3pcs ESP8266 NodeMCU LUA CP2102 ESP-12E WiFi Internet Development Board Serial Wireless Module for Arduino IDE/Micropython New VersionInstruction andamp; Steps of How to use:1. Download the Arduino IDE, the latest version.2. Install the IDE3. Set up your Arduino IDE as: Go to File-andgt;Preferences and copy the URL below to get the ESP board manager extensions: http://arduino.esp8266.com/stable/package_esp8266com_index.json Placing the http:// before the URL lets the Arduino IDE use it...otherwise it gives you a protocol error.4. Go to Tools andgt; Board andgt; Board Managerandgt; Type "esp8266" and download the Community esp8266 and install.5. Set up your chip as:Tools -andgt; Board -andgt; NodeMCU 1.0 (ESP-12E Module)Tools -andgt; Flash Size -andgt; 4M (3M SPIFFS)Tools -andgt; CPU Frequency -andgt; 80 MhzTools -andgt; Upload Speed -andgt; 921600Tools--andgt;Port--andgt; (whatever it is)6. Download and run the 32 bit flasher exe at Github(Search for nodemcu/nodemcu-flasher/tree/master/ at Github) github.com/nodemcu/nodemcu-flasher/tree/master/Win32/Release Or download and run the 64 bit flasher exe at: github.com/nodemcu/nodemcu-flasher/tree/master/Win64/Release7. In Arduino IDE, look for the old fashioned Blink program. Load, compile and upload.8. Go to FILEandgt; EXAMPLESandgt; ESP8266andgt; BLINK, it will start blinking.Note: Please contact us if you need the driver or meet any issue when using. We provide 100% satisfication service for customers.Package Including:3 * ESP8266 NodeMCU LUA CP2102 ESP-12E Development Board1 * “nRF24L01+” and ESP8266 ESP-01 Breadboard Breakout Adapter Board(for free)