ESP Wroom 02 Wifi Development Board with 18650 Battery Slot

Wemos D1 Mini WiFi Module ESP WROOM 02 Motherboard Integrated ESP8266 and 18650 Battery Slot Compatible with NodeMCU for Internet of Things It is a development board with suitable hardware to develop solutions.

This product can be called "WiFi battery", this development board integrates ESP8266 18650 battery slot, standard 3000mAh 18650 battery It can work for 17 hours if placed inside.

18650 charging system integration. LED indicator (full green, red for charging) can be used while charging.

overcharge protection; over discharge protection. Packaged without battery. , please note: If the positive and negative direction of the battery are placed incorrectly, the charging chip will be damaged.

SMT connector is available for sleep mode; Additional LED Programmable (gpio16).

10 digital pin read / write / interrupt / PWM / I2C / line support (except D0); Analog input should be careful "+ -".