🎶 Arduino Sound System with Keyboard, Buzzer, LEDs & Sound Sensor

This project is a creative Arduino Uno-based sound system that allows users to generate tones using a keypad, visualize responses with LEDs, hear them through a buzzer, and interact with a sound sensor for dynamic input.

🧰 Features

• Keypad input to trigger custom tones
• Buzzer outputs the corresponding sound
• LEDs light up based on tone or interaction
• Sound sensor detects external noise and reacts accordingly
• Can be used as a basic music toy or educational sound experiment

🛠️ Components Used

• Arduino Uno
• 4x4 Matrix Keypad
• Piezo Buzzer
• Sound Sensor
• LEDs
• Resistors
• Breadboard & jumper wires
• Power source

⚙️ How It Works

1. The user presses a code on the keypad.
2. Each code is mapped to a specific tone/frequency.
3. The buzzer plays the tone, and the LED lights up.
4. The sound sensor can detect environmental noise and trigger visual or sound feedback.

🧪 Setup Instructions

1. Connect components to the Arduino as per your wiring diagram.
2. Upload the code from EQUIPO.ino using the Arduino IDE.
3. Interact using the keypad and observe the responses.

🎵 Possible Extensions

• Record and playback tone sequences
• Use a small speaker for better sound quality
• Integrate LCD to display tone names
• Add tempo or volume control with potentiometers

💻 Code

Arduino sketch included in the repository (EQUIPO.ino).
Libraries used:

• Keypad.h

“Creativity is intelligence having fun.” – Albert Einstein