How to Use Grove Speaker: Examples, Pinouts, and Specs

The Grove Speaker (Manufacturer Part ID: 107020001) is a compact audio output device designed by SEEED Arduino for use with Grove-compatible systems. It enables sound playback in a variety of electronic projects, making it ideal for applications such as alarms, notifications, simple music playback, and interactive systems. Its plug-and-play design ensures easy integration into projects, even for beginners.

• Audio feedback for electronic devices
• Alarm and notification systems
• Simple music or tone generation
• Interactive projects and games
• Educational and prototyping purposes

The Grove Speaker is designed to deliver reliable audio output with minimal setup. Below are its key technical details:

The Grove Speaker uses a standard 4-pin Grove connector. The pinout is as follows:

The Grove Speaker is straightforward to use and can be connected to a microcontroller, such as an Arduino UNO, via the Grove interface. Below are the steps to use the component effectively:

1. Connect the Grove Speaker to a Grove Base Shield using a Grove cable.
2. Attach the Base Shield to your Arduino UNO or compatible microcontroller.
3. Plug the Grove Speaker into a digital I/O port (e.g., D8).

The Grove Speaker produces sound by receiving a digital signal. You can use the Arduino tone() function to generate specific frequencies.

// Example: Generate a simple tone using the Grove Speaker
// Connect the Grove Speaker to digital pin D8 on the Arduino UNO

#define SPEAKER_PIN 8  // Define the pin connected to the Grove Speaker

void setup() {
  // No setup required for the tone() function
}

void loop() {
  tone(SPEAKER_PIN, 1000, 500);  // Play a 1kHz tone for 500ms
  delay(1000);                   // Wait for 1 second
  tone(SPEAKER_PIN, 1500, 500);  // Play a 1.5kHz tone for 500ms
  delay(1000);                   // Wait for 1 second
}

• Power Supply: Ensure the power supply voltage is within the 3.3V to 5V range to avoid damaging the speaker.
• Signal Input: The speaker is designed for digital signals. Avoid applying analog signals directly.
• Volume Control: The volume is fixed and cannot be adjusted directly on the speaker. To control volume, adjust the signal's duty cycle or amplitude programmatically.

1. Can I use the Grove Speaker with a Raspberry Pi?

   • Yes, the Grove Speaker can be used with a Raspberry Pi. However, you may need to use a Grove HAT or manually connect the pins to the GPIO.

2. What is the maximum volume of the speaker?

   • The speaker has a fixed output power of 0.5W. The volume cannot be adjusted directly but can be controlled programmatically by modifying the signal.

3. Can the Grove Speaker play complex audio files?

   • No, the Grove Speaker is designed for simple tone generation and cannot play complex audio files like MP3 or WAV.

4. Is the Grove Speaker compatible with 3.3V systems?

   • Yes, the Grove Speaker works with both 3.3V and 5V systems, making it compatible with a wide range of microcontrollers.

By following this documentation, you can effectively integrate the Grove Speaker into your projects and troubleshoot any issues that arise.