بلوتوث صوت BT201 Audio with Serial:

 

1.Description:

BT-201 is a Mono MP3 Bluetooth Digital Power Amplifier Module. It support Bluetooth/U-disk/TF card audio input. Built-in 3W amplifier function, so user can connect speakers directly. Support select music and adjust volume.

2.Feature:

1>.Built-in 3W amplifier

2>.Support DC 5V input

3>.Industrial design stable and efficient

4>.Support BLE/SPP data transmission

5>.MP3 15meter lossless data transmission

6>.Support UART

7>.Support button adjust control

8>.Support U-disk(Max 128G)

9>.Support TF card(Max 128G)

3.Parameter:

1>.Model:BT-201

2>.Work voltage:DC 3.3V-5V

3>.Quiescent current:20mA

4>.Support file format:MP3/WAV/WMA/FLAC/AAC/APE

5>.UART interface:TTL level

6>.Baud rate:Adjustable

7>.Output power:4ohm 3W

8>.Operating Temperature:-20℃~85℃

9>.Operating Humidity:5%~95%RH

10>.Module Size:60*40*8mm

4.Button description:

1>.PREV/V-: Short press to select previous music.Long press to decrease volume.

2>.NEXT/V+: Short press to select next music.Long press to increase volume.

3>.MODE: Switch audio input type from Bluetooth,U-disk,TF card.

4>.PP: Play or Pause.

5.Function:

1>.Automatically generate Bluetooth MAC address.

2>.Support MP3/WAV/WMA/FLAC/AAC/APE file format decoding.

3>.Maximum support 128G U-disk and TF card.

4>.Support breakpoint memory and play memory.

5>.Support Bluetooth audio input.

6>.Support play/pause,switch previous/next music.

7>.Support phone call function.User can set cancel call.

8>.Support Answer/Hang up/Call back/Refuse for phone call.

9>.Support Bluetooth 5.0.

10>.Support HFP/A2DP/AVRCP/HSP/GAVDP/IOP/SPP/BLE.

11>.Maximum communication distance about 15meter.

12>.Frequency range 2.4GHz~2.480GHz.Class2 4dbM.

6.UART description:

1>.Baud rate:115200bps(User can set by command)

2>.Data bit:8bit

3>.Stop bit:1bit

4>.Check Digit:None

5>.Control flow:None

6>.Control command format: AT+<CMD>[<param>]rn

7>.Return data format: <IND>[<param>]rn

8>.AT+:The start of a control command.

9>.<CMD>:Specific control command.

10>.[<param>]:The parameter of CMD if need.

11>.rn:Enter and Wrap.

12>.<IND>:The start of return data.