To make our Arduino learning come to life, we will look at how to use electronic components to build a circuit powered by Arduino that will perform a function.
First, lets look at some of the components we will experiment with...
When building a circuit on a breadboard, it is important to place each of the components in the correct sequence on the breadboard to ensure all components are connected in the right order to form an electrical circuit. To help us when we are learning we will be guided by circuit diagrams.
It is possible to destroy your Arduino board by wiring up electonic components incorrectly and powering up the board. For this reason, it is best to build your circuit without having the USB cable or 9V battery connector plugged into your Arduino board. Once you have built the circuit, carefully check that it matches the diagram and that the correct sized resistors are in place. Only then should you power up your board and upload your code for testing.