by Dhanish

Relay_8_Channel_optocoupled/Relay_8_Channel_optocoupled.ino

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+/*
+
+Created by: Dhanish Vijayan
+Company: Elementz Engineers Guild Pvt Ltd ( http://www.elementzonline.com )
+
+This code demosntrate the interfacing and control of 8-Channel optocoupled relay board 
+
+Product Link: http://elementzonline.com/8-channel-relay-board-with-optocoupler-254
+
+Las Modified Date: 17/07/2016
+
+*/
+
+
+int RelayControlPin1 = 2;
+int RelayControlPin2 = 3;
+int RelayControlPin3 = 4;
+int RelayControlPin4 = 5;
+int RelayControlPin5 = 6;
+int RelayControlPin6 = 7;
+int RelayControlPin7 = 8;
+int RelayControlPin8 = 9;
+
+void setup() {
+  // put your setup code here, to run once:
+  pinMode(RelayControlPin1, OUTPUT);
+  pinMode(RelayControlPin2, OUTPUT);
+  pinMode(RelayControlPin3, OUTPUT);
+  pinMode(RelayControlPin4, OUTPUT);
+  pinMode(RelayControlPin5, OUTPUT);
+  pinMode(RelayControlPin6, OUTPUT);
+  pinMode(RelayControlPin7, OUTPUT);
+  pinMode(RelayControlPin8, OUTPUT);
+}
+
+void loop() {
+  /*
+  * Turn ON all relays 
+  * Note: The control logic should be LOW for the optocoupler relay to be turned on
+  */
+
+  digitalWrite(RelayControlPin1, LOW);
+  digitalWrite(RelayControlPin2, LOW);
+  digitalWrite(RelayControlPin3, LOW);
+  digitalWrite(RelayControlPin4, LOW);
+  digitalWrite(RelayControlPin5, LOW);
+  digitalWrite(RelayControlPin6, LOW);
+  digitalWrite(RelayControlPin7, LOW);
+  digitalWrite(RelayControlPin8, LOW);
+
+  delay(10000); /* 10 seconds delay  */
+
+  /*
+  * Turn OFF all relays 
+  * Note: The control logic should be HIGH for the optocoupler relay to be turned off
+  */
+
+  digitalWrite(RelayControlPin1, HIGH);
+  digitalWrite(RelayControlPin2, HIGH);
+  digitalWrite(RelayControlPin3, HIGH);
+  digitalWrite(RelayControlPin4, HIGH);
+  digitalWrite(RelayControlPin5, HIGH);
+  digitalWrite(RelayControlPin6, HIGH);
+  digitalWrite(RelayControlPin7, HIGH);
+  digitalWrite(RelayControlPin8, HIGH);
+
+  delay(10000); /* 10 seconds delay  */  
+
+}