HVAC Control on Car PC through Serial Port. - Page 32

h3rk · 11-15-2006, 07:12 AM

so this couldn't be done? or something more correct, but along the same lines?:

Dim TC 'Temperature that comes from card'
Dim TF 'Temperature in F'

TF is (TC*9/5)+32

Check Box in Settings
Yes= display TF for all temps
No= display TC for all temps
or maybe Dim TU 'or something similar' use it for all displayed temps and:
Yes then TU = TF
No then TU = TC
temperatures sent from the software to the card would have to be in C I assume (ie for the compressor settings)
so those temps would have to be converted back and rounded before sent to the card.
???????????? Pretty please, tell me this is possible. (no lies)
As for the question that you didnt understand:

I have, as I have stated before, one servo in my system. It is a servo amplifier that utilizes any voltage from 0-12V and provides a corresponding position (Analog). There are in theory infinite positions between the 0V and the 12V set positions. I would prefer to control this servo with an analog 0-12 volt signal. I know there is hardware made by a company in canada I think, their products are called Phidgets. The phidgets are I/O devices that can be controlled by software (VB6 and similar are listed on the site) via usb. One of the products they produce, provides analog output.
I want to know if its possible to modify the software you provide to send the control temperature to a seperate device like this phidget. I want to know if I can set up a new control associated with this output that provides more temp settings (lets say 10)to control the temp door more precisely, and I want to know if a slider control can be set up in addition to up/down arrows to control this temperature.
So in short, is it possible for this VB6 program to be modified to read/write to/from other usb hardware?

Thanks for your quick and thorough reply to my previous questions

Mastero · 11-15-2006, 08:29 AM

h3rk ...

Lets get one thing clear the software is there just to send command to the Unit. It can not modify a Microchip's preprogramed software. ITS IMPOSSIBLE!

If you want a three digit display, changes has to be done from inside the Microchip software and even the hardware changes.

If you want F then i suggest using LM34 with the current setup it will display the temp in F but 99 is the max deg it can display.

As for the phidgets thing it is not possible with the current setup.

You can modify the current setup to control a servo from 500 to 2340 steps 180 deg movment. for tis u will have to modify the software.

Cheers
Mastero

h3rk · 11-15-2006, 06:36 PM

Quote: Originally Posted by Mastero

You can modify the current setup to control a servo from 500 to 2340 steps 180 deg movment. for tis u will have to modify the software.

From what I can see '500 to 2340' are possible servo positions, what I need are greater than 5 preset positions within that scale.
What is the maximum number of positions that I can send to the servo driver (with software modification). I see in the manual that there are 5 positions under 'Set Temp Locations' in the Climate Control Settings. Is it possible to have more or is that a limitation?
Is the software open source? I think I remember reading previously that it was/would be.

Quote: Originally Posted by Mastero

Lets get one thing clear the software is there just to send command to the Unit. It can not modify a Microchip's preprogramed software. ITS IMPOSSIBLE!

Seems to me that the software also provides some user interface functionality. It communicates temperatures to the user, in addition to controls.
All I was wondering was if those displayed temps on the UI can be manipulated only for display purposes on the screen my theoretical software mod would leave the temps communicated to the hardware in C.

h3rk · 11-15-2006, 07:03 PM

Oh hell, I'll just buy it and see. Maestro, your website will be hearing from my credit card shortly.

Mastero · 11-17-2006, 07:46 AM

Well any other questions ?

Ita avalible in assembled form also!

Mastero

bns2000 · 11-19-2006, 12:22 AM

how much assembled to USA zip 72801

Mastero · 11-21-2006, 06:56 AM

Quote: Originally Posted by bns2000

how much assembled to USA zip 72801

Assembled is Euro 150 free shipping
Kit is Euro 110 Free shipping

Shipping via D.H.L with tracking.

Cheers
Mastero

EddyP · 11-22-2006, 02:32 AM

Have you got many of them? you're not expecting to be out of stock anytime soon are you?

Mastero · 11-23-2006, 01:21 PM

I cant say that .... as of now its in stock ... 19 left

Mastero

RedGTiVR6 · 01-17-2007, 02:32 PM

Without having to read through this entire thread...do you know if this unit will work with a VW that uses the Climatronic unit? It's all run electrically. Not via vacuum hoses or the like.

With this unit, do we also have to write our own interface or is that provided as well?

Mastero · 01-20-2007, 03:20 PM

Red go to my site and download the manual it has all the info you require.. if you require more the email me

Cheers
Mastero

bimmeracer · 01-28-2007, 01:05 PM

This is a really long thread. I was wondering will this work on a bmw with an analog hvac?
here is mine

h3rk · 03-03-2007, 11:48 PM

Mastero, I sent you an IM, but I thought my question might serve to help others as well, so here goes:
Two of the ULN2803AG chips have a seven resistors connected to a side. looking at the top of the card, they are on the top-right and on the left. The card is labeled on the left with a list of descending resistor values. The pictures on the DIY page on your site don't make it very easy to compare color bands. I assume on the left, the descending order of resistance values correspond to where the resistors go. On the top right, its not as easy to tell. As far as I can read from the picture, the resistors go in the same order as the ones on the left, but the labels don't agree, and the list is broken up in two rows. Could you shed some light on the subject for me?

Well, hopefully my best guess was right. I do have another question. Your DIY page says that that bottom jumper should be around 5.5V. I get 5.2V after adjusting the pot for 2.55V on pin 5. Is 5.2V close enough (vs. 5.5V) or is something likely wrong?

lostreception · 03-04-2007, 01:21 PM

Maestro i was wondering if any type of specific RC-5 remote is required
and
will the remote part work if the computer is off
also you mention buttons 1-8 are used what are thie values
like
1= temp up
2= temp down etc
3= fan mode

how does this all work

thanks

Mastero · 03-05-2007, 02:05 PM

Quote: Originally Posted by h3rk

Mastero, I sent you an IM, but I thought my question might serve to help others as well, so here goes:
Two of the ULN2803AG chips have a seven resistors connected to a side. looking at the top of the card, they are on the top-right and on the left. The card is labeled on the left with a list of descending resistor values. The pictures on the DIY page on your site don't make it very easy to compare color bands. I assume on the left, the descending order of resistance values correspond to where the resistors go. On the top right, its not as easy to tell. As far as I can read from the picture, the resistors go in the same order as the ones on the left, but the labels don't agree, and the list is broken up in two rows. Could you shed some light on the subject for me?

Well, hopefully my best guess was right. I do have another question. Your DIY page says that that bottom jumper should be around 5.5V. I get 5.2V after adjusting the pot for 2.55V on pin 5. Is 5.2V close enough (vs. 5.5V) or is something likely wrong?

Chris the DIY says around 5.5V ....

and as for the resistor the left set is for the PC control and the right is for the R/c control

So both can be similar its fine..

cheers
Mastero

Quote: Originally Posted by lostreception

Maestro i was wondering if any type of specific RC-5 remote is required
and
will the remote part work if the computer is off
also you mention buttons 1-8 are used what are thie values
like
1= temp up
2= temp down etc
3= fan mode

how does this all work

thanks

Any RC5 protocol remote will work ..

Did you read the manual ... which i took so much of trouble to write

Its all there. Yes it will work with comp off .. that is the reason the remote is there for.

1 = Fan Mode
2 = Aux on / off
3 = Ext temp
4 = Temp up
5 = Temp dn
6 = Check cutoff temp
7 = Comp on/off
8 = On / off

Cheers

mastero