WeMos D1 Esp-Wroom-02 (ESP8266) Motherboard Mini WIFI NodeMcu Module 18650 Battery Charging NodeMcu Development Board PWM I2C

This development board integrates ESP8266 18650 battery A standard 3000mah 18650 battery can run for 17 hours.

Call it a "WiFi battery". I'm going to make it easier to develop ESP8266 ESP8266 projects by adding 18650 batteries.

When you're doing some ESP8266 projects you must hate adding a power supply to power it. This tiny board can solve such problems. A 3000mah 18650 battery can run the ESP8266 for 17 hours or more.

What makes it special?

· Compatible with nodemcu.

· 18650 charging system integration.

· Indication LED (green means full red means · charging) can be used while charging.

· Switch control power supply.

· SMT connector available for sleep mode · 1 additional LED programmable (gpio16)

· 0.5a charging current

· 1A output

· Overcharge protection

· Over discharge protection

10 digital pins read/write/interrupt/PWM/I2C/wire support (except D0)

· Be careful with analog inputs +—.

If the battery is oriented in the wrong direction, the charging chip will be destroyed.

Package included:

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