1 Attachment(s)
Creating a log marker using the MVPI Pro A/D input
My MVPI is semi-permanently installed and I cannot get to it while driving for sure. Does the schematic below seem to be OK for a log marker? I am basically just inputting a 5v signal from a 12v/5v converter. I am going to put in a 5v circuit anyways for adding additional sensors.
Attachment 87210
I've heard that the A/D inputs have a floating voltage when disconnected, which is why I am switching it to ground when the switch is off. I am not sure if the resistor is needed but seems to be added insurance in case something goes awry.
I initially thought of using a momentary switch just to mark a spot, but thought a regular switch provides more flexibility in case I find the need to identify a section of the log. It would be more easily incorporated into a chart, or using a filter.