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I in this lecture want to show you how to write and execute a very, very simple with the simplest possible

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really micro python program.

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We are going to run it using the ID in a couple of different ways.

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So let me show you first.

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Bring up your idea, Ed, and this time I'm going to open up these files.

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Sidebar on the left side of the macro python window so you can see that my experience is already connected

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to my computer via the USB cable, and I'm not seeing it, though, on my environment.

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So I'm going to check first that I have selected the correct interpreter and I have not.

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So let's switch that to the hospital, to the appropriate port down here.

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That's the first thing to do, make sure that we have a connection.

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Then we have the correct device selected.

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So since I did that, you can see that the micro part of the device did appear here again under the

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psy ops tab.

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And because this is a very fresh installation, I just thought the firmware a couple of years ago,

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the only thing that appears, the only file that appears on the device is the boot P1.

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I'm going to talk more about the people in the next section, which is dedicated to making Python on

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the E.S.P 32.

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I just double clicked on it and the file company appeared in the new tab.

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They could see the contents are lines of code that come out.

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So they're not going to have any effect and there's just some python command.

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But you can totally forget about this right now because we don't really need it.

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What I want to do is to run a very simple program.

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First, I'm going to run the program on the shell.

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Which is basically the problem is just one single line of code, and then I'm going to create a file

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which would allow me to run the program as a file using microprocessor.

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So the program is the classic world.

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I'm just going to say print and then like the string of text.

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I want to print out

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words from Michael Python and say into this instruction, then Michael Python running on the two will

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print out this message.

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Now, you notice that I entered this command on the comment from the Michael Python command prompt,

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which is running on my HP three two.

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So this is the interactive show or also known as recall.

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So whenever you hear a report, basically what it means is the ability to issue commands life essentially

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with two micro python and have those commands execute it immediately in any way that you want to go

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about executing programs in the macro python, especially for larger programs, of course, is to do

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so.

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One is to do so in a file like this.

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So just copied my single command.

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But the small program into a file I'm going to enter a convent is what I'm going to use.

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The sharp symbol precision, like a simple python program.

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And I'm going to say this program, the only idea it gives me a choice of where is it that I'd like

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to see this program that my computer or the Python device in this instance, I'm going to go for the

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computer and that will give me the option to store it somewhere.

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So let's say I'm going to put it.

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On this location and just saying hello, world, be watching as the final system and say that.

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All right, so you can see that that program appeared right here.

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And now what I can do is to click on this green button and have the program executed.

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Now, this is sometimes a confusing concept for people new to Python and to eat what just happened is

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that I've got a small python program without a safety net.

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I've got a Python program here stored on my computer, which was executed on the E.S.P 30 device.

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So you can see that I'm connected again to my python running the city, too.

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And this program is stored on a file on my computer, which, upon pressing the green button, was sent

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to the ISP three to four execution.

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It was executed and then its output came back to me on the show.

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So this is one way of doing this.

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Another way is, of course, to have the Python script stored on the device itself.

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So there's a couple of ways by which you can do that.

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The easiest way, since we already have this file on our local machines to right click and then select

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upload to forge, which is going to send the file and stored on the E.S.P 32 flash file system.

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Now, if I double click on it, you'll see that a new tab comes up.

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It's called Square Brackets with the same file name.

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And the square brackets indicate that this file is stored on the device.

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No square brackets means that the file is stored on my computer.

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So then once I had the father I would execute with, regardless of whether it's on the computer or on

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the computer to the same thing, just press on the green button or F5 and it will execute it.

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Really this absolutely no difference.

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Once you have the file, regardless of where the final is, it will be executed.

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By sending it to the appropriate interpreter, which you have selected and the only options.

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All right, there are a few instances of this system that we're going to explore a little later, those

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nuisances have to do with dependencies.

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For example, what if her children go to their file that is stored on my computer?

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What if there is a dependency in my program?

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For example, what if there is a module that is required by this program which is not stored on the

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micro python device, then can you just be able to upload and execute this file on the device?

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You also need to take care of those dependencies.

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And there are a few examples later on in this course where I show you how that works.

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In particular, if you are curious, then you want to go ahead, have a look at the Wi-Fi example with

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a Wi-Fi example.

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There are dependencies.

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We've got, for example, a Jason text file that contains Wi-Fi network credentials, things of that

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sort that the program depends on.

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And those dependencies will ultimately be stored on the micropayment device.

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Or obviously, we're going to do a lot more into how to write that and execute programs on the ability

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to use in micro python.

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But in this quick introduction, I just want to show you the simplest possible way of doing that.

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In the next lecture, I want to do a simple demonstration of some of the other capabilities and features

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of learning and in particular of the heap and the stack and fireballs.

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Patents, which are interesting from the point of view of using them during Python programming, they

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are not very useful in terms of micro python programming.

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But nevertheless, these questions that I often get and I wanted to just show you what these three page.

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Listed, at least.