5V 1 channel relay module for Arduino

5V 1 channel relay module for Arduino

• Maximum load: AC 250V / 10A, DC 30V / 10A
• Trigger current: 5mA
• Voltage: 5V 
• Module size: 50 x 26 x 18.5 mm (L x W x H)
• DC +: positive power supply (VCC)
• DC-: negative power supply (GND)
• IN: can be high or low level control relay
• None: Normally open Relay Interface.
• COM: Relay common interface
• NC: normally closed relay interface.
• It is a low trigger when the jumper is connected to the LOW pin.
• It is a high level trigger when the jumper is connected to a high pin.

 code basic------------

int relayPin = 8;

void setup() {

    Serial.begin(9600);

  pinMode(relayPin, OUTPUT);

}

void loop() {

  digitalWrite(relayPin,LOW);

  delay(500);  

 digitalWrite(relayPin,HIGH);

   delay(500);   

}