when i use wemos D1 mini with 4x4 keypad. when I press the A button The output in serial monitor is 1, and if i press B the output is 4. for other buttons ok, no problem. please help me anyone. The code is: #include <Keypad.h> const byte ROWS = 4; //four rows const byte COLS = 4; //four columns …

Wemos D1 mini/ ESP8266 have problem in serial monitor output

myoui_hirota November 4, 2021, 11:45pm 3

I am new here, thanks for your information.

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