boards

Mode

Host: used to search for slave devices and cannot be searched by other devices. (Bluetooth module with white dot)

Slave machine: The device used to be searched, and cannot actively search for other devices.

After the master and slave are connected, it is used as a serial port line. At this time, the master and slave are not distinguished, which is the transparent transmission mode.

[This module can be set as a master or a slave. The master can pair and communicate with the slave. There cannot be communication between slaves and slaves or between the master and the host. The slave can communicate with computers, mobile phones, etc. via Bluetooth. The default when purchasing is slave]

BT Types

BT5.0

Bluetooth Mesh

audio bluetooth

audio + BLE

audio-dat + BLE-dat == jielie-dat - JL-AF24-dat - bluetooth-dat

phone APPs

  • BlueSPP
  • nRF connect

APPs

Chip

working mode

master and slave mode

master connect to multiple slave mode

slave connect to multiple master mode

master / slave unity

BLE 5

repo

https://github.com/Edragon/BT-BK

https://github.com/Edragon/BT-SDK

https://github.com/Edragon/BT-audio

3rd boards

ref