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Active member
Jul 3, 2015
OK, I found myself a 20 C and have been researching the various designs for LPMs. People here are really quite inventive and understand a lot of sophisticated technology.

It is too bad that there is not enough demand which is why I understand the projects ingenious though they are, do not continue which is unfortunate, especially those based on the 20C.

I am trying to figure out the simplest digital LPM with data logging capability, I suspect using Peregrine. I don't want to reinvent the wheel. However, it seems that all the designs are not being made...that is PCBs are not available such as for the ISIS data logging interface. I have never worked with Arduinos or written code. It would also be nice to have a USB connection rather than serial :yh:

So...PCB, parts list, and a nice red display!