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Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
@pacogh
Hi,
Thanks for your answer, your port expader is a really excellent job for reading a keypad.
I tested your software and it changes signal output of GPA0, GPA1, GPA2, GPA3 to '1'. !!
Reading your code, I solved my problem. Attached is a simple example of a '0' & '1' signal serie.
Thanks a lot!!!!!!!,
Paco.
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