[Sindhu]

 hi guys,

 

extension of this doubt…

 

why is the value of pull-up resistor used = 10k? for a supply of 5V, this yields a current of 0.5mA..

 

How does the microcontroller know whether there is a high signal or low signal on this pin?

[Sindhu]

 hi guys,

 

extension of this doubt…

 

why is the value of pull-up resistor used = 10k? for a supply of 5V, this yields a current of 0.5mA..

 

How does the microcontroller know whether there is a high signal or low signal on this pin?

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