WEBVTT

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In this activity, you're going to practice with the functionality that you have seen before, just

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before with the LCD display screen, and you're also going to combine that with the cell communication.

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So your goal here is to get some text I'm going to write here.

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So read a stream from Sale.

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OK, so you will use say, all right, OK.

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And you will open the same monitor and send a string directly from your computer to the area.

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So you read this and then what you do is you print on the LCD display screen.

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And what you are going to do is that you're going to alternate between line zero and line one.

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So can be also the first and the second line of the display screen.

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So the first text, you'll receive your print on the first line, then the second text you print on

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the second line, and then the third text, you are going to print it on the first line.

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So you're going to just replace the first text.

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OK, so every time you update a new line and one thing you need also to pay attention to is that, well,

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the LCD display screen has a maximum width of 16 characters.

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So for the purpose of this activity, you are going to also validate user input.

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And make sure that this is lower or equal than 16 characters.

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So if this is lower than 16 characters, you just print the text.

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If this is great, you can print some error message.

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For example, text is too long and to get the actual lengths, OK, for the string you are going to

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read.

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You can do so.

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Let's say you have a string called Estie or you can do Estado at length and this will return the length

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of the string.

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All right, so you have everything you need to know to get started, and I will see you in the next

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to listen for the solution.