raspberry Pi 连接蓝牙(小爱同学)

参数	value
raspberry pi MOdel	4B，4Gb
bluetooth MOdel	小爱同学
writeTime	2023年 2月11日 下午13：14分
raspberry System Model	Linux raspberrypi 5.15.61-v8+ #1579 SMP PREEMPT Fri Aug 26 11:16:44 BST 2022 aarch64 GNU/Linux

连接蓝牙

请在小爱同学app上确认蓝牙可以被发现。

打开命令行

Ctrl+Alt+T

切换到蓝牙

输入：bluetoothctl

打开代理

打开代理：agent on

扫描蓝牙

输入命令扫描蓝牙： scan on

找到对应的蓝牙之后进行配对

配对 ：pair XX：XX：XX

连接

连接：connection XX：XX：XX：XX

连接上之后

选择信任蓝牙：trust XX：XX：XX

连接上蓝牙没有声音

1. 确认蓝牙有电，并调整到一个合适的音量
2. 确认raspberry音量合适
3. 右键raspberry的音量图标，选择第三个Device Profiles，关闭或开始某一个进行音量的设置。

命令的解释

[bluetooth]# help
Menu main:
Available commands:
-------------------
advertise                                         Advertise Options Submenu
scan                                              Scan Options Submenu
gatt                                              Generic Attribute Submenu
list                                              List available controllers
show [ctrl]                                       Controller information
select <ctrl>                                     Select default controller
devices                                           List available devices
paired-devices                                    List paired devices
system-alias <name>                               Set controller alias
reset-alias                                       Reset controller alias
power <on/off>                                    Set controller power
pairable <on/off>                                 Set controller pairable mode
discoverable <on/off>                             Set controller discoverable mode
discoverable-timeout [value]                      Set discoverable timeout
agent <on/off/capability>                         Enable/disable agent with given capability
default-agent                                     Set agent as the default one
advertise <on/off/type>                           Enable/disable advertising with given type
set-alias <alias>                                 Set device alias
scan <on/off>                                     Scan for devices
info [dev]                                        Device information
pair [dev]                                        Pair with device
cancel-pairing [dev]                              Cancel pairing with device
trust [dev]                                       Trust device
untrust [dev]                                     Untrust device
block [dev]                                       Block device
unblock [dev]                                     Unblock device
remove <dev>                                      Remove device
connect <dev>                                     Connect device
disconnect [dev]                                  Disconnect device
menu <name>                                       Select submenu
version                                           Display version
quit                                              Quit program
exit                                              Quit program
help                                              Display help about this program
export                                            Print environment variables