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DFR0144 Datasheet(PDF) 8 Page - DFROBOT

Part # DFR0144
Description  Relay Shield for Arduino V2.1 (SKU:DFR0144)
PDF  8 Pages
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Manufacturer  DFROBOT [DFROBOT]
Direct Link  https://www.dfrobot.com/
Logo DFROBOT - DFROBOT

DFR0144 Datasheet(HTML) 8 Page - DFROBOT

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case '2':
Serial.println("Relay2");
val=digitalRead(relayPin[1]);
val=!val;
digitalWrite(relayPin[1],val);
break;
case '3':
Serial.println("Relay3");
val=digitalRead(relayPin[2]);
val=!val;
digitalWrite(relayPin[2],val);
break;
case '4':
Serial.println("Relay4");
val=digitalRead(relayPin[3]);
val=!val;
digitalWrite(relayPin[3],val);
break;
default:
if(input != '\r' && input != '\n')
Serial.println("invalid entry");
break;
}
}
//
else unablerelay();
}
}
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