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Limit to number of sensors to pin 28 ?
Posted: Fri Feb 15, 2019 7:04 pm
by nmerrill
Folks, is there a limit to the number of sensors that can get +5v from VEMS EC36 pin28?
Two triggers,
wheel speed?
Maybe others?
Re: Limit to number of sensors to pin 28 ?
Posted: Sat Feb 16, 2019 12:38 am
by ChrisAudi80
nmerrill wrote:Folks, is there a limit to the number of sensors that can get +5v from VEMS EC36 pin28?
Two triggers,
wheel speed?
Maybe others?
Yes, there is. It has a limited amperage. I forget what it is (10mA?), but you should be able to use it for TPS, Cam, and 2 or 3 pressure sensors.
Wheel speed does not use +5v unless it's a Hall sensor. You would need to find the Amp draw of each sensor you want to connect.
Why do you ask?
Re: Limit to number of sensors to pin 28 ?
Posted: Sat Feb 16, 2019 8:10 am
by nmerrill
I figured,
TPS is in pin 29, but I'm looking at Hall/Hall triggers and probably a hall wheel speed.
Any idea of the draw for the Hall on the rear main seal 60-2 sensors?
Looks like the hKZ101 dizzy Hall is in the 10 mA range
A large wheels speed sensor looks to be in the 40 mA.
Seems like this won't be a problem