ProjectConclusion: ArduinoPhotosensitiveAlarm

This Arduino Photosensitive Alarm plays music when it feels light( of course you can change the light sensor value to control trigger light degree), and it can play 2 different songs by put it vertical or horizontal, also can change speed and volume by using the rotated button, and finally you will got a short snooze by pressing the press switch.

All the materials I used:

  • 1 Arduino board
  • 1 photo resistor
  • 1 tilt switch
  • 1 press switch
  • 2 potentiometers
  • 2 10kΩ resistors and 1 220Ω resistor

The final video shows here:

And the final code here:

#define NOTE_B0 31
#define NOTE_C1 33
#define NOTE_CS1 35
#define NOTE_D1 37
#define NOTE_DS1 39
#define NOTE_E1 41
#define NOTE_F1 44
#define NOTE_FS1 46
#define NOTE_G1 49
#define NOTE_GS1 52
#define NOTE_A1 55
#define NOTE_AS1 58
#define NOTE_B1 62
#define NOTE_C2 65
#define NOTE_CS2 69
#define NOTE_D2 73
#define NOTE_DS2 78
#define NOTE_E2 82
#define NOTE_F2 87
#define NOTE_FS2 93
#define NOTE_G2 98
#define NOTE_GS2 104
#define NOTE_A2 110
#define NOTE_AS2 117
#define NOTE_B2 123
#define NOTE_C3 131
#define NOTE_CS3 139
#define NOTE_D3 147
#define NOTE_DS3 156
#define NOTE_E3 165
#define NOTE_F3 175
#define NOTE_FS3 185
#define NOTE_G3 196
#define NOTE_GS3 208
#define NOTE_A3 220
#define NOTE_AS3 233
#define NOTE_B3 247
#define NOTE_C4 262
#define NOTE_CS4 277
#define NOTE_D4 294
#define NOTE_DS4 311
#define NOTE_E4 330
#define NOTE_F4 349
#define NOTE_FS4 370
#define NOTE_G4 392
#define NOTE_GS4 415
#define NOTE_A4 440
#define NOTE_AS4 466
#define NOTE_B4 494
#define NOTE_C5 523
#define NOTE_CS5 554
#define NOTE_D5 587
#define NOTE_DS5 622
#define NOTE_E5 659
#define NOTE_F5 698
#define NOTE_FS5 740
#define NOTE_G5 784
#define NOTE_GS5 831
#define NOTE_A5 880
#define NOTE_AS5 932
#define NOTE_B5 988
#define NOTE_C6 1047
#define NOTE_CS6 1109
#define NOTE_D6 1175
#define NOTE_DS6 1245
#define NOTE_E6 1319
#define NOTE_F6 1397
#define NOTE_FS6 1480
#define NOTE_G6 1568
#define NOTE_GS6 1661
#define NOTE_A6 1760
#define NOTE_AS6 1865
#define NOTE_B6 1976
#define NOTE_C7 2093
#define NOTE_CS7 2217
#define NOTE_D7 2349
#define NOTE_DS7 2489
#define NOTE_E7 2637
#define NOTE_F7 2794
#define NOTE_FS7 2960
#define NOTE_G7 3136
#define NOTE_GS7 3322
#define NOTE_A7 3520
#define NOTE_AS7 3729
#define NOTE_B7 3951
#define NOTE_C8 4186
#define NOTE_CS8 4435
#define NOTE_D8 4699
#define NOTE_DS8 4978
 
#define melodyPin 3
//Mario main theme melody
int melody[] = {
 NOTE_E7, NOTE_E7, 0, NOTE_E7,
 0, NOTE_C7, NOTE_E7, 0,
 NOTE_G7, 0, 0, 0,
 NOTE_G6, 0, 0, 0,
 
 NOTE_C7, 0, 0, NOTE_G6,
 0, 0, NOTE_E6, 0,
 0, NOTE_A6, 0, NOTE_B6,
 0, NOTE_AS6, NOTE_A6, 0,
 
 NOTE_G6, NOTE_E7, NOTE_G7,
 NOTE_A7, 0, NOTE_F7, NOTE_G7,
 0, NOTE_E7, 0, NOTE_C7,
 NOTE_D7, NOTE_B6, 0, 0,
 
 NOTE_C7, 0, 0, NOTE_G6,
 0, 0, NOTE_E6, 0,
 0, NOTE_A6, 0, NOTE_B6,
 0, NOTE_AS6, NOTE_A6, 0,
 
 NOTE_G6, NOTE_E7, NOTE_G7,
 NOTE_A7, 0, NOTE_F7, NOTE_G7,
 0, NOTE_E7, 0, NOTE_C7,
 NOTE_D7, NOTE_B6, 0, 0
};
//Mario main them tempo
int tempo[] = {
 12, 12, 12, 12,
 12, 12, 12, 12,
 12, 12, 12, 12,
 12, 12, 12, 12,
 
 12, 12, 12, 12,
 12, 12, 12, 12,
 12, 12, 12, 12,
 12, 12, 12, 12,
 
 9, 9, 9,
 12, 12, 12, 12,
 12, 12, 12, 12,
 12, 12, 12, 12,
 
 12, 12, 12, 12,
 12, 12, 12, 12,
 12, 12, 12, 12,
 12, 12, 12, 12,
 
 9, 9, 9,
 12, 12, 12, 12,
 12, 12, 12, 12,
 12, 12, 12, 12,
};
//Underworld melody
int underworld_melody[] = {
 NOTE_C4, NOTE_C5, NOTE_A3, NOTE_A4,
 NOTE_AS3, NOTE_AS4, 0,
 0,
 NOTE_C4, NOTE_C5, NOTE_A3, NOTE_A4,
 NOTE_AS3, NOTE_AS4, 0,
 0,
 NOTE_F3, NOTE_F4, NOTE_D3, NOTE_D4,
 NOTE_DS3, NOTE_DS4, 0,
 0,
 NOTE_F3, NOTE_F4, NOTE_D3, NOTE_D4,
 NOTE_DS3, NOTE_DS4, 0,
 0, NOTE_DS4, NOTE_CS4, NOTE_D4,
 NOTE_CS4, NOTE_DS4,
 NOTE_DS4, NOTE_GS3,
 NOTE_G3, NOTE_CS4,
 NOTE_C4, NOTE_FS4, NOTE_F4, NOTE_E3, NOTE_AS4, NOTE_A4,
 NOTE_GS4, NOTE_DS4, NOTE_B3,
 NOTE_AS3, NOTE_A3, NOTE_GS3,
 0, 0, 0
};
//Underwolrd tempo
int underworld_tempo[] = {
 12, 12, 12, 12,
 12, 12, 6,
 3,
 12, 12, 12, 12,
 12, 12, 6,
 3,
 12, 12, 12, 12,
 12, 12, 6,
 3,
 12, 12, 12, 12,
 12, 12, 6,
 6, 18, 18, 18,
 6, 6,
 6, 6,
 6, 6,
 18, 18, 18, 18, 18, 18,
 10, 10, 10,
 10, 10, 10,
 3, 3, 3
};
int length;
int tonePin=12;//buzzer pin
int switchPin=13;
int turnPin=8;
int sensorValue;
int switchState =0;
int prevSwitchState = 0;
int turnState=0;
int prevTurnState=0;
int volumePin =A2;
int volume =0;
int speedVol = 0;
void setup()
{
 
 Serial.begin(9600);
 pinMode(tonePin,OUTPUT);
 pinMode(switchPin,INPUT);
 pinMode(turnPin,INPUT);
 length = sizeof(melody)/sizeof(melody[0]);
}
void loop()
{
 sing(2);
 sing(1); 
}
int song = 0;
 
void sing(int s) {

 song = s;
 if (song == 2) {
 //Serial.println(" 'Underworld Theme'");
 int size = sizeof(underworld_melody) / sizeof(int);
 for (int thisNote = 0; thisNote < size; thisNote++) {

 int noteDuration = speedVol / underworld_tempo[thisNote];
 speedVol = analogRead(A2);
 volume = analogRead(A4);
 sensorValue = analogRead(A0);
 Serial.println(speedVol,DEC);
 Serial.println(volume,DEC);
 Serial.println(sensorValue,DEC);
 switchState = digitalRead(switchPin);
 turnState = digitalRead(turnPin);
 Serial.println(switchState);
 if(turnState==HIGH){
 delay(5000);
 break;
 
 }
 
 if(switchState ==HIGH){
 song = 1;
 break;
 }
 if(sensorValue<500){
 break;
 }
 buzz(tonePin, underworld_melody[thisNote], noteDuration * ((thisNote % 2) ? 1.5 : 0.5));

 int pauseBetweenNotes = noteDuration * 1.30;
 delay(pauseBetweenNotes);
 
 // stop the tone playing:
 buzz(tonePin, 0, noteDuration);
 
 }
 
 } else {
 
 //Serial.println(" 'Mario Theme'");
 int size = sizeof(melody) / sizeof(int);
 for (int thisNote = 0; thisNote < size; thisNote++) {

 int noteDuration = speedVol / tempo[thisNote];
 sensorValue = analogRead(A0);
 speedVol = analogRead(A2);
 volume = analogRead(A4);
 Serial.println(sensorValue,DEC);
 switchState = digitalRead(switchPin);
 turnState = digitalRead(turnPin);
 Serial.println(switchState);
 
 if(turnState==HIGH){
 delay(5000);
 break;
 
 }
 if(switchState !=HIGH){
 song=2;
 break;
 }
 if(sensorValue<500){
 break;
 }
 buzz(tonePin, melody[thisNote], noteDuration);
 int pauseBetweenNotes = noteDuration * 1.30;
 
 delay(pauseBetweenNotes);
 
 // stop the tone playing:
 buzz(tonePin, 0, noteDuration);
 
 }
 }
}

void buzz(int targetPin, long frequency, long length) {
 digitalWrite(13, HIGH);
 long delayValue = 1000000 / frequency / 2; // calculate the delay value between transitions
 //// 1 second's worth of microseconds, divided by the frequency, then split in half since
 //// there are two phases to each cycle
 long numCycles = frequency * length / 1000; // calculate the number of cycles for proper timing
 //// multiply frequency, which is really cycles per second, by the number of seconds to
 //// get the total number of cycles to produce
 for (long i = 0; i < numCycles; i++) { // for the calculated length of time...
 digitalWrite(targetPin, HIGH); // write the buzzer pin high to push out the diaphram
 delayMicroseconds(delayValue); // wait for the calculated delay value
 digitalWrite(targetPin, LOW); // write the buzzer pin low to pull back the diaphram
 delayMicroseconds(delayValue); // wait again or the calculated delay value
 }
 digitalWrite(13, LOW);
 
}
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