WEMOS D1 ESP WROOM 02 MOTHERBOARD ESP8266 MINI WIFI NODEMCU MODULE WITH 18650 BATTERY HOLDER

Sepcifications

One AD inputs.

Micro USB inputs.

One programmable LED (D0).

AUTO PROGRAM circuit.

ESP8266 (ESP-WROOM-02 With TELEC) is equivalent to the NodeMCU.

Analog Input (AD): Built-in dividing resistor (AD = 220K – ADC – 100K = GND).

There is a SOLDER terminal for SLEEP MODE.

Compatible With Arduino and NodeMCU.

Operation and charging are possible at the same time.

18650 charging circuit including the 5V boosting circuit with TP5410.

Overcharge protection, over-discharge protection built in.

LED: Red = Charging, Green = Full charging.

3000 mA 18650 It is possible to operate for more than 17 hours on a battery.

Integrated 18650 battery charging and discharging system.

One switch controls whether the 18650 battery is powered or not.

OLED’s SDA and SCL connected to the D1 pin and the D2 pin respectively.

The five buttons are controlled by FLATH, RSET, D5, D6, and D7 respectively.

The 5 Digital pins can configure the write/read/interrupt/PWM/I2C/one-wire supported separately.