mirror of
https://github.com/xreef/PCF8574_library.git
synced 2024-08-30 18:12:18 +00:00
30 lines
646 B
Arduino
30 lines
646 B
Arduino
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#include "Arduino.h"
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#include "PCF8574.h"
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// Set i2c address
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PCF8574 pcf8574(0x39);
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unsigned long timeElapsed;
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void setup()
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{
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Serial.begin(115200);
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pcf8574.pinMode(P0, OUTPUT);
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pcf8574.pinMode(P1, INPUT);
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pcf8574.begin();
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timeElapsed = millis();
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}
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void loop()
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{
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// Read and store on buffer all input (pinMode) that are going HIGHT
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pcf8574.readBuffer();
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if (millis()>timeElapsed+2000){
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// read value on buffer than reset value for that pin
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uint8_t val = pcf8574.digitalRead(P1);
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if (val==HIGH) Serial.println("KEY PRESSED STORED ON BUFFER, NOW READED AND RESETTED.");
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timeElapsed = millis();
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}
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}
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