SparkFun Electret Microphone Breakout
BOB-12758

SparkFun Electret Microphone Breakout

SKU: BOB-12758

This breakout features an omnidirectional electret microphone and an onboard 60x preamplifier, letting you add easy sound detection to your next project.

$5.95
In stock
SKU
BOB-12758
In stock
Stock/Discounts

Helpful Documentation

Product Overview

This fully assembled breakout board couples the standalone electret microphone with a powerful 60x microphone preamplifier. This board can easily detect ambient sounds like voices, hand claps, or door knocks, then amplify them to a level that your microcontroller’s analog-to-digital converter (ADC) can read.

Instead of dealing with raw sound volume, this breakout translates audio amplitude by capturing sound waves between the microphone's conducting plates and converting them directly into readable electrical signals.

A SparkFun Electret Microphone Breakout connected to a RedBoard-driven system.

No Frills Hardware Integration

Because the preamplifier circuit is already built-in, integrating audio detection into your project is incredibly straightforward:

  • Broad Voltage Compatibility: Compatible with systems operating anywhere from 2.7V up to 5.5V, making it a perfect match for both 3.3V and 5V microcontrollers.
  • Omnidirectional Capture: The foil electret design can capture audio from all directions across a wide 100Hz to 10,000Hz frequency range.
  • Direct ADC Connection: The amplified electrical signals are output directly to your board, ready for processing without requiring complex external audio codecs.

Whether you are building a sound-reactive lighting display, a noise-level monitor, or an interactive prop, this breakout provides a simple and effective way to give your hardware ears.

Features & Specs

  • Audio Performance:
    • Directionality: Omni-Directional Foil Electret
    • Frequency Range: 100Hz to 10,000Hz
    • Sensitivity: -46 ± 2.0dB (0dB = 1V / Pa) at 1kHz
    • Minimum Signal-to-Noise Ratio (SNR): 58dB
    • Maximum Input S.P.L.: 110dB at 1.0KHz (THD < 1%)
    • Sensitivity Reduction: -3dB (from 3.0V to 2.0V)
  • Electrical Specifications:
    • Breakout Operating Voltage: 2.7V to 5.5V
    • Amplifier: Texas Instruments OPA344
    • Loading Resistance: Integrated onboard resistors (no external components required)
    • Output Pins:
      • VCC
      • GND
      • AUD
    • Maximum Current: 0.5 mA
  • Environmental Ratings:
    • Operating Temperature: -20ºC to +60ºC
    • Storage Temperature: -40ºC to +75ºC

Documentation

WARNING: This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. See link below for more information. www.P65Warnings.ca.gov

Customer Reviews

SparkFun Electret Microphone Breakout
SparkFun Electret Microphone Breakout
$5.95
BOB-12758
$5.95 retail price.

Available Discounts

  • $5.65 | 10+ units
  • $5.36 | 25+ units
  • $5.06 | 100+ units

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