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).
Plastic is so 2013. You don’t want to buy something only to throw it away or lose it and barely care. You like nice things and want to hang onto them. The Plazmatic lighter here is a high quality, high tech alternative to the typical cheap, plastic lighter you get at the old gas station. […]
Real engineers build things. Super cool engineers build things with their hands and fingers, like our engineering forefathers did. No idea where to even begin to do that? This step by step Arduino course is now 92% off and is going to get you up and running, from zero to hero, in no time. So […]
How do Google and YouTube really work? It turns out, Python kind of runs things around those parts. And with this bootcamp, you’ll get whipped into shape and ready to start programming yourself. Whether you’re a Python pro and just want to sharpen your skills, or a total tech newbie with little or no coding […]