--- title: Wireless LCD Streaming For The ANENG AN870 Multimeter description: A hardware hacker reverse-engineered the LCD signal lines of the budget ANENG AN870 digital multimeter to wirelessly stream its display data. The project uses... canonical: https://daily.dev/posts/wireless-lcd-streaming-for-the-aneng-an870-multimeter-j4tznv4gl twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Wireless LCD Streaming For The ANENG AN870 Multimeter | daily.dev og:description: A hardware hacker reverse-engineered the LCD signal lines of the budget ANENG AN870 digital multimeter to wirelessly stream its display data. The project uses... og:url: https://daily.dev/posts/wireless-lcd-streaming-for-the-aneng-an870-multimeter-j4tznv4gl og:image: https://api.daily.dev/og/posts/j4TzNV4gl.png og:image:alt: Wireless LCD Streaming For The ANENG AN870 Multimeter 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. # Wireless LCD Streaming For The ANENG AN870 Multimeter **[Hackaday](https://daily.dev/sources/hackaday)** · 2 min read · 1 upvotes · 1 comments ## Summary A hardware hacker reverse-engineered the LCD signal lines of the budget ANENG AN870 digital multimeter to wirelessly stream its display data. The project uses an RP2040 Zero and HC-12 433 MHz transceiver inside the DMM, paired with an HC-12 and ESP32-C3 on the receiving end. A custom PCB maps the LCD segments and transmits display state over WiFi, enabling the meter's readings to appear as an OBS overlay instead of relying on a camera feed. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Questions this post answers ### How do you stream a multimeter's LCD display wirelessly to a computer for OBS overlay? By tapping the multiplexed LCD signal lines directly with a custom PCB installed inside the meter, mapping the LCD segments, and sending the reconstructed display state wirelessly. The ANENG AN870 project uses an RP2040 Zero and HC-12 433 MHz transceiver on the meter side, paired with another HC-12 and an ESP32-C3 on the receiving side, which serves the data over WiFi. _Explore more hardware reverse-engineering builds like this DMM overlay project on daily.dev._ ## Community discussion Top comments from developers on daily.dev. **@tonyd** · 0 upvotes > Now that's an impressive project! We need more of this! ## Similar posts on daily.dev - [Teardown Of An USB-C Cable With Integrated LCD](https://daily.dev/posts/teardown-of-an-usb-c-cable-with-integrated-lcd-4vqfqqnna) · Hackaday · 1 upvotes · 0 comments - [Someone turned old analog gauges into real-time PC monitors using an ESP32](https://daily.dev/posts/someone-turned-old-analog-gauges-into-real-time-pc-monitors-using-an-esp32-hwl51mnkw) · XDA Developers · 1 upvotes · 0 comments - [New Display For Old Multimeter](https://daily.dev/posts/new-display-for-old-multimeter-o4i6wteeq) · Hackaday · 0 upvotes · 0 comments - [A nicer voltmeter clock](https://daily.dev/posts/a-nicer-voltmeter-clock-oty8wvnel) · Hacker News · 0 upvotes · 0 comments - [Elecrow CrowPanel Advanced HMI Display Review: A Tinkerer's Touchscreen](https://daily.dev/posts/elecrow-crowpanel-advanced-hmi-display-review-a-tinkerer-s-touchscreen-9akh9nkvh) · It's Foss · 0 upvotes · 0 comments --- Tags: [#iot](https://daily.dev/tags/iot), [#reverse-engineering](https://daily.dev/tags/reverse-engineering) [View this post on daily.dev](https://daily.dev/posts/wireless-lcd-streaming-for-the-aneng-an870-multimeter-j4tznv4gl) ```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":"Wireless LCD Streaming For The ANENG AN870 Multimeter","url":"https://daily.dev/posts/wireless-lcd-streaming-for-the-aneng-an870-multimeter-j4tznv4gl","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/wireless-lcd-streaming-for-the-aneng-an870-multimeter-j4tznv4gl"},"datePublished":"2026-07-17T08:10:03.732Z","dateModified":"2026-09-13T19:27:49.018Z","description":"A hardware hacker reverse-engineered the LCD signal lines of the budget ANENG AN870 digital multimeter to wirelessly stream its display data. 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We need more of this!","datePublished":"2026-07-17T10:55:10.837Z","url":"https://daily.dev/posts/j4TzNV4gl#c-NYNKoUkEQ","author":{"@type":"Person","name":"Anthony DelSorbo","url":"https://daily.dev/tonyd","image":"https://avatars1.githubusercontent.com/u/16364999?v=4"}}]} {"@context":"https://schema.org","@type":"FAQPage","@id":"https://daily.dev/posts/wireless-lcd-streaming-for-the-aneng-an870-multimeter-j4tznv4gl#faq","mainEntity":[{"@type":"Question","name":"How do you stream a multimeter's LCD display wirelessly to a computer for OBS overlay?","acceptedAnswer":{"@type":"Answer","text":"By tapping the multiplexed LCD signal lines directly with a custom PCB installed inside the meter, mapping the LCD segments, and sending the reconstructed display state wirelessly. The ANENG AN870 project uses an RP2040 Zero and HC-12 433 MHz transceiver on the meter side, paired with another HC-12 and an ESP32-C3 on the receiving side, which serves the data over WiFi. 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