Microcontroller › 8051 › ITS URGENT….. › use SIP resistor of 10 ka to
May 6, 2013 at 7:06 pm
#9649
awanish kumar
Participant
use SIP resistor of 10 ka to give a pullup
it is a package of parallel resistors having single inline package 9 pins use this to provide VCC on all pins form 33 to 40….
OR you can use port 2, then you will not need any pullup resistor on your Keypad