ESP-wroom-02 motherboard D1 mini WiFi module ESP8266+18650 battery pack

Product  Descriptions

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

It can be called a 'WiFi battery'. I want to make it easier to develop ESP8266 and add 18650 batteries to the ESP8266 project.

When you do some ESP8266 projects, you must hate adding power sources to provide power. This mini board can solve such problems. The 3000mAh 18650 battery can run the ESP8266 for 17 hours or more.

What makes it special?

·Compatible with NodeMCU.

·18650 charging system integration.

·The indicator LED (green indicates full charge, red indicates charging) can be used while charging.

·Switch controls the power supply.

·SMT connector can be used for sleep mode · 1 additional LED programmable (gpio16)

·0.5a charging current

·1A output

·Overcharge protection

·Over discharge protection

·Read/write/interrupt/PWM/I2C/line support for 10 digital pins (except D0)

·Be careful with analog inputs.

If the battery direction is incorrect, the charging chip will be damaged

Product  Photos