{"page":"\u003clink rel=\"stylesheet\" href=\"https://lessonplanet.com/assets/packs/css/resources-572d6a42.css\" /\u003e\n\u003clink rel=\"stylesheet\" href=\"https://lessonplanet.com/assets/packs/css/lp_boclips_stylesheets-f4d0de30.css\" media=\"all\" /\u003e\n\u003cdiv data-title='Tutorial 04: Understanding Arduino Syntax: Arduino Course for Absolute Beginners (ReM)' data-url='/boclips/videos/62a0e4871c259e357d94ff43' data-video-url='/boclips/videos/62a0e4871c259e357d94ff43' id='bo_player_modal'\u003e\n\u003cdiv class='boclips-resource-page modal-dialog panel-container'\u003e\n\u003cdiv class='react-notifications-root'\u003e\u003c/div\u003e\n\u003cdiv class='rp-header'\u003e\n\u003cdiv class='rp-type'\u003e\n\u003ci aria-hidden='true' class='fai fa-regular fa-circle-play'\u003e\u003c/i\u003e\nVideo\n\u003c/div\u003e\n\u003ch1 class='rp-title' id='video-title'\u003e\nTutorial 04: Understanding Arduino Syntax: Arduino Course for Absolute Beginners (ReM)\n\u003c/h1\u003e\n\u003cdiv class='rp-actions'\u003e\n\u003cdiv class='mr-1'\u003e\n\u003ca class=\"btn btn-success\" data-posthog-event=\"Signup: LP Signup Activity\" data-posthog-location=\"body_link_boclips\" data-remote=\"true\" href=\"/subscription/new\"\u003e\u003cspan\u003e\u003cspan\u003eGet Free Access\u003c/span\u003e\u003cspan class=\"\"\u003e for 10 Days\u003c/span\u003e\u003cspan\u003e!\u003c/span\u003e\u003c/span\u003e\u003c/a\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003cdiv class='rp-body'\u003e\n\u003cdiv class='rp-info'\u003e\n\u003cdiv aria-label='Hide resource details' class='rp-hide-info' role='button' tabindex='0'\u003e\u0026times;\u003c/div\u003e\n\u003ci aria-label='Expand resource details' class='rp-expand-info fai fa-solid fa-up-right-and-down-left-from-center' role='button' tabindex='0'\u003e\u003c/i\u003e\n\u003ci aria-label='Compress resource details' class='rp-compress-info fai fa-solid fa-down-left-and-up-right-to-center' role='button' tabindex='0'\u003e\u003c/i\u003e\n\u003cdiv class='rp-rating'\u003e\n\u003cspan class='resource-pool'\u003e\n\u003cspan class='pool-label'\u003ePublisher:\u003c/span\u003e\n\u003cspan class='pool-name'\u003e\n\u003cspan class='text'\u003e\u003ca data-publisher-id=\"30358947\" href=\"/search?publisher_ids%5B%5D=30358947\"\u003eProgramming Electronics Academy\u003c/a\u003e\u003c/span\u003e\n\u003c/span\u003e\n\u003c/span\u003e\n\u003c/div\u003e\n\u003cdiv class='rp-description'\u003e\n\u003cspan class='short-description'\u003eThe coding language that Arduino uses is very much like C++ (\"see plus plus\"), which is a rather common language in the world of computing.  As I have alluded to in previous lessons, the code you learn to write for your Arduino will be...\u003c/span\u003e\n\u003cspan class='full-description hide'\u003eThe coding language that Arduino uses is very much like C++ (\"see plus plus\"), which is a rather common language in the world of computing.  As I have alluded to in previous lessons, the code you learn to write for your Arduino will be very similar to code you write in any other computer language - all the basic concepts remain the same - it's just a matter of learning a new dialect should you pursue other ventures.\u003cbr/\u003eThe code you will be writing is called \"human readable\", that is, it will make sense to you (sometimes) and will be organized for a human to follow.  Part of the job of the IDE is to take the human readable code and translate it into machine-readable code to be executed by the Arduino.  This process is called compiling.\u003cbr/\u003e\u003cbr/\u003eThe process of compiling is seamless to the user. All you have to do is press a button.  If you have some errors in your computer code, the compiler will display an error message at the bottom of the IDE and highlight the line of code that seems to be the issue.  The error message is meant to help you identify what you might have done wrong - sometimes they are very explicit, like saying, \"Hey - you forget a semi-colon\", some times they are way out there.\u003cbr/\u003e\u003cbr/\u003eWhy would I be concerned with a semi colon you ask? A semi-colon is part of the Arduino languages syntax, the rules that govern how the code is written.  It is sort of like grammar when you think of writing.  Say for example we didn't use periods when we wrote - every one would have a heck of a time trying to figure out when sentences ended and started.  Or if we didn't employ the comma, how would we convey a dramatic pause to the reader?\u003cbr/\u003e\u003cbr/\u003eIf you ever had an English teacher with an overactive red pen, the complier is 10 times worse.  In fact - your programs WILL NOT compile without perfect syntax.  This might drive you crazy at first because it is very natural to forget syntax, but as you program more you will to learn to be assiduous with coding grammar.\u003cbr/\u003e\u003cbr/\u003eSo lets get our hands dirty and introduce some sytax.\u003cbr/\u003e\u003cbr/\u003eThe semi-colon ;\u003cbr/\u003e\u003cbr/\u003eA semi colon needs to follow every statement we write in Arduino.  For example\u003cbr/\u003e\u003cbr/\u003eint LEDpin = 9;\u003cbr/\u003e\u003cbr/\u003eIn this statement, I am assigning a value to an integer variable (we will cover this later), notice at the end, the semi-colon.  This lets the compiler know that you have finished a chunk of code and are moving on to the next piece.\u003cbr/\u003e\u003cbr/\u003eThe double back slash for single line comments //\u003cbr/\u003e\u003cbr/\u003e// When you type these all the text that follows on the same line will be greyed out\u003cbr/\u003e\u003cbr/\u003eComments are what you use to annotate your code.  Good code is commented well.  Comments are meant to inform you and anyone else who might stumble across your code, what the heck you were thinking when you wrote it.  A good comment would be something like this...\u003cbr/\u003e\u003cbr/\u003e//This is the pin on the Arduino that the LED is plugged into\u003cbr/\u003e\u003cbr/\u003eint LEDpin = 9;\u003cbr/\u003e\u003cbr/\u003eNow, in 3 months when I review this program, I know where to stick my LED.\u003cbr/\u003e\u003cbr/\u003eComments will be ignored by the compiler - so you can write whatever you like in them.  If you have a lot you need to explain, you can also use a multi-line comment which looks like this...\u003cbr/\u003e\u003cbr/\u003e/* The multi-line comment opens with a single backslash followed by an asterisk. 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