Emergency Bolt-Action Launcher for EpiPens
https://hackaday.com/2026/04/16/emergency-bolt-action-launcher-for-epipens/

Imagine you and your friend are enjoying a nice sunny day, and BAM — they start to have a severe allergic reaction to who knows what. You have an EpiPen, …read more (https://hackaday.com/2026/04/16/emergency-bolt-action-launcher-for-epipens/)

The Kentucky Cave Wars, and Going Viral in 1925
https://hackaday.com/2026/04/16/the-kentucky-cave-wars-and-going-viral-in-1925/

Information, it seems, flows at the speed of media. In the old days, information traveled with people on ships or horses, so if, say, a battle was won or lost, …read more (https://hackaday.com/2026/04/16/the-kentucky-cave-wars-and-going-viral-in-1925/)

Desktop Digitizer Makes Note Capture a Breeze
https://hackaday.com/2026/04/16/desktop-digitizer-makes-note-capture-a-breeze/

While it might seem quaint these days, we’ve met many makers and hackers who reach for a pen and a pad when learning something new or working their way through …read more (https://hackaday.com/2026/04/16/desktop-digitizer-makes-note-capture-a-breeze/)

FPGA Powers DIY USB Scope and Signal Generator
https://hackaday.com/2026/04/16/fpga-powers-diy-usb-scope-and-signal-generator/

Oscilloscopes and to lesser extent signals generators are useful tools for analyzing, testing and diagnosing circuits but we often take for granted how they work. Luckily, [FromConceptToCircuit] is here to …read more (https://hackaday.com/2026/04/16/fpga-powers-diy-usb-scope-and-signal-generator/)

Do We Really Need Another Development Board?
https://hackaday.com/2026/04/16/do-we-really-need-another-development-board/

It’s fair to say that there are a lot of development board form factors for MCUs, with [Tech Dregs] over on yonder YouTube on the verge of adding another one …read more (https://hackaday.com/2026/04/16/do-we-really-need-another-development-board/)

Comparing 12 VDC Air Fryers with Regular 240 VAC Ones
https://hackaday.com/2026/04/16/comparing-12-vdc-air-fryers-with-regular-240-vac-ones/

That boiling water is a contentious topic of discussion is clear, but what about hot air? When you take a 12 VDC, 280 Watt-rated air fryer and pit it against …read more (https://hackaday.com/2026/04/16/comparing-12-vdc-air-fryers-with-regular-240-vac-ones/)

Building a Big RC Mini Truck
https://hackaday.com/2026/04/16/building-a-big-rc-mini-truck/