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SparkFun Analog MEMS Microphone Breakout - SPH8878LR5H-1
The SparkFun Analog MEMS Microphone Breakout makes it easy to work with the SPH8878LR5H-1 analog microphone from Knowles. This board features an OpAmp to bring the output of the microphone to a usable level, allowing you to plug directly into an ADC on a microcontroller or something like the SparkFun Spectrum Shield.
In addition to amplifying the signal, the OpAmp adds a bias voltage of 1/2 VCC. With sound sources such as a normal speaking voice a few feet away from the microphone, the AUD output signal will be at about 200mV peak-to-peak. Also note, this low profile microphone has its port on the bottom side, so the microphone can be mounted flush to the outer surface of your enclosure. This microphone is omni-directional, which means it does a good job of picking up sound sources from all directions.
- Supply Voltage: 2.3-3.6V
- Average Current Consumption: 265µA
- Frequency Range: 7Hz-36kHz
- Signal-to-Noise Ratio: 66dBV/Pa
- Sensitivity: -44dBV/Pa (Single-Ended Mode)
- -3dB Roll Off at 7Hz / +3dB Flatness at 36kHz
- Acoustic Overload Point: 134dB SPL
- OPA344 provides 600Ω output impedance
- Schematic
- Eagle Files
- Board Dimensions
- Hookup Guide
- Datasheet (SPH8878LR5H-1)
- GitHub Hardware Repo
SparkFun Analog MEMS Microphone Breakout - SPH8878LR5H-1 Product Help and Resources
Analog MEMS Microphone Breakout - SPH8878LR5H-1 Hookup Guide
March 17, 2022
Get started with sound monitoring using the SparkFun analog MEMS microphone breakout board with Arduino!
AzureWave Thing Plus (AW-CU488) Hookup Guide
September 22, 2022
The SparkFun AzureWave Thing Plus is a Feather form-factor development board equipped with the AW-CU488. We'll highlight key features of the board and show you to get started with the development board. A few Arduino examples will be highlighted to connect to a WiFi router, calculate the Fast Fourier Transform (FFT) from an input microphone, output an analog signal to a speaker, and connect an Qwiic-enabled device.
Audio Codec Breakout - WM8960 Hookup Guide
January 26, 2023
The SparkFun Audio Codec Breakout - WM8960 is a low power, high quality stereo codec chock full of features. In this tutorial, some of these features by using an Arduino microcontroller to configure the audio codec and pass audio to the headphone or speaker channels.
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Customer Reviews
4.5 out of 5
Based on 2 ratings:
Super easy
This was almost too easy, works perfect, paired with a teensy 4.0
Works well
I use this microphone to detect motor vibratrions, the do an FFT and determine the highest componentes of the spectrum. It is sensitive enough for what I need.