Make Electromagnetic /Magnetic field detector system with Arduino
Hello today we are going to learn about electromagnetic / Magnetic Field Detector with Arduino . There is no reason to explain about electromagnetic field or magnetic field . so just start with component you want
List of component
1.arduino board
2.Magnet
3.Piezo electric buzzer
4.Reed switch module
5.general purpose pcb or breadboard
Step 1: Connection
Simply we have to connect
Reedswitch
+5 - Arduino 5 v
Gnd - Arduino ground
Signal - Arduino Pin no 12.
Buzzer
+5 - Arduino 5 v
Gnd - Arduino Ground
Signal - Arduino Pin no 3.
Step 2: Program
int out =2; // The speaker is on pin 2
int led = 13;
const int buttonPin = 12; // connect reedswitch sensor
int buttonState = 0; void setup() {
pinMode(buttonPin, INPUT); pinMode(out, OUTPUT); pinMode(led,OUTPUT); }
void loop() { buttonState = digitalRead(buttonPin);
if (buttonState == HIGH) {
digitalWrite(led,HIGH); // turn LED on:
}
else
{
digitalWrite(led,LOW);
unsigned char i, j ;
for (i = 0; i <80; i++){ // number of cycles to sound
digitalWrite (out, HIGH); // turn buzzer ON
delay (1) ;// Delay 1ms set frequency 1
digitalWrite (out, LOW); // turn buzzer OFF
delay (1) ;// delay ms
}
for (i = 0; i <100; i++){ // number of cycles to sound
digitalWrite (out, HIGH); // turn buzzer ON
delay (2) ;// delay 2ms set frequency 2
digitalWrite (out, LOW); // turn buzzer OFF
delay (2) ;// delay 2ms
}
} }
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