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Hello and welcome.

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In this lesson, we are going to take on the P.W. ambitions of the sport.

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All 36 of the 32 general purpose Input-Output Benz has a P.W. arm capability.

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This is a really great thing.

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But we must use more complex code to reach the same result on other pins.

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So let's put it on one of the general purpose, Input-Output with appreciable output signal.

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Now if you went to this schematic all this pin out for these people, you can see that all of these

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pins can be used to generate P.W. arm signals.

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The first thing that you need to think about when programming a P.W. on the signal is its frequency.

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You need to retrieve that signal at a certain or a specific frequency.

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We would use a value of 5000 hertz.

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That works fine with our lead.

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We must also specify that it P.W. Omni channel and the resolution of the BW and duty cycle I want.

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Explain that BWR, because you must have some basic knowledge about BW signals, but what it takes is

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a resolution, a channel and a frequency.

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So after specifying that you cycle using the resolution and the frequency on the channel, we can start

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programming.

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We can choose a channel from zero to 15 and a resolution between one and 16 bits.

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We will use Channel zero and the resolution of eight bits.

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So let's get started.

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That's good, according to your thumbnail sketch.

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And here's another sketch.

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Let's define some variables.

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First, we need to define that frequency and frequency.

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And let's make it 5000.

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Then we need the left channel.

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Let's make it zero and we need the resolution.

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And let's make it eight.

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Now let's use the general purpose input output one.

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Number two where we have our lead on our external LED, connected or attached.

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It's it also has a built in lid that can be used.

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So these parameters must be defined inside the setup function.

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So let's go and hide this code.

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Now what we are going to write in inside the setup function won't be something we are used to while

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going to light.

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Let's see a dustbin and lid see setup.

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Now the Let's See attachment and let's use it up.

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There are basically functions for the BW arm configuration.

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They are very similar to another great functional Arduino.

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So now that USP.

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Doesn't support another great function, but it does support a much better one, which is the one that

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we already mentioned.

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Let's see right there.

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Let's see.

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Light function is very similar to an outlook, right?

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It also requires two parameters that BW channel that we want to write about Utah and the BW value.

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We want to write to the selected channel.

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Now, let's first finish the setup function.

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Now the let's see setup function.

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Will take three parameters.

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The first one will be valid channel.

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The second one will be the frequency.

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The third one will be the resolution, which we already defined up there.

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Next, we are going to assign a lead to that channel, so let see a dash pin.

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Now the lid pin we already chose is two and we want to attach it to the lid channel that we have chosen.

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This is it.

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This is how you finish sitting that BW, um, frequency resolution and channel and how you can attach

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it to any output pin.

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Now, to tear down the lid, which is connected to PIN number two using the lid channel output from

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the BW, I'm signal.

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We need to set a specific brightness now to turn it on or off.

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We must define the duty cycle.

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For example, the turn of the lid that each cycle must be zero on the function lid see right that we

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already mentioned can be used inside the loop to set the brightness to zero.

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Now.

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We can use that function right now, that's right.

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Let's see.

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Right.

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It's exactly like analog, right?

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And it takes two parameters.

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The first one is the lead channel, which is this variable.

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And the second one is the duty cycle.

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Now you can add in duty cycle here and add zero.

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This will turn off valid because we have since zero.

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To the left channel, which has been number two, and it will set the protest to zero.

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Now different values of the duty cycle.

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Will turn on the lead with different priorities.

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Now this variable can be from zero up to 255 once that resolution used is eight bits.

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If we used 18 bit resolution, it can go from zero up to 1024 or 1023 and so on.

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We already mentioned that you can choose a resolution between one and up to 16.

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So the choice is yours, but you need to make sure that you are choosing a duty cycle that matches your

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resolution.

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So an eight bit resolution, that cycle would be between zero and 125 to 155.

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OK, now that we are done with this, we can use that potential meter connected to the analog pen from

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the previous lesson to control the brightness of that lid, or we can simply send values.

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Now, to test this out, let's complete the code.

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Let's first and the setup menu add cereal to begin and choose a moderate one hundred fifteen thousand

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two hundred, then other delay as usual for one second

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after the delay.

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Let's write a sentence to make sure that everything is working correctly.

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Trend line.

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And let's name this thing on.

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OK, now we have the lid setup on the lid see at dustbin and we can use the lid see right up here.

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And the first value that will be written is zero so that it will be off.

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Now, inside the void loop, we can send other values.

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We can't send.

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Duty cycle, let's define duty cycle here.

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Plus.

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Equal +1, and let's add.

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It's make it 15 milliseconds, okay, now, uh, let's walk this line down here.

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It will start with zero.

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Then it will be +1 or let's make +10 and we'll keep moving until it reaches 235.

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We kind of had an if statement, but this this this called out.

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Let's first upload or verify it to make sure it doesn't have any errors.

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Let's save it.

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BW on this thing.

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OK, then combining now, let's upload the code.

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We should we should add a line to make sure that we will pretend that it's cycle.

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We want to combine the cold, but for now.

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Let's put it, compile it so that we can get that just like in here now.

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Let's recompile the code for the fight again.

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Now it's loaded.

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OK, now.

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As you can see, it went above to 155 very fast, so we need to control this once the duty cycle reaches

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its cycle is of equal to 125.

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We needed to reset to zero.

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Now let's combine it again.

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Now, let's upload it.

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OK.

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Done.

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Now, as you can see, once it reaches 255 intercepts to zero and from your ISP board, you can see

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that the built in led all of accelerate that you are connecting is fading in and out using this very

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simple chord.

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Now, now let's summarize what we did this last one.

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We have saved the frequency to five thousand.

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We have choose the channel to be zero and we have chosen the resolution to be eight, which means that

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we have to cycle between zero and 255.

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We started with a duty cycle of zero and he shell out of the theater communication.

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Here we used new functions.

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Let's use it up to set up the BW frequency channel and resolution.

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And this lets you attach pin to attach the function to us to a specific pin, which has been number

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two here.

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And the LCD right is basically like analog, right?

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It takes a channel and the duty cycle and to try its value to that channel.

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Now in this photo, we have used the LED channel, which was proudly attached here to pick number two

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and the new Typekit.

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And we kept increasing the cycle by 10.

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And printed on the Tehran monitor.

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Now, once that U.S.A. reaches 255, which is the limit here, we did that.

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I said the cycle to zero.

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To repeat the process again.

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And that is how you can fade added using P.W. Signal.

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You can apply this to any other thing.

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You can choose 10 bit resolution in that case, if you did choose 10 bit resolution.

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You will get values between zero and one thousand twenty three.

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So in that case, this if statement will be 1023 instead of a set of 255.

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That's it.

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I know that this was a long glass on, but I wanted to explain, Uh, I'm using an example.

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I hope that everything is now well explained to you.

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If you have any question regarding anything, you can ask.

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This is Ashraf.

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See you next lesson.

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Happy ending.

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This is educational engineering team.