I purchased this Arduino LCD-Keypad shield from Amazon and it had terrible documentation. I made this video for anyone else looking for the pin-out of this v1.0 board.
Here is a copy of the PDF I made.
I got busy a while ago and built a version of an ESR meter designed by Manfred Mornhinweg. Here is a link to the ESR page.
This is actually the second version of his design I have built and this time I built the meter inside a cheap analog volt/ohm meter. This was the cheapest option as the cost of a generic panel mount analog meter alone surpassed the cost of the cheap Gardner Bender GMT-318 volt/ohm meter I built it in.
Here is a PDF of the original design.
Here is a PDF of my mods.
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