Using Relay In Intel Galileo

Introduction:

 

In this article on IoT, I'll show you how to control Relay using the Galileo board. The Relay is basically an electrically controlled mechanical switch. Inside the Relay there is a plastic box that acts as an electromagnet when its energy causes a switch to trip.

 

Requirements:

• Galileo
• Bread Board
• Led
• Relay
• Some Wires
• Diode
• NPN Transistor
• Resistor  

Connections:

 

Relay:

• Relay to digtial Pin 5
• Relay Gnd to Gnd 

Led

• Anode pin to the 13
• Cathode pin to the Gnd

Programming: 

const int Relay=5;
int led=13;

void setup()
{
  pinMode(Relay,OUTPUT);
  pinMode(led,OUTPUT);
}
void loop()
{
  if(led == 13){
  digitalWrite(Relay,HIGH);
  digitalWrite(led,HIGH);
  delay(100);
  }
  else{
  digitalWrite(Relay,LOW);
  digitalWrite(led,LOW);
  delay(100);
  }
}

Explanation:

 

The Relay will act like an on and off  switch, for that we sketch the program here. Make relay as const value in digital pin 5 and led as 13th pin in setup function. Set the pinMode for led and Relay and in the loop function, we want to give the condition for relay and how it wans to work; it takes the condition from the led pin. 

if(led == 13){
  digitalWrite(Relay,HIGH);  // Relay ON
  digitalWrite(led,HIGH);    // LED ON
  delay(100);
  }

The above condition is true, which means the Relay is ON and Led also ON, or else the condition is false which means both will be in the off condition. 

 

Output: 

 

 

Read more articles on Internet of Things:

• Environment Monitor With AWS IoT
• Internet of Things (Basics of IoT)