Collaborate Disseminate
We’re probably all familiar with the Hall Effect, at least to the extent that it can be used to make solid-state sensors for magnetic fields. It’s a cool bit of …read more Continue reading Shine On You Crazy Diamond Quantum Magnetic Sensor
Laser microphones have been around since the Cold War. Back in those days, they were a favorite tool of the KGB – allowing spies to listen in on what was …read more Continue reading Spy Tech: Build Your Own Laser Eavesdropper
Electricity can be a pretty handy tool when it stays within the bounds of its wiring. It’s largely responsible for our modern world and its applications are endless. When it’s …read more Continue reading Ultra-Low Power Soil Moisture Sensor
Your garden variety motion detector uses IR, but these days, there are fancier technologies for achieving similar goals. If so desired, you can source yourself a microwave-based presence sensor instead. …read more Continue reading Microwave Motion Detector Notifies Your Smart Phone
There’s a school of thought that says you shouldn’t mess around with a solution that’s already working, but that’s never seemed to stop anyone in this community. When [Skye] was …read more Continue reading Fully Submerge This Modernized pH Sensor
Pretty much every modern car has some driver assistance feature, such as lane departure and blind-spot warnings, or adaptive cruise control. They’re all pretty cool, and they all depend on …read more Continue reading Fundamentals of FMCW Radar Help You Understand Your Car’s Point of View
Usually, when you need to sense something in a project, the answers are straightforward. Want to sense air temperature? There’s a sensor for that. Particulate content in the air? There’s …read more Continue reading Why Use a Sensor When a Pseudo-Sensor Will Do?
LEDs are a wonderful technology. You put in a little bit of power, and you get out a wonderful amount of light. They’re efficient, cheap, and plentiful. We use them …read more Continue reading You Can Use LEDs As Sensors, Too
Wait a second, read that title again. This isn’t a throwback 3D printing project at all. That’s “RepTrap” as in reptile trap, and it’s a pretty clever way to study …read more Continue reading RepTrap Keeps Watch Over Our Cold-Blooded Friends
The MAX30105 is an optical sensor capable of a great many things. It can sense particulate matter in the air, or pick up the blinking of an eye. Or, you …read more Continue reading This Air Particulate Sensor Can Also Check Your Pulse Rate