Controlling GPIO devices with PyQt

For our first project, we're going to learn how we can control an external circuit from a PyQt application. You'll be wiring up a multicolor LED and controlling its color using QColorDialog. Gather the components listed in the Technical requirements section for the first project and let's get started.

Connecting the LED circuit

Let's begin this project by connecting the components of our circuit on the breadboard. Power off the Pi and disconnect the power, and then place it near your breadboard.

It's always a good idea to shut down your Raspberry Pi and disconnect the power before connecting circuits to the GPIO pins. This will reduce the risk of destroying your Raspberry...