WEMOS ESP-WROOM-02 main board, D1 Mini WiFi Module, ESP8266 +18650 Battery Cover

You can call it “WiFi battery”. I am going to make it easier to develop ESP8266 ESP8266 project to add 18650 battery.When you do some ESP8266 items you must be hated to add power to power. This miniature board can solve this problem. LG 3000mah 18650 battery can make ESP8266 run for 17 hours or more.

Features

• With nodemcu.
• 18650 charging system integration.
• Indication LED (green means full of red means · Charging) Charge and work can be done at the same time.
• 1 switch control power supply.

Specifications

• 0.5 A charge current
• 1A output
• Overcharge protection
• Over discharge protection
• 10 digital pin read / write / interrupt / PWM / I2C / line support (except D0)
• 1 analog input to be careful + -.
• If the battery is in the wrong direction, the charging chip will be destroyed.

Package Include 

• 1x WEMOS ESP-WROOM-02 main board, D1 Mini WiFi Module, ESP8266 +18650 Battery Cover