I know you have worked with entities which are actually tools that you can control to do some actions,
for example, to bailing out failing fadeout, let's discover a new kind of component, the push button,
which is in the category of sensors with a sensor.
You don't want to control the output of the component.
Instead, you want to read the data from it and from the data you read.
Then in your program, you can take some decisions.
For example, you will read the push-Button state and if it is priced, you will put on an additive
in the following license.
You will add a push-button to your secret.
You will understand how digital things work as input means and you will practice with your newly added
push-Button.
Let's start.