--- title: pico-usb-wifi firmware converts the Raspberry Pi Pico W... description: pico-usb-wifi is an open-source firmware project that turns a Raspberry Pi Pico W into a driverless USB WiFi adapter compatible with Windows, Linux, macOS, and... canonical: https://daily.dev/posts/pico-usb-wifi-firmware-converts-the-raspberry-pi-pico-w-into-a-driverless-usb-wifi-adapter-ppuzwbcnj twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: pico-usb-wifi firmware converts the Raspberry Pi Pico W into a driverless USB WiFi adapter | daily.dev og:description: pico-usb-wifi is an open-source firmware project that turns a Raspberry Pi Pico W into a driverless USB WiFi adapter compatible with Windows, Linux, macOS, and... og:url: https://daily.dev/posts/pico-usb-wifi-firmware-converts-the-raspberry-pi-pico-w-into-a-driverless-usb-wifi-adapter-ppuzwbcnj og:image: https://api.daily.dev/og/posts/PpUZwBCNj.png og:image:alt: pico-usb-wifi firmware converts the Raspberry Pi Pico W into a driverless USB WiFi adapter 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. # pico-usb-wifi firmware converts the Raspberry Pi Pico W into a driverless USB WiFi adapter **[CNX Software](https://daily.dev/sources/cnx-software)** · [@cnxsoft](https://daily.dev/cnxsoft) · 3 min read · 1 upvotes · 0 comments ## Summary pico-usb-wifi is an open-source firmware project that turns a Raspberry Pi Pico W into a driverless USB WiFi adapter compatible with Windows, Linux, macOS, and any OS supporting USB CDC-NCM. It implements a transparent Layer-2 bridge between the Pico W's CYW43439 wireless module and its USB interface, exposing an Ethernet connection via USB gadget mode. Features include IPv4/IPv6 support without NAT, WPA2-PSK and WPA3-SAE authentication, and out-of-band management via CDC-ACM serial. Throughput averages 4.75 Mbits/sec, bottlenecked by the 12 Mbps USB 1.1 interface. The project was built in C using the PicoSDK and developed with Claude Code assistance, with source available on GitLab. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: --- Tags: [#networking](https://daily.dev/tags/networking), [#embedded](https://daily.dev/tags/embedded), [#firmware](https://daily.dev/tags/firmware) [View this post on daily.dev](https://daily.dev/posts/pico-usb-wifi-firmware-converts-the-raspberry-pi-pico-w-into-a-driverless-usb-wifi-adapter-ppuzwbcnj) ```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":"pico-usb-wifi firmware converts the Raspberry Pi Pico W into a driverless USB WiFi adapter","url":"https://daily.dev/posts/pico-usb-wifi-firmware-converts-the-raspberry-pi-pico-w-into-a-driverless-usb-wifi-adapter-ppuzwbcnj","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/pico-usb-wifi-firmware-converts-the-raspberry-pi-pico-w-into-a-driverless-usb-wifi-adapter-ppuzwbcnj"},"datePublished":"2026-07-16T09:59:51.676Z","dateModified":"2026-07-17T06:00:16.916Z","description":"pico-usb-wifi is an open-source firmware project that turns a Raspberry Pi Pico W into a driverless USB WiFi adapter compatible with Windows, Linux, macOS, and...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/fbed31547c6c7644933bd2109b58784a?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/fbed31547c6c7644933bd2109b58784a?_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":370}},"commentCount":0,"discussionUrl":"https://daily.dev/posts/pico-usb-wifi-firmware-converts-the-raspberry-pi-pico-w-into-a-driverless-usb-wifi-adapter-ppuzwbcnj","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":1},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"networking,embedded,firmware","timeRequired":"PT3M"} {"@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":"pico-usb-wifi firmware converts the Raspberry Pi Pico W into a driverless USB WiFi adapter"}]} ```