Wi-fi module based on ESP8266. On Board 11 GPIO ports (each of which can handle PWM, I2C and 1-wire), built-in ADC and USB-UART converter. It has installed NodeMCU software which provides programming with the Lua scripting language or using the Arduino IDE.
Spesifikasi: - The module is based on ESP8266 system - Power supply pin 3.3 V: 3.3 V - Power supply VIN: from 4.5 V to 9 V - Power supply microUSB: 5 V - Working voltage: 3.3 V - Clock frequency: 800 MHz / 1600 MHz - Flash memory: 32 Mb (4 MB) - Built-in microUSB connector - Converter of USB-UART CH340 - Pins pitch: 2.54 mm