Concept
For this assignment, Fatima and I created a mini piano keyboard using Arduino with 7 notes (C, D, E, F, G, A, B). Each note is played using a button, and the pitch can be changed using the potentiometer. The switch allows the sound to shift higher or stay at the original pitch depending on its position.
Each button corresponds to a specific frequency for one note. When you press a button, the Arduino sends a signal to the buzzer to play that frequency. The blue switch works as a pitch modifier. This combination creates a mini keyboard where you can experiment with simple melodies and play around with tone changes.
Schematic
Digital Arduino
Demo Video
Reflection
To improve the project, we could’ve add more interactivity by including volume control, perhaps using a potentiometer. Another idea is to incorporate visual feedback, like an LED or an LCD display, to indicate which note or pitch is being played. These improvements would make the keyboard more versatile and closer to a real musical instrument.