[Arduino IDE demo source code for KC868-A16]--#08-PCF8574-DO

[KinCony Support]

Code 7: //The demo code is PCF8574-DO    You can copy the code to your Arduino IDE.

Code:

#include "Arduino.h"
#include "PCF8574.h"

// Set i2c address
PCF8574 pcf8574_1(0x24,4,5);
PCF8574 pcf8574_2(0x25,4,5);

void setup()
{
  Serial.begin(115200);
 
  pcf8574_1.pinMode(P0, OUTPUT);
  pcf8574_1.pinMode(P1, OUTPUT);
  pcf8574_1.pinMode(P2, OUTPUT);
  pcf8574_1.pinMode(P3, OUTPUT);
  pcf8574_1.pinMode(P4, OUTPUT);
  pcf8574_1.pinMode(P5, OUTPUT);
  pcf8574_1.pinMode(P6, OUTPUT);
  pcf8574_1.pinMode(P7, OUTPUT);

  pcf8574_2.pinMode(P0, OUTPUT);
  pcf8574_2.pinMode(P1, OUTPUT);
  pcf8574_2.pinMode(P2, OUTPUT);
  pcf8574_2.pinMode(P3, OUTPUT);
  pcf8574_2.pinMode(P4, OUTPUT);
  pcf8574_2.pinMode(P5, OUTPUT);
  pcf8574_2.pinMode(P6, OUTPUT);
  pcf8574_2.pinMode(P7, OUTPUT);


    Serial.print("Init pcf8574_1...");
    if (pcf8574_1.begin()){
        Serial.println("PCF8574_1_OK");
    }else{
        Serial.println("PCF8574_1_KO");
    }

  Serial.print("Init pcf8574_2...");
  if (pcf8574_2.begin()){
    Serial.println("PCF8574_2_OK");
  }else{
    Serial.println("PCF8574_2_KO");
  }


}

void loop()
{
  pcf8574_1.digitalWrite(P7, LOW);
  delay(1000);
  pcf8574_1.digitalWrite(P7, HIGH);
  delay(1000);

  pcf8574_2.digitalWrite(P7, LOW);
  delay(1000);
  pcf8574_2.digitalWrite(P7, HIGH);
  delay(1000);
}