VERY SIMPLY RELAY AND ARDUINO PROJECT

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Introduction: VERY SIMPLY RELAY AND ARDUINO PROJECT

WHAT YOU NEED:

1) A REALY MODULE (IM USING KEYES)

2) 9 VOLT BATTERY

3) 9 VOLT BATTERY CONNECTOR

4) 2 JUMPER WIRES ,AND WIRES

5) A 9VOLT LAMP

Step 1: CONNECTING

CLICK THE WHITE BACKGROUND IMAGE..........

THE CODE:
int Relay = 7;
int stateRelay = LOW; ; void setup() {
  pinMode(Relay, OUTPUT);
}
 
void loop() {
 digitalWrite(Relay,LOW); // Turns ON Relays 1
Serial.println("Light ON");
delay(2000); // Wait 2 seconds
digitalWrite(Relay,HIGH); // Turns Relay Off
Serial.println("Light OFF");
delay(2000);
}

AND BOOM!!!!!!!!!!! THERE YOU ARE ;))

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    6 Comments

    i think you have forgot in the void setup "Serial.begin(9600);" so you k=can see the "light on" and "light off" on the serial monitor

    Smart idea! Thanks for shearig :)

    Very informative! so, going by this and something I saw elsewhere but, didnt really "get it" is one of these relays can be attached to a PIR sensor directly for signal and act as a motion switch to "turn on" whatever may be attached to the relay "out" without the need of a micro-controller ie: arduino etc. Do you know how to do this? I've tried but just have an "always on" thing goin' ...no switching going on.

    this is an instuctable for pir senosr with arduino :https://www.instructables.com/id/Arduino-Basics-PIR........but for sure you can make a circuit without a micro-controller ,but is going to a bit hard,i think you cant and you shouldnt connect to your project a relay like this because is made for micro-controles ,it's going to easier with a relay like this (((http://www.google.com/imgres?imgurl=http%3A%2F%2Fw...

    YOU CAN ALSO BUY A PIR SENSOR FOR HOME SECURITY AND ATTACH WHATEVER YOU WANT....IF YOU WANT MORE HELP ASK ME ;)

    Nice work. Thanks for sharing this!