Nodemcu ESP8266 Development Board WiFi Kitfor WiFi Module with 0_96inch OLED Display for 18650 5-12V 500mA Battery Slot Compatible with NodeMCU for ESP8266 NodeMCU

Product description Features: 1. One AD inputs. Integrated 18650 battery charge and discharge system 2. micro USB inputs. Arduino compatible?NodeMCU compatible 3. one programmable LED (D0). 4. Integrated 18650 charging and discharging system. 5. One switch controls whether the 18650 battery is running or not. 6. SDA OLED and SCL are connected to D1 pin and D2 pin respectively. 7. Five buttons controlled by FLATH, RSET, D5, D6 and D7 respectively. OLED SDA and SCL are connected to D1 and D2 respectively. 8. 5 digital contacts can set up read / read / interrupt / pwm / I2C / one-wire supported separately. 9. Operation and NodeMCU sequentially, by adding a programmable LED, you can use GPIO16 to monitor, Display 8266 status and other features. Integrated OLED and five buttons are more convenient for development. 10. The design concept is based on the open source project NodeMCU, And the Development protection. At the same time, OLED and five directional buttons are integrated to promote development. Notes: 1. Manual measurement, please allow 1 ~ 5mm error, thanks. 2. This product does not contain 18650 batteries. If the battery is in the wrong direction, the charging chip will be destroyed. 3. Charging is recommended to use 5V500MA charger for charging, 5V1A above will have a fever, does not affect the normal work, but do not touch the charging chip or carry it during the charging process, the charging chip and diode will rise to about 60 degrees during the actual charging, normal work It will not heat up and be carried with confidence. 4.The development board integrates the ESP8266 186 50 battery. A standard 3000mah 186 50 battery can run for 17 hours or more.This product can be called "WiFi battery", Package Including 1 X ESP8266 Wifi Module 0.96 inches Display with 18650 battery slot