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8 years, 1 month ago.
Interfacing Keypad with mbed Board
Hi everyone,
I'm new to this whole mbed system. I am trying to interface an HC-543 4x3 numeric keypad with the mbed board. I am using PuTTY as my serial port interface. I am attempting to use the code found here:
https://developer.mbed.org/cookbook/Keypad
I have compiled the code in the online compiler and imported the necessary libraries. However, when I press any of the keypad buttons, nothing shows up in the PuTTY serial window. What am I doing wrong? How can I test if this program is working properly? Is this a consequence of the fact that I am trying to use a 4x3 keypad with a 4x4 keypad code? Please let me know, thanks in advance!