It is easy project but difference with other projects is several – after pushing the push button the sound automatically stops after a time (which happens with normal door bells), three LEDs used for rhythmic lighting with the music and very less number of components used. Only limitations are sound will not be very loud with buzzer and it is slightly difficult for the beginners to change the music. Here is circuit diagram, code, list of components & demonstration video of Arduino door bell with push button with 3 led.
Arduino Door Bell With Push Button With 3 LED : List of Components
Needed components are quite less in number :
- Arduino board or components to built Arduino
- 3 LED
- Breadboard
- Jumper wires
- 3 x 220 Ohm resistors
- 1 x 1 K Ohm resistor
- 1 x Push Button
- 1 x Piezzo Buzzer
Arduino Door Bell With Push Button With 3 LED : Circuit Diagram & Demonstration Video
Here is video :
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Pin 8 = buzzer
Pin 12 = push button
Pin 3,4,5 = LED each
Here is the circuit diagram :
Arduino Door Bell With Push Button With 3 LED : Code
We suggest to check the official example of Arduino Melody to get used and modify the melody part of the code. Here is the main code :
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#include "pitches.h" int melody[]={NOTE_C4, NOTE_G3, NOTE_G3, NOTE_A3, NOTE_G3, 0, NOTE_B3, NOTE_C4}; int buttonPin= 12; const int rPin = 5; //red LED const int gPin = 4; //green LED const int bPin = 3; //blue LED int ledState = 0; int ledOn = false; int noteDurations[]={4, 8, 8, 4, 4, 4, 4, 4}; void setup(){ pinMode(buttonPin, INPUT); pinMode(rPin, OUTPUT); pinMode(gPin, OUTPUT); pinMode(bPin, OUTPUT); } void loop(){ int buttonState = digitalRead(buttonPin); if (buttonState == 1){ for (int thisNote=0; thisNote <8; thisNote++){ if (thisNote%3==0){ digitalWrite(rPin, HIGH); digitalWrite(gPin, LOW); digitalWrite(bPin, LOW); } else if (thisNote%3==1){ digitalWrite(rPin, LOW); digitalWrite(gPin, HIGH); digitalWrite(bPin, LOW); } else if (thisNote%3==2){ digitalWrite(rPin, LOW); digitalWrite(gPin, LOW); digitalWrite(bPin, HIGH); } int noteDuration = 1000 / noteDurations [thisNote]; tone(8, melody [thisNote], noteDuration); int pauseBetweenNotes = noteDuration * 1.30; delay(pauseBetweenNotes); noTone(8); } } } |
After copy-pasting the code, you need to click the Downwards arrow options menu on right hand side on Arduino IDE’s code window to bring an options menu, click New Tab option and paste this :
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/************************************************* * Public Constants *************************************************/ #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 |
Also, we have this project on Fritzing and Github. We have an old post on various Arduino Melodies.
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