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/

Kei trucks are some of the smallest commercial vehicles out on the roads today. You can also get lots of cute kei RC cars if you’re into the toy side …read more (https://hackaday.com/2026/04/16/building-a-big-rc-mini-truck/)