hakcenter

That's cool, pretty much what I've already done. Code for my shield is already available here Nick is a member, and I spent some time revamping his code Anyways I can feel a bit of hostility for whatever reason so I'll just graciously bow out m'kay.

I designed my shield specifically for controlling the turbo. Putting the canbus on the arduino literally ties up 4 digital i/o's from the get go. Then most people are going to want to at least braking or cruise, etc. So instead of putting all my nuts in a basket I made it what it is, just to control the turbo. If people want more you can put this right on a mega, design another shield (anyone could) and have another side of a whole lot of other stuff. But be forewarned multiplexing is okay, but isn't as great as having dedicated ADCs. I figure if people want gauges, they would install them or already have them, especially as this is pretty much a standalone controller for the turbo. So anyone that doesn't want to code their own stuff, can literally take my shield, move a couple jumpers and voila, tune the turbo to their vehicle pretty simply.

I'm surprised me78569 hasn't mentioned but there is an entire Arduino shield I've setup for this turbo. Runs on shaft speed, which is cheap cause you don't need to buy $100 pressure sensors for boost / back pressure. Thou there is room in the header, to add additional sensors to do lots of stuff. SMD Through Hole Self powering, CANBus integrated, 3 ADCs, 1 spare digital I/O on a 16pin header. Unfortunately for me I can't afford the assembly fee to get 10 SMD's made, but I've already got an order in for 25 through hole boards, BOM's are relatively the same price but with through-hole someone has to put them together :D