{"page":"\n\n
\n
\n
\n
\n
\n\nVideo\n
\n

\n3 Ways to Comment Out Code In Arduino\n

\n
\n
\nGet Free Access for 10 Days!\n
\n
\n
\n
\n
\n
×
\n\n\n
\n\nPublisher:\n\nProgramming Electronics Academy\n\n\n
\n
\nCommenting out code. What does that mean exactly? Now, I'm not talking about commenting code. That's kind of a discussion in and of itself. I'm talking about commenting out code. That's when you kind of selectively turn off some of the...\nCommenting out code. What does that mean exactly? Now, I'm not talking about commenting code. That's kind of a discussion in and of itself. I'm talking about commenting out code. That's when you kind of selectively turn off some of the code in your program. In this lesson, we're gonna cover three different ways to comment out code in your Arduino programs. They're all super easy, and you're gonna have them down pat, in no time. We'll also show you a super helpful keyboard shortcut that's gonna save you a ton of time, and a way to comment out multiple lines of code using just a single value. By the end of this lesson, you'll be equipped to comment out code in three different ways. Stay tuned. Subscribe to our YouTube channel to get more videos like this. So here we are in the Arduino IDE, and I've got a SketchUp, and all it's doing is walking through an array of pin numbers, and then it is turning on each of the LEDs attached to those pin numbers. I'm using a kit-on-a-shield to light up the LEDs. You can see it's just kind of going back and forth. And we're just gonna use this sketch to kind of demonstrate what it means to comment out different blocks of code. So let's do this. So let's say I've got a line of code in here that I don't want to be included in the program when it gets uploaded. Like I just want to temporarily turn off a line of code. What do I do? Well, I just put two forward slashes in front of the line. These two forward slashes are called a comment, and you'll notice all of the text, all the code after that line get grayed out. It kind of becomes this grayer color. And what this means is that this line of code is not gonna be verified when we verify it, or it's not gonna get included when we upload it either. So this is effectively a way to turn off a line of code. Now, you don't have to just use comments for commenting out code. You can do it to leave little notes to yourself, but this isn't about those notes. This is about specifically commenting out code and different ways to do it. Now, another way to do this exact same thing of typing forward slash, forward slash is to put your cursor where you want to comment out some code, go up to Edit, and then click Comment/Uncomment, and that'll do the same thing. I'll just undo that. Or you could select an entire code block and go up to Edit, Comment/Uncomment. But you know, having to use the mouse to do stuff is kind of a pain in the butt. So there is a keyboard shortcut for doing this. So what you do is you put your cursor on the line or lines of code that you want to comment, and then you press Control + Forward Slash on a PC, and it's Command + Forward Slash on a Mac. And what it does is it puts that comment in there for you. If you want to uncomment that line of code, you just press it again and it will toggle it back off. So it acts as a toggle. Again, it's Control + Forward Slash on a PC or Command + Forward Slash on a Mac\n
\n
\n\n
\n
\n
\n
\n

Resource Details

\n
\n
\n
\n
Curator Rating
\n
\n
\n
\n
\n
\n
Educator Rating
Not yet Rated
\n
\n
\n
\n
\n
Media Length
\n
8:57
\n
\n
\n
\n
\n
Grade
Higher Ed
\n
\n
\n
\n
\n
Subjects
STEM
1 more...
\n
\n
\n
\n
\n
Media Type
Instructional Videos
\n
\n
\n
\n
\n
Source:
\n
\nProgramming Electronics Academy\n\n
\n
\n
\n
\n
\n
Date
\n
2021
\n
\n
\n
\n
\n\n
Language
English
\n
\n
\n
\n
\n
Audiences
For Teacher Use
2 more...
\n
\n
\n
\n
\n
Usage Permissions
Fine Print: Educational Use
\n
\n
\n
\n
\n
\n

Additional Materials

\n
\n\nSign in or Join Now
\" data-title=\"Get Full Access\" data-container=\"body\" rel=\"popover\" tabindex=\"0\" href=\"/subscription/new\">Video Transcript\n
\n
\n\nSign in or Join Now
\" data-title=\"Get Full Access\" data-container=\"body\" rel=\"popover\" tabindex=\"0\" href=\"/subscription/new\">Video Preview\n
\n
\n
\n

Concepts

\n
\n
lines, time, electronics
\n
\n\n\n
\n
\n
\n
\n

Additional Tags

\n
\n
arduino, arduino(brand), arduino tutorial, arduino lesson, open source hardware group, learning arduino, microcontrollers, arduino ide, arduino sketch, c++, programming electronics academy, multiline comment, pin numbers, forward slashes, keyboard shortcut, free trial, command forward, preprocessor directive, multiple lines, turn, commenting, comments, taking, comment, program, write, alright, included, kind, code, talking, lesson, cover, ways, sketch, turning, back, demonstrate, means
\n
\n\n\n
\n
\n
\n
\n

Classroom Considerations

\n
Best For: Explaining a topic
Video is ad-free
\n
\n
\n

Educator Ratings

\n
\n
\n
\n
\n
\n\nShow resource details\n
\n
\n\" data-title=\"Get Full Access\" data-container=\"body\" rel=\"popover\" tabindex=\"0\" aria-label=\"Play video: 3 Ways to Comment Out Code In Arduino\" href=\"/subscription/new\">\"3\n\n
\n
\n
\n\n\n\n"}