Using blynk app how to control the devices.
Hardware Requirements : 1. Node MCU 2. LED’s 3. Jumper wires 4. USB Cable 5. Smart Phone
Software Requirements : arduino IDE with ESP8266 Libraries and Blynk Libraries
Step 1 : Download the arduino IDE and Install
Step 2 : Under File --> Preferences – > Additional Board Manager URLs : Please add the URL
http://arduino.esp8266.com/stable/package_esp8266com_index.json
click on OK
Step 3 : Please select the board Node MCU board under Tools --> Boards --> Node MCU 1.0
Step 4 : Now Download the Blynk Libraries from https://github.com/blynkkk/blynk-library/releases
After Download – > Unzip the Folder -->you will find 2 folders Libraries and tools
Step 5 : Copy the Libraries from Blynk folder and paste it in Arduino folder. Now you will find Blynk under contributed libraries i.e., Arduino IDE --> Sketch --> Include Library – > contributed libraries --> Blynk