Datasheet
4D SYSTEMS SOMO-II
© 2014 4D SYSTEMS Page 15 of 17 www.4dsystems.com.au
SOMO-II Embedded Audio-Sound Module
10. Optional Connections
USB Socket for USB Flash Drive 10.1.
The SOMO-II Module is capable of having an external USB socket wired to it, so a USB Flash drive can be
connected for the source of MP3 files. This USB Flash Drive can be selected with either push buttons or with a
serial command, and can be swapped back to the microSD card at any time.
The following diagram illustrates the simple connections required to wire up a USB Socket. Depending on the
requirements of your project/system, additional components may be justified, such as ESD projection,
capacitors etc. This is a simple illustration only.