4M flash memory

- WiFi 802.11 b / g / n support