I've made a fair amount of progress since the last update. I was able to read from the rear sending unit on the Arduino. Unfortunately the newer Arduino I need still hasn't arrived. Once I get that I should be able to get the android and Arduino communicating fairly easy. Below is a short video of the data I'm getting back as I read it. It was fairly easy to read it with a multimeter and the Arduino. It was interesting that the resistance doesn't flow linearly across the arm but that's easy to deal with in the software.
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For the first wave of this project I am trying to get both fuel tanks and the coolant sensor. All three just measure resistance and are fairly easy to install. The Tach sensor uses ac volt pulses to measure the magnet clicks as it goes around. I have the hardware ordered I think that will let me read it. Not sure if it will be sensitive enough though. I am also adding voltage to both batteries and the alternator as well as amperage. The Speedometer is cable driven making it nearly impossible. I am trying to figure out how to add a speedometer using the sensors in the phone. Other apps do it so it isnt impossible.
The app is coming along well but hasn't been a high priority. I have a spreadsheet with any info I've collected. This is what I have for it soo far. I have question marks by a couple things I was told but haven't confirmed myself. Any information I should add or that might be wrong Id love to know.
I have uploaded all the code ive made for this on
Github. As I make more updates it will uploaded there.
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