https://hackaday.com/2026/05/20/spy-tech-a-quiet-radio-for-spies/Hackadayen2026-05-20T17:00:07+00:00Spy Tech: A Quiet Radio for Spiesspy, world war II, OSS, SOE, s-phone, joan eleanorhttps://hackaday.com/wp-content/uploads/2016/08/spyradio.jpg?w=250https://hackaday.com/2026/05/20/put-the-moon-on-your-desk/Hackadayen2026-05-20T15:30:26+00:00Put the Moon on Your Deskmoon, astronomy, circular display, ESP32, ESP32-S3https://hackaday.com/wp-content/uploads/2026/05/moon.jpg?w=250https://hackaday.com/2026/05/20/between-device-sharing-still-sucks/Hackadayen2026-05-20T14:00:24+00:00Between-Device Sharing Still Sucksbluetooth, networks, wi-fi, networking, file sharing, files, network sharehttps://hackaday.com/wp-content/uploads/2026/05/Sharing.jpg?w=250https://hackaday.com/2026/05/20/bring-back-that-aged-scanner-in-your-browser/Hackadayen2026-05-20T11:00:45+00:00Bring Back That Aged Scanner, in Your Browserscanner, webassembly, SANEhttps://hackaday.com/wp-content/uploads/2026/05/yes-we-scan-featured.jpg?w=250https://hackaday.com/2026/05/20/decaydock-keeps-track-of-spoilage/Hackadayen2026-05-20T08:00:52+00:00DecayDock Keeps Track of Spoilagefridge, food, ESP camera, smart fridgehttps://hackaday.com/wp-content/uploads/2026/05/F4CORNYMOKJUNEU-e1779002889521.webp?w=250https://hackaday.com/2026/05/19/using-3d-printers-to-make-circuit-boards/Hackadayen2026-05-20T05:00:31+00:00Using 3D Printers To Make Circuit Boardsdiy pcb, 3d printinghttps://hackaday.com/wp-content/uploads/2026/05/fast__pcb-feature.jpg?w=250https://hackaday.com/2026/05/19/building-a-device-to-map-magnetic-fields/Hackadayen2026-05-20T02:00:49+00:00Building A Device To Map Magnetic Fieldsscreen, magnetic field, ESP32https://hackaday.com/wp-content/uploads/2026/05/F4B67M8MOKJU9AJ-e1779002350266.webp?w=250https://hackaday.com/2026/05/19/the-8-bit-web-server/Hackadayen2026-05-19T23:00:00+00:00The 8-bit Web ServerAVR, HTTP, webserver, sliphttps://hackaday.com/wp-content/uploads/2026/05/avrweb.png?w=250https://hackaday.com/2026/05/19/building-a-pip-boy-themed-smartwatch/Hackadayen2026-05-19T20:00:19+00:00Building a Pip Boy Themed Smartwatchwatch, Fallout, pip-boy, smartwatchhttps://hackaday.com/wp-content/uploads/2026/05/Satisfying-Make-Your-Own-Fallout-Smart-Watch-7-19-screenshot.png?w=250https://hackaday.com/2026/05/19/recreating-a-broken-laminated-wooden-furniture-part/Hackadayen2026-05-19T18:30:29+00:00Recreating a Broken Laminated Wooden Furniture Partfurniture, laminatedhttps://hackaday.com/wp-content/uploads/2026/05/recreating_laminated_furniture_part_johns_furniture_repair_youtube.jpg?w=250https://hackaday.com/2026/05/19/how-pulse-oximetry-figures-out-your-blood-oxygen-levels/Hackadayen2026-05-19T17:00:07+00:00How Pulse Oximetry Figures Out Your Blood Oxygen Levelsmedicine, blood, pulse oximeter, heart, Pulse oximetry, pulse rate, medical hacks, oxygen saturationhttps://hackaday.com/wp-content/uploads/2015/04/biomedical.jpg?w=250https://hackaday.com/2026/05/19/biofeedback-butterfly-beats-with-a-pulse/Hackadayen2026-05-19T15:30:00+00:00Biofeedback Butterfly Beats With a Pulsebutterfly, biofeedback, Arduino Uno, 3d printed, Pulse oximetryhttps://hackaday.com/wp-content/uploads/2026/05/FEQEL4MMOKJU7BC_548ea6-e1779001585273.webp?w=250https://hackaday.com/2026/05/19/how-search-engines-enabled-finding-needles-in-a-www-sized-haystack/Hackadayen2026-05-19T14:00:27+00:00How Search Engines Enabled Finding Needles in a WWW-Sized Haystacksearch engine, world wide web, internet searchhttps://hackaday.com/wp-content/uploads/2026/04/SearchEngine.jpg?w=250https://hackaday.com/2026/05/19/remembering-the-tech-we-lost-with-a-virtual-graveyard/Hackadayen2026-05-19T11:00:45+00:00Remembering the Tech We Lost With a Virtual Graveyardobituaryhttps://hackaday.com/wp-content/uploads/2026/05/rip_so_digital_graveyard.jpg?w=250https://hackaday.com/2026/05/18/digital-organizer-given-modern-upgrade/Hackadayen2026-05-19T05:00:20+00:00Digital Organizer Given Modern Upgraderaspberry pi, organizer, digital organizerhttps://hackaday.com/wp-content/uploads/2026/05/1995-digital-organizer-gets-2nd-life-v0-ghjfbsyrr81h1-e1778999898832.webp?w=250https://hackaday.com/2026/05/18/prolog-via-pokemon/Hackadayen2026-05-19T02:00:33+00:00Prolog Via Pokémonpokemon, prologhttps://hackaday.com/wp-content/uploads/2026/05/poke.png?w=250https://hackaday.com/2026/05/18/electroplating-3d-prints-without-requiring-a-big-vat/Hackadayen2026-05-18T23:00:37+00:00Electroplating 3D Prints Without Requiring a Big Vat3d print, electroplatinghttps://hackaday.com/wp-content/uploads/2026/05/electroplate_3d_print_hen3drik_youtube.jpg?w=250https://hackaday.com/2026/05/18/voltmeter-clock-has-the-time-dialled-in/Hackadayen2026-05-18T20:00:01+00:00Voltmeter Clock Has The Time Dialled Inclock, voltmeter, voltmeter clockhttps://hackaday.com/wp-content/uploads/2026/05/b5d890c5-76a0-4e16-b076-8671682e26e7_2000x1334_03bec6-e1778999417158.webp?w=250https://hackaday.com/2026/05/18/long-range-night-vision-with-an-infrared-laser/Hackadayen2026-05-18T18:30:02+00:00Long-Range Night Vision with an Infrared Laserinfrared, night vision, infrared camera, automated laser turret, NIR, night vision camerahttps://hackaday.com/wp-content/uploads/2026/05/long_range_night_vision.png?w=250