4D Systems 3.3 → 5V UART Audio Module, 21 x 20.5 x 11.3mm

  • RS Stock No. 841-7869
  • Mfr. Part No. SOMO-II
  • Brand 4D Systems
Technical Reference
Legislation and Compliance
RoHS Certificate of Compliance
COO (Country of Origin): CN
Product Details

SOMO-II Audio-Sound Module

The SOund MOdule 2 (SOMO-II), from 4D Systems, is a compact audio-sound module designed for all embedded audio-sound applications. The SOMO-II is designed to play MP3 audio files from a micro-SD card or USB 2.0 flash drive with extra components. An on-board 16-bit MCU is specifically designed for hardware audio decoding.
The files can be stored in the root folder of the micro-SD or USB flash drive. It can take up to 99 folders with 255 songs in each. The audio files can be loaded onto the micro-SD card or USB flash drive using a PC or laptop without additional software.

The SOMO-II offers two modes, SERIAL-MODE and KEY-MODE:
SERIAL-MODE has a 2-wire serial UART interface to a microcontroller via the TX and RX pins. A range of audio operations such as play, pause, stop, next, previous and volume control are available to the host micro through serial commands.
KEY-MODE is a stand-alone operation where the host micro is not needed. It is then possible to control the module with just a few push buttons.

Features of the SOMO-II audio-sound module:
Compact 16-pin package
Dimensions: 21 x 20.5 x 11.3 mm
24-bit DAC output
SERIAL-MODE or KEY-MODE
Mono amplified speaker output
Stereo DAC audio output for external amp/headphones
On-board micro-SD adaptor
Supports up to 32GB micro-SD or USB 2.0 flash drive
3.3V to 5V DC voltage range (single supply)

4D Systems Display Accessories

Specifications
Attribute Value
Included Features Low-Cost Module for All Embedded Audio Sound Applications, RoHS and CE Compliant
Supported Audio Interfaces Stereo DAC output
Supported Bus Interfaces UART
Supply Voltage 3.3 → 5V
Dimensions 21 x 20.5 x 11.3mm
Height 11.3mm
Length 21mm
Maximum Operating Temperature +70°C
Minimum Operating Temperature 0°C
Width 20.5mm
Available to back order for despatch 13/01/2020
Price Each
£ 20.10
(exc. VAT)
£ 24.12
(inc. VAT)
Units
Per unit
1 - 9
£20.10
10 +
£18.65
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