Speakers & Buzzers

1. Definition

1.1 Speakers & Buzzers

Speakers and buzzers are output devices that convert electrical signals into sound.

• Speakers produce a wide range of sounds including music, speech, and effects.
• Buzzers generate a single tone or beep for alerts and notifications.

Symbol

2. Types

• Piezo Buzzer : Uses piezoelectric effect to generate sound, common for alarms.
• Magnetic Buzzer : Uses an electromagnet to vibrate a diaphragm, often for timers.
• Mini Speaker : Produces a range of audio frequencies, suitable for voice or music.
• Active Buzzer : Generates sound when powered, no signal required.
• Passive Buzzer : Requires an oscillating signal to produce sound.

3. Applications

• Audio feedback in electronic devices.
• Alarms and alerts in security systems.
• Music and sound effects in toys and gadgets.
• Notification tones in embedded systems.
• Voice output for assistive devices.

4. Precautions

• Avoid exceeding voltage/current limits to prevent damage.
• Do not place near strong magnets (for magnetic types) as it can affect performance.
• Keep away from water unless the device is waterproof.
• Limit continuous high-volume operation to avoid overheating.

5. Video Explanation

video coming soon