--- title: This ESP32-S3 project does what a $300 hardware analysis... description: ESP32 Bit Pirate is a free, open-source firmware that turns an $8 ESP32-S3 board into a multi-protocol hardware analysis and hacking tool, comparable to a Bus... canonical: https://daily.dev/posts/this-esp32-s3-project-does-what-a-300-hardware-analysis-tool-does-and-it-costs-almost-nothing-kldhgrdfk twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: This ESP32-S3 project does what a $300 hardware analysis tool does, and it costs almost nothing | daily.dev og:description: ESP32 Bit Pirate is a free, open-source firmware that turns an $8 ESP32-S3 board into a multi-protocol hardware analysis and hacking tool, comparable to a Bus... og:url: https://daily.dev/posts/this-esp32-s3-project-does-what-a-300-hardware-analysis-tool-does-and-it-costs-almost-nothing-kldhgrdfk og:image: https://api.daily.dev/og/posts/KLdhGRdfK.png og:image:alt: This ESP32-S3 project does what a $300 hardware analysis tool does, and it costs almost nothing 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. # This ESP32-S3 project does what a $300 hardware analysis tool does, and it costs almost nothing **[XDA Developers](https://daily.dev/sources/xda-developers)** · 4 min read · 2 upvotes · 0 comments ## Summary ESP32 Bit Pirate is a free, open-source firmware that turns an $8 ESP32-S3 board into a multi-protocol hardware analysis and hacking tool, comparable to a Bus Pirate or Flipper Zero costing hundreds of dollars. It supports I2C, SPI, UART, CAN, Sub-GHz, Wi-Fi, BLE, infrared, and more — all accessible via a browser-based Web Serial terminal or Python scripting. An optional dock accessory handles voltage level shifting from 1.8V to 5V. No custom sketches are needed; users pick a mode and run predefined commands, making it practical for hardware debugging, security research, and electronics exploration. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [You can now buy the ESP32-S31 development board, and it's pretty cheap](https://daily.dev/posts/you-can-now-buy-the-esp32-s31-development-board-and-it-s-pretty-cheap-khnshyuty) · XDA Developers · 1 upvotes · 0 comments - [I built a Zigbee sniffer on a $60 ESP32 screen, and now I can watch my smart home talk to itself](https://daily.dev/posts/i-built-a-zigbee-sniffer-on-a-60-esp32-screen-and-now-i-can-watch-my-smart-home-talk-to-itself-stmbiva5e) · XDA Developers · 0 upvotes · 0 comments --- Tags: [#open-source](https://daily.dev/tags/open-source), [#iot](https://daily.dev/tags/iot), [#embedded](https://daily.dev/tags/embedded), [#firmware](https://daily.dev/tags/firmware) [View this post on daily.dev](https://daily.dev/posts/this-esp32-s3-project-does-what-a-300-hardware-analysis-tool-does-and-it-costs-almost-nothing-kldhgrdfk) ```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":"This ESP32-S3 project does what a $300 hardware analysis tool does, and it costs almost nothing","url":"https://daily.dev/posts/this-esp32-s3-project-does-what-a-300-hardware-analysis-tool-does-and-it-costs-almost-nothing-kldhgrdfk","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/this-esp32-s3-project-does-what-a-300-hardware-analysis-tool-does-and-it-costs-almost-nothing-kldhgrdfk"},"datePublished":"2026-07-29T15:00:31.962Z","dateModified":"2026-07-29T15:00:56.151Z","description":"ESP32 Bit Pirate is a free, open-source firmware that turns an $8 ESP32-S3 board into a multi-protocol hardware analysis and hacking tool, comparable to a Bus...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/a49b190d40cd925210cfccc69f91b5bf?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/a49b190d40cd925210cfccc69f91b5bf?_a=AQAEuop","isAccessibleForFree":true,"articleSection":"XDA Developers","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":"XDA Developers","logo":"https://media.daily.dev/image/upload/s--kCg6yyAP--/f_auto,q_auto/v1774964407/logos/xda-developers?_a=BAMAMiWQ0","url":"https://daily.dev/sources/xda-developers"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/this-esp32-s3-project-does-what-a-300-hardware-analysis-tool-does-and-it-costs-almost-nothing-kldhgrdfk","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":2},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"open-source,iot,embedded,firmware","timeRequired":"PT4M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"XDA Developers","item":"https://daily.dev/sources/xda-developers"},{"@type":"ListItem","position":3,"name":"This ESP32-S3 project does what a $300 hardware analysis tool does, and it costs almost nothing"}]} ```