adafruit (Posts tagged i2c)

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rel="canonical" href="https://www.tumblr.com/adafruit/tagged/i2c" /></head> <body data-urlencoded-name="adafruit" class="regular index-page display-related-posts">  <h1 style="display: none;">adafruit (Posts tagged i2c)</h1> <div class="app-nag"> <div class="app-nag-header clearfix"> <div class="app-nag-icon"> <div class="app-nag-icon-ios"> <svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px" viewBox="0 0 1024 1024" enable-background="new 0 0 1024 1024" xml:space="preserve"> <path fill="#36465D" d="M1024,771c0,139.2-113.8,253-253,253H253C113.8,1024,0,910.2,0,771V253C0,113.8,113.8,0,253,0h518 c139.2,0,253,113.8,253,253V771z"/> <path fill="none" stroke="#FFF100" stroke-width="4" stroke-miterlimit="10" d="M463.9,209.4"/> <path opacity="0.6" fill="#231F20" d="M628.1,681c8.2,0,17.1-1.2,25.8-3.3V530.3h111.6V401.8h-68.6V473H585.4v162.4 C586,676.3,609.1,681,628.1,681z M654.4,250.5h-68.6v94h68.6V250.5z 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C586,676.3,609.1,681,628.1,681z M654.4,250.5h-68.6v94h68.6V250.5z M754.3,722.9c-12.7,7.1-28.9,12.4-44.3,14.5l11.4,33.8 c-20.5,27-71.4,45.5-118.1,46.3c-1.6,0-3.1,0-4.7,0c0,0,0,0,0,0c-32.5,0-59.5-5.7-81.9-15.3c26.2,40,72.7,72.6,150.5,72.6c0,0,0,0,0,0c1.6,0,3.1,0,4.7,0c46.6-0.8,97.6-19.4,118.1-46.3L754.3,722.9z"></path> <path fill="none" stroke="#FFF100" stroke-width="4" stroke-miterlimit="10" d="M355,359.5"></path> <path fill="#36465D" d="M577.5,830.6c65.1,0,129.7-23.2,151-51.3l4.3-5.6l-40.4-119.7c-0.4-1.1-1.4-1.9-2.6-1.9h-7.6h-3.5l-79.1,0 c-1.2,0-2.3-0.8-2.6-2c-1.1-4-1.7-8.9-1.8-14.9V489c0-1.5,1.2-2.7,2.7-2.7h106.1c1.5,0,2.7-1.2,2.7-2.7V333.8c0-1.5-1.2-2.7-2.7-2.7 H598.4c-1.5,0-2.7-1.2-2.7-2.7V182.5c0-1.5-1.2-2.7-2.7-2.7h-82.6h-28.9h-73.8c-13.3,0-28.5,9.8-30.8,28 c-9.3,75.3-43.8,120.5-108.7,142.2l-7.2,2.4c-1.1,0.4-1.9,1.4-1.9,2.6v128.6c0,1.5,1.2,2.7,2.7,2.7h50.4h0h15.9c0,0,0,120,0,158.3 C328.1,771,415.7,830.6,577.5,830.6z M701.6,769.5c-20.3,19.5-62,34.1-102,34.7c-1.5,0-3,0-4.5,0h0 c-131.5,0-166.6-100.4-166.6-159.7V462.3c0-1.5-1.2-2.7-2.7-2.7h-63.6c-1.5,0-2.7-1.2-2.7-2.7v-83c0-1.1,0.7-2.1,1.7-2.5 c68-26.5,105.9-79,115.9-160.3c0.6-4.5,4.3-4.6,4.3-4.6h84.9c1.5,0,2.7,1.2,2.7,2.7v145.9c0,1.5,1.2,2.7,2.7,2.7h105.7 c1.5,0,2.7,1.2,2.7,2.7v96.4c0,1.5-1.2,2.7-2.7,2.7H571.3c-1.5,0-2.7,1.2-2.7,2.7l0,173.2c0.6,39,19.5,58.8,56.1,58.8 c14.7,0,31.6-3.4,47.1-9.3c1.4-0.6,3,0.2,3.5,1.6l27,80C702.6,767.7,702.4,768.8,701.6,769.5z"></path> <path opacity="0.5" fill="#2D3F54" d="M328.1,528.9h73.8v-40.2c0-1.3-1.1-2.4-2.4-2.4h-71.4V528.9z"></path> </svg> </div> </div> <div class="app-nag-ratings"> <svg width="181px" height="30px" viewBox="0 0 181 30" version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"> <g stroke="none" stroke-width="1" fill="none" fill-rule="evenodd"> <path d="M15.8,25.2 L6.1,29.8 L7.5,19.2 L0.1,11.4 L10.6,9.5 L15.8,0 L20.9,9.5 L31.4,11.4 L24,19.2 L25.4,29.8 L15.8,25.2 Z" fill="#FFC00E"></path> <path d="M52.8,25.2 L43.1,29.8 L44.5,19.2 L37.1,11.4 L47.6,9.5 L52.8,0 L57.9,9.5 L68.4,11.4 L61,19.2 L62.4,29.8 L52.8,25.2 Z" fill="#FFC00E"></path> <path d="M89.8,25.2 L80.1,29.8 L81.5,19.2 L74.1,11.4 L84.6,9.5 L89.8,0 L94.9,9.5 L105.4,11.4 L98,19.2 L99.4,29.8 L89.8,25.2 Z" fill="#FFC00E"></path> <path d="M126.8,25.2 L117.1,29.8 L118.5,19.2 L111.1,11.4 L121.6,9.5 L126.8,0 L131.9,9.5 L142.4,11.4 L135,19.2 L136.4,29.8 L126.8,25.2 Z" fill="#FFC00E"></path> <path d="M163.8,25.2 L154.1,29.8 L155.5,19.2 L148.1,11.4 L158.6,9.5 L163.8,0 L168.9,9.5 L179.4,11.4 L172,19.2 L173.4,29.8 L163.8,25.2 Z" fill="#E7E7E7"></path> <path d="M163.3,25.1 L154.1,29.8 L155.5,19.2 L148.1,11.4 L158.6,9.5 L163.3,0.9 L163.3,25.1 Z" fill="#FFC00E"></path> </g> </svg> <div class="app-nag-ratings-text app-nag-ratings-text-android"> 1.5M ratings </div> <div class="app-nag-ratings-text app-nag-ratings-text-ios"> 277k ratings </div> </div> <div class="app-nag-close-button"> <svg width="15px" height="15px" viewBox="0 0 30 30" version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"> <g stroke="none" stroke-width="1" fill="none" fill-rule="evenodd"> <path d="M12.510351,14.6860639 L0,27.1964147 L2.175713,29.3721278 L14.686064,16.8617771 L27.196415,29.3721278 L29.372128,27.1964147 L16.861777,14.6860639 L29.372128,2.1757132 L27.196415,0 L14.686064,12.5103507 L2.175713,0 L0,2.1757132 L12.510351,14.6860639 L12.510351,14.6860639 Z" fill="#D3D3D3"></path> </g> </svg> </div> </div> <div class="app-nag-body"> <h2 class="app-nag-callout">See, that’s what the app is perfect for.</h2> <a class="app-nag-large-button app-nag-app-store-link button blue">Sounds perfect</a> <a class="app-nag-large-button app-nag-app-store-deny">Wahhhh, I don’t wanna</a> </div> </div> <section id="page" class="h-feed"> <div class="header-wrapper avatar-style-circle"> <header id="header" class="top-blog-header"> <div class="header-image-wrapper "> <a href="/" class="header-image parallax cover " 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by Limor & Phillip - no bots, all posts are from either ladyada or pt, blame them :) </span> </div> </div> </header> </div> <div class="nav-wrapper nav-responsive"> <nav class="nav-menu"> <ul class="inline-nav"> <li class="nav-item nav-item--posts"> <a href="/" class="label ">Posts</a> </li> <li class="nav-item nav-item--likes"> <a href="/likes" class="label ">Likes</a> </li> <li class="nav-item nav-item--following"> <a href="/following" class="label ">Following</a> </li> <li class="nav-item nav-item--ask"> <a href="/ask" class="label ">ask an engineer</a> </li> <li class="nav-item nav-item--submit"> <a href="/submit" class="label ">show and tell</a> </li> <li class="nav-item nav-item--archive"> <a href="/archive" class="label external-page">Archive</a> </li> </ul> </nav> </div> <section id="posts" class="content clearfix avatar-style-circle show-nav"> <div class="container"> <div class="main"> <article class="text not-page post-778052164394385408 " data-post-id="778052164394385408" > <div class="post-wrapper clearfix h-entry"> <header class="post-header "> </header> <section class="post"> <div class="post-content"> <div class="body-text e-content"><figure class="tmblr-full" data-orig-height="1080" data-orig-width="1920" data-npf="{"type":"video","provider":"tumblr","url":"https://va.media.tumblr.com/tumblr_st5a62vdA01was4p5_720.mp4","media":{"url":"https://va.media.tumblr.com/tumblr_st5a62vdA01was4p5_720.mp4","type":"video/mp4","width":1920,"height":1080},"poster":[{"url":"https://64.media.tumblr.com/tumblr_st5a62vdA01was4p5_frame1.jpg","type":"image/jpeg","width":1920,"height":1080}],"filmstrip":{"url":"https://64.media.tumblr.com/previews/tumblr_st5a62vdA01was4p5_filmstrip.jpg","type":"image/jpeg","width":2000,"height":112}}"><video controls="controls" autoplay="autoplay" playsinline="playsinline" muted="muted" poster="https://64.media.tumblr.com/tumblr_st5a62vdA01was4p5_frame1.jpg"><source src="https://va.media.tumblr.com/tumblr_st5a62vdA01was4p5_720.mp4" type="video/mp4" /></video></figure><p>Solenoids go clicky-clacky 🔩🔊🤖</p><p>We’re testing out an I2C-to-solenoid driver today. It uses an MCP23017 expander. We like this particular chip for this usage because it has push-pull outputs, making it ideal for driving our N-channel FETs and flyback diodes. The A port connects to the 8 drivers, while the B port remains available for other GPIO purposes. For this demo, whenever we ‘touch’ a pin on port B to ground, the corresponding solenoid triggers provide an easy way to check speed and power usage.</p></div> </div> <section class="inline-meta post-extra"> </section> <section class="inline-meta post-extra has-tags"> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/solenoid">solenoid</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/electronics">electronics</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/i2c">i2c</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/mcp23017">mcp23017</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/hardwarehacking">hardwarehacking</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/maker">maker</a> <a class="meta-item tag-link p-category" 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href="https://adafruit.tumblr.com/post/778052164394385408/solenoids-go-clicky-clacky-were-testing-out" title="1 week ago" class="meta-item post-date">Mar 14th, 2025</a><time class="dt-published" datetime="2025-03-14 23:12:45"></time> </div> </section> <section class="post-controls"> <div class="controls-wrapper"> <div class="control share-control"> <nav class="pop"> <a href="#" class="share selector"></a> <div class="pop-menu share-menu south" id="share_778052164394385408"> <ul> <li class="open-in-app"><a href="#" class="share-item open-in-app" data-post="778052164394385408">Open in app</a></li> <li><a href="https://facebook.com/sharer.php?u=https%3A%2F%2Fadafruit.tumblr.com%2Fpost%2F778052164394385408%2Fsolenoids-go-clicky-clacky-were-testing-out&t=" class="share-item facebook" target="_blank">Facebook</a></li> <li><a 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data-big-photo="https://64.media.tumblr.com/e5710755dfee80c2430b53d2acf54c8f/a5b6a832319bc975-20/s1280x1920/585df75205d4936d4824f550c13c8128b07349ac.jpg" data-big-photo-height="1350" data-big-photo-width="1030"><img class="post_media_photo image" src="https://64.media.tumblr.com/e5710755dfee80c2430b53d2acf54c8f/a5b6a832319bc975-20/s1280x1920/585df75205d4936d4824f550c13c8128b07349ac.jpg" srcset="https://64.media.tumblr.com/e5710755dfee80c2430b53d2acf54c8f/a5b6a832319bc975-20/s75x75_c1/cec0e06aeb4be13fdba4746eb3b917ee8d5b820f.jpg 75w, https://64.media.tumblr.com/e5710755dfee80c2430b53d2acf54c8f/a5b6a832319bc975-20/s100x200/61b7acce9a342d45e541b3eda5e9af5e92e14291.jpg 100w, https://64.media.tumblr.com/e5710755dfee80c2430b53d2acf54c8f/a5b6a832319bc975-20/s250x400/4dd64b65d139696378e5b7a0d163b124bc215b8c.jpg 250w, https://64.media.tumblr.com/e5710755dfee80c2430b53d2acf54c8f/a5b6a832319bc975-20/s400x600/6e7fa2f2dfa3c896d5905be789adf84a1f9aab57.jpg 400w, https://64.media.tumblr.com/e5710755dfee80c2430b53d2acf54c8f/a5b6a832319bc975-20/s500x750/0be4a22d1396a71e163f3ded79f81cbb4e236e5e.jpg 500w, https://64.media.tumblr.com/e5710755dfee80c2430b53d2acf54c8f/a5b6a832319bc975-20/s540x810/862eacb891c8441791a79d634a76a456647714a1.jpg 540w, https://64.media.tumblr.com/e5710755dfee80c2430b53d2acf54c8f/a5b6a832319bc975-20/s640x960/b050614b18acba28da5c4d3a2dab5aa3c6a64b82.jpg 640w, https://64.media.tumblr.com/e5710755dfee80c2430b53d2acf54c8f/a5b6a832319bc975-20/s1280x1920/585df75205d4936d4824f550c13c8128b07349ac.jpg 1030w" sizes="(max-width: 1030px) 100vw, 1030px" alt="image"></a></figure></div></div><p>BMI323 IMU breakout ⚙️🔍</p><p>We have a project we’re working on with a BMI323 (<a href="https://www.digikey.com/en/product-highlight/b/bosch-sensortec/bmi323-inertial-measurement-unit">https://www.digikey.com/en/product-highlight/b/bosch-sensortec/bmi323-inertial-measurement-unit</a>) chip. Since this is our first time using the sensor, we decided to make a breakout for it! This chip has fast sample rates and an I2C/I3C/SPI interface. After we explore this chip, maybe we’ll do an EYE ON NPI about it!</p></div> </div> <section class="inline-meta post-extra"> </section> <section class="inline-meta post-extra has-tags"> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/bmi323">bmi323</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/imu">imu</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/motiontracking">motiontracking</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/sensor">sensor</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/electronics">electronics</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/breakoutboard">breakoutboard</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/i2c">i2c</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/spi">spi</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/i3c">i3c</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/pcbdesign">pcbdesign</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/embedded">embedded</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/hardware">hardware</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/engineering">engineering</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/opensource">opensource</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/tech">tech</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/robotics">robotics</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/diy">diy</a> <a 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data-npf='{"type":"video","provider":"tumblr","url":"https://va.media.tumblr.com/tumblr_sonn4nib3W1was4p5.mp4","media":{"url":"https://va.media.tumblr.com/tumblr_sonn4nib3W1was4p5.mp4","type":"video/mp4","width":1280,"height":720},"poster":[{"url":"https://64.media.tumblr.com/tumblr_sonn4nib3W1was4p5_frame1.jpg","type":"image/jpeg","width":1280,"height":720}],"filmstrip":{"url":"https://64.media.tumblr.com/previews/tumblr_sonn4nib3W1was4p5_filmstrip.jpg","type":"image/jpeg","width":2000,"height":112}}'><video controls="controls" autoplay="autoplay" playsinline="playsinline" muted="muted" poster="https://64.media.tumblr.com/tumblr_sonn4nib3W1was4p5_frame1.jpg"><source src="https://va.media.tumblr.com/tumblr_sonn4nib3W1was4p5.mp4" type="video/mp4"></source></video></figure><p>Metro RP2350 is wrappin’ up testing ✨🐢</p><p>This week we got our Metro RP2350 boards </p><p><a href="https://blog.adafruit.com/2024/11/11/metro-rp2350-now-with-bigger-better-rp2350b/">https://blog.adafruit.com/2024/11/11/metro-rp2350-now-with-bigger-better-rp2350b/</a></p><p>back and after fixing the pin direction and rerouting </p><div class="npf-link-block has-poster"><a target="_blank" href="https://www.instagram.com/adafruit/p/DC2U7mdyf9W"><div class="poster" style="background-image:url(https://64.media.tumblr.com/c29f8cd28413d067f01dcb38de93b954/a1ce85fa61e44cda-02/s640x960/ca5ae5261ab0db6941fcd1ff4d2e442209fb25dc.jpg)"><div class="title">adafruit on Instagram: "Metro RP2350 take 5 🔄🌟🤞 Sometimes mistakes are made in prototyping; that's why they're prototypes. The error in rev</div></div><div class="bottom"><div class="description"> 241 likes, 0 comments - adafruit on November 26, 2024: "Metro RP2350 take 5 🔄🌟🤞 Sometimes mistakes are made in prototyping; that's why they </div><div class="site-name"> Instagram </div></div></a></div><p>the whole thing, it came up and pretty much works perfectly! Just one component needed a swap - we were able to test all GPIO, analog inputs, MicroSD slot, PSRAM, LEDs & NeoPixel, user button, I2C/SPI/UART, aaand power supplies. The 5V supply is great, we got a nice clean 5V out at 2A+ from 12V DC in. The last thing to check is the HSTX port, which gives us DVI access, and it works, thanks to this festive turtle demo! </p><div class="npf-link-block has-poster"><a target="_blank" href="https://learn.adafruit.com/circuitpython-turtle-graphics"><div class="poster" style="background-image:url(https://64.media.tumblr.com/6b29f0320b7bbab8d0eb7b18cfa71119/a1ce85fa61e44cda-6d/s1280x1920/39e96f4aa9389d8d163cf73bab431dca2aec3754.jpg)"><div class="title">CircuitPython Turtle Graphics</div></div><div class="bottom"><div class="description"> This guide documents the new adafruit_turtle library to create awesome vector graphic designs on your PyPortal, PyBadge, PyGamer, and simila </div><div class="site-name"> Adafruit Learning System </div></div></a></div><p>We’re aiming to get this into the shop before the end of the year, wouldn’t that be smashing?</p></div> </div> <section class="inline-meta post-extra"> </section> <section class="inline-meta post-extra has-tags"> <a class="meta-item tag-link 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class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/makersgonnamake">makersgonnamake</a> </section> </section> <section class="panel"> <footer class="post-footer"> <section class="panel"> <section class="inline-meta date-notes"> <div class="date-note-wrapper"> <span> <a href="https://adafruit.tumblr.com/post/770144301195968512/adafruit-on-instagram-metro-rp2350-take-5#notes" class="meta-item post-notes">30 notes</a> </span> <a href="https://adafruit.tumblr.com/post/770144301195968512/adafruit-on-instagram-metro-rp2350-take-5" title="3 months ago" class="meta-item post-date">Dec 17th, 2024</a><time class="dt-published" datetime="2024-12-17 15:20:39"></time> </div> </section> <section class="post-controls"> <div class="controls-wrapper"> <div class="control share-control"> <nav class="pop"> <a href="#" class="share selector"></a> <div class="pop-menu share-menu south" id="share_770144301195968512"> <ul> <li class="open-in-app"><a href="#" class="share-item 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https://64.media.tumblr.com/164cc3338c64b2003208620730d8372b/91951f79bd1521c9-7a/s500x750/7217b70e2ab891f65c12eaeb52d7a29a374b0955.jpg 500w, https://64.media.tumblr.com/164cc3338c64b2003208620730d8372b/91951f79bd1521c9-7a/s540x810/b9a2efb1f72af618772669c75556b38690b67fcc.jpg 540w, https://64.media.tumblr.com/164cc3338c64b2003208620730d8372b/91951f79bd1521c9-7a/s640x960/47150b5f53dd8473dfced8f9368e76476c1d25d6.jpg 640w, https://64.media.tumblr.com/164cc3338c64b2003208620730d8372b/91951f79bd1521c9-7a/s1280x1920/aa0dd3bd1ffd24f0c446fdf6d38f4e9eb101cfd1.jpg 1080w" sizes="(max-width: 1080px) 100vw, 1080px" alt="image"></a></figure></div></div><p>Got lots and lots of solenoids?</p><p>We were chatting with a customer and realized we need a better solution for customers with many solenoids or other high-current on/off loads. This breakout will make it easy to control and power many inductive or high-current loads. An mcp23017 </p><p><a href="https://www.digikey.com/short/nf4pn2rc">https://www.digikey.com/short/nf4pn2rc</a></p><p>expander over I2C provides 8 output pins, each connected to an AO3406 N-Channel FET </p><p><a href="https://www.digikey.com/short/rh398zbh">https://www.digikey.com/short/rh398zbh</a></p><p>with a 1N4007 flyback diode. </p><p><a href="https://www.digikey.com/short/343h9890">https://www.digikey.com/short/343h9890</a></p><p>Terminal blocks allow for quick wiring to power and each high current output, including one chunky block for the power input. The other 8 expander I/Os are exposed if you want buttons or simple LEDs. The breakouts have stemma QT for fast chaining/control over I2C.</p></div> </div> <section class="inline-meta post-extra"> </section> <section class="inline-meta post-extra has-tags"> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/solenoids">solenoids</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/electronicsprojects">electronicsprojects</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/highcurrent">highcurrent</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/i2c">i2c</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/mcp23017">mcp23017</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/nchannelfet">nchannelfet</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/diycircuits">diycircuits</a> <a class="meta-item tag-link p-category" 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href="https://adafruit.tumblr.com/post/769857499754070016/got-lots-and-lots-of-solenoids-we-were-chatting#notes" class="meta-item post-notes">14 notes</a> </span> <a href="https://adafruit.tumblr.com/post/769857499754070016/got-lots-and-lots-of-solenoids-we-were-chatting" title="3 months ago" class="meta-item post-date">Dec 14th, 2024</a><time class="dt-published" datetime="2024-12-14 11:22:04"></time> </div> </section> <section class="post-controls"> <div class="controls-wrapper"> <div class="control share-control"> <nav class="pop"> <a href="#" class="share selector"></a> <div class="pop-menu share-menu south" id="share_769857499754070016"> <ul> <li class="open-in-app"><a href="#" class="share-item open-in-app" data-post="769857499754070016">Open in app</a></li> <li><a href="https://facebook.com/sharer.php?u=https%3A%2F%2Fadafruit.tumblr.com%2Fpost%2F769857499754070016%2Fgot-lots-and-lots-of-solenoids-we-were-chatting&t=" class="share-item facebook" target="_blank">Facebook</a></li> 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Dusting off designs from 2021-2023 with help from ChatGPT for repetitive firmware tasks. Featured: VCNL4200 & LPS28 drivers. Plus, The Great Search is all about tubing for ported pressure sensors!</p></div> </div> <section class="inline-meta post-extra"> </section> <section class="inline-meta post-extra has-tags"> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/adafruit">adafruit</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/digikey">digikey</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/deskofladyada">deskofladyada</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/VCNL4200">VCNL4200</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/openai">openai</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/cursor">cursor</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/lp28">lp28</a> <a class="meta-item tag-link p-category" 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class="npf_row"><div class="npf_col"><figure class="tmblr-full"><a class="post_media_photo_anchor" data-big-photo="https://64.media.tumblr.com/0fa9a0bc2d92eed635d9dcb33e5343d8/a13f2dc60f2905f3-f2/s1280x1920/660c6482c9f8c3d0643537fe378a27d917f0f0a9.jpg" data-big-photo-height="1080" data-big-photo-width="1080"><img class="post_media_photo image" src="https://64.media.tumblr.com/0fa9a0bc2d92eed635d9dcb33e5343d8/a13f2dc60f2905f3-f2/s1280x1920/660c6482c9f8c3d0643537fe378a27d917f0f0a9.jpg" srcset="https://64.media.tumblr.com/0fa9a0bc2d92eed635d9dcb33e5343d8/a13f2dc60f2905f3-f2/s75x75_c1/2a5086bf47b9b7188f2db237857c50fd92b6713c.jpg 75w, https://64.media.tumblr.com/0fa9a0bc2d92eed635d9dcb33e5343d8/a13f2dc60f2905f3-f2/s100x200/8ea0558024c22d800e54d06c4ced7f32cda77d82.jpg 100w, https://64.media.tumblr.com/0fa9a0bc2d92eed635d9dcb33e5343d8/a13f2dc60f2905f3-f2/s250x400/2d345d0601a20aab4dc527d561f6d3591fd97fcf.jpg 250w, https://64.media.tumblr.com/0fa9a0bc2d92eed635d9dcb33e5343d8/a13f2dc60f2905f3-f2/s400x600/8c22bf4a951c7775a2c121e7e8a5dc2a21e0e773.jpg 400w, https://64.media.tumblr.com/0fa9a0bc2d92eed635d9dcb33e5343d8/a13f2dc60f2905f3-f2/s500x750/8dcc312882dc7c07593f4db336ddf73acd67d878.jpg 500w, https://64.media.tumblr.com/0fa9a0bc2d92eed635d9dcb33e5343d8/a13f2dc60f2905f3-f2/s540x810/f2a23aa4e79dd6f0d593e69f933c15f3d86c71dd.jpg 540w, https://64.media.tumblr.com/0fa9a0bc2d92eed635d9dcb33e5343d8/a13f2dc60f2905f3-f2/s640x960/d0727ca6e8aa58f1c2a615441be93fc910fe08d4.jpg 640w, https://64.media.tumblr.com/0fa9a0bc2d92eed635d9dcb33e5343d8/a13f2dc60f2905f3-f2/s1280x1920/660c6482c9f8c3d0643537fe378a27d917f0f0a9.jpg 1080w" sizes="(max-width: 1080px) 100vw, 1080px" alt="image"></a></figure></div></div><p>We stock and use a couple of different I2C ADCs, such as the NAU7802</p><div class="npf-link-block no-poster"><a target="_blank" href="https://www.adafruit.com/product/4538"><div class="title">Adafruit NAU7802 24-Bit ADC - STEMMA QT / Qwiic</div><div class="bottom"><div class="description"> If you are feeling the stress and strain of modern life a Wheatstone bridge and you want to quantify it, this handy breakout will do the job </div><div class="site-name"> adafruit.com </div></div></a></div><p>and the HX711</p><div class="npf-link-block has-poster"><a target="_blank" href="https://www.adafruit.com/product/5974"><div class="poster" style="background-image:url(https://64.media.tumblr.com/3438132fde475ea0409e03b9d72ba871/a13f2dc60f2905f3-67/s500x750/99c1d6f12a2dc291619b2dc0dbb3a420a1dd801e.jpg)"><div class="title">Adafruit HX711 24-bit ADC for Load Cells / Strain Gauges</div></div><div class="bottom"><div class="description"> If you are feeling the stress and strain of&nbsp;modern life&nbsp;a Wheatstone bridge and you want to quantify it, this handy breakout will </div><div class="site-name"> adafruit.com </div></div></a></div><p>Both of these are kinda designed specifically for load cells. This is a more general-purpose 24-bit ADC using the ADS122C04</p><div class="npf-link-block has-poster"><a target="_blank" href="https://www.digikey.com/en/products/detail/texas-instruments/ADS122C04IRTER/9665929"><div class="poster" style="background-image:url(https://64.media.tumblr.com/dbf9772cda322647954fff4cc4edb94e/a13f2dc60f2905f3-df/s640x960/7d2ffb9af24bd4390f20709541fec3a472db4d4d.jpg)"><div class="title">ADS122C04IRTER | DigiKey Electronics</div></div><div class="bottom"><div class="description"> Order today, ships today. ADS122C04IRTER – 24 Bit Analog to Digital Converter 4 Input 1 Sigma-Delta 16-WQFN (3x3) from Texas Instruments. Pr </div><div class="site-name"> DigiKey Electronics </div></div></a></div><p>with adjustable 1x to 128x gain, up to 2ksps and an internal reference. It can be single or differential input. Good for sensitive things like RTDs, thermocouples, or resistive bridges like load cells! Coming soon.</p></div> </div> <section class="inline-meta post-extra"> </section> <section class="inline-meta post-extra has-tags"> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/adafruit">adafruit</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/ADS112C04">ADS112C04</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/24bit">24bit</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/4channel">4channel</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/i2c">i2c</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/adc">adc</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/NAU7802">NAU7802</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/loadcells">loadcells</a> <a class="meta-item tag-link p-category" 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data-big-photo="https://64.media.tumblr.com/254ba8833954409c07955d9f7bb1a2d6/9a50ec617d2db20f-7d/s1280x1920/465ed03006d1d48b7ab22fe8c3c9a4f69a8b011d.jpg" data-big-photo-height="1080" data-big-photo-width="1080"><img class="post_media_photo image" src="https://64.media.tumblr.com/254ba8833954409c07955d9f7bb1a2d6/9a50ec617d2db20f-7d/s1280x1920/465ed03006d1d48b7ab22fe8c3c9a4f69a8b011d.jpg" srcset="https://64.media.tumblr.com/254ba8833954409c07955d9f7bb1a2d6/9a50ec617d2db20f-7d/s75x75_c1/cf48199c4dfa3d4710f564e62d73d1ee233385e4.jpg 75w, https://64.media.tumblr.com/254ba8833954409c07955d9f7bb1a2d6/9a50ec617d2db20f-7d/s100x200/ad8196b809b5023d263c82dce718d3b9a10cdb15.jpg 100w, https://64.media.tumblr.com/254ba8833954409c07955d9f7bb1a2d6/9a50ec617d2db20f-7d/s250x400/c69fd91f8456b262bb1b1277d4c0fd884d4879d2.jpg 250w, https://64.media.tumblr.com/254ba8833954409c07955d9f7bb1a2d6/9a50ec617d2db20f-7d/s400x600/fb689b49743faa6f08508078cad466559a62b24e.jpg 400w, https://64.media.tumblr.com/254ba8833954409c07955d9f7bb1a2d6/9a50ec617d2db20f-7d/s500x750/907d1e9641fc471bf66d085859c7619c147cc96b.jpg 500w, https://64.media.tumblr.com/254ba8833954409c07955d9f7bb1a2d6/9a50ec617d2db20f-7d/s540x810/fe4e1e0d4ddf578ed4fbbc5ff49925220c1313e4.jpg 540w, https://64.media.tumblr.com/254ba8833954409c07955d9f7bb1a2d6/9a50ec617d2db20f-7d/s640x960/b074b4969eaede2c8573aa59d949bef2abd94c38.jpg 640w, https://64.media.tumblr.com/254ba8833954409c07955d9f7bb1a2d6/9a50ec617d2db20f-7d/s1280x1920/465ed03006d1d48b7ab22fe8c3c9a4f69a8b011d.jpg 1080w" sizes="(max-width: 1080px) 100vw, 1080px" alt="image"></a></figure></div></div><p>A mini GPS from uBlox with I2C and UART 🛰️📡🔧</p><p>The SAM-M8Q </p><div class="npf-link-block has-poster"><a target="_blank" href="https://www.digikey.com/short/4t09vvbj"><div class="poster" style="background-image:url(https://64.media.tumblr.com/f2a9b2f387f4b9c237f1431430b9def0/9a50ec617d2db20f-d2/s640x960/b95be319698cfb22f9724033550ff8bcca617e86.jpg)"><div class="title">SAM-M8Q-0 | DigiKey Electronics</div></div><div class="bottom"><div class="description"> Order today, ships today. SAM-M8Q-0 – - RF Receiver Galileo, GLONASS, GPS 1.575GHz, 1.602GHz -165dBm 400kbps On-Board, Patch Module from u-b </div><div class="site-name"> DigiKey Electronics </div></div></a></div><p><br></p><p>is an entry-level ‘all in one’ GPS from uBlox - it comes with both UART and I2C interfaces plus a built-in antenna so it’s ready to go 'out of the box.’ It’s also fairly small, so we decided to try and make a little breakout for it. It exposes both interfaces, but we expect most folks will like using the Stemma QT port for instant I2C interfacing. We gotta dig into uBlox’s interface since we expect the I2C to be a little more complex than the PA1010 we’ve used.</p><div class="npf-link-block has-poster"><a target="_blank" href="https://www.adafruit.com/product/4415"><div class="poster" style="background-image:url(https://64.media.tumblr.com/b450d350083d80b4aa5359eb2a4aa857/9a50ec617d2db20f-27/s500x750/85e2260f52c9a0e51e33c36d4e0353123b3e8866.jpg)"><div class="title">Adafruit Mini GPS PA1010D - UART and I2C - STEMMA QT</div></div><div class="bottom"><div class="description"> This miniature GPS breakout is only 1&quot; x 1&quot; (~ 25mm x 25mm) but houses a complete GPS/GNSS solution with both I2C and UART interfa </div><div class="site-name"> adafruit.com </div></div></a></div></div> </div> <section class="inline-meta post-extra"> </section> <section class="inline-meta post-extra has-tags"> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/adafruit">adafruit</a> <a class="meta-item tag-link 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href="https://adafruit.tumblr.com/tagged/smalldevices">smalldevices</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/sensorintegration">sensorintegration</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/microcontroller">microcontroller</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/makersmovement">makersmovement</a> </section> </section> <section class="panel"> <footer class="post-footer"> <section class="panel"> <section class="inline-meta date-notes"> <div class="date-note-wrapper"> <span> <a href="https://adafruit.tumblr.com/post/761239645121134593/sam-m8q-0-digikey-electronics#notes" class="meta-item post-notes">7 notes</a> </span> <a href="https://adafruit.tumblr.com/post/761239645121134593/sam-m8q-0-digikey-electronics" title="6 months ago" class="meta-item post-date">Sep 10th, 2024</a><time class="dt-published" datetime="2024-09-10 09:24:58"></time> </div> </section> 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https://64.media.tumblr.com/636129a90cbc1c98c1c3e0e293f78a28/5424bcd55861d014-67/s500x750/4d29a91985442c994d1ec1eb2e6bc910a012c5e9.png 500w, https://64.media.tumblr.com/636129a90cbc1c98c1c3e0e293f78a28/5424bcd55861d014-67/s540x810/57746fa2c7ece9ef90444ceecf561a2dcfb0fa52.png 540w, https://64.media.tumblr.com/636129a90cbc1c98c1c3e0e293f78a28/5424bcd55861d014-67/s640x960/2bf6f6b5e85302c080a659f312782b3dfbb1f282.png 640w, https://64.media.tumblr.com/636129a90cbc1c98c1c3e0e293f78a28/5424bcd55861d014-67/s1280x1920/df52d0509ebf05909c68a64b2f2d927c8dd825a4.png 1080w" sizes="(max-width: 1080px) 100vw, 1080px" alt="image"></a></figure></div></div><p>BU9796 prototype finally comes to light ✨🔧🖥️</p><p>We covered the BU9796 a loooooooooong time ago on the Great Search while looking for an I2C LCD segment driver … </p><figure class="tmblr-embed tmblr-full"><iframe id="embed-67e060d502fa3484111185" class="embed_iframe" src="https://safe.txmblr.com/svc/embed/inline/https%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3D788EQXQLdMk#embed-67e060d502fa3484111185-partied" width="700" height="393" scrolling="no" frameborder="0" allowfullscreen="allowfullscreen" mozallowfullscreen="" webkitallowfullscreen=""></iframe></figure><p>but sadly, we never got around to making that breakout board. Til’ now! This one features the FS series of the chip, which has some more segments: in this board, we expose 4 common and 18 segments to keep the board from getting too big. This chip runs at 3V or 5V, so it should be easy to use with any device. We still need to figure out what VLCD connects to - some parts of the datasheet say VDD, and some say VSS, so we left a jumper on the back. That way, we can connect it correctly when we are more awake. Stemma QT makes this a plug-and-play driver for just about any micro! Coming soon…</p></div> </div> <section class="inline-meta post-extra"> </section> <section class="inline-meta post-extra has-tags"> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/adafruit">adafruit</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/BU9796">BU9796</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/prototype">prototype</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/i2c">i2c</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/lcd">lcd</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/hardwaredesign">hardwaredesign</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/electronics">electronics</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/makercommunity">makercommunity</a> <a class="meta-item 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date-notes"> <div class="date-note-wrapper"> <span> <a href="https://adafruit.tumblr.com/post/760517955236839424/bu9796-prototype-finally-comes-to-light-we#notes" class="meta-item post-notes">10 notes</a> </span> <a href="https://adafruit.tumblr.com/post/760517955236839424/bu9796-prototype-finally-comes-to-light-we" title="6 months ago" class="meta-item post-date">Sep 2nd, 2024</a><time class="dt-published" datetime="2024-09-02 10:14:01"></time> </div> </section> <section class="post-controls"> <div class="controls-wrapper"> <div class="control share-control"> <nav class="pop"> <a href="#" class="share selector"></a> <div class="pop-menu share-menu south" id="share_760517955236839424"> <ul> <li class="open-in-app"><a href="#" class="share-item open-in-app" data-post="760517955236839424">Open in app</a></li> <li><a href="https://facebook.com/sharer.php?u=https%3A%2F%2Fadafruit.tumblr.com%2Fpost%2F760517955236839424%2Fbu9796-prototype-finally-comes-to-light-we&t=" class="share-item 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https://64.media.tumblr.com/92ae85814fdb0dda70413aef1792d059/ad6f5e16f37c0157-a1/s500x750/a8defefafefefcd464621e6319ceea5a1d7cefc7.png 500w, https://64.media.tumblr.com/92ae85814fdb0dda70413aef1792d059/ad6f5e16f37c0157-a1/s540x810/f1452d5d4d40123d72a6f4cb52be58077a733f3d.png 540w, https://64.media.tumblr.com/92ae85814fdb0dda70413aef1792d059/ad6f5e16f37c0157-a1/s640x960/b2df61387b57a78e4af611da82152d59688e5920.png 640w, https://64.media.tumblr.com/92ae85814fdb0dda70413aef1792d059/ad6f5e16f37c0157-a1/s1280x1920/1cbd252f29a1718e23d098a4691ef77c0f3f7142.png 1080w" sizes="(max-width: 1080px) 100vw, 1080px" alt="image"></a></figure></div></div><p>DS4420 I2C audio volume controller, try 2 🎵🔊🔧</p><p>We started this breakout for the DS4420 (<a href="https://blog.adafruit.com/2021/01/15/ds2240-qt-breakout-routing-timelapse/">https://blog.adafruit.com/2021/01/15/ds2240-qt-breakout-routing-timelapse/</a>) I2C-controllable audio volume chip. We got it working but noticed late that it’s a 5V-power-only chip and shouldn’t be run from 3.3V. Then the parts shortage hit hard, and we couldn’t get more samples, so it went on hiatus! But now we’re about to get tons of DS4420 chips (<a href="https://www.digikey.com/en/products/detail/analog-devices-inc-maxim-integrated/DS4420N/1769257">https://www.digikey.com/en/products/detail/analog-devices-inc-maxim-integrated/DS4420N/1769257</a>) - so we’re respinning it. This time with an AP3602 switched-capacitor booster (<a href="https://www.digikey.com/en/products/detail/adafruit-industries-llc/3661/7915572">https://www.digikey.com/en/products/detail/adafruit-industries-llc/3661/7915572</a>) to give a nice 5V power rail. Coming soon.</p></div> </div> <section class="inline-meta post-extra"> </section> <section class="inline-meta post-extra has-tags"> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/adafruit">adafruit</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/DS4420">DS4420</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/audio">audio</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/electronics">electronics</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/i2c">i2c</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/diyprojects">diyprojects</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/audiocontroller">audiocontroller</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/hardwaredesign">hardwaredesign</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/engineering">engineering</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/circuitdesign">circuitdesign</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/techinnovation">techinnovation</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/makerspace">makerspace</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/newrelease">newrelease</a> </section> </section> <section class="panel"> <footer class="post-footer"> <section class="panel"> <section class="inline-meta date-notes"> <div class="date-note-wrapper"> <span> <a href="https://adafruit.tumblr.com/post/760371445018836992/ds4420-i2c-audio-volume-controller-try-2-we#notes" class="meta-item post-notes">6 notes</a> </span> <a href="https://adafruit.tumblr.com/post/760371445018836992/ds4420-i2c-audio-volume-controller-try-2-we" title="6 months ago" class="meta-item post-date">Aug 31st, 2024</a><time class="dt-published" datetime="2024-08-31 19:25:18"></time> </div> </section> <section class="post-controls"> <div class="controls-wrapper"> <div class="control share-control"> <nav class="pop"> <a href="#" class="share selector"></a> <div class="pop-menu share-menu south" id="share_760371445018836992"> <ul> <li class="open-in-app"><a href="#" class="share-item open-in-app" data-post="760371445018836992">Open in app</a></li> <li><a href="https://facebook.com/sharer.php?u=https%3A%2F%2Fadafruit.tumblr.com%2Fpost%2F760371445018836992%2Fds4420-i2c-audio-volume-controller-try-2-we&t=" class="share-item facebook" target="_blank">Facebook</a></li> <li><a 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data-big-photo="https://64.media.tumblr.com/e5d197b61ab9dd76e18a01547d3849da/c31c51f88a7a4675-15/s1280x1920/1d32c67d55313292a9ebcfbeb5a5a0449ab15a3e.png" data-big-photo-height="1080" data-big-photo-width="1080"><img class="post_media_photo image" src="https://64.media.tumblr.com/e5d197b61ab9dd76e18a01547d3849da/c31c51f88a7a4675-15/s1280x1920/1d32c67d55313292a9ebcfbeb5a5a0449ab15a3e.png" srcset="https://64.media.tumblr.com/e5d197b61ab9dd76e18a01547d3849da/c31c51f88a7a4675-15/s75x75_c1/01be27e6c683bf5c0ba622376e07c3335f4239b9.png 75w, https://64.media.tumblr.com/e5d197b61ab9dd76e18a01547d3849da/c31c51f88a7a4675-15/s100x200/ddc07b1901e875293549e6ce5fdc4ce81dcfc113.png 100w, https://64.media.tumblr.com/e5d197b61ab9dd76e18a01547d3849da/c31c51f88a7a4675-15/s250x400/ce0cdd4060b0f2e2b080cddfeea8cef432c0f0a4.png 250w, https://64.media.tumblr.com/e5d197b61ab9dd76e18a01547d3849da/c31c51f88a7a4675-15/s400x600/f131cbe96e5364b754c91284bf471890db7c3733.png 400w, https://64.media.tumblr.com/e5d197b61ab9dd76e18a01547d3849da/c31c51f88a7a4675-15/s500x750/7b9f20d414af83361c320d7e66bfa95c4a6376f5.png 500w, https://64.media.tumblr.com/e5d197b61ab9dd76e18a01547d3849da/c31c51f88a7a4675-15/s540x810/532324e17d28b3a5030b3df86cbef5cf7e59cfad.png 540w, https://64.media.tumblr.com/e5d197b61ab9dd76e18a01547d3849da/c31c51f88a7a4675-15/s640x960/42ef951193e2034d5284a8c03d9c23c223243249.png 640w, https://64.media.tumblr.com/e5d197b61ab9dd76e18a01547d3849da/c31c51f88a7a4675-15/s1280x1920/1d32c67d55313292a9ebcfbeb5a5a0449ab15a3e.png 1080w" sizes="(max-width: 1080px) 100vw, 1080px" alt="image"></a></figure></div></div><p>TPA6130 is an I2C-controlled Stereo Headphone Amp 🎧🔊📻</p><p>While working on our rev B of the DS4420 mono audio amplifier with I2C control, we remembered that we also covered the TPA6130A2 (<a href="https://www.digikey.com/en/products/detail/texas-instruments/TPA6130A2RTJR/1531096">https://www.digikey.com/en/products/detail/texas-instruments/TPA6130A2RTJR/1531096</a>) on a Great Search video twoish years ago (<a href="https://blog.adafruit.com/2022/08/30/the-great-search-stereo-headphone-amplifier-with-i2c-control-thegreatsearch-audio-digikey-digikey-adafruit/">https://blog.adafruit.com/2022/08/30/the-great-search-stereo-headphone-amplifier-with-i2c-control-thegreatsearch-audio-digikey-digikey-adafruit/</a>) this chip is a headphone amp that can drive 300mW into 16 ohm loads, from differential inputs. The gain can be configured over I2C, mute, and a few other minor configurations. We put a headphone jack on this board to be used instantly for audio projects! Coming soon.</p></div> </div> <section class="inline-meta post-extra"> </section> <section class="inline-meta post-extra has-tags"> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/adafruit">adafruit</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/TPA6130">TPA6130</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/I2C">I2C</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/stereo">stereo</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/headphone">headphone</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/DS4420">DS4420</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/audioproject">audioproject</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/electronicsengineering">electronicsengineering</a> <a 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https://64.media.tumblr.com/fcde3bdc8cdaec23f80f79497884d458/89b58d4a9f984bf3-c0/s500x750/d778dfa7b6e63bc6ce32e9837578838d7815234e.png 500w, https://64.media.tumblr.com/fcde3bdc8cdaec23f80f79497884d458/89b58d4a9f984bf3-c0/s540x810/35b491d75cb505230afba8e18ba57422e009548b.png 540w, https://64.media.tumblr.com/fcde3bdc8cdaec23f80f79497884d458/89b58d4a9f984bf3-c0/s640x960/87fd96c5b52fb7a2be014aa518bbf36f830d1bba.png 640w, https://64.media.tumblr.com/fcde3bdc8cdaec23f80f79497884d458/89b58d4a9f984bf3-c0/s1280x1920/e19daa4972d8c10687bd5946d5e2451bf3e676b3.png 1080w" sizes="(max-width: 1080px) 100vw, 1080px" alt="image"></a></figure></div></div><p>DS2482-800 is an I2C to 8x one wire port converter 🔧🌡️🔗</p><p>We like our breakout for the DS2484 (<a href="https://www.adafruit.com/product/5976">https://www.adafruit.com/product/5976</a>), an I2C to one-wire converter - and got a heads up that there’s also an 8-port version called the DS2482-800 (<a href="https://www.digikey.com/en/products/detail/analog-devices-inc-maxim-integrated/DS2482S-800/1197437">https://www.digikey.com/en/products/detail/analog-devices-inc-maxim-integrated/DS2482S-800/1197437</a>). at first this seems a bit odd: the whole point of one-wire is that you can share that wire with all sensors. But you don’t want to have to deal with the DS18b20 sensor addressing to determine what zone it’s in that would require hard-coding the unique identifiers. This way, you can have up to 8 temperature sensors that can be hot-swapped.</p></div> </div> <section class="inline-meta post-extra"> </section> <section class="inline-meta post-extra has-tags"> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/adafruit">adafruit</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/DS2482">DS2482</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/I2C">I2C</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/electronics">electronics</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/sensors">sensors</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/onewire">onewire</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/temperaturemonitoring">temperaturemonitoring</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/hardware">hardware</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/iot">iot</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/digitaldesign">digitaldesign</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/circuitdesign">circuitdesign</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/prototyping">prototyping</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/breakoutboard">breakoutboard</a> </section> </section> <section class="panel"> <footer class="post-footer"> <section class="panel"> <section class="inline-meta date-notes"> <div class="date-note-wrapper"> <span> <a href="https://adafruit.tumblr.com/post/759339794753077248/ds2482-800-is-an-i2c-to-8x-one-wire-port-converter#notes" class="meta-item post-notes">4 notes</a> </span> <a 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id="like_iframe_759339794753077248" src="https://assets.tumblr.com/assets/html/like_iframe.html?_v=c96f30edcf75919c3976e1403422560b#name=adafruit&post_id=759339794753077248&color=black&rk=vI3RxBj9&slug=ds2482-800-is-an-i2c-to-8x-one-wire-port-converter" scrolling="no" width="24" height="24" frameborder="0" class="like_toggle" allowTransparency="true" name="like_iframe_759339794753077248"></iframe></div></div> </div> </section> </section> <section class="inline-meta date-notes"> <span class="notes-pop-container"> </span> </section> </footer> </section> </div> </article> <article class="text not-page post-752399113534980096 " data-post-id="752399113534980096" > <div class="post-wrapper clearfix h-entry"> <header class="post-header "> </header> <section class="post"> <div class="post-content"> <div class="body-text e-content"><figure class="tmblr-full" data-orig-height="1080" data-orig-width="1920" data-npf="{"type":"video","provider":"tumblr","url":"https://va.media.tumblr.com/tumblr_sekwsxGfmu1was4p5_720.mp4","media":{"url":"https://va.media.tumblr.com/tumblr_sekwsxGfmu1was4p5_720.mp4","type":"video/mp4","width":1920,"height":1080},"poster":[{"url":"https://64.media.tumblr.com/tumblr_sekwsxGfmu1was4p5_frame1.jpg","type":"image/jpeg","width":1920,"height":1080}],"filmstrip":{"url":"https://64.media.tumblr.com/previews/tumblr_sekwsxGfmu1was4p5_filmstrip.jpg","type":"image/jpeg","width":2000,"height":112}}"><video controls="controls" autoplay="autoplay" playsinline="playsinline" muted="muted" poster="https://64.media.tumblr.com/tumblr_sekwsxGfmu1was4p5_frame1.jpg"><source src="https://va.media.tumblr.com/tumblr_sekwsxGfmu1was4p5_720.mp4" type="video/mp4" /></video></figure><p>Prototype board with the DS2484</p><p>We had a customer request for an I2C to 1-Wire converter: handy for when you don’t have a spare GPIO, or maybe you can’t do fast pin toggling, or maybe you have a single board computer or desktop that you want to connect to 1-Wire devices like the DS18B20. so we spun up a prototype board with the DS2484 (<a href="https://www.digikey.com/en/products/detail/analog-devices-inc-maxim-integrated/DS2484R-T/5020823">https://www.digikey.com/en/products/detail/analog-devices-inc-maxim-integrated/DS2484R-T/5020823</a>) the latest version from Analog Devices. here i’m testing out my code: with multiple DS18B20’s, some TO-92’s (<a href="https://www.adafruit.com/product/374">https://www.adafruit.com/product/374</a>) and a wired sensor (<a href="https://www.adafruit.com/product/381">https://www.adafruit.com/product/381</a>) that i can dunk in a teacup to verify it reports the temperature right.</p></div> </div> <section class="inline-meta post-extra"> </section> <section class="inline-meta post-extra has-tags"> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/adafruit">adafruit</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/electronics">electronics</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/DS2484">DS2484</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/gpio">gpio</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/i2c">i2c</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/i2cprotocol">i2cprotocol</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/1-wire">1-wire</a> </section> </section> <section class="panel"> <footer class="post-footer"> <section class="panel"> <section class="inline-meta date-notes"> <div class="date-note-wrapper"> <span> <a href="https://adafruit.tumblr.com/post/752399113534980096/prototype-board-with-the-ds2484-we-had-a-customer#notes" class="meta-item post-notes">5 notes</a> </span> <a href="https://adafruit.tumblr.com/post/752399113534980096/prototype-board-with-the-ds2484-we-had-a-customer" title="9 months ago" class="meta-item post-date">Jun 4th, 2024</a><time class="dt-published" datetime="2024-06-04 19:28:30"></time> </div> </section> <section class="post-controls"> <div class="controls-wrapper"> <div class="control share-control"> <nav class="pop"> <a href="#" class="share selector"></a> <div class="pop-menu share-menu south" id="share_752399113534980096"> <ul> <li class="open-in-app"><a href="#" class="share-item open-in-app" data-post="752399113534980096">Open in app</a></li> <li><a href="https://facebook.com/sharer.php?u=https%3A%2F%2Fadafruit.tumblr.com%2Fpost%2F752399113534980096%2Fprototype-board-with-the-ds2484-we-had-a-customer&t=" class="share-item facebook" target="_blank">Facebook</a></li> <li><a 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data-big-photo="https://64.media.tumblr.com/4ac66c449324ba89a729b1692214e5a0/e464de2b9df9538f-01/s1280x1920/1b8e4d1825ea02a1cacdc391158a065a0ec882e0.png" data-big-photo-height="1080" data-big-photo-width="1080"><img class="post_media_photo image" src="https://64.media.tumblr.com/4ac66c449324ba89a729b1692214e5a0/e464de2b9df9538f-01/s1280x1920/1b8e4d1825ea02a1cacdc391158a065a0ec882e0.png" srcset="https://64.media.tumblr.com/4ac66c449324ba89a729b1692214e5a0/e464de2b9df9538f-01/s75x75_c1/b73239950e185e1407e9ba84f26ae89249ef374e.png 75w, https://64.media.tumblr.com/4ac66c449324ba89a729b1692214e5a0/e464de2b9df9538f-01/s100x200/0b67b7a5d78c6382ab33def8b03e95647ba013f8.png 100w, https://64.media.tumblr.com/4ac66c449324ba89a729b1692214e5a0/e464de2b9df9538f-01/s250x400/7fbb779c180d29260fe67fb88995049d83d422a5.png 250w, https://64.media.tumblr.com/4ac66c449324ba89a729b1692214e5a0/e464de2b9df9538f-01/s400x600/9ebf0ab2d08567db813d87678f17ff944672961f.png 400w, https://64.media.tumblr.com/4ac66c449324ba89a729b1692214e5a0/e464de2b9df9538f-01/s500x750/a62851c1646a90b2f0dca80a8069752153bcb112.png 500w, https://64.media.tumblr.com/4ac66c449324ba89a729b1692214e5a0/e464de2b9df9538f-01/s540x810/23fcdd564c68011ba5219f4e9a21f1d77bb7465c.png 540w, https://64.media.tumblr.com/4ac66c449324ba89a729b1692214e5a0/e464de2b9df9538f-01/s640x960/7bbd272827daf01e005df3dc7790ecfb42214c3c.png 640w, https://64.media.tumblr.com/4ac66c449324ba89a729b1692214e5a0/e464de2b9df9538f-01/s1280x1920/1b8e4d1825ea02a1cacdc391158a065a0ec882e0.png 1080w" sizes="(max-width: 1080px) 100vw, 1080px" alt="image"></a></figure></div></div><p>Coming soon - Stemma QT breadboard pal takes a load off I2C wiring</p><p>we got a request for a little I2C breadboarding helper - something that will let people add stemma QT / qwiic connectors (<a href="https://www.adafruit.com/stemma">https://www.adafruit.com/stemma</a>) to a project easily. instead of just an SMT-to-THM adapter we also tossed on a 10uF power decoupling cap, power LED (that can be disabled) and 10K I2C pullup resistors (that also can be disabled). we sketched this one out pretty fast but like how it turned out! we may also make this board available with headers pre-soldered since stemma QT is specifically designed for solder-free work.</p></div> </div> <section class="inline-meta post-extra"> </section> <section class="inline-meta post-extra has-tags"> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/adafruit">adafruit</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/electronics">electronics</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/stemma%20qt">stemma qt</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/breadboard">breadboard</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/i2c">i2c</a> </section> </section> <section 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data-big-photo-height="1080" data-big-photo-width="1080"><img class="post_media_photo image" src="https://64.media.tumblr.com/c635f149f3313bf68b1167f9bcd5bcae/11a2e6be9cf5c757-77/s1280x1920/b0f160059d8475c8c853dadace7af46aa9acd238.png" srcset="https://64.media.tumblr.com/c635f149f3313bf68b1167f9bcd5bcae/11a2e6be9cf5c757-77/s75x75_c1/4318165d9c24878ff96ec17a6885a56ac49a81b9.png 75w, https://64.media.tumblr.com/c635f149f3313bf68b1167f9bcd5bcae/11a2e6be9cf5c757-77/s100x200/1dbe3e7f0769dd6de6b82152cbee4cdebe14c619.png 100w, https://64.media.tumblr.com/c635f149f3313bf68b1167f9bcd5bcae/11a2e6be9cf5c757-77/s250x400/f295f261c2ae885696341c200f9ffad8eb185129.png 250w, https://64.media.tumblr.com/c635f149f3313bf68b1167f9bcd5bcae/11a2e6be9cf5c757-77/s400x600/9fc6df6d6c477fdcdaeaca3b9bba079da87b2f21.png 400w, https://64.media.tumblr.com/c635f149f3313bf68b1167f9bcd5bcae/11a2e6be9cf5c757-77/s500x750/2ccb81bb923f1a30febb6950302fee34126b889f.png 500w, https://64.media.tumblr.com/c635f149f3313bf68b1167f9bcd5bcae/11a2e6be9cf5c757-77/s540x810/989b88874b8741a9a2ade7e189fa14e8d0f32f2d.png 540w, https://64.media.tumblr.com/c635f149f3313bf68b1167f9bcd5bcae/11a2e6be9cf5c757-77/s640x960/e1a1b16458ec4a1852cc8d9aa089b0aa027c5ae4.png 640w, https://64.media.tumblr.com/c635f149f3313bf68b1167f9bcd5bcae/11a2e6be9cf5c757-77/s1280x1920/b0f160059d8475c8c853dadace7af46aa9acd238.png 1080w" sizes="(max-width: 1080px) 100vw, 1080px" alt="image"></a></figure></div></div><p>PCB of the day! HUSB238 USB PD Sink Breakout 🔌🔋💡</p><p>USB C has a nifty power management system where, by default, you can get a classic 5V at 1A power out from a power supply or port, but with some fancy twiddling, you can request higher voltages and currents. We’ve always wanted a simple breakout that could get you a range of voltages using just jumper pads, but we only had a little luck with IP2721. Then we found this chip - the HUSB238 <a href="https://en.hynetek.com/pdsink.html">https://en.hynetek.com/pdsink.html</a> - used in a USB-to-DC cable, which seems perfect! It can do 5V to 20V with just a resistor setting and set the current. There’s also an I2C interface that can be used to set them if the settings are persistent - we’ll have to try it out. There’s a library here if you want to see what the registers are like <a href="https://github.com/ltyridium/HUSB238-lib">https://github.com/ltyridium/HUSB238-lib</a>. Here’s our draft for a breakout design.</p></div> </div> <section class="inline-meta post-extra"> </section> <section class="inline-meta post-extra has-tags"> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/adafruit">adafruit</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/electronics">electronics</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/pcb">pcb</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/opensource">opensource</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/opensourcehardware">opensourcehardware</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/pcboftheday">pcboftheday</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/husb238">husb238</a> <a class="meta-item tag-link p-category" 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href="https://adafruit.tumblr.com/tagged/hardwaredesign">hardwaredesign</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/circuitboard">circuitboard</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/technology">technology</a> <a class="meta-item tag-link p-category" href="https://adafruit.tumblr.com/tagged/innovation">innovation</a> </section> </section> <section class="panel"> <footer class="post-footer"> <section class="panel"> <section class="inline-meta date-notes"> <div class="date-note-wrapper"> <span> <a href="https://adafruit.tumblr.com/post/725729689550897152/pcb-of-the-day-husb238-usb-pd-sink-breakout#notes" class="meta-item post-notes">26 notes</a> </span> <a href="https://adafruit.tumblr.com/post/725729689550897152/pcb-of-the-day-husb238-usb-pd-sink-breakout" title="1 year ago" class="meta-item post-date">Aug 15th, 2023</a><time class="dt-published" datetime="2023-08-15 10:29:25"></time> </div> 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class="tmblr-full"><a class="post_media_photo_anchor" data-big-photo="https://64.media.tumblr.com/51f5de933da3561b697d6aab5049fa10/cbb74548f7086d93-fc/s1280x1920/6951c9359950008e623e67646af68bd80d019013.gifv" data-big-photo-height="304" data-big-photo-width="540"><img class="post_media_photo image" src="https://64.media.tumblr.com/51f5de933da3561b697d6aab5049fa10/cbb74548f7086d93-fc/s540x810/dac9e1d0f65bb4721cddbbdd54dd850c40c21906.gifv" srcset="https://64.media.tumblr.com/51f5de933da3561b697d6aab5049fa10/cbb74548f7086d93-fc/s75x75_c1/acb2fb7b0ab67fd73f7ff9240a7aac9ba06d430b.gifv 75w, https://64.media.tumblr.com/51f5de933da3561b697d6aab5049fa10/cbb74548f7086d93-fc/s100x200/3c3b782ee57eb50c5390fce48cff9303c34e3f57.gifv 100w, https://64.media.tumblr.com/51f5de933da3561b697d6aab5049fa10/cbb74548f7086d93-fc/s250x400/6c8625f70f11152bec4a0b24c342f884ea96ec5f.gifv 250w, 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srcset="https://64.media.tumblr.com/50521979380a4505c6e70b0351a68f3a/cbb74548f7086d93-ad/s75x75_c1/3e3739b6139afe46dac464f641494ebfadc99e7c.gifv 75w, https://64.media.tumblr.com/50521979380a4505c6e70b0351a68f3a/cbb74548f7086d93-ad/s100x200/d4ff2363572ad9cb0d4bae9e7ec610f9b19e09ba.gifv 100w, https://64.media.tumblr.com/50521979380a4505c6e70b0351a68f3a/cbb74548f7086d93-ad/s250x400/f05be149d250f33290cc1ee7a868bb366a8e0b74.gifv 250w, https://64.media.tumblr.com/50521979380a4505c6e70b0351a68f3a/cbb74548f7086d93-ad/s400x600/053499bf435877344e79bd584cbf8eb158ab5e8e.gifv 400w, https://64.media.tumblr.com/50521979380a4505c6e70b0351a68f3a/cbb74548f7086d93-ad/s500x750/3532d93aaa992539c72c9016e28b4cc1b7e251e5.gifv 500w, https://64.media.tumblr.com/50521979380a4505c6e70b0351a68f3a/cbb74548f7086d93-ad/s540x810/08b9ded3ca5a1f65e303dcc510267c53d808828f.gifv 540w" sizes="(max-width: 540px) 100vw, 540px" alt="image"></a></figure></div></div><div class="npf_row"><div class="npf_col"><figure class="tmblr-full"><a class="post_media_photo_anchor" data-big-photo="https://64.media.tumblr.com/43dbab0e15f4e01ba06cfa8d56e91a42/cbb74548f7086d93-d7/s1280x1920/748dfcd357fdc10e2a12466c04eb61992501da1f.gifv" data-big-photo-height="304" data-big-photo-width="540"><img class="post_media_photo image" src="https://64.media.tumblr.com/43dbab0e15f4e01ba06cfa8d56e91a42/cbb74548f7086d93-d7/s540x810/9a2beb6e27573bb785a78b8b7f28280d1f1a4f35.gifv" srcset="https://64.media.tumblr.com/43dbab0e15f4e01ba06cfa8d56e91a42/cbb74548f7086d93-d7/s75x75_c1/9deaad50d0af70b4d013f25f8224f7bf77dfef44.gifv 75w, https://64.media.tumblr.com/43dbab0e15f4e01ba06cfa8d56e91a42/cbb74548f7086d93-d7/s100x200/c534956c2910cd017cff6d509bf66c38fc877a99.gifv 100w, https://64.media.tumblr.com/43dbab0e15f4e01ba06cfa8d56e91a42/cbb74548f7086d93-d7/s250x400/6277a104b660ada6b759a362113f14d10683c79a.gifv 250w, https://64.media.tumblr.com/43dbab0e15f4e01ba06cfa8d56e91a42/cbb74548f7086d93-d7/s400x600/b28dbc9987dd582b3261e3ff21fde6cd0c463e0d.gifv 400w, https://64.media.tumblr.com/43dbab0e15f4e01ba06cfa8d56e91a42/cbb74548f7086d93-d7/s500x750/49e732c8e69085118cd447242ff83bd55f21435b.gifv 500w, https://64.media.tumblr.com/43dbab0e15f4e01ba06cfa8d56e91a42/cbb74548f7086d93-d7/s540x810/9a2beb6e27573bb785a78b8b7f28280d1f1a4f35.gifv 540w" sizes="(max-width: 540px) 100vw, 540px" alt="image"></a></figure></div></div><p>Johnny Mnemonic (1995)</p> </div> </div> </div> </div> </div> <section class="inline-meta post-extra has-reblog"> </section> </section> <section class="panel"> <footer class="post-footer"> <section class="panel"> <section class="inline-meta date-notes"> <div class="date-note-wrapper"> <a href="https://www.tumblr.com/oldguydoesstuff/763081577744007169?is_liked_post=1#notes" class="meta-item post-notes" target="_blank">3,394 notes</a> </div> </section> <section class="post-controls"> <div 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