i have a graphical lcd and i want to connect it with keypad i use this library "u8glib" for the graphical lcd and it is work correctly but when i interface it with a (4*4) keypad it not work correctly it delay too much !!!it's need to press 8 times to show the number in the g. lcd

i need some help in g lcd with a keypad 4x4

system May 23, 2013, 1:26pm 7

arduino mega

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