--- title: Shipping grayscale photos at small scale | daily.dev description: A recap of a custom Linux-capable hardware name badge built for the Goatmire Elixir conference in Varberg, Sweden, sponsored by Tigris. The badge is based on... canonical: https://daily.dev/posts/shipping-grayscale-photos-at-small-scale-g1wz5mre0 twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Shipping grayscale photos at small scale | daily.dev og:description: A recap of a custom Linux-capable hardware name badge built for the Goatmire Elixir conference in Varberg, Sweden, sponsored by Tigris. The badge is based on... og:url: https://daily.dev/posts/shipping-grayscale-photos-at-small-scale-g1wz5mre0 og:image: https://api.daily.dev/og/posts/G1WZ5mRe0.png og:image:alt: Shipping grayscale photos at small scale 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. # Shipping grayscale photos at small scale **[Beam Bloggers Webring](https://daily.dev/sources/beambloggers)** · 6 min read · 1 upvotes · 0 comments ## Summary A recap of a custom Linux-capable hardware name badge built for the Goatmire Elixir conference in Varberg, Sweden, sponsored by Tigris. The badge is based on the Allwinner T113-S4 SoC, runs Nerves (a Buildroot-based Linux + BEAM framework for IoT), and features an eInk display, Wi-Fi, and battery. Attendees could upload photos via a Phoenix LiveView app; approved images were converted to 1-bit dithered black-and-white and pushed to the badges. Media handling used Tigris pre-signed uploads/downloads. The hardware and software are fully open source, a Snake game was implemented live during the event, and the project is evolving into a broader Nerves Starter Kit with more peripherals. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [An Event Badge Re-Imagined As A Cyberdeck](https://daily.dev/posts/an-event-badge-re-imagined-as-a-cyberdeck-yqapkukqe) · Hackaday · 0 upvotes · 0 comments - [Nerves base system for STM32MP157F-DK2](https://daily.dev/posts/nerves-base-system-for-stm32mp157f-dk2-bm7evnecj) · Elixir Forum · 0 upvotes · 0 comments - [Conference Report: Goatmire Elixir 2025](https://daily.dev/posts/conference-report-goatmire-elixir-2025-qcddfos9h) · ElixirStatus · 0 upvotes · 0 comments - [GitHub - KaiPereira/Overglade-Badges: NFC hackathon badges for the Overglade game jam in Singapore\!](https://daily.dev/posts/github---kaipereira-overglade-badges-nfc-hackathon-badges-for-the-overglade-game-jam-in-singapore--xvhkvxuo1) · Hacker News · 0 upvotes · 0 comments - [I built 2,000 badges for Replay and I’m not sure I’ve slept since December](https://daily.dev/posts/i-built-2-000-badges-for-replay-and-i-m-not-sure-i-ve-slept-since-december-6zq7asu5z) · Temporal · 0 upvotes · 0 comments --- Tags: [#iot](https://daily.dev/tags/iot), [#elixir](https://daily.dev/tags/elixir) [View this post on daily.dev](https://daily.dev/posts/shipping-grayscale-photos-at-small-scale-g1wz5mre0) ```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":"Shipping grayscale photos at small scale","url":"https://daily.dev/posts/shipping-grayscale-photos-at-small-scale-g1wz5mre0","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/shipping-grayscale-photos-at-small-scale-g1wz5mre0"},"datePublished":"2026-03-08T22:27:17.975Z","dateModified":"2026-03-08T22:27:46.206Z","description":"A recap of a custom Linux-capable hardware name badge built for the Goatmire Elixir conference in Varberg, Sweden, sponsored by Tigris. 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