Lessons Learned After Trying MeshCore for Off-grid Text Messaging [Michael Lynch] recently decided to delve into the world of off-grid, decentralized communications with MeshCore, because being able to communicate wirelessly with others in a way that does not depend https://hackaday.com/2025/12/06/lessons-learned-after-trying-meshcore-for-off-grid-text-messaging/ https://hackaday.com/2025/12/06/lessons-learned-after-trying-meshcore-for-off-grid-text-messaging/

Bridging RTL-433 To Home Assistant If you’ve got an RTL-SDR compatible receiver, you’ve probably used it for picking up signals from all kinds of weird things. Now, [Jaron McDaniel] has built a tool to integrate https://hackaday.com/2025/12/06/bridging-rtl-433-to-home-assistant/ https://hackaday.com/2025/12/06/bridging-rtl-433-to-home-assistant/

Emulate ROMs at 12MHz With Pico2 PIO Nothing lasts forever, and that includes the ROMs required to make a retrocomputer run. Even worse, what if you’re rolling your own firmware? Period-appropriate EPROMs and their programmers aren’t always https://hackaday.com/2025/12/06/emulate-roms-at-12mhz-with-pico2-pio/ https://hackaday.com/2025/12/06/emulate-roms-at-12mhz-with-pico2-pio/

Electronic Dice Built The Old Fashioned Way If you wanted to build an electronic dice, you might grab an Arduino and a nice OLED display to whip up something fancy. You could even choose an ESP32 and https://hackaday.com/2025/12/06/electronic-dice-built-the-old-fashioned-way/ https://hackaday.com/2025/12/06/electronic-dice-built-the-old-fashioned-way/

Sudo Clean Up My Workbench [Engineezy] might have been watching a 3D printer move when inspiration struck: Why not build a robot arm to clean up his workbench? Why not, indeed? Well, all you need https://hackaday.com/2025/12/06/sudo-clean-up-my-workbench/ https://hackaday.com/2025/12/06/sudo-clean-up-my-workbench/

Adding Electronics to a Classic Game Like many classic board games, Ludo offers its players numerous opportunities to inflict frustration on other players. Despite this, [Viktor Takacs] apparently enjoys it, which motivated him to build a https://hackaday.com/2025/12/05/adding-electronics-to-a-classic-game/ https://hackaday.com/2025/12/05/adding-electronics-to-a-classic-game/

Magic Magikarp Makes Moves One of the most influential inventions of the 20th century was Big Mouth Billy Bass. A celebrity bigger than the biggest politicians or richest movie stars, there’s almost nothing that https://hackaday.com/2025/12/05/magic-magikarp-makes-moves/ https://hackaday.com/2025/12/05/magic-magikarp-makes-moves/

Garage Fridge Gets New DIY Controller [Rick] had a problem. His garage refrigerator was tasked with a critical duty—keeping refreshing beverages at low temperature. Unfortunately, it had failed—the condenser was forever running, or not running at https://hackaday.com/2025/12/05/garage-fridge-gets-new-diy-controller/ https://hackaday.com/2025/12/05/garage-fridge-gets-new-diy-controller/

Reason versus Sentimental Attachment for Old Projects We have probably all been there: digging through boxes full of old boards for projects and related parts. Often it’s not because we’re interested in the contents of said box, https://hackaday.com/2025/12/05/reason-versus-sentimental-attachment-for-old-projects/ https://hackaday.com/2025/12/05/reason-versus-sentimental-attachment-for-old-projects/

Hackaday Podcast Episode 348: 50 Grams of PLA Hold a Ton, Phreaknic Badge is Off The Shelf, and Hackers Need Repair Manuals Join Hackaday Editors Elliot Williams and Tom Nardi as they go over their picks for the best stories and hacks from the previous week. Things start off with a warning https://hackaday.com/2025/12/05/hackaday-podcast-episode-348-50-grams-of-pla-hold-a-ton-phreaknic-badge-is-off-the-shelf-and-hackers-need-repair-manuals/ https://hackaday.com/2025/12/05/hackaday-podcast-episode-348-50-grams-of-pla-hold-a-ton-phreaknic-badge-is-off-the-shelf-and-hackers-need-repair-manuals/