Product Description:
BT201 Bluetooth Audio Receiver Playback Module
- BT/UDISK/TF Card Playback
- Serial AT command MCU Control
- 3W Amplifier
- SPP Pass through
The BT-201 is a Mono MP3 Bluetooth Digital Power Amplifier Module. It supports Bluetooth/U-disk/TF card audio input. Built-in 3W amplifier function so that the user can connect speakers directly. Support select music and adjust the volume. The most unique and useful feature of this module is its serial interface (RXD, TXD) which allows audio control via serial AT commands. There is a whole list of AT commands that can support the manipulation of playback volume, files, and much more. You can develop all kind of smart speaker applications using this versatile module. A simple tutorial for Arduino interfacing on a similar module can e found here, after a few minor modifications this library can be used with the BT201 module as well.
Features
- Built-in 3W amplifier
- Support DC 5V input
- Industrial design is stable and efficient
- Support BLE/SPP data transmission
- MP3 15meter lossless data transmission
- Support UART
- Support button adjust control
- Support U-disk(Max 128G)
- Support TF card(Max 128G)
Parameters
- Model BT-201
- Working voltage 3.3V to 5V DC
- Quiescent current:20mA
- Supports file format MP3/WAV/WMA/FLAC/AAC/APE
- UART interface - TTL level
- Adjustable Baud rate
- Output power - 4ohm, 3W
- Operating Temperature - (-20℃ to 85℃)
- Operating Humidity - (5% to 95%RH)
- Dimensions - 60 x 40 x 8 mm
Button Functions
- PREV/V-: Short press to select the previous track. Long press to decrease volume.
- NEXT/V+: Short press to select the next track. Long press to increase volume.
- MODE: Switch audio input type from Bluetooth, U-disk, and TF card.
- PP: Play or Pause.
Functions
- Automatically generate Bluetooth MAC address.
- Supports MP3/WAV/WMA/FLAC/AAC/APE file format decoding.
- Maximum support 128G U-disk and TF card.
- Supports breakpoint memory and play memory.
- Supports Bluetooth audio input.
- Supports play/pause, switch previous/next music.
- Supports phone call function. User can set cancel calls.
- Supports Answer / Hang up / Call back / Refuse phone call.
- Supports Bluetooth 5.0.
- Supports HFP/A2DP/AVRCP/HSP/GAVDP/IOP/SPP/BLE.
- Maximum communication distance approximately 15 meters.
- Frequency range 2.4GHz to 2.480GHz - Class2 @ 4dbM.
UART description:
- Baud rate - 115200bps (User can set by command)
- Data bit - 8bit
- Stop bit - 1bit
- Check Digit - None
- Control flow - None
- Control command format - AT+[]rn
- Return data format - []rn
- AT+ - Start of a control command.
- - Specific control command.
- [] - The parameter of CMD if need.
- rn - Enter and Wrap.
- - The start of return data.
