Products > Test Equipment
finding short on motherboards with a shorty (with display)
DavidAlfa:
This is very interesting. I looked at these DIY options last year, but hadn't time for that.
I have 4 digit decimal resolution DMMs at work (ex. 0.2145Ohms) which are great at tracing shorts, although very slow (1 reading/sec or even less when set in max precision)
However these are $$$$ expensive, I was searching something for myself, for hobby use.
I bough a $2 DT830G DMM to play with, aiming to modify it by adding an op-amp, so the 200 or 2Kohm scale become mOhms.
I'll update if I get enough accuracy out of it! It'll probably be crap but who knows :-/O
AndrewBCN:
Great project, and the Arduino code is very well written, really an example of how to write clear, easy to maintain code. Thank you for sharing!
kripton2035:
I have a pending update for the code, where I auto-measure the probes values at short and 1Ω value to auto calibrate the device...
will be there ... soon. stay tuned.
jaromir:
Hello guys, I'm the author of the original project on hackaday.io
It was quick one evening work before contest deadline, serving as backup project in case the main one would have a problem. More of a toy than proper tool.
I must admit I'm delighted to see somebody found it useful and stunned by how far you brought the development, turning my quick and dirty hack into useful gear. Great job!
cybermaus:
So. Is anyone already selling kits? Or ordered a bunch of PCB and have 2 to spare?
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