Skip to main content

34. Arduino Based Piano

Hey Everyone!
Today I am going to teach you how to make an Arduino based Piano. I missed playing my piano back home and it has been 2 years since I played it, so I thought of making one with Arduino! Even though it may not look or sound like an actual piano, it does seem to make music. 

Supplies

  • Arduino Uno
  • USB Type A/ B cable (for Arduino Uno)
  • Solderless Breadboard - Full
  • Passive Buzzer Module (KY-006)
  • Push-buttons (x13)
  • Male-to-Male Jumper wires (x16) - 30 cm
  • Jumpers (x15) - To reduce the usage of wires

Setup



Carefully place the buttons on the breadboard. There must be a spacing of one hole between each push-buttons. Due to lack of Digital I/O ports in my Arduino Uno, I have only used keys from C (fourth octave) to F(fifth octave). I have also included F sharp (or G flat) and A sharp (or B flat) in my piano by using two different coloured push-buttons. I have not used the Analog I/O ports because turning on a pullup will affect the values reported by the analogRead( ).

Connections

All push-buttons should be connected to Ground (GND).

Push-buttons

Fourth Octave
  • C - D0
  • D - D1
  • E - D2
  • F - D3
  • F# - D4
  • G - D5
  • A - D6
  • A# - D7
  • B - D8
Fifth Octave
  • C - D10
  • D - D11
  • E - D12
  • F - D13

Passive Buzzer Module (KY-006)

  • (+) - 5V
  • (-) - Ground (GND)
  • S - D9

Coding

First of all, create global variables for your push-buttons and your buzzer. Within the void setup( ), call pinMode( ) to configure each of your components' pins as INPUT or OUTPUT. If you have not connected your push-buttons to a 1 kΩ resistor, declare the pins as INPUT_PULLUP. As mentioned in Arduino's tutorial, pressing the push-button will send a LOW signal when its pin is configured as INPUT_PULLUP. Declare the pin of Passive buzzer as OUTPUT because it is a transducer (a component that converts electrical energy into light, heat or sound). 
Remember that the push-button is a momentary switch and will only complete the circuit when pressed. If it's released, the circuit will have a gap again. In this case, we will not be debouncing our push-buttons because if you remember quite well, a piano only produces sound when a key is pressed. The keys and momentary switch almost work in the same way, except for the strings that are hammered in the piano when a key is pressed. 
Therefore, within the void loop( ), you will be using if( ) and else if( ) to make your piano work. Please refer to this website to get the frequencies of each piano note. Round the values to the nearest whole number before using tone( ) to produce sounds from your passive buzzer. The duration of the sound produced by the buzzer once I press a push-button is 30 milliseconds. You can shorten this duration according to your preferences. For example, if the music is fast, you must shorten the duration as the tone( ) function only works for one pin at a time.
Here is an example of code:
void loop( ){
if ((digitalRead(C4))==LOW){
tone(Buzzer, 262, 30);
}else if ((digitalRead(D4)==LOW){
tone(Buzzer, 294, 30);
}
...
}
*NOTE: This project is subject to copyright (All rights reserved). Re-publishing this exact project is prohibited.
If you have any questions with the coding, please feel free to comment below or send an email to arduinoprojectsbyr@gmail.com and I will definitely help you out.

Final Look

If anyone has questions, or suggestions, about this project, please feel free to comment below or send an email to arduinoprojectsbyr@gmail.com.

Comments

Post a Comment

Popular posts from this blog

51. Buzz wire game using Arduino

Hello everyone! This is my first Arduino project in 2020 and it is going to be a fun and simple project. You would have heard of the Buzz Wire, a steady hand game, and today you will be learning to make one using Arduino. Hardware components used in this project Arduino Nano USB Type A to mini B cable (for Arduino Nano) Solderless Breadboard - Mini and Full-size LEDs (x2) - Green and Red Resistors (x2) - 220 Ω  Active Buzzer module (KY-012) LCD display module with I2C interface - 16x2 Male-to-Male Jumper wires (x4) - 10cm Female-to-Male Jumper wires (x5) - 20 cm Jumpers (x5) - to reduce the usage of wires Copper wire  Tape (or any form of insulation)  Setup Your hardware setup must look somewhat similar to the ones in the images above. The beginning and end of the copper wire maze must be taped to prevent conductivity between the wire loop and maze. Connections LCD display module with I2C interface GND - Ground VCC - 5V SDA -...
Post a Comment
Read more

71. Buzz Wire Game ( Version 2.0 ) using Arduino

Hey Everyone! I hope that everyone's safe during this pandemic. Today I am going to explain you about the second version of my Buzz wire game. People who are bored of staying indoors can find this game pretty interesting and fun to play.  If you are a beginner, you can start off with my first version of this project :  51. Buzz wire game using Arduino   Hardware components used in this project Arduino Uno Solderless Breadboard (x2) - Full/ Full+ LCD display module with I2C module - 16x2 Potentiometer - B20K Push-buttons (x3) Resistor - 220 Ω Active Buzzer module (KY-012) LED - Red Copper Wire - 19/ 20 gauge thick Male-to-Male Jumper wires - 10cm and 20cm Wire - Long enough to connect the loop of copper wire to ground Other tools required for this project Cutting pliers - To cut the right amount of copper wire Round-nose pliers - To bend the copper wire and make a maze and loop Hardware setup Connections Wire Maze - D2 Wire loop - Ground (GND) B20K Potentiometer S - A0 (+)...
1 comment
Read more

86. RFID Health tag (Arduino and Python)

 Hey everyone, Sorry I have not uploaded in a while. Today, I will be sharing an interesting project with all of you. This RFID Health tag project is useful when it comes to keeping track of vaccinated individuals, their biodata and their health conditions and medications. For this project, you will be needing Arduino and Python. Read on further to see how I did this project. Hardware components used in this project Arduino Uno Solderless Breadboard - Half+ MRFC522 RFID reader RFID key tags (x5) Push-buttons (x2) Male-to-Male Jumper wires (x12) USB Type A/ B cable (for Arduino Uno) Software required Arduino IDE - latest version recommended Python 3.8 Schematic MFRC522 RFID reader SDA/ SS - D10 SCK - D13 MOSI - D11 MISO - D12 IRQ - Not connected GND - Ground RST/ RESET - D9 3.3V - 3.3V Push-buttons Submit button - D4 Retrieve button - D5 Coding Arduino For this project, you will be using the following libraries: MFRC522 by miguelbalboa -  https://github.com/miguelbalboa/rfid SP...
Post a Comment
Read more