In this project, we will learn how to use a speaker (peizo sounder) and use switch button to change the pitch of the sound. Sorry about this one, you might find it a bit difficult…

In this project, I will show you how to control multiple LEDs, and use a switch button to change displaying pattern. I will also show you how to include header file to make code tidier.

In our first project, I will be showing you the basic connections of a LED circuit. To make it more interesting and challenging, I later on replace the switch with a potentiometer, to control the…