BigAl1

Yep, I said wouldn't do it, but I find myself going through the steps of making a newer 3 **** hvac control work with the 928 system. I'm using a 2010-12 Nissan Sentra control because the **** styling works with my louvers, they feel nice, and they fit in the width between the console side rails. These are cheap and plentiful on ebay. I did look at using Arduino to be the interface between this and the 928, but that involves programming, and the size would be limited to the base unit plus shields required. I wanted something that could fit within the same profile as the 928 hvac head so it could work with my 2X DIN stereo mount design. Just checked, and these ***** are slightly larger dia than the face profile of the slider hvac. I wasn't thinking of just replacing the stock with this only, but it might be possible with an adapter bracket - this might be ideal for a printed plastic part. So, the plan is to use this control (or possibly others, as long as it fits the space, and the circuit traces can be figured out), and have it feed through a new circuit board with outputs to the 928, or possibly other cars that use solenoids to control the vac pots. This has PWM for the fan speed, so the PWM fan amplifier will need to be installed into the airflow after the blower fan. I hope to use all the functions on this control, including the rear defrost button. So far, the board design is about 90% done, and getting ready to order my first kit of parts and proto boards, and I have the Sentra board tapped for the circuits I need. It originally uses CanBus to control the airflow motors, with a control logic on this board. I'm using the Sentra logic, just tapping into various outputs on the hardware which will go to my new board. This is not ready for prime time yet, but I think the design is valid, and it has some flexibility for different mixing of airflows, plus a small user customizing area on the board. I just need to prove it works! Teaser pics included.....

FLYVMO

Excellent work Allan!

Looks very professional. That is some serious time and effort invested into this project.

Cheers!
Carl

Ducman82

are you going with aluminum on the new kits?

BigAl1

Nope, still a steel bracket. I wrapped it with 3M vinyl as a trial.

MjRocket

Al you are my hero!!

bureau13

This will be something you will offer? I keep eyeing the double-DIN units that support the Android car thing....just need some better audio options on them....this would be a perfect way to mount it...

BigAl1

Yes, it will be offered in the future. Still need to build a proto, bench test, car test, and field test the 3 **** system. The 2X DIN bracket is currently available for the original HVAC control, in 2 different style that fit both vinyl and leather covered consoles.

MjRocket

I highly recommend the DD bracket it fits and looks Great!

Speedtoys

MjRocket

My thoughts exactly! !

Alan

What is the slot under the HVAC controls for?

Alan

BigAl1

Just a rough opening for the warning strip. I didn't have mine to hand when I setup the laser cut, figuring this was a test fit version of the bracket. I'll make another with several detail fixes and make this cutout only what is needed to reveal the button and display.

jeff spahn

Al
I'll take one when you are done with the kit. Still haven't managed to get the Double Din kit you sold me installed. Too busy, then car went to paint . . . yada yada yada. If you get it done before I do the interior I'll send you my bracket for modification and I can put your control head in.

AirtekHVAC

Hell to the yea!

MjRocket

I need to buy stock in these, I have a feeling Al is going to sell a boat load.