Ok, I have decided to publish my old hardware to read perfectly 4 probes DS18S20 compatible with the kit used in RoadRunner from many.
The hardware derives from the published material free on line in the link proposed by Guino many months ago.
I have drawn my PCB, and small corrected the orignal .asm file,and creating .hex for program the P12C509.
To disposition all to build home made the hardware in the zip file.
Here under screenshoot of the PCB and old photo of my old hardware.
EDIT:Please, every comment in this thread.
EDIT2:Please , I dont' have time for make home made for other the PCB's...
I don't sell my hardware ,it' s on line fre for all , but build alone each of you this devices!
Good job to everybody
Is this the circuit that can maintain gps lock and monitor the car battery voltage too? It looks like a temperature probe unit, but I can't tell what some of the other components are.
It may be usefull for the users to know how they can program the PIC.. I mean, I know you can build a little circuit to do it using the serial port, or buy a kit to do it.. but I honestly ordered the kit from a store exactly because they send you the PIC already programmed -- I just didn't want to bother with that stuff..
I have published the hardware only because someone who understands of electronics is able simply to build it home made spending very less than to already purchase the kit ready.....
If however I have created some problem with this thing, I can close the thread or delete the zip file ... make to know me if have been wrong!
it's not a problem at all man.. I was nearly poiting out that most people may need a little more information...
If I had say 10 of these boards printed, would anyone be interested?