tahir4awan
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When we use pull up resistor with port assigned as input then what will be its logic state? active high or active low.
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When we use pull up resistor with port assigned as input then what will be its logic state? active high or active low.
then logic state of the input pin is active high.
In your case, if your microcontroller takes an action when your pulled-up input is low, then the input is active low. Otherwise, it is active high.
When we use pull up resistor with port assigned as input then what will be its logic state? active high or active low.
Guys I tell you what is Active High and Active Low
Suppose that we have a device which has input and output.
When input of the device goes high then output of the device also goes high. This device is known as Active High Device i.e A device which becomes Active on High input.
When input of the device goes low then output of the device goes high. This device is known as Active Low Device i.e A device which becomes Active on Low input.