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96
set the pin to Input status and then read the measured value 1
(pressed down) or 0 (not press). Check out the value printed
on the serial monitor.
Connection Diagram:
Test Code 3:
**************************************************************************************
const int right_X = A2; // define the right X pin to A2
const int right_Y = A5; // define the right Y pin to A5
const int right_key = 7; //define the right key pin to 7（that is the value Z）
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