DFRobot
Voice Prompt Module with Integrated MP3 Player and Speaker
· MPN: DFR1173
This compact voice prompt module integrates an intelligent MP3 playback chip with a 1 W speaker in a tiny 30 × 11 mm package. It supports MP3, WAV, and WMA h...
This compact voice prompt module integrates an intelligent MP3 playback chip with a 1 W speaker in a tiny 30 × 11 mm package. It supports MP3, WAV, and WMA hardware decoding with 16 MB of on-board storage that retains files even when power is lost.
Control playback via the built-in button (short press for next track, double press for previous, long press for pause/play) or send serial commands over TTL for automated voice prompt systems. Simple enough for standalone use with a battery and buttons, yet flexible enough to integrate into larger systems.
Key Features
- Hardware MP3/WAV/WMA Decoding – High-quality DAC output for clear audio playback
- 16 MB On-Board Storage – Non-volatile memory retains MP3 files without power
- 1 W Speaker (4 Ω) – Built-in speaker delivers clear audio from the module itself
- Dual Control Modes – TTL serial commands or 1-channel button control via P1 interface
- Ultra-Compact – Just 30 × 11 mm for easy installation in space-constrained projects
- Wide Operating Temperature – -20°C to +70°C for diverse environments
Specifications
- Supply Voltage – DC 5 V
- Output Power – 1 W
- Speaker Impedance – 4 Ω
- File Formats – MP3, WAV, WMA
- Storage – 16 MB internal
- Interface – TTL serial / 1-channel switch
- Operating Temperature – -20°C to +70°C
- Dimensions – 30 × 11 mm
Button Controls (P1 Interface)
- Short Press – Next track
- Double Press – Previous track
- Long Press – Pause / Play
Ideal For
- Voice prompt and announcement systems
- Interactive exhibits and kiosk audio
- Alarm and alert notifications
- Navigation audio and safety announcements
- IoT and embedded audio playback projects
Package Contents
- 1× MP3 Voice Prompt Module
- 1× USB to 4-pin DuPont Cable
Jargon buster
Plain-language definitions for the technical terms used above.
- DAC
- A digital-to-analogue converter turns numbers from the microcontroller into a real analogue voltage. It matters if you want to generate simple waveforms, audio-style signals, or variable control voltages rather than just on/off outputs.
- IoT
- Short for Internet of Things, meaning physical devices that connect to networks or the internet to send data or be controlled remotely. It matters if you want projects such as connected sensors, remote controls or classroom data-logging activities.
- TTL serial
- A simple serial data connection that uses microcontroller logic-level signals rather than computer RS-232 voltage levels. It matters because the camera can connect directly to many microcontroller pins or a USB-to-TTL serial adapter, but not safely to an old-style RS-232 port without conversion.
Find this product in
Audio & Video
Brands
Supplier page — dfrobot.com
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Related Tutorials
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