--- title: Transmitting Analog Video Via Frikkin’ Laser Beams description: A hobbyist project called LYME 101 demonstrates transmitting live analog composite video through the air using a red laser diode. A Raspberry Pi generates the... canonical: https://daily.dev/posts/transmitting-analog-video-via-frikkin-laser-beams-oyr1ogvnq twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Transmitting Analog Video Via Frikkin’ Laser Beams | daily.dev og:description: A hobbyist project called LYME 101 demonstrates transmitting live analog composite video through the air using a red laser diode. A Raspberry Pi generates the... og:url: https://daily.dev/posts/transmitting-analog-video-via-frikkin-laser-beams-oyr1ogvnq og:image: https://api.daily.dev/og/posts/oyR1OgVNQ.png og:image:alt: Transmitting Analog Video Via Frikkin’ Laser Beams 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. # Transmitting Analog Video Via Frikkin’ Laser Beams **[Hackaday](https://daily.dev/sources/hackaday)** · 2 min read · 0 upvotes · 0 comments ## Summary A hobbyist project called LYME 101 demonstrates transmitting live analog composite video through the air using a red laser diode. A Raspberry Pi generates the composite video signal, which modulates the laser via a 2N2222 NPN transistor. The receiver uses a BPW34 photodiode in reverse bias fed through an LM318N op-amp, with a dual 9V battery supply for clean power. The signal works with a CRT and, with some tuning via a terminator resistor and DC bias pot, also with a USB capture card. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Questions this post answers ### How can I build a laser transmitter to send analog composite video signals through the air? A Raspberry Pi generates a composite video signal that modulates a red laser diode via a 2N2222 NPN transistor and passive components. On the receiving end, a BPW34 photodiode, reverse-biased for faster response, feeds an LM318N op-amp to recover the signal. A pair of 9V batteries provides a noiseless dual +9V/-9V supply, and a terminator resistor plus DC bias pot help the signal work with a USB capture card. _Explore more analog video and laser hardware hacks like this curated on daily.dev._ ## Similar posts on daily.dev - [Analog Video From An 8-Bit Microcontroller](https://daily.dev/posts/analog-video-from-an-8-bit-microcontroller-a5lgpcwfn) · Hackaday · 0 upvotes · 0 comments - [Solve Your TTL Video Woes With An RP2350](https://daily.dev/posts/solve-your-ttl-video-woes-with-an-rp2350-lnsrj8zzl) · Hackaday · 0 upvotes · 0 comments - [60fps Video on a CGA?](https://daily.dev/posts/60fps-video-on-a-cga--6dmcdlx1s) · Two Stop Bits · 0 upvotes · 0 comments - [Converting hot dog plasma video to sound with OpenCV](https://daily.dev/posts/converting-hot-dog-plasma-video-to-sound-with-opencv-anys7cqoo) · Jeff Geerling · 0 upvotes · 0 comments --- Tags: [#raspberry-pi](https://daily.dev/tags/raspberry-pi) [View this post on daily.dev](https://daily.dev/posts/transmitting-analog-video-via-frikkin-laser-beams-oyr1ogvnq) ```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":"Transmitting Analog Video Via Frikkin’ Laser Beams","url":"https://daily.dev/posts/transmitting-analog-video-via-frikkin-laser-beams-oyr1ogvnq","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/transmitting-analog-video-via-frikkin-laser-beams-oyr1ogvnq"},"datePublished":"2026-08-09T14:05:54.235Z","dateModified":"2026-09-13T18:54:47.479Z","description":"A hobbyist project called LYME 101 demonstrates transmitting live analog composite video through the air using a red laser diode. 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On the receiving end, a BPW34 photodiode, reverse-biased for faster response, feeds an LM318N op-amp to recover the signal. A pair of 9V batteries provides a noiseless dual +9V/-9V supply, and a terminator resistor plus DC bias pot help the signal work with a USB capture card. Explore more analog video and laser hardware hacks like this curated on daily.dev."}}]} ```