Relay Module 8ch I2C SDA SCL 8 channnel 5V i2C PCF8574T Arduino

Relay Module 5V dengan Kendali i2C hanya butuh 2 pin data SDA dan SCL untuk mengkontrol 8 Relay.

Bisa disambung sampai 128-256 channel relay dengan mengubah i2C address tiap module i2C nya.

Controller : PCF8574T waveshare
Tegangan kerja : 5V DC (min 1A)
Interface : I2C (SDA SCL)
Arduino Library : PCF8574.h

Contoh coding :

#include
#include "PCF8574.h"
PCF8574 RjRelay;
#define ON 0 //LOW Active Relay
#define OFF 1
#define RelayCh 8 //Jumlah channel Relay

void setup() {
Serial.begin(115200);
RjRelay.begin(0x20);
for(int i=0; iRjRelay.pinMode(i, OUTPUT);
}
}
void loop() {
for(int i=0; iRjRelay.digitalWrite(i, ON);
delay(300);}

for(int i=0; iRjRelay.digitalWrite(i, OFF);
delay(300);}

for(int i=0; iRjRelay.blink(i, 3, 500);
delay(300);}

for(int a=0; afor(int i=0; iif(i>0){RjRelay.digitalWrite(i, ON);
RjRelay.digitalWrite(i-1, OFF);}
else{RjRelay.digitalWrite(i, ON);}
delay(100);}
}}