Sindhu Profile Topics Started Replies Created Engagements Search replies: Forum Replies Created Viewing 2 posts - 1 through 2 (of 2 total) Author Posts May 12, 2012 at 7:53 am in reply to: pull up resistor #7749 SindhuParticipant 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? May 12, 2012 at 7:53 am in reply to: pull up resistor #7769 SindhuParticipant 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? Author Posts Viewing 2 posts - 1 through 2 (of 2 total)