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I would recommend doing an opamp or optocoupler and setting that circuit up to drive the inputs at the proper level. You don't want to add any burden to the signal path between the sensor and the gauge. It will introduce an error. An opamp or optocoupler are high enough impedance to not shift...

Some yes and some no. You can tap the temp and pressure. You may be able to tap the voltage (I've not measured that yet). You can't tap the frequency at the gauge.

Ah, Yea. GIPO libraries are out there. The IO card has its own processor so its a little different than manipulating GPIO pins. I do like the idea of running a compiled program versus a script. It will be a lot more efficient. It does sound like using C is possible later. Also, I didn't want...

I checked with the maker of the IO board and he did confirm that libraries aren't available in C yet. The only option at the moment is Python.

With the Pi and the IO board it looks like most everything I've seen is written in Python2. I've not done any serious C coding and I don't know if the needed libraries for the hardware are available in C. There may be some Perl script on the database and web side of things. The hardware...

Using a raspberry pi 2. I have a piplates io board. Working on the signal conditioning and isolation stuff now.

I'm moving forward with the data collection project. I have some hardware together and I'm prototyping it on the bench. The goal is to have a modular platform to do monitoring and/or auto start. In the case of the MEP831a to also do engine speed management. Got lots of testing to do.

That was pretty much what I was thinking.

Awesome idea. Unfortunately since mine is trailer mounted and used in multiple locations I have to go with a wireless solution.

When the generator is online I want to have a web based dashboard to show all the operating parameters. Its a pretty simple setup. I figured once the webserver was figured out anyone else wanting to build one could use whatever data connection that suited them (wifi or cell).

I'm not doing this to sell. Only for myself and to share a how-to if anyone else wants to try it. Since my background is more in line with PLCs I figured that would be the shortest learning curve for me.

That is what I mean right there. Something that is harder to damage.

I'll most likely use that or a Raspberry Pi as the controller and web server. I want to use hardened IO and preferably something modular so it can be customized for different gensets. The challenge will be to keep the cost modest.

I want to build something with robust IO. To keep it simple and reliable I'm looking at micro/nano PLCs. Going with a PLC it could start out as a monitoring system and grow into an autostart. One goal will be to keep it generic so it could be used with water cooled or air cooled machines...

That looks like a nice one Jim. Great price on it. Thanks! I'm pretty handy with programming automation systems. I'm just glad they don't use FORTRAN. I had to learn that way back in the college days. Working on ABB DCS systems I got to do a lot of TCL programming. TCL isn't exactly a modern...

I'm looking at a building project. Something that is more budget friendly. I'm especially interested in adding parameter trending and the ability to monitor things on my MEP003a such as heat temp.

Has anyone built a telemetry system for their generators? Something that would MONITOR the parameters and be visible via a wifi link or cell data link?