esp-wroom-02 Pocket 8266 D1 mini WIFI Module --ESP8266+18650 Battery
Esp-wroom-02 Pocket 8266 D1 mini WIFI Module ESP8266+18650 Battery Features: Compatible with nodemcu. 18650 charging system integration. LED indicator (green for full, red for charging) can be used while charging. Switch control power supply. SMT connector available for sleep mode Additional LED Programmable (gpio16) 0.5a charge current 1A output Overcharge protection Over discharge protection 10 digital pin read / write / interrupt / PWM / I2C / line support (except D0) The analog input should be careful "+ -". Packaged without battery. ,please note: If the positive and negative direction of the battery is placed incorrectly, the charging chip will be damaged.