In this activity, you're going to practice with the functionality that you have seen before, just
before with the LCD display screen, and you're also going to combine that with the cell communication.
So your goal here is to get some text I'm going to write here.
So read a stream from Sale.
OK, so you will use say, all right, OK.
And you will open the same monitor and send a string directly from your computer to the area.
So you read this and then what you do is you print on the LCD display screen.
And what you are going to do is that you're going to alternate between line zero and line one.
So can be also the first and the second line of the display screen.
So the first text, you'll receive your print on the first line, then the second text you print on
the second line, and then the third text, you are going to print it on the first line.
So you're going to just replace the first text.
OK, so every time you update a new line and one thing you need also to pay attention to is that, well,
the LCD display screen has a maximum width of 16 characters.
So for the purpose of this activity, you are going to also validate user input.
And make sure that this is lower or equal than 16 characters.
So if this is lower than 16 characters, you just print the text.
If this is great, you can print some error message.
For example, text is too long and to get the actual lengths, OK, for the string you are going to
read.
You can do so.
Let's say you have a string called Estie or you can do Estado at length and this will return the length
of the string.
All right, so you have everything you need to know to get started, and I will see you in the next
to listen for the solution.