Quote:
Originally Posted by neutrino15
I actually would like to know if you could combing the output PWMs from 2 IR recievers (for front and back) in such a way that it does not violate first restrictions.. I mean, if a digital signal is just +5v to 0, why couldn't you just combine the digital pins? This way you don't have to burn 8 inputs..
--
|
It is normally not a good electrical practice to directly wire 2 outputs together ... as one of them can drive a signal into the other. It can be especially damaging if the INPUT that they are connected to has a high impedance.
I haven't looked at these circuits specificially, but typically outputs don't like to get external excitation. It all depends on the type of output circuits ... and whether or not you add external circuitry to isolate/protect the drivers.
Will it work? Maybe. Will if fry the board? Maybe, maybe not. I'd have to look at the driver circuits to see if they have protective circuitry.