ARDUINO Clapper, sound activated light or relay

This tutorial will show you how to make a clap or loud sound activated light or relay.

click on video below for full tutorial

 

Parts List:

ARDUINO Board

Sound Sensor Board

Supper Bright Led

Relay

Resistor

Jumper wires

Bread board

 

Schematic:

audio_alarm_schem

 

ARDUINO Code:

int val = 0;
int last = 0;
#define sound 3
#define light 9

void setup() {
pinMode(sound, INPUT);
pinMode(light, OUTPUT);

}

void loop() {
val = digitalRead(sound);

if (val == 1 && last == 0)
{
digitalWrite (light, HIGH);
last = 1;
delay(500);
}
else if (val == 1 && last == 1)
{
digitalWrite (light, LOW);
last = 0;
delay(500);
}

}