Watson221:
I
The Keypad pins-Row pins = 3, 5, 6, 7
Column pins = 8, 9, 10
I presume the keyboard pins are INPUT
Assuming you are using an Atmega 328 then pin 10 MUST be OUTPUT for the Arduino to act as SPI master.
...R
Watson221:
I
The Keypad pins-Row pins = 3, 5, 6, 7
Column pins = 8, 9, 10
I presume the keyboard pins are INPUT
Assuming you are using an Atmega 328 then pin 10 MUST be OUTPUT for the Arduino to act as SPI master.
...R