We will start this chapter by learning to build our first electronic circuit around the Arduino Uno board. This will be our first hardware-software integrated prototype. Two examples have been chosen for this chapter. The first example is a series of three external red Light Emitting Diodes (LEDs). We will write an Arduino sketch that will blink the three LEDs, one at a time, in a cyclic fashion. The second example is using a Piezo Buzzer. We will learn to write a sketch to play a musical tune using the Buzzer.
The reason for starting off with these basic examples is to understand how to build a prototype using the Arduino platform. And what better way could there be than to show some light (using the LEDs) and make some sound (using the Buzzer)!
After reading through...