DjBac

I would like to ask which is (in you opinion) the best touchpad to use in my carputer... I've only found some ugly white and big ones!!!
Some opinions??

Another question... I've read some threads about using the St.Wheel Controls with the carputer..
How can I achieve this?
These remotes in Corolla are wired.. There is a 3-wire output...
Can this be done??

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no1knows

3 wire output, that means theres not just a simple on-off switching, thats gonna be tricky unless you can find adapters.

I'm using a standard USB numeric touchpad moulded into the door card: http://www.no1knows.com/galleries/in...os&photo_id=22

Works well, next/prev song, volume, vis on/off e.t.c.
hth

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Curiosity

The 3 wire is usually a dual analog control. You can hook it up to the joystick port.
http://www.mp3car.com/vbulletin/input-devices/25690-steering-wheel-controls.html

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DjBac

With touchpad I meant mouse replacement (like laptops!!!)..

Inside the controller (steering wheel) every switch has it's own wire!!!!
So I can do something with it!!!

But how can I make it co-operate with the PC!!!!!!!

Curiosity

It would be much easier to just use the 3 wires that are already there rather than running wires through the steering wheel column. god_of_cpu has an app that takes the joystick input and maps keyboard shortcuts (in the link above), and I have a winamp plugin for this setup as well and a girder plugin (that doesn't work right).

Oh, and there are USB touchpads that work just like a mouse. cheap better . There are more but that was a quick search.
EDIT: Oops, those are both serial!

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DjBac

I've everything about god_of_cpu's project!!!

They are serial but a serial->ps/2 adaptor is included!!!
The cheap one you said is ugly as the ones I've found... The second one doesn't have any pic!!!

THANX!!!

EDIT: I found a pic for the second, but this is ugly too, but much better!!!!
There is another one with USB!!!!!!

Goose

Did you find out how to increase and decrease volume of the PC with a steering wheel control???

I got 2000 Celica now but going to chege it for a 2006 corolla 1.4 TDI and I alredy planning to place carputer in it. this time based on pentium M and aopen mini cube

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gsmaster

The 3 wires are propably +12 and two bus signals (Can, 485, i2c...etc) ground is taken at the chassis.

I order to interface it to the computer, it depends to the key's pcb. If there is a complex pcb with ic's on it and complex circuitry, then its propaply some kind of bus and its very difficult to interface it without converter.

I dont think its output is analog, but it is posible.

The easy way is to run seperate cable for each button to the serial and with some software do the rest (like winamp control)

My approach would be: (as an electronics maniac)
Make a simple pcb with a small microcontroller and send via rs232 commands to a VB programm to do the rest. (no extra cables.)

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electro

Hi

Does anyone knows which wires are for the sterring wheel control on corolla and what is their plug? If you can put a photo , it would be great!

electro

Hi! I look at my steering whell control and ia see that is has 4 wires:




But my new car-pc , has only 3 wires ( +3.3 , GND and AD wires). What Could I do for connect my steering wheel control?

nrgizerbunny

there are a series of resistors in the steering wheel control. so a different voltage gives a different output. only way i think you can find out is with a circuit diagram or with a multimeter.

electro

OK, lets say , that I foind oout the outpouts. Then how can I connect with the 3 wires of my system?

The 3 wires are :

+3,3 V
GND
AD

nrgizerbunny

what is AD?

electro

I think that is the wire , whitch it has the sognal , for the operations.

nrgizerbunny

tricky one,

i've got an 05 corolla which has a similar set up. I had to connect ground to one wire and the +3.3v to the other 1 wire (its only a 3 wire system) and the sense to the final wire. Each time you press a switch you are going to get a different resistance coming down across the two ends. Just check to see if you have a ground there anywhere to start off with. If you haven't it doesn't matter which way you connect it up.

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