ITEM NAME:WeMos D1 WiFi Arduino Development Board Based on ESP8266 nME Description: Based on ESP-8266EX Arduino compatible, using Arduino IDE to program 11 x I / O pin 1 x ADC pin (input range 0-3.3V) Support OTA wireless upload On-board 5V 1A switching power supply (maximum input voltage 24V) After installing the hardware package, it is developed directly with the Arduino IDE and operates exactly like the Arduino UNO WiFi Arduino board Package Included: 1x WeMos D1 WiFi Arduino UNO Development Board.Arduino compatible, using Arduino IDE to program. Based on ESP-8266EX.