2. Blynk

2.1. Blynk Arduino library

1. Download the Blynk library (.zip) from the github repository

https://github.com/blynkkk/blynk-library/releases

2. Extract the contents of the file

3. Open Arduino IDE and navigate to File > Preferences

4. Locate the sketchbook location

5. Copy (and paste) the contents of the extracted folder to the sketchbook folder