uMP3 Playback Module

Current Hardware Version: uMP3-110 (A3)

Below are some resources for the uMP3 Playback Module.

• uMP3 Product Page
• Libraries
• Projects and Examples
• Beta Firmware - See what’s new!

Documentation

INFO: This documentation is for the latest version of firmware (111.08 or newer).

• Features
• Overview

Specifications and Standards

• Electrical Characteristics
• Mechanical Drawing

Connectors

• Input Interface

Communications Protocol

• Description
• Command Format

Settings

• Communication Settings
  • Serial Bitrate
  • Prompt Character
  • Response Delay
• File System Settings
  • Copy Progress Style
  • Read/Write Line Ending
  • Write Time-out
  • Directory Listing Style
• Non-volatile Playback Settings (loaded on start-up)
  • Volume
  • Loop Count
  • Boost
• Input/Output Interface Settings
  • Input Style
  • Hardware Busy Indicator
  • Input File Number Offset
  • Input Non-stop Control
  • Input Polarity Control
  • Switch Input Debounce Mode

Command Set

General Commands

• Settings
• Time
• Version

Playback Commands

• Play File
• Play Next
• Jump (FF/REW)
• Stop
• Pause
• Playback Status
• Playback Information
• Play Tone
• Playback Speed Change
• Reset Audio
• Volume
• Loop Count
• Audio Boost

File System Commands

INFO: All File System Commands are identical to the file commands available on the uMMC and rMP3. Be sure to prefix each command with “FC”.

• Set Attributes
• Copy
• Close
• Change Timestamp
• Erase File
• Free Handle
• Info
• Jump
• Card Info
• List Directory
• Make Directory
• Rename
• Open
• Query Volume/Card
• Read
• Read Line
• Truncate
• Write
• Write Line
• File Status

Appendix

• Settings Table
• Error Codes