Before setting up the sensors, you need to know about the Raspberry Pi's GPIO pins. In the following diagram, you can see the pins and their specifications. In later sections, we will mention these names as part of the development process.
Take a look at the circuit diagram for our project, drawn using the Fritzing application, which is freely available to enthusiasts. For more information, check out http://fritzing.org/home/:
Now that we are familiar with the circuit diagram, let's take look at the following steps to understand ...
