So I’m back at it again.  I went through code and modified it to control boost using a solenoid valve.  I’ve rewritten most of the code that I posted here for this new project.  It’s a rework but worth the efforts.  Here’s the specs of the new setup.

Features:

2″ gauge (52mm) CAD design
Boost Solenoid Control based on Wastegate Duty Cycle
Boost Warning LED
Boost Spool
Boost Gain Control
Boost Display in PSI
1.3″ OLED Screen
Air Fuel Ratio 0-5v analog input
Air Fuel Ratio Display
Capacitive Touch 3 Button Menu System
4 Bar Map Sensor (up to 43psi)

This whole new process involve CADing the housing for the gauge and designing the PCB for the components.  A lot of testing had to be done to get it working the way I wanted it to but it’s well worth it.

Here’s the CAD design of the gauge parts assembled. Modeled in Solidworks.
Front:

Back:

I printed these on my 3d printer (100 micron layer SLA) but it still needs to be tweaked a little for a better quality look and feel.

Front:

Back:

Now onto the PCB.  I had to learn how to use Eagle because it was a free software and my PCB maker uses Eagle files.  After hours of designing and laying out the PCB, I came to the current version below.  It sports my other website TunerWizard.com

This is version one. I’m thinking about making version 2 in a square aluminum box for those who do not want it in a 52mm gauge package.

Here’s the PCB board that I just received. This is the back side.

Let me know if anyone is interested.  Once the parts are soldered in and the micro-controller has been programmed, I’ll do a post and possible a video on the unit in action.  Stay tuned.