Building an IR Thermometer That Fits on Your Keychain
https://hackaday.com/2024/07/05/building-an-ir-thermometer-that-fits-on-your-keychain/

Non-contact infrared (IR) thermometers used to be something of an exotic tool, but thanks at least in part due to the COVID-19 pandemic, they’re now the sort of thing you …read more (https://hackaday.com/2024/07/05/building-an-ir-thermometer-that-fits-on-your-keychain/)

New Solar Spheres Claim to be Better than Solar Panels
https://hackaday.com/2024/07/06/new-solar-spheres-claim-to-be-better-than-solar-panels/

When you think of solar energy, you probably think of flat plates on rooftops. A company called WAVJA wants you to think of spheres. The little spheres, ranging from one …read more (https://hackaday.com/2024/07/06/new-solar-spheres-claim-to-be-better-than-solar-panels/)

Candle Powered Lantern Isn’t as Silly as You Think
https://hackaday.com/2024/07/06/candle-powered-lantern-isnt-as-silly-as-you-think/

[Gilles Messier] at the Our Own Devices YouTube channel recently took a look at an interesting device — an electric lantern powered by a candle. At first glance, this sounds …read more (https://hackaday.com/2024/07/06/candle-powered-lantern-isnt-as-silly-as-you-think/)

Halfway Between Inspiration and Engineering
https://hackaday.com/2024/07/06/halfway-between-inspiration-and-engineering/

We see a lot of hacks where the path to success is pretty obvious, if maybe strewn with all sorts of complications, land-mines, and time-sinks. Then we get other hacks …read more (https://hackaday.com/2024/07/06/halfway-between-inspiration-and-engineering/)

Arduino PLC Keeps the Beat
https://hackaday.com/2024/07/06/arduino-plc-keeps-the-beat/

For most of our prototype, hobby, or one-off electronics projects it’s perfectly fine to use a development platform like an Arduino Uno or something to that effect. They’re both easy …read more (https://hackaday.com/2024/07/06/arduino-plc-keeps-the-beat/)

2024 Business Card Challenge: a Battery Tester with Blinkenlights
https://hackaday.com/2024/07/06/2024-business-card-challenge-a-battery-tester-with-blinkenlights/

Readers of a certain vintage will no doubt remember that for a brief time, some alkaline batteries came with a built-in battery tester. Basically, you just pushed really hard with …read more (https://hackaday.com/2024/07/06/2024-business-card-challenge-a-battery-tester-with-blinkenlights/)

Full-Scale Flying DeLorean Gets Closer to Liftoff
https://hackaday.com/2024/07/06/full-scale-flying-delorean-gets-closer-to-liftoff/