--- title: Mini Blinking Barrels Keep Desktop Traffic In Check description: A hobbyist built miniature blinking traffic barrels to give a desk a construction-zone look, going far beyond a simple LED blink into a full small-scale... canonical: https://daily.dev/posts/mini-blinking-barrels-keep-desktop-traffic-in-check-tgorjsmnn twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Mini Blinking Barrels Keep Desktop Traffic In Check | daily.dev og:description: A hobbyist built miniature blinking traffic barrels to give a desk a construction-zone look, going far beyond a simple LED blink into a full small-scale... og:url: https://daily.dev/posts/mini-blinking-barrels-keep-desktop-traffic-in-check-tgorjsmnn og:image: https://api.daily.dev/og/posts/tGorjsmnn.png og:image:alt: Mini Blinking Barrels Keep Desktop Traffic In Check og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Mini Blinking Barrels Keep Desktop Traffic In Check **[Hackaday](https://daily.dev/sources/hackaday)** · 3 min read · 1 upvotes · 0 comments ## Summary A hobbyist built miniature blinking traffic barrels to give a desk a construction-zone look, going far beyond a simple LED blink into a full small-scale production design. The write-up covers 3D printing a support-free barrel body in Fusion, choosing a PIC12F1612 microcontroller over a classic 555 timer for better flexibility and roughly 15% longer battery life, and iterating through multiple PCB revisions plus a custom programming adapter board. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Questions this post answers ### Why would someone use a PIC12F1612 microcontroller instead of a 555 timer to blink an LED A PIC12F1612 offers more flexibility in shaping the blink pattern than a 555 timer, requires fewer passive components on the board, and is considerably more energy efficient. In one blinking-barrel project, using a 555 timer instead was calculated to cut battery life by approximately 15% compared to the PIC-based design. _Comparing microcontrollers against classic ICs for a build is easier with daily.dev's coverage of hobbyist electronics._ ## Similar posts on daily.dev - [Someone built a system that lets them "pour" LED pixels from a display into and out of their monitor](https://daily.dev/posts/someone-built-a-system-that-lets-them-pour-led-pixels-from-a-display-into-and-out-of-their-monitor-1ols4nmgr) · XDA Developers · 0 upvotes · 0 comments - [Electronic Busy Board Is Fun For Kids and Hackers](https://daily.dev/posts/electronic-busy-board-is-fun-for-kids-and-hackers-sovkst1oy) · Hackaday · 0 upvotes · 0 comments - [Solar Powered Traffic Monitoring](https://daily.dev/posts/solar-powered-traffic-monitoring-fuwo67c3c) · Hackaday · 0 upvotes · 0 comments - [Flipper BUSY Bar open-source productivity multitool features LED pixel display, supports Matter connectivity](https://daily.dev/posts/flipper-busy-bar-open-source-productivity-multitool-features-led-pixel-display-supports-matter-conn-nwvudvmuq) · CNX Software · 1 upvotes · 0 comments --- [View this post on daily.dev](https://daily.dev/posts/mini-blinking-barrels-keep-desktop-traffic-in-check-tgorjsmnn) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Mini Blinking Barrels Keep Desktop Traffic In Check","url":"https://daily.dev/posts/mini-blinking-barrels-keep-desktop-traffic-in-check-tgorjsmnn","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/mini-blinking-barrels-keep-desktop-traffic-in-check-tgorjsmnn"},"datePublished":"2026-08-19T20:08:42.165Z","dateModified":"2026-09-13T21:34:40.772Z","description":"A hobbyist built miniature blinking traffic barrels to give a desk a construction-zone look, going far beyond a simple LED blink into a full small-scale...","image":"https://hackaday.com/wp-content/uploads/2026/08/blinkbarrel_feat.gif","thumbnailUrl":"https://hackaday.com/wp-content/uploads/2026/08/blinkbarrel_feat.gif","isAccessibleForFree":true,"articleSection":"Hackaday","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"Hackaday","logo":"https://media.daily.dev/image/upload/s--JhDfhy70--/f_auto,q_auto/v1767541814/logos/hackaday","url":"https://daily.dev/sources/hackaday"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/mini-blinking-barrels-keep-desktop-traffic-in-check-tgorjsmnn","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":1},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"","timeRequired":"PT3M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Hackaday","item":"https://daily.dev/sources/hackaday"},{"@type":"ListItem","position":3,"name":"Mini Blinking Barrels Keep Desktop Traffic In Check"}]} {"@context":"https://schema.org","@type":"FAQPage","@id":"https://daily.dev/posts/mini-blinking-barrels-keep-desktop-traffic-in-check-tgorjsmnn#faq","mainEntity":[{"@type":"Question","name":"Why would someone use a PIC12F1612 microcontroller instead of a 555 timer to blink an LED","acceptedAnswer":{"@type":"Answer","text":"A PIC12F1612 offers more flexibility in shaping the blink pattern than a 555 timer, requires fewer passive components on the board, and is considerably more energy efficient. 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