Datasheet

4D SYSTEMS SOMO-II

SOMO-II Embedded Audio-Sound Module

SERIAL MODE – Example Connection Diagram 5.2.

This example schematic shows a simple Serial connection to an external Host such as a 3.3V Microcontroller. It

also shows the connections for an external speaker.

7E 3B 00 00 01 FF C4 EF

USB Flash Drive Removed. Sent every time a USD Flash drive is unplugged.

7E 3B 00 00 02 FF C3 EF

micro-SD Card Removed. Sent every time a micro-SD card is ejected.

NOTE: when the card is ejected, multiple messages may be sent (ejected, inserted

and ejected again). This is a side-effect of the type of micro-SD socket that is

installed if the card is ejected slowly, ie holding in the card before releasing.

7E 3C 00 00 01 FF C3 EF

7E 3C 00 00 54 FF 70 EF

USB Flash Drive source, Finished playing Track 01

USB Flash Drive source, Finished playing Track 84 (0x54)

7E 3D 00 00 02 FF C1 EF

7E 3D 00 00 0A FF B9 EF

micro-SD Card source, Finished playing Track 02

micro-SD Card source, Finished playing Track 10 (0x0A)

7E 3F 00 00 00 FF C1 EF

SOMO-II has just started up, No media detected

7E 3F 00 00 01 FF C0 EF

SOMO-II has just started up, USB Flash Drive detected

7E 3F 00 00 02 FF BF EF

SOMO-II has just started up, micro-SD Card detected

7E 3F 00 00 03 FF BE EF

SOMO-II has just started up, Both micro-SD and USB Flash Drive detected