Now you have to prepared your Raspberry Pi by equipping it with hardware and installing Raspbian OS and required software like git-core, WiringPi, and Blynk libraries. Finally, you ran the default C++ source file to connect your Raspberry Pi to the Blynk Cloud server.
Chapter 2, Building Your First Blynk Application, will present how to build your first application with Blynk. You will learn how to use the Blynk app builder to build an app to turn an LED on and off, and write C++ source code to allow your Raspberry Pi to connect, transfer, and manipulate data with Blynk Cloud.