# Audio

## Products in category “Audio”

Pololu item #: 1484
Quantity:

## 9mm Electromagnetic Buzzer: 40Ω, 4-6V, Top Opening

This electromagnetic transducer is a compact way to add sound to your embedded project: just supply it with a PWM signal at 4 V to 6 V and it will produce sound at the frequency of the supplied signal from an opening on the top. Since the 60 mA maximum current draw is higher than what can be supplied by a typical microcontroller I/O pin, you will probably want to control it with a suitable driver, such as a small MOSFET.

Pololu item #: 1620
Quantity:

## ADMP401 MEMS Microphone Breakout Board

Ready to add sound detection to your next project? This small breakout board from SparkFun couples a tiny microelectromechanical system (MEMS) microphone with a 67x gain external amplifying circuit, converting sound into analog voltage signals that can be measured by a microcontroller’s analog-to-digital converter (ADC). The unit comes fully assembled as shown and works from 1.5 to 3.3 V.

Pololu item #: 2744
Out of stock.

## Evaluation Board for Si4703 FM Tuner

This is an evaluation board from SparkFun for the Silicon Laboratories Si4703 FM tuner chip. Beyond being a simple FM radio, the Si4703 is also capable of detecting and processing both Radio Data Service (RDS) and Radio Broadcast Data Service (RBDS) information. The Si4703 does filtering, carrier detection and captures data such as the station ID and song name.

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