i want to measure RPM from two different sources simultaneously using NI ELVIS and i am using an hall effect sensor, how to do it?
info:
my hall effect sensor has 3 pins Vcc, GND, out
i connected the Vcc, GND to ELVIS board itself and the OUT pin to CTR0- SOURCE pin (is this connection correct? i left CTR0-GATE and CTR0-OUT free)
from one of the website i found that i need to use frequency counter
so i went to NI-DAQmx->create task->acquire signal->counter input->frequency (i did a test run, nothing was working)
then i did edge count NI-DAQmx->create task->acquire signal->counter input->edge count, here i could see the up counting every time i passed a ferrous material in front the sensor.
