樹莓派官方發(fā)布的最新的操作系統(tǒng)中归斤，都繼承了BlueZ藍牙模組庫偎痛，所以只要樹莓派上有藍牙適配器(不管是自帶的還是外接的)司训，都可以使用藍牙功能构捡。
其他操作系統(tǒng)我們這里不討論，因為例如Windows 10 IOT和Android things他們封裝的藍牙模組庫的用法可能會完全不同壳猜，所以我們討論起來就天長地久白頭偕老了~
BlueZ
我們就先看看在樹莓派的Linux下的終端(命令行)里怎么操作藍牙模組庫BlueZ勾徽。
- 獲取BlueZ版本
bluetoothd -v - 查看BlueZ運行狀況
systemctl status bluetooth - 查看藍牙適配器信息
hciconfig -a - 啟動藍牙服務
systemctl start bluetooth - 關閉藍牙服務
systemctl stop bluetooth - 啟用藍牙服務
systemctl enable bluetooth - 禁用藍牙服務
systemctl disable bluetooth - 進入藍牙控制臺
bluetoothctl - 在藍牙控制臺列出藍牙適配器
list - 在藍牙控制臺顯示藍牙適配器的信息
show [ctrl] - 在藍牙控制臺設置默認的藍牙適配器
select <ctrl> - 在藍牙控制臺列出可連接的藍牙設備
devices - 在藍牙控制臺列出已配對的藍牙設備
paired-devices - 在藍牙控制臺設置藍牙適配器電源
power <on/off> - 在藍牙控制臺設置藍牙適配器是否可配對
pairable <on/off> - 在藍牙控制臺設置藍牙適配器是否可被法線
discoverable <on/off> - 在藍牙控制臺設置藍牙適配器是否可被法線
discoverable <on/off> - 在藍牙控制臺啟動藍牙設備掃描
scan on - 在藍牙控制臺停止藍牙設備掃描
scan off
systemctl
systemctl [OPTIONS...] {COMMAND} ...
Query or send control commands to the systemd manager.
-h --help Show this help
--version Show package version
--system Connect to system manager
--user Connect to user service manager
-H --host=[USER@]HOST
Operate on remote host
-M --machine=CONTAINER
Operate on local container
-t --type=TYPE List only units of a particular type
--state=STATE List only units with particular LOAD or SUB or ACTIVE stat
-p --property=NAME Show only properties by this name
-a --all Show all loaded units/properties, including dead/empty
ones. To list all units installed on the system, use
the 'list-unit-files' command instead.
-l --full Don't ellipsize unit names on output
-r --recursive Show unit list of host and local containers
--reverse Show reverse dependencies with 'list-dependencies'
--job-mode=MODE Specify how to deal with already queued jobs, when
queueing a new job
--show-types When showing sockets, explicitly show their type
-i --ignore-inhibitors
When shutting down or sleeping, ignore inhibitors
--kill-who=WHO Who to send signal to
-s --signal=SIGNAL Which signal to send
-q --quiet Suppress output
--no-block Do not wait until operation finished
--no-wall Don't send wall message before halt/power-off/reboot
--no-reload When enabling/disabling unit files, don't reload daemon
configuration
--no-legend Do not print a legend (column headers and hints)
--no-pager Do not pipe output into a pager
--no-ask-password
Do not ask for system passwords
--global Enable/disable unit files globally
--runtime Enable unit files only temporarily until next reboot
-f --force When enabling unit files, override existing symlinks
When shutting down, execute action immediately
--preset-mode= Specifies whether fully apply presets, or only enable,
or only disable
--root=PATH Enable unit files in the specified root directory
-n --lines=INTEGER Number of journal entries to show
-o --output=STRING Change journal output mode (short, short-monotonic,
verbose, export, json, json-pretty, json-sse, cat)
--plain Print unit dependencies as a list instead of a tree
Unit Commands:
list-units [PATTERN...] List loaded units
list-sockets [PATTERN...] List loaded sockets ordered by address
list-timers [PATTERN...] List loaded timers ordered by next elapse
start NAME... Start (activate) one or more units
stop NAME... Stop (deactivate) one or more units
reload NAME... Reload one or more units
restart NAME... Start or restart one or more units
try-restart NAME... Restart one or more units if active
reload-or-restart NAME... Reload one or more units if possible,
otherwise start or restart
reload-or-try-restart NAME... Reload one or more units if possible,
otherwise restart if active
isolate NAME Start one unit and stop all others
kill NAME... Send signal to processes of a unit
is-active PATTERN... Check whether units are active
is-failed PATTERN... Check whether units are failed
status [PATTERN...|PID...] Show runtime status of one or more units
show [PATTERN...|JOB...] Show properties of one or more
units/jobs or the manager
cat PATTERN... Show files and drop-ins of one or more units
set-property NAME ASSIGNMENT... Sets one or more properties of a unit
help PATTERN...|PID... Show manual for one or more units
reset-failed [PATTERN...] Reset failed state for all, one, or more
units
list-dependencies [NAME] Recursively show units which are required
or wanted by this unit or by which this
unit is required or wanted
Unit File Commands:
list-unit-files [PATTERN...] List installed unit files
enable NAME... Enable one or more unit files
disable NAME... Disable one or more unit files
reenable NAME... Reenable one or more unit files
preset NAME... Enable/disable one or more unit files
based on preset configuration
preset-all Enable/disable all unit files based on
preset configuration
is-enabled NAME... Check whether unit files are enabled
mask NAME... Mask one or more units
unmask NAME... Unmask one or more units
link PATH... Link one or more units files into
the search path
get-default Get the name of the default target
set-default NAME Set the default target
Machine Commands:
list-machines [PATTERN...] List local containers and host
Job Commands:
list-jobs [PATTERN...] List jobs
cancel [JOB...] Cancel all, one, or more jobs
Snapshot Commands:
snapshot [NAME] Create a snapshot
delete NAME... Remove one or more snapshots
Environment Commands:
show-environment Dump environment
set-environment NAME=VALUE... Set one or more environment variables
unset-environment NAME... Unset one or more environment variables
import-environment NAME... Import all, one or more environment variables
Manager Lifecycle Commands:
daemon-reload Reload systemd manager configuration
daemon-reexec Reexecute systemd manager
System Commands:
is-system-running Check whether system is fully running
default Enter system default mode
rescue Enter system rescue mode
emergency Enter system emergency mode
halt Shut down and halt the system
poweroff Shut down and power-off the system
reboot [ARG] Shut down and reboot the system
kexec Shut down and reboot the system with kexec
exit Request user instance exit
switch-root ROOT [INIT] Change to a different root file system
suspend Suspend the system
hibernate Hibernate the system
hybrid-sleep Hibernate and suspend the system
bluetoothd
Usage:
bluetoothd [OPTION...]
Help Options:
-h, --help Show help options
Application Options:
-d, --debug=DEBUG Specify debug options to enable
-p, --plugin=NAME,.., Specify plugins to load
-P, --noplugin=NAME,... Specify plugins not to load
-C, --compat Provide deprecated command line interfaces
-E, --experimental Enable experimental interfaces
-n, --nodetach Run with logging in foreground
-v, --version Show version information and exit
hciconfig
hciconfig - HCI device configuration utility
Usage:
hciconfig
hciconfig [-a] hciX [command ...]
Commands:
up Open and initialize HCI device
down Close HCI device
reset Reset HCI device
rstat Reset statistic counters
auth Enable Authentication
noauth Disable Authentication
encrypt Enable Encryption
noencrypt Disable Encryption
piscan Enable Page and Inquiry scan
noscan Disable scan
iscan Enable Inquiry scan
pscan Enable Page scan
ptype [type] Get/Set default packet type
lm [mode] Get/Set default link mode
lp [policy] Get/Set default link policy
name [name] Get/Set local name
class [class] Get/Set class of device
voice [voice] Get/Set voice setting
iac [iac] Get/Set inquiry access code
inqtpl [level] Get/Set inquiry transmit power level
inqmode [mode] Get/Set inquiry mode
inqdata [data] Get/Set inquiry data
inqtype [type] Get/Set inquiry scan type
inqparms [win:int] Get/Set inquiry scan window and interval
pageparms [win:int] Get/Set page scan window and interval
pageto [to] Get/Set page timeout
afhmode [mode] Get/Set AFH mode
sspmode [mode] Get/Set Simple Pairing Mode
aclmtu <mtu:pkt> Set ACL MTU and number of packets
scomtu <mtu:pkt> Set SCO MTU and number of packets
delkey <bdaddr> Delete link key from the device
oobdata Get local OOB data
commands Display supported commands
features Display device features
version Display version information
revision Display revision information
block <bdaddr> Add a device to the blacklist
unblock <bdaddr> Remove a device from the blacklist
lerandaddr <bdaddr> Set LE Random Address
leadv [type] Enable LE advertising
0 - Connectable undirected advertising (default)
3 - Non connectable undirected advertising
noleadv Disable LE advertising
lestates Display the supported LE states
hcitool
hcitool - HCI Tool ver 5.23
Usage:
hcitool [options] <command> [command parameters]
Options:
--help Display help
-i dev HCI device
Commands:
dev Display local devices
inq Inquire remote devices
scan Scan for remote devices
name Get name from remote device
info Get information from remote device
spinq Start periodic inquiry
epinq Exit periodic inquiry
cmd Submit arbitrary HCI commands
con Display active connections
cc Create connection to remote device
dc Disconnect from remote device
sr Switch master/slave role
cpt Change connection packet type
rssi Display connection RSSI
lq Display link quality
tpl Display transmit power level
afh Display AFH channel map
lp Set/display link policy settings
lst Set/display link supervision timeout
auth Request authentication
enc Set connection encryption
key Change connection link key
clkoff Read clock offset
clock Read local or remote clock
lescan Start LE scan
lewladd Add device to LE White List
lewlrm Remove device from LE White List
lewlsz Read size of LE White List
lewlclr Clear LE White list
lecc Create a LE Connection
ledc Disconnect a LE Connection
lecup LE Connection Update
For more information on the usage of each command use:
hcitool <command> --help
hciattach
hciattach - HCI UART driver initialization utility
Usage:
hciattach [-n] [-p] [-b] [-r] [-t timeout] [-s initial_speed] <tty> <type | id> [speed] [flow|noflow] [bdaddr]
hciattach -l
bluetoothctl
Available commands:
list List available controllers
show [ctrl] Controller information
select <ctrl> Select default controller
devices List available devices
paired-devices List paired devices
power <on/off> Set controller power
pairable <on/off> Set controller pairable mode
discoverable <on/off> Set controller discoverable mode
agent <on/off/capability> Enable/disable agent with given capability
default-agent Set agent as the default one
scan <on/off> Scan for devices
info <dev> Device information
pair <dev> Pair 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
version Display version
quit Quit program
