Oct 18, 2010 #1 N NARENDRA1234 Advanced Member level 4 Joined Mar 9, 2010 Messages 114 Helped 2 Reputation 4 Reaction score 1 Trophy points 1,298 Location pune Activity points 2,009 how to connect pull ups to keypad?should the rows be grounded and columns should be VCC?
Oct 18, 2010 #2 ashokok Member level 4 Joined Jan 1, 2008 Messages 73 Helped 22 Reputation 44 Reaction score 16 Trophy points 1,288 Location INDIA Activity points 1,603 NARENDRA1234 said: how to connect pull ups to keypad?should the rows be grounded and columns should be VCC? Click to expand... normally inputs are pulled up, why you want to ground row and column to vcc?? can you publish your schematic Regards P.Ashok Kumar
NARENDRA1234 said: how to connect pull ups to keypad?should the rows be grounded and columns should be VCC? Click to expand... normally inputs are pulled up, why you want to ground row and column to vcc?? can you publish your schematic Regards P.Ashok Kumar