mesamune80
New Member
Hi all,
i am using a comparator ic and LM393 ,configured it as windows detector circuit with the output go to LED and pic uC pin.
But i could not read any high logic from the ic output pin when the pin is goes high. i am using a 1k pull up resistor for the power (12v) to LED which is parallel to uC pin as well which i want the uC to detect it is logic high.
Any problem with my configuration?
i am using a comparator ic and LM393 ,configured it as windows detector circuit with the output go to LED and pic uC pin.
But i could not read any high logic from the ic output pin when the pin is goes high. i am using a 1k pull up resistor for the power (12v) to LED which is parallel to uC pin as well which i want the uC to detect it is logic high.
Any problem with my configuration?