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November 5, 2006
about 5 months ago
The short options is useful to zero the system minimum resistance if you were to use this as a precision load. But this can’t really offer precision measurements anyway.
Unfortunately this is a very poorly designed resistor box with accumulating errors everywhere. This should only be used for rough measurements…
about 7 months ago
The power supply does not need to provide 2.8A. It only needs to provide at most 700mA, actually a lot less since you won’t be running them at the full current.
about 10 months ago
Does anyone know if there is a variety of this LED in a 10mm diffused format?
about 2 years ago
Can someone please comment on the price of these units? Were they always $189? Or where they used to be $99?
about 3 years ago
This would have made the RGB Fiber Communication experiment much easier!
News - RGB Fiber Optics
about 3 years ago
Yes, the detector has three identical photo-diodes with red, green and blue optical filter arrays in front of them.
The RC filters convert the PWM to analog and thus the constellation is 8-PAM. If I were to leave it as PWM and detect the duty-cycle directly, then the constellation is PWM with 8-duty-cycle. Also, thanks for the kind comments.
I think they already do. With TX and RX modules as well.
Hi! This is Shahriar, the host of The Signal Path. Thank you Sparkfun for featuring one of my videos. I’d like to point out that wavelength division multiplexing (WDM) is a common practice for increasing data throughput of fiber communication systems. Multi-Terra-bit-per-second data rates can be achieved using this technique. My video is aimed to illustrate the idea using visible wavelengths and for educational purposes.
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