13/5/'99 At 16:55 12/05/99 +0300, you wrote: >>>> Hallo! There had accured the following problem: I have to create conrol desk for car's steering wheel device on PIC 16C73. - Which would be the most sutable engine for kturning the steering wheel? - Is PIC enough safe for this reason? - What have to be taken in consideration writing this programme? - Where can I get information on car's electronic control devices? (steering wheel, brake system etc) Thanking you in advance, I take this oportunity to send you my very best regards, Girts Aizstrauts, Studnt of the Technical University of Riga Arial Arial What are you attempting to do here? Are you trying to control hydraulics to turn the wheels? SAAB had a go at this some time back with interesting results. It seems that the intention to remove the driver from "The road feel" is not what people are after and they had to add false road feel to the wheel. As for the controller, any that is certified by the manufacturer for "life supprt" will nominally do, but that's not half the problem in that you have to add some form of mechanical control in case of failure, these will be some design rule requirement (Just like that stupid one that says the accelerator must be cable driven) This is all interesting stuff as no one wants to be responsable for driver death (Yes I know of the arguments for airplanes and fly by wire). I hope that you have good defensive programming tatics Dennis