--- title: A DIY watch with off-the-shelf Raspberry Pi RP2040 round... description: The ChronoWatch X2040 is a DIY wristwatch built around the Waveshare RP2040-Touch-LCD-1.28 board, a 3D-printed case designed in Tinkercad, and a 3.7V LiPo... canonical: https://daily.dev/posts/a-diy-watch-with-off-the-shelf-raspberry-pi-rp2040-round-display-3d-printed-case-and-custom-firmwa-b4c9kbn22 twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: A DIY watch with off-the-shelf Raspberry Pi RP2040 round display, 3D printed case, and custom firmware | daily.dev og:description: The ChronoWatch X2040 is a DIY wristwatch built around the Waveshare RP2040-Touch-LCD-1.28 board, a 3D-printed case designed in Tinkercad, and a 3.7V LiPo... og:url: https://daily.dev/posts/a-diy-watch-with-off-the-shelf-raspberry-pi-rp2040-round-display-3d-printed-case-and-custom-firmwa-b4c9kbn22 og:image: https://api.daily.dev/og/posts/B4c9kBN22.png og:image:alt: A DIY watch with off-the-shelf Raspberry Pi RP2040 round display, 3D printed case, and custom firmware 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. # A DIY watch with off-the-shelf Raspberry Pi RP2040 round display, 3D printed case, and custom firmware **[CNX Software](https://daily.dev/sources/cnx-software)** · [@cnxsoft](https://daily.dev/cnxsoft) · 2 min read · 0 upvotes · 0 comments ## Summary The ChronoWatch X2040 is a DIY wristwatch built around the Waveshare RP2040-Touch-LCD-1.28 board, a 3D-printed case designed in Tinkercad, and a 3.7V LiPo battery. The firmware, written using the Pico C/C++ SDK, supports time/date display in 12/24-hour formats, multiple watch faces, brightness control, stopwatch, screen rotation, and a touch interface. The UF2 binary and 3D files are free on GitHub, while the source code is available for $4.99. Assembly and flashing instructions are hosted on Hackster.io. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Someone built their own e-ink watch, and it features over 20 custom faces](https://daily.dev/posts/someone-built-their-own-e-ink-watch-and-it-features-over-20-custom-faces-8qt7tbytq) · XDA Developers · 0 upvotes · 0 comments - [How to build a circular LCD clock](https://daily.dev/posts/how-to-build-a-circular-lcd-clock-x6ed6a3j5) · Lobsters · 1 upvotes · 0 comments - [A DIY Watch You Can Actually Wear](https://daily.dev/posts/a-diy-watch-you-can-actually-wear-fy1barpng) · Hacker News · 1 upvotes · 0 comments - [A Custom PCB For The Casio G-Shock](https://daily.dev/posts/a-custom-pcb-for-the-casio-g-shock-xytjxug6u) · Hackaday · 0 upvotes · 0 comments --- Tags: [#embedded](https://daily.dev/tags/embedded), [#firmware](https://daily.dev/tags/firmware) [View this post on daily.dev](https://daily.dev/posts/a-diy-watch-with-off-the-shelf-raspberry-pi-rp2040-round-display-3d-printed-case-and-custom-firmwa-b4c9kbn22) ```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":"A DIY watch with off-the-shelf Raspberry Pi RP2040 round display, 3D printed case, and custom firmware","url":"https://daily.dev/posts/a-diy-watch-with-off-the-shelf-raspberry-pi-rp2040-round-display-3d-printed-case-and-custom-firmwa-b4c9kbn22","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/a-diy-watch-with-off-the-shelf-raspberry-pi-rp2040-round-display-3d-printed-case-and-custom-firmwa-b4c9kbn22"},"datePublished":"2026-08-03T14:50:08.968Z","dateModified":"2026-08-04T11:00:21.464Z","description":"The ChronoWatch X2040 is a DIY wristwatch built around the Waveshare RP2040-Touch-LCD-1.28 board, a 3D-printed case designed in Tinkercad, and a 3.7V LiPo...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/49f894664793539fbd07ef558ca3cb00?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/49f894664793539fbd07ef558ca3cb00?_a=AQAEuop","isAccessibleForFree":true,"articleSection":"CNX Software","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":"Person","name":"CNXSoft","url":"https://daily.dev/cnxsoft","image":"https://avatars.githubusercontent.com/u/1366138?v=4","interactionStatistic":{"@type":"InteractionCounter","interactionType":{"@type":"EndorseAction"},"userInteractionCount":510}},"commentCount":0,"discussionUrl":"https://daily.dev/posts/a-diy-watch-with-off-the-shelf-raspberry-pi-rp2040-round-display-3d-printed-case-and-custom-firmwa-b4c9kbn22","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"embedded,firmware","timeRequired":"PT2M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"CNX Software","item":"https://daily.dev/sources/cnx-software"},{"@type":"ListItem","position":3,"name":"A DIY watch with off-the-shelf Raspberry Pi RP2040 round display, 3D printed case, and custom firmware"}]} ```