CINXE.COM

Adafruit Learning System

<!doctype html> <html lang="en-US" prefix="og: http://ogp.me/ns#"> <head> <meta charset="utf-8"> <link rel="mask-icon" href="/assets/adafruit_favicon-fa25640e.svg" color="#000000"> <link rel="icon" type="image/x-icon" href="/assets/favicon-5362a6c7.ico" /> <title>Adafruit Learning System</title> <meta name="csrf-param" content="authenticity_token" /> <meta name="csrf-token" content="WKJr3Pdu-VJ-FKi8ind_hQuN6aUckBNQrixqjlJhleAarijwQESlvEbfjRX7erMjmrXaeB3aZ1hFjQf8K0DRRg" /> <link rel="alternate" type="application/atom+xml" title="ATOM" href="/feed" /> <link rel="alternate" type="application/rss+xml" title="RSS" href="/feed.rss" /> <link rel="stylesheet" href="/assets/application-804ecc1c.css" data-turbo-track="reload" media="screen" /> <link rel="preload" href="https://cdn-shop.adafruit.com/fonts/proximanova/proximanova-light-webfont.woff2" as="font" type="font/woff2" crossorigin> <link rel="preload" href="https://cdn-shop.adafruit.com/fonts/proximanova/proximanova-regular-webfont.woff2" as="font" type="font/woff2" crossorigin> <link rel="preload" href="https://cdn-shop.adafruit.com/fonts/proximanova/proximanova-semibold-webfont.woff2" as="font" type="font/woff2" crossorigin> <script> var dataLayer = []; function gtag(){dataLayer.push(arguments);} </script> <!-- Google Tag Manager --> <script>(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start': new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0], j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src= 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f); })(window,document,'script','dataLayer','GTM-PRPXBQ6');</script> <!-- End Google Tag Manager --> <script> gtag('js', new Date()); </script> <meta name='viewport' content='initial-scale=1, viewport-fit=cover'> <!-- <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1"> --> <meta http-equiv="X-UA-Compatible" content="IE=Edge"> <script> window.rails_env = 'production'; </script> <script type="application/ld+json"> { "@context": "http://schema.org", "@type": "WebSite", "url": "https://learn.adafruit.com/", "potentialAction": { "@type": "SearchAction", "target": "https://learn.adafruit.com/search?q={search_term}", "query-input": "required name=search_term" } } </script> <script src="/assets/application-3792cf70.js" data-turbo-track="reload" type="module"></script> </head> <body class="application user users show production"> <!-- Google Tag Manager (noscript) --> <noscript><iframe src="https://www.googletagmanager.com/ns.html?id=GTM-PRPXBQ6" height="0" width="0" style="display:none;visibility:hidden"></iframe></noscript> <!-- End Google Tag Manager (noscript) --> <div id="outer-wrapper"> <div id="inner-wrapper"> <div id="messaging-wrapper" class="messages-container" data-load="https://www.adafruit.com/api/multi_message.php"></div> <a data-turbo="false" class="skip-to-main" href="#main-content-container">Skip to main content</a> <header id="adafruit-header" aria-label="Adafruit header"> <div id="small-header"> <div class="first-row"> <nav aria-label="Adafruit applications menu"> <ul class="application-links"> <li><a aria-label="Adafruit Shop" href="https://www.adafruit.com">Shop</a></li> <li class="selected"><a aria-label="Adafruit Learning System" href="https://learn.adafruit.com">Learn</a></li> <li><a aria-label="Adafruit Blog" href="https://blog.adafruit.com">Blog</a></li> <li><a aria-label="Adafruit Forums and Support" href="https://forums.adafruit.com">Forums</a></li> <li><a aria-label="Adafruit IO, the internet of things" href="https://io.adafruit.com">IO</a></li> <li><a aria-label="Adafruit Youtube Videos" href="https://www.youtube.com/adafruit/live">LIVE!</a></li> <li><a aria-label="Adafruit product box subscription" href="https://www.adabox.com">AdaBox</a></li> </ul> </nav> </div> <div class="second-row"> <div class="row-content"> <div id="mobile-header-logo"> <a href="https://learn.adafruit.com"> <img id="small-logo" height="50" width="50" alt="Adafruit Logo" src="/logos/adafruit_logo_small.png?4293751367676314781" /> </a> </div> <button id="mobile-menu-button" class="c-hamburger c-hamburger--htx"> <span>toggle menu</span> </button> <div id="mobile-search-wrapper"> <form action="https://learn.adafruit.com/search" method="get"> <label for="mobile-search" style="display:none;">Search</label> <input id="mobile-search" type="text" name="q" autocomplete="off" data-app-id="W9DMM4OTH0" data-app-key="28a76a2b87be38db12283ebda329425a" data-app-index="learn_guides_production" data-app-uri="https://learn.adafruit.com" /> <button type="submit" aria-label="Submit search"><i class="fa fa-search"></i></button> </form> </div> <a id="mobile-header-cart" href="https://www.adafruit.com/shopping_cart"> <span class="small-cart-count" aria-live="polite">0</span> <i class="fa fa-shopping-cart"></i> </a> </div> </div> <nav id="small-header-nav"> <div id="small-menu"> <ul> <li class="account-info"> <a href="/users/sign_in">Sign In</a> | <a href="https://accounts.adafruit.com/">Create Account</a> </li> <li><a href="https://adafruit-playground.com">Playground</a></li> <li><a href="/guides/latest">New Guides</a></li> <li><a href="/groups">Series</a></li> <li><a href="https://www.adafruit.com/wishlists">Wishlists</a></li> <li> <a class="random-guide-link" aria-label="View a Random Guide" href="https://learn.adafruit.com/guides/random"> <svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 512 512" style="enable-background:new 0 0 512 512;" xml:space="preserve"> <g> <g> <path fill="currentColor" d="M478.578,244.475H278.047c-3.81,0-7.42,0.78-10.829,1.961l56.305-56.305c6.306-6.306,9.759-14.706,9.759-23.64 c0-8.935-3.454-17.335-9.759-23.64L190.282,9.609c-12.589-12.611-34.692-12.611-47.281,0L9.759,142.85 C3.454,149.156,0,157.556,0,166.491s3.454,17.335,9.759,23.64l133.242,133.242c6.306,6.306,14.683,9.759,23.64,9.759 c8.957,0,17.335-3.454,23.64-9.759l56.305-56.305c-1.181,3.409-1.961,7.019-1.961,10.829v200.531 c0,18.427,14.995,33.422,33.422,33.422h200.531c18.427,0,33.422-14.995,33.422-33.422V277.897 C512,259.47,497.005,244.475,478.578,244.475z M182.394,271.368c-4.345,4.345-10.049,6.506-15.753,6.506 s-11.408-2.161-15.753-6.506c-8.712-8.69-8.712-22.816,0-31.506c8.69-8.712,22.816-8.712,31.506,0 C191.106,248.552,191.106,262.679,182.394,271.368z M182.394,182.244c-4.345,4.345-10.049,6.506-15.753,6.506 c-5.704,0-11.408-2.161-15.753-6.506c-8.712-8.69-8.712-22.816,0-31.506c8.69-8.712,22.816-8.712,31.506,0 C191.106,159.428,191.106,173.554,182.394,182.244z M182.394,93.119c-4.345,4.345-10.049,6.506-15.753,6.506 c-5.704,0-11.408-2.161-15.753-6.506c-8.712-8.69-8.712-22.816,0-31.506c8.69-8.712,22.816-8.712,31.506,0 C191.106,70.303,191.106,84.429,182.394,93.119z M311.469,467.287c-12.277,0-22.281-9.982-22.281-22.281 c0-12.299,10.004-22.281,22.281-22.281c12.277,0,22.281,9.982,22.281,22.281C333.75,457.305,323.746,467.287,311.469,467.287z M311.469,333.6c-12.277,0-22.281-9.982-22.281-22.281c0-12.299,10.004-22.281,22.281-22.281c12.277,0,22.281,9.982,22.281,22.281 C333.75,323.618,323.746,333.6,311.469,333.6z M378.313,400.444c-12.277,0-22.281-9.982-22.281-22.281 c0-12.299,10.004-22.281,22.281-22.281s22.281,9.982,22.281,22.281C400.594,390.462,390.59,400.444,378.313,400.444z M445.156,467.287c-12.277,0-22.281-9.982-22.281-22.281c0-12.299,10.004-22.281,22.281-22.281s22.281,9.982,22.281,22.281 C467.438,457.305,457.433,467.287,445.156,467.287z M445.156,333.6c-12.277,0-22.281-9.982-22.281-22.281 c0-12.299,10.004-22.281,22.281-22.281s22.281,9.982,22.281,22.281C467.438,323.618,457.433,333.6,445.156,333.6z"/> </g> </g> </svg> </a> </li> </ul> </div> <div id="mobile-search-results"></div> </nav> </div> <div id="large-header"> <nav class="first-row" aria-label="Adafruit main site"> <div class="row-content"> <nav aria-label="Adafruit applications menu"> <ul class="application-links"> <li><a aria-label="Adafruit Shop" href="https://www.adafruit.com">Shop</a></li> <li class="selected"><a aria-label="Adafruit Learning System" href="https://learn.adafruit.com">Learn</a></li> <li><a aria-label="Adafruit Blog" href="https://blog.adafruit.com">Blog</a></li> <li><a aria-label="Adafruit Forums and Support" href="https://forums.adafruit.com">Forums</a></li> <li><a aria-label="Adafruit IO, the internet of things" href="https://io.adafruit.com">IO</a></li> <li><a aria-label="Adafruit Youtube Videos" href="https://www.youtube.com/adafruit/live">LIVE!</a></li> <li><a aria-label="Adafruit product box subscription" href="https://www.adabox.com">AdaBox</a></li> </ul> </nav> <div id="account"> <span class="sign-out"><a href="/users/sign_in">Sign In</a></span> <div class="cart"> <a aria-label="Shopping Cart, 0 items" aria-live="polite" href="https://www.adafruit.com/shopping_cart"> <i class="fa fa-shopping-cart"></i> 0 </a> </div> </div> </div> </nav> <nav class="second-row" aria-label="Adafruit Learn application"> <div class="row-content"> <div class="left-content"> <div id="logo"> <a title="Adafruit Learning System" href="https://learn.adafruit.com"> <img alt="Adafruit Logo" src="/logos/logo_2x.png?4293751367676314781" /> </a> </div> <ul class="main-nav-links"> <li class="dropdown with-overlay"> <button class="dropdown-label nav-link" aria-haspopup="true">Explore & Learn</button> <div class="dropdown-container"> <div class="dropdown-content" tabindex="-1"> <div class="flyout"> <div class="three-panels"> <div class="first-column"> <div class="content-header"> <span class="title">Learn Categories</span> </div> <div class="categories"> <ul> <li><a href="https://learn.adafruit.com/category/3d-printing">3D Printing</a></li> <li><a href="https://learn.adafruit.com/category/adabox">AdaBox</a></li> <li><a href="https://learn.adafruit.com/category/adafruit-products">Adafruit Products</a></li> <li><a href="https://learn.adafruit.com/category/arduino">Arduino Compatibles</a></li> <li><a href="https://learn.adafruit.com/category/breakout-boards">Breakout Boards</a></li> <li><a href="https://learn.adafruit.com/category/circuit-playground">Circuit Playground</a></li> <li><a href="https://learn.adafruit.com/category/circuitpython">CircuitPython</a></li> <li><a href="https://learn.adafruit.com/category/clue">CLUE</a></li> <li><a href="https://learn.adafruit.com/category/community-support">Community Support</a></li> <li><a href="https://learn.adafruit.com/category/components">Components</a></li> <li><a href="https://learn.adafruit.com/category/crickit">Crickit</a></li> <li><a href="https://learn.adafruit.com/category/customer-projects">Customer &amp; Partner Projects</a></li> <li><a href="https://learn.adafruit.com/category/development-boards">Development Boards</a></li> <li><a href="https://learn.adafruit.com/category/educators">Educators</a></li> <li><a href="https://learn.adafruit.com/category/el">EL Wire/Tape/Panel</a></li> <li><a href="https://learn.adafruit.com/category/feather">Feather</a></li> <li><a href="https://learn.adafruit.com/category/gaming-1">Gaming</a></li> </ul> <ul> <li><a href="https://learn.adafruit.com/category/hacks">Hacks</a></li> <li><a href="https://learn.adafruit.com/category/internet-of-things-iot">Internet of Things - IOT</a></li> <li><a href="https://learn.adafruit.com/category/lcds-and-displays">LCDs &amp; Displays</a></li> <li><a href="https://learn.adafruit.com/category/leds">LEDs</a></li> <li><a href="https://learn.adafruit.com/category/machine-learning">Machine Learning</a></li> <li><a href="https://learn.adafruit.com/category/makecode">MakeCode</a></li> <li><a href="https://learn.adafruit.com/category/maker-business">Maker Business</a></li> <li><a href="https://learn.adafruit.com/category/micro-bit">micro:bit</a></li> <li><a href="https://learn.adafruit.com/category/microcontrollers">Microcontrollers</a></li> <li><a href="https://learn.adafruit.com/category/programming">Programming</a></li> <li><a href="https://learn.adafruit.com/category/raspberry-pi">Raspberry Pi</a></li> <li><a href="https://learn.adafruit.com/category/robotics">Robotics &amp; CNC</a></li> <li><a href="https://learn.adafruit.com/category/sensors">Sensors</a></li> <li><a href="https://learn.adafruit.com/category/stemma">STEMMA</a></li> <li><a href="https://learn.adafruit.com/category/tools">Tools</a></li> <li><a href="https://learn.adafruit.com/category/trellis">Trellis</a></li> <li><a href="https://learn.adafruit.com/category/wearables">Wearables</a></li> </ul> </div> </div> <div class="middle-column"> </div> <div class="last-column hide-md"> <section class="image-content-card"> <img data-src="https://learn.adafruit.com/assets/headlines/stemma-690676c3.jpg" class="lazy" aria-hidden="true" alt="Explore, Groups to get your gears turning" src="data:," /> <div class="text"> <div class="main"> <span>Explore</span> </div> <div class="tagline"> <span>Groups to get your gears turning</span> </div> </div> <div class="button"> <a title="Groups to get your gears turning, Explore" href="https://learn.adafruit.com/explore">Explore Groups</a> </div> </section> </div> </div> </div> </div> </div> </li> <li class="nav-link"> <a class="new-guides-link" href="https://learn.adafruit.com/guides/latest">New Guides</a> </li> <li class="nav-link"> <a href="https://adafruit-playground.com">Playground</a> </li> <li class="nav-link"> <a class="random-guide-link" aria-label="View a Random Guide" href="https://learn.adafruit.com/guides/random"> <svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 512 512" style="enable-background:new 0 0 512 512;" xml:space="preserve"> <g> <g> <path fill="currentColor" d="M478.578,244.475H278.047c-3.81,0-7.42,0.78-10.829,1.961l56.305-56.305c6.306-6.306,9.759-14.706,9.759-23.64 c0-8.935-3.454-17.335-9.759-23.64L190.282,9.609c-12.589-12.611-34.692-12.611-47.281,0L9.759,142.85 C3.454,149.156,0,157.556,0,166.491s3.454,17.335,9.759,23.64l133.242,133.242c6.306,6.306,14.683,9.759,23.64,9.759 c8.957,0,17.335-3.454,23.64-9.759l56.305-56.305c-1.181,3.409-1.961,7.019-1.961,10.829v200.531 c0,18.427,14.995,33.422,33.422,33.422h200.531c18.427,0,33.422-14.995,33.422-33.422V277.897 C512,259.47,497.005,244.475,478.578,244.475z M182.394,271.368c-4.345,4.345-10.049,6.506-15.753,6.506 s-11.408-2.161-15.753-6.506c-8.712-8.69-8.712-22.816,0-31.506c8.69-8.712,22.816-8.712,31.506,0 C191.106,248.552,191.106,262.679,182.394,271.368z M182.394,182.244c-4.345,4.345-10.049,6.506-15.753,6.506 c-5.704,0-11.408-2.161-15.753-6.506c-8.712-8.69-8.712-22.816,0-31.506c8.69-8.712,22.816-8.712,31.506,0 C191.106,159.428,191.106,173.554,182.394,182.244z M182.394,93.119c-4.345,4.345-10.049,6.506-15.753,6.506 c-5.704,0-11.408-2.161-15.753-6.506c-8.712-8.69-8.712-22.816,0-31.506c8.69-8.712,22.816-8.712,31.506,0 C191.106,70.303,191.106,84.429,182.394,93.119z M311.469,467.287c-12.277,0-22.281-9.982-22.281-22.281 c0-12.299,10.004-22.281,22.281-22.281c12.277,0,22.281,9.982,22.281,22.281C333.75,457.305,323.746,467.287,311.469,467.287z M311.469,333.6c-12.277,0-22.281-9.982-22.281-22.281c0-12.299,10.004-22.281,22.281-22.281c12.277,0,22.281,9.982,22.281,22.281 C333.75,323.618,323.746,333.6,311.469,333.6z M378.313,400.444c-12.277,0-22.281-9.982-22.281-22.281 c0-12.299,10.004-22.281,22.281-22.281s22.281,9.982,22.281,22.281C400.594,390.462,390.59,400.444,378.313,400.444z M445.156,467.287c-12.277,0-22.281-9.982-22.281-22.281c0-12.299,10.004-22.281,22.281-22.281s22.281,9.982,22.281,22.281 C467.438,457.305,457.433,467.287,445.156,467.287z M445.156,333.6c-12.277,0-22.281-9.982-22.281-22.281 c0-12.299,10.004-22.281,22.281-22.281s22.281,9.982,22.281,22.281C467.438,323.618,457.433,333.6,445.156,333.6z"/> </g> </g> </svg> </a> </li> </ul> </div> <div class="right-content"> <div class="search-wrapper"> <div id="search-info" data-page="" data-app-id="W9DMM4OTH0" data-app-key="28a76a2b87be38db12283ebda329425a" data-app-index="learn_guides_production" data-app-uri="https://learn.adafruit.com"></div> <div id="search"></div> <i class="fa fa-search"></i> </div> </div> </div> </nav> </div> </header> <turbo-frame id="flash"></turbo-frame> <main id="main-content"> <div id="main-content-container" tabindex="-1"> <div class="toolbar-primary "> <div class="content"> <div class="left-content"> <div class="breadcrumbs" aria-label="Breadcrumbs"> <a href="https://learn.adafruit.com/"><i class='fa fa-home' role='img' title="Learn home"></i></a> <i class="fa fa-chevron-right separator"></i> <a href="/u/tcooper">tcooper</a> </div> </div> <div class="right-content"> </div> </div> </div> <article class="right-sidebar-layout"> <header class="sidebar"> <div class="title-bar"> <img alt="Image for user tcooper" class="user-image" src="https://secure.gravatar.com/avatar/bf059007b3539fbac83ae9c4ff59c370?s=100" /> <span> <h1>tcooper</h1> <div><a href="/u/tcooper">u/tcooper</a></div> </span> </div> </header> <section class="main"> <div class="guides"> <div class="guide-detailed-preview"> <div class="image-container"> <a href="/how-to-use-blockly-for-actions-on-adafruit-io"> <img data-src="https://cdn-learn.adafruit.com/guides/cropped_images/000/003/956/medium640/Screenshot_2024-02-21_154517.png?1708530389" aria-hidden="true" alt="An Action configured using Blockly on Adafruit IO, depicting a button triggering a buzzer." class="image-preview lazy" src="data:," /> </a> </div> <div class="details"> <a class="title" href="/how-to-use-blockly-for-actions-on-adafruit-io"> How to use Blockly for Actions on Adafruit IO </a> <div class="author"> By <a aria-label="Guide author" data-turbo="false" href="/u/tyeth"> <span class="name">Tyeth Gundry</span> </a> </div> <div class="description"> Our No-Code / Low-Code IoT platform Adafruit IO supports dynamically triggered Actions, but the forms were lacking some love. So we&#39;ve now improved the user-interface by integrating Blockly diagram based actions. </div> </div> </div> <div class="guide-detailed-preview"> <div class="image-container"> <a href="/welcome-to-adafruit-io"> <img data-src="https://cdn-learn.adafruit.com/guides/cropped_images/000/002/040/medium640/aio-cropped-table.png?1527707331" aria-hidden="true" alt="A laptop showing tan Adafruit IO graph" class="image-preview lazy" src="data:," /> </a> </div> <div class="details"> <a class="title" href="/welcome-to-adafruit-io"> Welcome to Adafruit IO </a> <div class="author"> By <a aria-label="Guide author" data-turbo="false" href="/u/brubell"> <span class="name">Brent Rubell</span> </a> </div> <div class="description"> This guide will get you up and running with Adafruit IO - the easiest way to get your project on the web. Learn what hardware is compatible with IO, how to interact with your data, troubleshooting your IO project, available client libraries, and about taking your project to the next-level with IO Plus. </div> </div> </div> <div class="guide-detailed-preview"> <div class="image-container"> <a href="/adabox007"> <img data-src="https://cdn-learn.adafruit.com/guides/cropped_images/000/001/942/medium640/AdaBox007.gif?1520546891" aria-hidden="true" alt="AdaBox 007" class="image-preview lazy" src="data:," /> </a> </div> <div class="details"> <a class="title" href="/adabox007"> AdaBox 007 </a> <div class="author"> By <a aria-label="Guide author" data-turbo="false" href="/u/tcooper"> <span class="name">Tyler Cooper</span> </a> </div> <div class="description"> This AdaBox is super sneaky with a Secret + Spy + Security theme. Everything in this box will teach you stuff they don&#39;t want you to know! You&#39;ll use your brains and hands to solve puzzles, send secret messages, bypass locks, and listen in on radio waves around you. </div> </div> </div> <div class="guide-detailed-preview"> <div class="image-container"> <a href="/adabox006"> <img data-src="https://cdn-learn.adafruit.com/guides/cropped_images/000/001/824/medium640/AdaBox006.jpg?1520545895" aria-hidden="true" alt="AdaBox 006" class="image-preview lazy" src="data:," /> </a> </div> <div class="details"> <a class="title" href="/adabox006"> AdaBox 006 </a> <div class="author"> By <a aria-label="Guide author" data-turbo="false" href="/u/tcooper"> <span class="name">Tyler Cooper</span> </a> </div> <div class="description"> Feeling the bite of the cold and wind outside? Why not slither indoors and snuggle up with your very own cuddly Python? What? A snake?! Yessssssss, this AdaBox is Python powered. </div> </div> </div> <div class="guide-detailed-preview"> <div class="image-container"> <a href="/adabox005"> <img data-src="https://cdn-learn.adafruit.com/guides/cropped_images/000/001/740/medium640/AdaBox005.jpg?1520545495" aria-hidden="true" alt="AdaBox 005" class="image-preview lazy" src="data:," /> </a> </div> <div class="details"> <a class="title" href="/adabox005"> AdaBox 005 </a> <div class="author"> By <a aria-label="Guide author" data-turbo="false" href="/u/tcooper"> <span class="name">Tyler Cooper</span> </a> </div> <div class="description"> You&#39;ve consumed four AdaBoxes - the equivalent of a delicious, nutritious meal of DIY electronics. And now it&#39;s time for dessert. Pour yourself some coffee (or a nice cold glass of milk) because it is finally time for Raspberry Pi. </div> </div> </div> <div class="guide-detailed-preview"> <div class="image-container"> <a href="/adabox004"> <img data-src="https://cdn-learn.adafruit.com/guides/cropped_images/000/001/626/medium640/AdaBox004_%28now%29.gif?1539715489" aria-hidden="true" alt="AdaBox 004" class="image-preview lazy" src="data:," /> </a> </div> <div class="details"> <a class="title" href="/adabox004"> AdaBox 004 </a> <div class="author"> By <a aria-label="Guide author" data-turbo="false" href="/u/tcooper"> <span class="name">Tyler Cooper</span> </a> </div> <div class="description"> Sit down, strap in, and pump your Feather ecosystem up to 11. The last of our Feather-focused AdaBoxes has all the ingredients for a remote controlled music player, a Zen-inducing meditation machine, or your very own Radio Free Adafruit that streams tunes through the internet. </div> </div> </div> <div class="guide-detailed-preview"> <div class="image-container"> <a href="/my-mini-race-car"> <img data-src="https://cdn-learn.adafruit.com/guides/cropped_images/000/001/660/medium640/IMG_0070_full.jpg?1515090250" aria-hidden="true" alt="My Mini Race Car" class="image-preview lazy" src="data:," /> </a> </div> <div class="details"> <a class="title" href="/my-mini-race-car"> My Mini Race Car </a> <div class="author"> By <a aria-label="Guide author" data-turbo="false" href="/u/johnpark"> <span class="name">John Park</span> </a> </div> <div class="description"> Zooooom! Now you can build and drive your own Mini Race Car using the Feather 32u4 Bluefruit LE microcontroller. Keep an eye on racetrack telemetry with the included HTU21D-F temperature &amp; humidity sensor breakout board. </div> </div> </div> <div class="guide-detailed-preview"> <div class="image-container"> <a href="/adabox003"> <img data-src="https://cdn-learn.adafruit.com/guides/cropped_images/000/001/553/medium640/AdaBox003_current.gif?1539621635" aria-hidden="true" alt="AdaBox 003" class="image-preview lazy" src="data:," /> </a> </div> <div class="details"> <a class="title" href="/adabox003"> AdaBox 003 </a> <div class="author"> By <a aria-label="Guide author" data-turbo="false" href="/u/tcooper"> <span class="name">Tyler Cooper</span> </a> </div> <div class="description"> If walls could talk. If fridges could email. If toasters could tweet. If garbage cans could blog. If sinks could post stories. If stoves could code. The Internet of Things can be in all the things. Adafruit, Digikey, and Nimbus the Friendly Cloud Entity are here to help you learn how to connect everything you need and nothing you don&#39;t. </div> </div> </div> <div class="guide-detailed-preview"> <div class="image-container"> <a href="/adabox002"> <img data-src="https://cdn-learn.adafruit.com/guides/cropped_images/000/001/482/medium640/AdaBox002_%28now%29.gif?1539716013" aria-hidden="true" alt="AdaBox 002" class="image-preview lazy" src="data:," /> </a> </div> <div class="details"> <a class="title" href="/adabox002"> AdaBox 002 </a> <div class="author"> By <a aria-label="Guide author" data-turbo="false" href="/u/tcooper"> <span class="name">Tyler Cooper</span> </a> </div> <div class="description"> With AdaBox 002, we are bringing you the fun and versatility of a small robot. Learn how to control your new robot friend with a phone and make it sing custom tunes. Learn how to make your new robot more intelligent and independent too! </div> </div> </div> <div class="guide-detailed-preview"> <div class="image-container"> <a href="/mqtt-adafruit-io-and-you"> <img data-src="https://cdn-learn.adafruit.com/guides/cropped_images/000/001/144/medium640/howtocomm.png?1520543631" aria-hidden="true" alt="MQTT, Adafruit IO &amp; You!" class="image-preview lazy" src="data:," /> </a> </div> <div class="details"> <a class="title" href="/mqtt-adafruit-io-and-you"> MQTT, Adafruit IO &amp; You! </a> <div class="author"> By <a aria-label="Guide author" data-turbo="false" href="/u/adafruit2"> <span class="name">lady ada</span> </a> </div> <div class="description"> The Internet of Things! The Internet of Things! THE INTERNET OF THINGS! OK now that I&#39;ve got your attention, lets talk about this INTERNET OF THINGS (IoT). IoT is this idea that, hey - my toaster! my car! my dog&#39;s collar! - all those things can be connected to the Internet and each other. </div> </div> </div> <div class="guide-detailed-preview"> <div class="image-container"> <a href="/adafruit-io-basics-neopixel-controller"> <img data-src="https://cdn-learn.adafruit.com/guides/cropped_images/000/000/807/medium640/2014-11-21_12.07.43.jpg?1535056986" aria-hidden="true" alt="Adafruit IO Basics: NeoPixel Controller" class="image-preview lazy" src="data:," /> </a> </div> <div class="details"> <a class="title" href="/adafruit-io-basics-neopixel-controller"> Adafruit IO Basics: NeoPixel Controller </a> <div class="author"> By <a aria-label="Guide author" data-turbo="false" href="/u/tcooper"> <span class="name">Tyler Cooper</span> </a> </div> <div class="description"> In this basic example of ways to interact with Adafruit IO, we use an Adafruit NeoPixel ring and control the RGB levels with three sliders on an AIO dashboard. </div> </div> </div> <div class="guide-detailed-preview"> <div class="image-container"> <a href="/wireless-inductive-power-night-light"> <video class="video-preview lazy" preload="auto" muted="muted" loop="loop" playsinline poster="https://cdn-learn.adafruit.com/guides/cropped_images/000/000/777/medium640thumb/2014-04-25_00.24.46.gif?1535568877" data-error="/assets/missing%2Fmissing.png" 'aria-hidden'=true> <data-src src="https://cdn-learn.adafruit.com/guides/cropped_images/000/000/777/medium640mp4/2014-04-25_00.24.46.mp4?1535568877"></data-src> <data-src src="https://cdn-learn.adafruit.com/guides/cropped_images/000/000/777/medium640webm/2014-04-25_00.24.46.webm?1535568877" type="video/webm; codecs=vp8,vorbis"></data-src> Your browser does not support the video tag. This links to the guide Wireless Inductive Power Night Light. </video> <img data-src="https://cdn-learn.adafruit.com/guides/cropped_images/000/000/777/medium640thumb/2014-04-25_00.24.46.gif?1535568877" aria-hidden="true" alt="Wireless Inductive Power Night Light" class="image-preview lazy" src="data:," /> </a> </div> <div class="details"> <a class="title" href="/wireless-inductive-power-night-light"> Wireless Inductive Power Night Light </a> <div class="author"> By <a aria-label="Guide author" data-turbo="false" href="/u/tcooper"> <span class="name">Tyler Cooper</span> </a> </div> <div class="description"> Create your own night light that harnesses the power of wireless energy. Change the brightness of the light by moving it away from the power module. </div> </div> </div> <div class="guide-detailed-preview"> <div class="image-container"> <a href="/diy-boost-calc"> <img data-src="https://cdn-learn.adafruit.com/guides/cropped_images/000/000/307/medium640/boostsch.png?1534968792" aria-hidden="true" alt="DIY DC/DC Boost Calculator" class="image-preview lazy" src="data:," /> </a> </div> <div class="details"> <a class="title" href="/diy-boost-calc"> DIY DC/DC Boost Calculator </a> <div class="author"> By <a aria-label="Guide author" data-turbo="false" href="/u/tcooper"> <span class="name">Tyler Cooper</span> </a> </div> <div class="description"> For many small projects, its cheaper and easier to DIY a boost converter than to buy a specialty chip. DIY converters are usually not as efficient but they&#39;re quick &amp; cheap! </div> </div> </div> <div class="guide-detailed-preview"> <div class="image-container"> <a href="/adjustable-breadboard-power-supply-kit"> <img data-src="https://cdn-learn.adafruit.com/guides/cropped_images/000/000/227/medium640/bbpsup_LRG.jpg?1534968155" aria-hidden="true" alt="Adjustable Breadboard Power Supply Kit" class="image-preview lazy" src="data:," /> </a> </div> <div class="details"> <a class="title" href="/adjustable-breadboard-power-supply-kit"> Adjustable Breadboard Power Supply Kit </a> <div class="author"> By <a aria-label="Guide author" data-turbo="false" href="/u/tcooper"> <span class="name">Tyler Cooper</span> </a> </div> <div class="description"> This project details the design of a very low dropout adjustable power supply. A good power supply is essential to electronic projects. While there are many existing designs for adjustable power supplies, this one makes improvements that make it more useful for hobby designs. </div> </div> </div> <div class="guide-detailed-preview"> <div class="image-container"> <a href="/all-about-leds"> <img data-src="https://cdn-learn.adafruit.com/guides/cropped_images/000/000/206/medium640/LEDrainbow.jpg?1534968137" aria-hidden="true" alt="All About LEDs" class="image-preview lazy" src="data:," /> </a> </div> <div class="details"> <a class="title" href="/all-about-leds"> All About LEDs </a> <div class="author"> By <a aria-label="Guide author" data-turbo="false" href="/u/tcooper"> <span class="name">Tyler Cooper</span> </a> </div> <div class="description"> This tutorial will cover those wonderful blinky things, LEDs. We&#39;re also going to cover how to calculate the current going through an LED and in the mean time introduce two important laws of electronics, Kirchhoff&#39;s Voltage Law and Ohm&#39;s Law. </div> </div> </div> </div> <div class="pagination"> <ul> <li class="active numbered-page"> <a href="#">1</a> </li> <li class=" numbered-page"> <a rel="next" href="/u/tcooper?guides=2">2</a> </li> <li> <a rel="next" href="/u/tcooper?guides=2">Next</a> </li> <li class="last-page"> <a href="/u/tcooper?guides=2">Last</a> </li> </ul> </div> </section> </article> </div> <div id="search-container"> <div class="toolbar-primary"> <div class="content"> <div class="left-content"> <div class="breadcrumbs"> <a href="https://learn.adafruit.com" aria-label="Home page"><i class='fa fa-home'></i></a> <i class="fa fa-chevron-right separator"></i> Search <i class="fa fa-chevron-right separator"></i> </div> </div> </div> </div> <div class="sub-header"> <div class="header-intro"> <h1 class="title">Search</h1> </div> <div class="header-main-content-wrapper"> <div class="header-main-content"> <div id="search-refinements" class="breakdown"> </div> </div> </div> </div> <div class="search-content left-sidebar-layout"> <div> <div class="facets-wrapper"> <h5 class="search-refinement-header">Categories</h5> <div id="search-categories"></div> </div> </div> <div> <div id="search-results" class="search-content-card-group"></div> <div id="search-pagination" class="pagination"></div> </div> </div> </div> <div id="remote-modal-wrapper"></div> <div id='main-content-overlay'></div> </main> <footer id="adafruit-footer"> <div class="footer-container"> <div class="application-support-link"> <div> <ul> <li> <a href="https://www.adafruit.com/contact_us">Contact Us</a> </li> <li> <a href="https://forums.adafruit.com/">Tech Support Forums</a> </li> <li> <a href="https://www.adafruit.com/faq">FAQs</a> </li> <li> <a href="https://www.adafruit.com/shippinginfo">Shipping &amp; Returns</a> </li> <li> <a href="https://www.adafruit.com/free">Freebies</a> </li> <li> <a href="https://www.adafruit.com/terms_of_service">Terms of Service</a> </li> <li> <a href="https://www.adafruit.com/privacy">Privacy &amp; Legal</a> </li> <li> <a href="https://www.adafruit.com/accessibility">Website Accessibility</a> </li> </ul> </div> <div> <ul> <li> <a href="https://www.adafruit.com/about">About Us</a> </li> <li> <a href="https://www.adafruit.com/press">Press</a> </li> <li> <a href="https://www.adafruit.com/educators">Educators</a> </li> <li> <a href="https://www.adafruit.com/distributors">Distributors</a> </li> <li> <a href="https://jobs.adafruit.com">Jobs</a> </li> <li> <a href="https://www.adafruit.com/category/14">Gift Cards</a> </li> </ul> </div> </div> <aside> <div class="quote">"Let the beauty of what you love be what you do"</div> <div class="quote-attribution"><a href="http://en.wikipedia.org/wiki/Rumi">Rumi</a></div> </aside> </div> <div class="footer-container bottom"> <a title="About Adafruit" id="footer-logo" href="https://learn.adafruit.com"> <img alt="Adafruit Logo" src="/logos/adafruit_logo_small.png?4293751367676314781" /> </a> <div class="social-links"> <a href="https://www.instagram.com/adafruit/" target="_blank" rel="noopener noreferrer" aria-label="Adafruit on Instagram"><i class="fa fa-instagram" aria-hidden="true"></i></a> <a href="https://twitter.com/adafruit/" target="_blank" rel="noopener noreferrer" aria-label="Adafruit on Twitter"><i class="fa fa-twitter" aria-hidden="true"></i></a> <a class="mastodon-logo" href="https://mastodon.cloud/@adafruit" target="_blank" rel="noopener noreferrer" aria-label="Adafruit on Mastodon"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 216.4144 232.00976"><path class="logo" d="M211.80734 139.0875c-3.18125 16.36625-28.4925 34.2775-57.5625 37.74875-15.15875 1.80875-30.08375 3.47125-45.99875 2.74125-26.0275-1.1925-46.565-6.2125-46.565-6.2125 0 2.53375.15625 4.94625.46875 7.2025 3.38375 25.68625 25.47 27.225 46.39125 27.9425 21.11625.7225 39.91875-5.20625 39.91875-5.20625l.8675 19.09s-14.77 7.93125-41.08125 9.39c-14.50875.7975-32.52375-.365-53.50625-5.91875C9.23234 213.82 1.40609 165.31125.20859 116.09125c-.365-14.61375-.14-28.39375-.14-39.91875 0-50.33 32.97625-65.0825 32.97625-65.0825C49.67234 3.45375 78.20359.2425 107.86484 0h.72875c29.66125.2425 58.21125 3.45375 74.8375 11.09 0 0 32.975 14.7525 32.975 65.0825 0 0 .41375 37.13375-4.59875 62.915" fill="currentColor"/><path d="M177.50984 80.077v60.94125h-24.14375v-59.15c0-12.46875-5.24625-18.7975-15.74-18.7975-11.6025 0-17.4175 7.5075-17.4175 22.3525v32.37625H96.20734V85.42325c0-14.845-5.81625-22.3525-17.41875-22.3525-10.49375 0-15.74 6.32875-15.74 18.7975v59.15H38.90484V80.077c0-12.455 3.17125-22.3525 9.54125-29.675 6.56875-7.3225 15.17125-11.07625 25.85-11.07625 12.355 0 21.71125 4.74875 27.8975 14.2475l6.01375 10.08125 6.015-10.08125c6.185-9.49875 15.54125-14.2475 27.8975-14.2475 10.6775 0 19.28 3.75375 25.85 11.07625 6.36875 7.3225 9.54 17.22 9.54 29.675" fill="#000"/></svg></a> <a href="https://www.facebook.com/adafruitindustries" target="_blank" rel="noopener noreferrer" aria-label="Adafruit on Facebook"><i class="fa fa-facebook" aria-hidden="true"></i></a> <a href="https://www.youtube.com/adafruit" target="_blank" rel="noopener noreferrer" aria-label="Adafruit on YouTube"><i class="fa fa-youtube" aria-hidden="true"></i></a> <a href="https://github.com/adafruit" target="_blank" rel="noopener noreferrer" aria-label="Adafruit on Github"><i class="fa fa-github" aria-hidden="true"></i></a> <a class="tiktok-logo" aria-label="Adafruit on TikTok" href="https://www.tiktok.com/@adafruit" target="_blank" rel="noopener noreferrer"><svg viewBox="3 2 20 22" xmlns="http://www.w3.org/2000/svg"><path class="logo" d="M19.8059 7.50695C18.7771 7.50695 17.8278 7.16612 17.0655 6.59113C16.1912 5.93198 15.5631 4.9651 15.3412 3.85069C15.2863 3.57534 15.2567 3.29119 15.2539 3H12.3149V11.0308L12.3114 15.4297C12.3114 16.6057 11.5455 17.6029 10.4839 17.9536C10.1758 18.0553 9.8431 18.1036 9.49663 18.0846C9.05438 18.0603 8.63995 17.9268 8.27975 17.7113C7.51322 17.2529 6.99351 16.4212 6.97942 15.4698C6.95724 13.9829 8.15933 12.7706 9.64522 12.7706C9.93852 12.7706 10.2202 12.8185 10.4839 12.9054V10.7104V9.92134C10.2058 9.88015 9.92268 9.85867 9.63641 9.85867C8.01004 9.85867 6.48894 10.5347 5.40164 11.7526C4.57982 12.6731 4.08687 13.8473 4.01082 15.0786C3.91117 16.6962 4.50306 18.2339 5.65093 19.3683C5.81959 19.5349 5.9967 19.6895 6.1819 19.8321C7.16604 20.5894 8.36919 21 9.63641 21C9.92268 21 10.2058 20.9789 10.4839 20.9377C11.6677 20.7623 12.7599 20.2204 13.6219 19.3683C14.681 18.3215 15.2662 16.9318 15.2726 15.4526L15.2574 8.88369C15.7627 9.27347 16.3152 9.596 16.9081 9.84635C17.8303 10.2354 18.8081 10.4326 19.8144 10.4322V8.29814V7.50625C19.8151 7.50695 19.8066 7.50695 19.8059 7.50695Z" fill="currentColor"/></svg></a> <a class="tumblr-logo" aria-label="Adafruit on Tumblr" href="https://adafruit.tumblr.com/" target="_blank" rel="noopener noreferrer"><i class="fa fa-tumblr" aria-hidden="true"></i></a> <a class="threads-logo" href="https://www.threads.net/@adafruit" target="_blank" rel="noopener noreferrer" aria-label="Adafruit on Threads"><span aria-hidden="true"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 448 512"><path fill="currentColor" d="M331.5 235.7c2.2 .9 4.2 1.9 6.3 2.8c29.2 14.1 50.6 35.2 61.8 61.4c15.7 36.5 17.2 95.8-30.3 143.2c-36.2 36.2-80.3 52.5-142.6 53h-.3c-70.2-.5-124.1-24.1-160.4-70.2c-32.3-41-48.9-98.1-49.5-169.6V256v-.2C17 184.3 33.6 127.2 65.9 86.2C102.2 40.1 156.2 16.5 226.4 16h.3c70.3 .5 124.9 24 162.3 69.9c18.4 22.7 32 50 40.6 81.7l-40.4 10.8c-7.1-25.8-17.8-47.8-32.2-65.4c-29.2-35.8-73-54.2-130.5-54.6c-57 .5-100.1 18.8-128.2 54.4C72.1 146.1 58.5 194.3 58 256c.5 61.7 14.1 109.9 40.3 143.3c28 35.6 71.2 53.9 128.2 54.4c51.4-.4 85.4-12.6 113.7-40.9c32.3-32.2 31.7-71.8 21.4-95.9c-6.1-14.2-17.1-26-31.9-34.9c-3.7 26.9-11.8 48.3-24.7 64.8c-17.1 21.8-41.4 33.6-72.7 35.3c-23.6 1.3-46.3-4.4-63.9-16c-20.8-13.8-33-34.8-34.3-59.3c-2.5-48.3 35.7-83 95.2-86.4c21.1-1.2 40.9-.3 59.2 2.8c-2.4-14.8-7.3-26.6-14.6-35.2c-10-11.7-25.6-17.7-46.2-17.8H227c-16.6 0-39 4.6-53.3 26.3l-34.4-23.6c19.2-29.1 50.3-45.1 87.8-45.1h.8c62.6 .4 99.9 39.5 103.7 107.7l-.2 .2zm-156 68.8c1.3 25.1 28.4 36.8 54.6 35.3c25.6-1.4 54.6-11.4 59.5-73.2c-13.2-2.9-27.8-4.4-43.4-4.4c-4.8 0-9.6 .1-14.4 .4c-42.9 2.4-57.2 23.2-56.2 41.8l-.1 .1z"/></svg></span></a> <a class="discord-logo" aria-label="Adafruit on Discord" href="https://adafru.it/discord" target="_blank" rel="noopener noreferrer"><svg style="height: 1em; margin-bottom: -0.15em" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 127.14 96.36"><path fill="currentColor" d="M107.7,8.07A105.15,105.15,0,0,0,81.47,0a72.06,72.06,0,0,0-3.36,6.83A97.68,97.68,0,0,0,49,6.83,72.37,72.37,0,0,0,45.64,0,105.89,105.89,0,0,0,19.39,8.09C2.79,32.65-1.71,56.6.54,80.21h0A105.73,105.73,0,0,0,32.71,96.36,77.7,77.7,0,0,0,39.6,85.25a68.42,68.42,0,0,1-10.85-5.18c.91-.66,1.8-1.34,2.66-2a75.57,75.57,0,0,0,64.32,0c.87.71,1.76,1.39,2.66,2a68.68,68.68,0,0,1-10.87,5.19,77,77,0,0,0,6.89,11.1A105.25,105.25,0,0,0,126.6,80.22h0C129.24,52.84,122.09,29.11,107.7,8.07ZM42.45,65.69C36.18,65.69,31,60,31,53s5-12.74,11.43-12.74S54,46,53.89,53,48.84,65.69,42.45,65.69Zm42.24,0C78.41,65.69,73.25,60,73.25,53s5-12.74,11.44-12.74S96.23,46,96.12,53,91.08,65.69,84.69,65.69Z"/></svg></a> <a class="bluesky-logo" aria-label="Adafruit on Bluesky" href="https://bsky.app/profile/adafruit.com" target="_blank" rel="noopener noreferrer"><svg style="height: 1em; margin-bottom: -0.15em" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><path fill="currentColor" d="M111.8 62.2C170.2 105.9 233 194.7 256 242.4c23-47.6 85.8-136.4 144.2-180.2c42.1-31.6 110.3-56 110.3 21.8c0 15.5-8.9 130.5-14.1 149.2C478.2 298 412 314.6 353.1 304.5c102.9 17.5 129.1 75.5 72.5 133.5c-107.4 110.2-154.3-27.6-166.3-62.9l0 0c-1.7-4.9-2.6-7.8-3.3-7.8s-1.6 3-3.3 7.8l0 0c-12 35.3-59 173.1-166.3 62.9c-56.5-58-30.4-116 72.5-133.5C100 314.6 33.8 298 15.7 233.1C10.4 214.4 1.5 99.4 1.5 83.9c0-77.8 68.2-53.4 110.3-21.8z"/></svg> </a> </div> <div class="footer-messaging"> <a href="https://www.adafruit.com/about">A Minority and Woman-owned Business Enterprise (M/WBE)</a> </div> </div> </footer> </div> </div> </body> </html>

Pages: 1 2 3 4 5 6 7 8 9 10