WEBVTT

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In this activity.

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Number four, we are going to start from the code actually of the activity number three.

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So we have the Python code on the Raspberry Pi here and the Cplusplus code on the Arduino.

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So first thing I'm going to just copy this inside a new project okay I'm going to close that okay.

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So I have this new project.

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And let's remove the logs here.

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And let's copy this inside this new file also.

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And well I'm just gonna add here Time.sleep 0.0.

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And that was missing and that I previously forgot okay.

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So now well basically that's going to be the same.

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But this program is going to consume less resources okay.

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And much less CPU.

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So what is your challenge here.

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Your challenge is simply to debug what you receive okay.

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And what you do on the Arduino with the LCD screen that we have added.

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Okay.

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If you remember before I told you that it was kind of difficult to debug what's going on in the Arduino,

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so what you receive, etc..

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Well, what we can do now is when we receive something, we can print that on the LCD.

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When we send something, we can also print that on the LCD, for example with a log message send counter

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and the counter.

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So what you can do here in this activity is first initialize the LCD here.

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And then well whenever you receive something or you send something you print that on the LCD.

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So you print a nice message and you can play with the cursor okay.

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So you can make sure that all the text is on the screen.

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And so of course here you are more limited because you only have a screen that is 16 by two.

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So you can only put 32 characters max at a time.

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Okay, so that's a bit limited, but still you can get good information from what is going on in your

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program.

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And well, on the Raspberry Pi side, there is nothing to change.

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We are just going to use the exact same program.

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All right, I will see you in the next video for the solution.