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+[]rn
7>.Return data format: []rn
8>.AT+:The start of a control command.
9>.:Specific control command.
10>.[]:The parameter of CMD if need.
11>.rn:Enter and Wrap.
12>.:The start of return data.
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