on-Destructive MP3 Decoding Board with Self-Powered TF Card U Disk Decoded Player Module
This module can play MP3 tracks from a micro SD card or a USB memory device. It is ideal for playing messages or warning signals on platforms with superior sound quality.
It has an onboard 2W mono amplifier (up to 3W with 5V power) that can connect to a speaker (4 Ω 3W recommended) or a 3.5mm headphone jack for headphones or external audio. It also has a Micro USB port that can be powered by a mobile power supply, a 3.7V lithium battery, or a USB 5V source. It supports both TF Card (mobile phone memory card) and U disk modes.
It has speaker terminals that do not require soldering and allow easy wiring. The module is designed to be modified.
Note:
- “Long press” approximate 2S.
- If you use U disk mode, it is recommended 5V power supply, and some U disk does not support 3.7V power supply.
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