hciconfig -a
Many JQ-BT adapters share the 2.4 GHz band with Wi-Fi. jq-bt bluetooth driver
If you are running an older OS, the device may not install automatically. hciconfig -a
sudo hciattach /dev/ttyS0 bcsp 115200
The JQ-BT module can be driven as a standard HCI UART device using the hci_uart driver. Many JQ-BT adapters share the 2
Driver stack:
Application → BlueZ (libbluetooth) → HCI Socket → hci_uart.ko → UART driver → JQ-BT hardware
Kernel modules involved: