Re: Arduino, what do I need?
A good place to start is with something like this kit. As for interfacing with the car there's tons of people that have interfaced their Arduino's with an OBDII system (like this one or this one). And as for interfacing with a temp sensore there's TONS of resources online for reading a thermistor and displaying it on an LCD. You can pick up a 16x2 or bigger LCD screen and display everything on it.
Take a look at my Maximum Security mod. I have the Arduino chip reading coolant temp and flow rate and displaying both on a 16x2 LCD with an RGB backlight. It also handles the door opening and closing functions.
Re: Arduino, what do I need?
Second odbii link is dead....
Re: Arduino, what do I need?
OBDII wouldn't work, I'm megasquirt EFI standalone.
However, the first link looks tasty. I think I could make something cool out of these:
https://www.adafruit.com/products/335
https://www.adafruit.com/products/176
http://www.adafruit.com/products/193
Re: Arduino, what do I need?
Would something like this be more than enough to display multiple functions?
https://www.adafruit.com/products/618
Re: Arduino, what do I need?
you'd be best off with this: http://www.adafruit.com/products/358 as it comes on a PCB which will make things a whole lot easier lol. I've never interfaced with one of those but those LCD's you can set up any way you want them as far as display goes.
Oh, and for using the Arduino with Megasquirt check this out: :D http://www.ay60dxg.com/wordpress/loguino-data-logger/
Re: Arduino, what do I need?
So much info... brain exploding... lol I'm seriously trying to sit down and read it and take it in piece by piece but there's so much info. Hard not to be slightly intimidated by it all.
Re: Arduino, what do I need?
Ordered a starter kit and the screen I wanted :) Can't wait to get going on this stuff.
Re: Arduino, what do I need?
niiice! A lot of that stuff is way beyond my skill level as well so I know what you're saying :D
Re: Arduino, what do I need?
Waiting for my nice readout screen. But so far I'm getting the hang of this.