Hi everyone,
I need some help understanding how to connect up a keypad I purchased.
The keypad I am using has 8 pins that are to be interfaced with a PIC. I always assumed that I would supply the keypad with 5VDC and then via its matrix it would supply me with a digital code output dependant on what key is pressed that would be read by the PIC.
If you look on page 2 of the attached PDF I have supplied for the keypad and look at the 12 key configuration. Now I understand how the matrix works but it doesn't tell me what pin I supply 5V to.
Can anyone explain to me how the keypad works if I have got it wrong and which pin I connect the supply to please.
Thank you for your time,
Rob
I need some help understanding how to connect up a keypad I purchased.
The keypad I am using has 8 pins that are to be interfaced with a PIC. I always assumed that I would supply the keypad with 5VDC and then via its matrix it would supply me with a digital code output dependant on what key is pressed that would be read by the PIC.
If you look on page 2 of the attached PDF I have supplied for the keypad and look at the 12 key configuration. Now I understand how the matrix works but it doesn't tell me what pin I supply 5V to.
Can anyone explain to me how the keypad works if I have got it wrong and which pin I connect the supply to please.
Thank you for your time,
Rob
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