- 2
- 2 333
Voltative
United States
Приєднався 31 гру 2023
Electrical engineering where I never grew out of the sense of wonder.
Oscilloscope Watch Review
After backing the project on Kickstarter a little over 10 years ago, in October 2013, the "oscilloscope watch" by Gabotronics finally arrived in December 2023. Was the 10-year wait worth it? Jeff takes the watch for a spin to see.
Переглядів: 376
Відео
The secret feature in every LED: a solar cell
Переглядів 2 тис.5 місяців тому
Did you know that all LEDs have a secret feature? Not only can they convert electricity into light, they can also do the opposite: turn light into electricity, just like little solar cells! In this video, Jeff looks at the use of LEDs not only as power-generation devices, but also as photodiodes to detect transmitted light signals. It's a little bit of practical electrical engineering on the la...
no thank you
They shoulda put some of those jumpers into the strap!
Pretty cool, shrinking the Xprotolab down to a watch! Now you just have to find a way to incorporate the test leads into the watchband.
It's pretty cool, for a low price point prototype. I wouldn't mind having one, but I wouldn't pay over $75 and I wouldn't wait 10 years. That said, I couldn't design and program one, might be able to assemble it. That's an impressive accomplishment.
Just add a couple of tabs to the back plug it in stick it on your girlfriend's wrist and you know if she's lying to you
I don't have a girlfriend, but I would like to know when I am lying to myself. Seriously though, props to them keeping on going, and delivering. Nobody has made anything on the project.
Forrest Mims demonstrated this in the early 80s, that's where I first found this out. Awesome video.
Great overview/demos, and cool idea re: Tx/Rx. Some notes: Allegedly they are more sensitive to shorter wavelengths than they're designed to emit. Also, watch out for *color*-phosphor-coated LEDs... (e.g. blue with red or green phosphor rather'n white). They do exist in the wild...
Right you are about the peak response wavelength being *shorter* than the peak emission wavelength! Video description has been updated.
Welcome to UA-cam! Wondering if any custom PCBs may help for the upcoming content? Would love to sponsor if needed. (PCBWay zoey)