Custom BT401 Bluetooth module serial port transparent BLE MP3 AT audio IIS output I2s supports voice broadcasting

The version of the digital interface refers to the digital audio output of IIS, which is divided into host and slave versions. For specific information, please download the complete information to view

BT401 module introduction

1. Support Bluetooth audio, BLE data transmission, U disk play, TF card play, SPI FLASH. Support MP3, WAV, FLAC, APE format decoding

2. Serial port AT command control. Support to modify the baud rate, modify the Bluetooth name, specify the device to play, and transmit data through the mobile phone

3. It supports BLE and SPP dual-mode data transmission, and can also play Bluetooth audio without conflict. The module supports i2s as host or slave

4. It supports Bluetooth call, multi button control, previous song, next song, playback pause, volume adjustment and other simple functions.

5. Support to obtain the full file name for playback, specify the path for playback through the serial port, and play in cycles or single time

6. Support 128KBS recording function. Recording to TF card or USB flash disk, recording deletion and playback, etc

7. Rich usage materials video tutorial, mobile phone transparent video tutorial, serial port AT video tutorial

8. Ultra low cost, standard firmware module.

9. It is easy to interface with existing APPs or develop WeChat applets. Mobile phone control

10. The functional firmware is developed by ourselves, which is very flexible. Even if there is an unsatisfied demand, it can also be developed through communication