I love the electronics videos Collin Cunningham produces for Make: Online. Not only does he describe his projects in an entertaining way, he also scores the trippy music for them.
After checking out a few projects involving IR heart monitors, I decided to have a go at the interface myself. Seen above are the results of my first experimentation with pulse oximetry. Getting the setup up and running satisfactorily required a bit more time and tinkering than I'd expected - especially after reversing a premature mod to my emitter/detector pair. The next version I try will either use a higher output emitter (see Charles Martin's version) or some amplification hardware (as used in Meng Li's sensor).
SOG’s $60 Sync II “wearable belt buckle” multitool isn’t the only multitool/buckle on the market, but it does add a couple very sensible innovations, like a clip-on/clip-off base that lets you use your tool without taking off your belt, and a squared-off form factor (like a pair of folding travel sewing scissors) that adapts the […]
This week on Cool Tools’ Maker Update: Kitty Grabs Gold, a beer cooler that follows you, the Circuit Playground Express, Adafruit and Microsoft, Other Machine Co. and Bre Pettis, Tinkercad Lego export, a great kit for gadget and toy hacking, and Maker Faires. Our featured Cool Tool is the iFixit Electronics Tool Kit. Check out […]
If you don’t want to get stuck footing the bill for a hit and run, this dashboard-mounted camera offers up to 2K resolution to make sure you always have a reliable witness, and it’s available in the Boing Boing Store for 30% off it’s usual price.The PapaGo mounts unobtrusively to your windshield to see everything […]
While some people still maintain that everything in Apple’s walled garden “just works” and is immune to the rampant malware of the Windows world, the reality is different. The Mac’s growing market share has made it a much more viable target for malicious actors, and its built-in tools aren’t always enough to fix things. Drive […]
Boasting an IPX6 waterproof rating, the Trakk Bullet Ultra Compact Waterproof Bluetooth Speaker resists dust and heavy rainfall. It’s currently available in the Boing Boing Store.The Trakk Bullet offers the same wireless convenience as other portable speakers, but few are built as tough as this one. Its utilitarian construction is designed to be a totally low-maintenance […]