Bluetooth

To build any of the Bluetooth samples, follow the instructions below:

$ make -C samples/bluetooth/<app>

Host Bluetooth controller is connected to the second QEMU serial line through a Unix socket (QEMU option -serial unix:/tmp/bt-server-bredr). This option is already added to Qemu through QEMU_EXTRA_FLAGS in Makefile.

On the host side BlueZ allows to “connect” Bluetooth controller through a so-called user channel. Use the btproxy tool for that:

Note that before calling btproxy make sure that Bluetooth controller is down.

$ sudo tools/btproxy -u
Listening on /tmp/bt-server-bredr

Running the application in Qemu will connect the second serial line to bt-server-bredr Unix socket. When Bluetooth (CONFIG_BLUETOOTH) and Bluetooth HCI UART driver (CONFIG_BLUETOOTH_H4) are enabled, the Bluetooth driver registers with the system.

From now on Bluetooth may be used by the application. To run applications in the Qemu emulation environment, type:

$ make run

• Bluetooth: Beacon
• Bluetooth: Central
• Bluetooth: Central / Heart-rate Monitor
• Bluetooth: Eddystone
• Bluetooth: Handsfree
• Bluetooth: HCI UART
• Bluetooth: HCI USB
• Bluetooth: IPSP Sample
• Bluetooth: Peripheral
• Bluetooth: Peripheral CSC
• Bluetooth: Peripheral DIS
• Bluetooth: Peripheral ESP
• Bluetooth: Peripheral HIDs
• Bluetooth: Peripheral HR
• Bluetooth: Peripheral SC-only