--- title: Make Your Own ESP32-Based Person Sensor, No Special... description: ESPectre is an open source motion detector that uses an ESP32 dev board to detect human movement by analyzing Wi-Fi channel state information (CSI), without... canonical: https://daily.dev/posts/make-your-own-esp32-based-person-sensor-no-special-hardware-needed-dfp3mevmp twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Make Your Own ESP32-Based Person Sensor, No Special Hardware Needed | daily.dev og:description: ESPectre is an open source motion detector that uses an ESP32 dev board to detect human movement by analyzing Wi-Fi channel state information (CSI), without... og:url: https://daily.dev/posts/make-your-own-esp32-based-person-sensor-no-special-hardware-needed-dfp3mevmp og:image: https://api.daily.dev/og/posts/Dfp3MevmP.png og:image:alt: Make Your Own ESP32-Based Person Sensor, No Special Hardware Needed 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. # Make Your Own ESP32-Based Person Sensor, No Special Hardware Needed **[Hackaday](https://daily.dev/sources/hackaday)** · 2 min read · 0 upvotes · 0 comments ## Summary ESPectre is an open source motion detector that uses an ESP32 dev board to detect human movement by analyzing Wi-Fi channel state information (CSI), without requiring cameras, microphones, or specialized hardware. The system works similarly to mmWave radar by detecting disturbances in wireless signals when people move, can penetrate walls unlike PIR sensors, and integrates with Home Assistant. A browser-based demo game lets users test the sensor's capabilities via USB connection. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Motion detection system based on Wi-Fi spectre analysis \(CSI\), with Home Assistant integration.](https://daily.dev/posts/motion-detection-system-based-on-wi-fi-spectre-analysis-csi-with-home-assistant-integration--qo37bhgwk) · Hacker News · 2 upvotes · 0 comments - [I turned Wi-Fi signal into a home motion sensor using an ESP32, and it now controls my smart devices](https://daily.dev/posts/i-turned-wi-fi-signal-into-a-home-motion-sensor-using-an-esp32-and-it-now-controls-my-smart-devices-fdaqhj3zn) · XDA Developers · 2 upvotes · 0 comments - [Scanning For Lifesigns With ESP32 And Raspberry Pi](https://daily.dev/posts/scanning-for-lifesigns-with-esp32-and-raspberry-pi-nfkwqkwyv) · Hackaday · 0 upvotes · 0 comments - [6 smart home devices anyone can build with a cheap ESP32 and an even cheaper sensor](https://daily.dev/posts/6-smart-home-devices-anyone-can-build-with-a-cheap-esp32-and-an-even-cheaper-sensor-alpetqwxv) · XDA Developers · 0 upvotes · 0 comments - [My first ESP32 sensor solved a real problem, and now I'm building new projects every week](https://daily.dev/posts/my-first-esp32-sensor-solved-a-real-problem-and-now-i-m-building-new-projects-every-week-xg2qcsehh) · XDA Developers · 0 upvotes · 0 comments --- Tags: [#iot](https://daily.dev/tags/iot), [#embedded](https://daily.dev/tags/embedded) [View this post on daily.dev](https://daily.dev/posts/make-your-own-esp32-based-person-sensor-no-special-hardware-needed-dfp3mevmp) ```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":"Make Your Own ESP32-Based Person Sensor, No Special Hardware Needed","url":"https://daily.dev/posts/make-your-own-esp32-based-person-sensor-no-special-hardware-needed-dfp3mevmp","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/make-your-own-esp32-based-person-sensor-no-special-hardware-needed-dfp3mevmp"},"datePublished":"2026-01-28T12:30:13.717Z","dateModified":"2026-01-28T12:30:33.455Z","description":"ESPectre is an open source motion detector that uses an ESP32 dev board to detect human movement by analyzing Wi-Fi channel state information (CSI), without...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/f11de366c19b8ee2d9b9b6efcc026a81?_a=AQAEulh","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/f11de366c19b8ee2d9b9b6efcc026a81?_a=AQAEulh","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/make-your-own-esp32-based-person-sensor-no-special-hardware-needed-dfp3mevmp","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"iot,embedded","timeRequired":"PT2M"} {"@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":"Make Your Own ESP32-Based Person Sensor, No Special Hardware Needed"}]} ```