The next batch of regulators have arrived and are ready to be sent out to anyone wishing one.
Same price, same shipping. Oh, and also I have a bunch of the 10K NTC temperature sensors. Nothing special, same thing you can get on Amazon or Ebay. I just picked up a batch of 100x. They are 3' (1m) long and have the JST plug already crimped on. Passing them on @ $1 each if interested.
Wow, what an amazing project! I found it while looking for an Arduino-based tachometer that would get input from the P-lead on an alternator. That's really all I'm looking for at this moment - not a finished product, just the circuit used to convert the output from the P-lead into a signal that can be counted by the Arduino. (I have a Balmar alternator with a very capable MC612 regulator.)
ReplyDeleteWithout spending a lot of time investigating your project in detail, can you tell me if that information (converting P-lead output to Arduino input) is available somewhere on your project? Thanks so much!
Thanks has been a fun project. P-lead (Stator), yes,I do sample it to get a read of the alternators RPM. The current design uses a sensitive zero crossing chip, that seems to work in the lab but I have not had very positive feedback from the field that it is any better than the old simple ckt I used.
DeleteU-5 (NCV1124) is the present chip I am using - see the regulators schematic. I would say the simpler signal conditioning ckt I used in the 3.0 design seemed to work just as well, and was lower cost. Software, look for the functions "void stator_IRQ()" and "void calculate_RPMs()" in the source file Alternator.cpp
Though this approach is working, I do feel there is room for improvement, perhaps in the hardware - but more so the software. Current solution is a little sensitive to noise and that reflects in what appears to be unstable RPMs. However, it is working for my needs at present. Just would like to make it a bit better some time.
Hope this helps, and if you make any great discovers and want to share - please drop me a note!