# Thread: Tutorial - Air Ride Suspension

1. Originally Posted by 2k1Toaster
The code is for the 150psi unit. If you use something else than you will need to calibrate it, or find a pre-done curve. If you find a predone curve, then you can plug it into Excel and get an equation easily.
what equation in excel do I use?

2. Originally Posted by customaudioman
I see most people with gauges in their cars(Chrysler 300) run like 90-98 psi int the front 100-106 psi in the rear with the 400psi sensors. I only can use this sensor, so are the numbers above all psi or resistance?
The first number is the resistance you should see at the second number PSI.

In my excel spreadsheet, I took it to the third polynomial cause I started with three good points and got this equation:

y = 0.0035x^2 + 1.4409x - 14.099

The first set was added later after bugging the DD engineers for two weeks.

3. Originally Posted by GizmoQ
The first number is the resistance you should see at the second number PSI.

In my excel spreadsheet, I took it to the third polynomial cause I started with three good points and got this equation:

y = 0.0035x^2 + 1.4409x - 14.099

The first set was added later after bugging the DD engineers for two weeks.
Is this for the 0-400psi sensors? also do you have a config file for the 0-400psi sensor or does any one have the 0-400psi sensor working in their car?

4. Originally Posted by customaudioman
Is this for the 0-400psi sensors? also do you have a config file for the 0-400psi sensor or does any one have the 0-400psi sensor working in their car?
Yes this is what I came up with for the 400PSI sensor and I am no expert so someone else needs to verify it with the four coordinates provided above.

As far as I know, I'm the only one.

5. Originally Posted by GizmoQ
Yes this is what I came up with for the 400PSI sensor and I am no expert so someone else needs to verify it with the four coordinates provided above.

As far as I know, I'm the only one.
so your work in the car? Your able to see the pressure your sitting at? I dont have the sensor yet, will be getting soon. just want to make sure it works.

6. Gizmo, does your sensor work in the car hooked up?

7. Well RIXS10 did send me a PM ontopic, so not sure, but I'll respond here just incase:

Originally Posted by rixs10
i just purchased one fusion brain, can a fusion brain be connected to an antenna to read rfid? this kit works good (4")but needs a larger antenna. keep up the good work!!

RFID is a low power transmission system. 100mm is really the range you should be getting. You can get larger range with much much larger systems. Think about the theft deterrence systems in walmart by the doors and things like that.

The system you linked to outputs 12v. So you can use that as an input to the Fusion Brain if you send it through a voltage divider or you use the 4 channel isolator we sell (although you only need to use 1 channel for this).

-- Nick

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