I'm working on a small automotive display, using the following stuff:
I've picked the Olimexino because it's noise immune, has a more industrial touch and is easily powered by 12V/5V/etc.
So far I've managed to:
I'll try to update as often as I can with code if anyone is interested.
The information displayed is (left to right, row by row):
Wow, it looks great!
How do you measure the RPM - or is that faked for the moment?
For the moment everything is faked - but I do have the code working for the voltmeter, time (doh!) and exterior temp.
I intend to get the RPM from the alternator, which is a somewhat used method. It will involve some trial and error, but no biggie.
Ahh, neat idea. If you've got coil on plug ignition you might be able to take a feed off that. On mine it's just a simple 5v signal!
Alas, it's a four pot diesel. This isn't the ignition you're looking for... :)
you might find this useful: https://youtube.com/watch?v=t0ToYhjYV9I
Thank you. That is very interesting, but it's still for gas engines, whereas I run a diesel, hence there is no ignition coil to kick :)
You could probably take it off the common rail diesel injectors if you needed to. An opto-isolator would protect it nicely from any back-emf.
I'd be interested to see how it works with the alternator - would you be trying to measure the fluctuations in voltage coming out of it?
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