Next Project: GT-R MFD on 370 (oil temp/pressure, boost, etc...)

MotorvateDIY

Well... this is nice.

Attached Images

GTR_gauge_with_data_s.jpeg (126.2 KB, 164 views)

Averying

Curious about the dimensions on the MFD. wonder if it could fit in the cubby space for those of us with non-nav cars


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2009 Sport Touring | Platinum Graphite | GTM Stage 1 Supercharger | BC BR Coilovers | Hotchkis Swaybar | Z1 FUCAs | AME TM-02 Wheels | Z1 2-piece Front Rotors | Z1 Clutch & Flywheel | Invidia Gemini Catback | GTM Resonated Test Pipes

MotorvateDIY

The factory Nav screen is only usable with the nav unit, as it uses a special 2 wire video interface called GVIF (gigibit video interface)

The visible screen is 7" (measured diagonal) with an outside dimensions of: 7" x 4.5"

At Gregory Brettin's request, I am looking into developing a stand alone 7" LCD screen for his custom "fibreglass cubby screen holder" (my words, not his!)

Driving a large 7" display with a microcontroller is a little challenging.
In order to get 30 frames per second for a smooth display, it requires a data rate of 5.76 million bytes per second (@ 4 bits/colour)

Yes, you could use a Raspberry Pi, but I *hate* the 20-30 second boot up EVERY TIME you start your car.

A microcontroller start up is less than 1 second when you have a 1 second splash screen. (Meaning it is almost an instant start up)

Development of the 7" gauge display will start in the new year.

redondoaveb

Hey Frank, will the 7" LCD screen you're developing for Greg's cubby screen holder be the wireless set up you're testing that will have the the main controller in the engine compartment?

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Fast Intentions "Stage Seb" twin turbo #098- Specialty Z/Tial-Xonarotor/CJM/Ecutek/HKS/KW/SPL/Hotchkis/Rohana/Toyo
750whp/700ft.lbs

MotorvateDIY

The only item under the hood will be the Bluetooth Sensor server. It will send the oil pressure (with support for 7 additional sensors) to the module/display inside the car.

As much as possible, the same hardware and code will be used to drive the 7" display. Since the display has its own "GPU", the load on the main microcontroller will be reduced, but the graphics will need to be recreated from scratch.

redondoaveb

Perfect, I'll need support for 6 sensors. I'm getting one of Greg Brettin's first cubby display holders

__________________
Fast Intentions "Stage Seb" twin turbo #098- Specialty Z/Tial-Xonarotor/CJM/Ecutek/HKS/KW/SPL/Hotchkis/Rohana/Toyo
750whp/700ft.lbs

MotorvateDIY

For planning purposes, what are the 6 sensors?