Reply To: 18F4550 with 74LS138

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#11507

ericJ
Participant

I used the program in the tutorials on the 4×4 keypad as an example I modified it to scan the rows using the 74LS138 but I can not get it to work properly. I attached the I used. Please let me know what I am doing wrong.

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string(7) "9898001"