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SOMO-14D
Embedded Audio-Sound Module
Description:
The
SOMO-14D
is a tiny Audio-Sound module that can play back pre-stored audio files
such as voice and music from a micro-SD memory card. The module supports
4-bit ADPCM audio files with sample rates from 6Khz up to 36Khz. By using
the freely available software tool, any WAVE(.wav) or MP3(.mp3) file can
be easily converted to the ADPCM(.ad4) format which can then be can be
saved to a micro-SD memory card. The compact 14pin drop-in-module takes
up very minimal board space and is ideal for any application that requires
embedded audio.
The
module offers two modes of operation, SERIAL-MODE and the KEY-MODE.
The
SERIAL-MODE provides a simple 2-wire interface to any micro-controller
via its DATA and CLK lines. Audio operations such as PLAY, PAUSE, STOP
and VOLUME control functions are all available to the host micro via simple
serial commands.
The
KEY-MODE provides a stand alone operation where a host micro is not required.
With only 3 push buttons, a 3V battery and a speaker, an extremely compact
and low component count MP3-Player like system can be implemented.
In
short, the SOMO offers a very flexible, compact and low cost embedded audio
solution for many applications.
Features:
-
Low-cost
module for all embedded Audio-Sound applications.
-
Supports
4-bit ADPCM (.ad4) file formats with sampling rates from 6Khz to 36Khz.
-
SERIAL
MODE: Supports a 2-Wire (Data, Clock) interface to any micro-controller.
-
KEY-MODE:
Supports a simple stand alone operation without a host micro.
-
Differential
2 line PWM output for direct speaker connection (8 Ohm/0.5W).
-
Dedicated
16-bit DAC/PWM audio output to use with an external amplifier.
-
On-board
micro-SD memory card adaptor for storing of audio, voice and music files
(up to 512 files).
-
Supports
64Mb to 2Gig micro-SD memory cards (FAT format).
-
Compact
size measuring only 18.3 x 20.8 mm.
-
2.7V to
3.6V DC voltage range (single supply).
-
Low Power
Idle current of 8.0uA
-
RoHS Compliant.
Customer
Feedback:
12-
Feb-10 Here is my simple program for using the SOMO-14D under BASCOM-AVR.
It can be modified according to personal requirements. Maybe it will help
somebody. Klaus
http://4d.websitetoolbox.com/post?id=4573130
Support:
1)
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2)
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3)
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4)
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Then
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