Does the red LED on the turbidity sensor indicate signal is present when it is lit or signal IS NOT present when lit?
We use digital output and raise or lower the trigger by adjusting the potentiometer to make the LED turn on and off.
Does the red LED on the turbidity sensor indicate signal is present when it is lit or signal IS NOT present when lit?
We use digital output and raise or lower the trigger by adjusting the potentiometer to make the LED turn on and off.