32 lines
499 B
C++
32 lines
499 B
C++
#include <PCKeyboard.h>
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#define CARD_DET 1
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PCKeyboard keyboard;
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int prevValue = LOW;
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void setup()
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{
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Serial.begin(9600);
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Wire.setSDA(4);
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Wire.setSCL(5);
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Wire.begin();
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Wire.setClock(10000);
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keyboard.begin();
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keyboard.pinMode(CARD_DET, INPUT);
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keyboard.digitalWrite(CARD_DET, HIGH); // Enable pull-up
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}
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void loop()
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{
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const int value = keyboard.digitalRead(CARD_DET);
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if (value == prevValue)
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return;
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Serial.printf("Card Detect: %d \r\n", value);
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prevValue = value;
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}
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