3Pcs LILYGO D1 Esp-Wroom-02 Motherboard ESP8266 Mini WiFi Nodemcu Module 18650 Charging Battery Development Board

Description The development board integrates the ESP8266 18650 battery A standard 3000mah 18650 battery can run for 17 hours 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 1 SMT connector available for sleep mode 1 additional LED programmable with gpio16 do 0 5a 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 Note 1 If the battery is in the wrong direction the charging chip will be destroyed 2 This product does not contain 18650 battery Package Included 3 x WeMos D1 Esp Wroom 02 Motherboard Mini WiFi Nodemcu Module