Micro USB Data Cable

NodeMCU ESP8266 is an open-source Lua based firmware and development board specially targeted for IoT based applications. It includes firmware that runs on the ESP8266 Wi-Fi SoC from Espressif Systems and hardware which is based on the ESP-12E module, and like this, it can also be programmed using Arduino IDE and can act as both WiFi Hotspot or can connect to one.