SPH0645LM4H - MEMS I2S microphone - Adafruit 3421
- Product Code:
- 51246665
Properties
Other features
- Brand
- Adafruit
Description
The module is equipped with a digital microphone with a range from 50 Hz to 15 kHz, and also with the I2S bus. Work voltage in the range of 1.6 V to 3.6 V.
The microphone input is located at the bottom of the board, therefore you should be mindful of the corresponding turning plate in the direction of the sound. The device works with the I2S bus and only works with devices on this bus, for example,Arduino M0,M0 FeatherorRaspberry Pi.
ConnectionThe module has a simple goldpin connectors for self-soldering - raster 2.54 mm, communicates via I2S. Description of the specific outputs is given in the table.
Pin Symbol Description 1 3B Power to the layout from 1.6 V to 3.6 V. 2 GND
The ground of the system.
3 BCLKBit Clock. The input coming from microcontroller
informing the microphone in data transfer mode.
4 DOUT Data output from the microphone. 5 LRCLLeft/Right Clock. Tells you when to start the transfer.
Low sends on left channel
and high state on right.
6 SELThe selection of channel. Default in the low state
that is, the broadcasting is on the left channel.
When you connect to a high state it is transmitted
through the right channel.
Specification- Working voltage: 1.6 V to 3.6 V
- Operating range: 50 Hz to 15 kHz
- Digital microphone
- Communication: I2S
- Complete goldpiny for self-soldering
- Dimensions: 17 x 13 x 2 mm
Useful links
- The manufacturer's website Adafruit 3421
- User manual
- Library for Arduino Zero, or Pen M0
- Example for Raspberry Pi
- Diagram of the module
