初始化蓝牙
sh /etc/enable_bt.sh
查看蓝牙,获取设备编号 hci0
hciconfig -a
hci0: Type: BR/EDR Bus: UART
BD Address: 20:70:02:A0:00:00 ACL MTU: 1021:8 SCO MTU: 64:1
DOWN
RX bytes:604 acl:0 sco:0 events:30 errors:0
TX bytes:398 acl:0 sco:0 commands:30 errors:0
Features: 0xbf 0xfe 0xcf 0xfe 0xdb 0xff 0x7b 0x87
Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3
Link policy: RSWITCH SNIFF
Link mode: SLAVE ACCEPT
开启蓝牙
hciconfig hci0 up
扫描蓝牙
hcitool scan
Scanning ...
E0:19:1D:A4:62:64 HUAWEI MT7-TL00
连接手机
agent -a hci0 0000 E0:19:1D:A4:62:64
Can't find adapter hci0
Launch helper exited with unknown return code 1
使设备可见可连接
hciconfig hci0 piscan
BlueZ bug
0:设备蓝牙无法连接手机/电脑
hcitool scan
Scanning ...
E0:19:1D:A4:62:64 HUAWEI MT7-TL00
agent -a hci0 0000 20:16:D8:FE:58:72
Can't find adapter hci0
Launch helper exited with unknown return code 1
agent -a hci0 0000 E0:19:1D:A4:62:64
Can't find adapter hci0
Launch helper exited with unknown return code 1
hciconfig -a
hci0: Type: BR/EDR Bus: UART
BD Address: 20:70:02:A0:00:00 ACL MTU: 1021:8 SCO MTU: 64:1
UP RUNNING
RX bytes:9488 acl:0 sco:0 events:163 errors:0
TX bytes:1475 acl:0 sco:0 commands:114 errors:0
Features: 0xbf 0xfe 0xcf 0xfe 0xdb 0xff 0x7b 0x87
Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3
Link policy: RSWITCH SNIFF
Link mode: SLAVE ACCEPT
Name: 'BCM20702A1 Generic UART Class 1 @ 26 MHz'
Class: 0x000000
Service Classes: Unspecified
Device Class: Miscellaneous,
HCI Version: 4.0 (0x6) Revision: 0x1000
LMP Version: 4.0 (0x6) Subversion: 0x220e
Manufacturer: Broadcom Corporation (15)
1.手机不能连接设备蓝牙 输入配对密钥0000或1234，连接不上
agent 0000
Can't get default adapter
Launch helper exited with unknown return code 1
############################################################# pair with phone and BT, test OK
source /etc/enable_bt.sh
bluetoothd --udev
hciconfig hci0 piscan
agent 0000 &
sdptool add OPUSH
############################################################# phone->device test FAIL! 添加本机 OBEX Object Push 服务
sdptool add OPUSH
查询开发板上的 OBEX Object 服务 channel 号
sdptool browse local
等待接收文件
obex_test -b local <chanel 号>
############################################################# device->phone //test OK
查看发送chanel
sdptool browse E0:19:1D:A4:62:64
Service Name: OBEX Object Push
Service RecHandle: 0x1000c
Service Class ID List:
"OBEX Object Push" (0x1105)
Protocol Descriptor List:
"L2CAP" (0x0100)
"RFCOMM" (0x0003)
Channel: 12
"OBEX" (0x0008)
Profile Descriptor List:
"OBEX Object Push" (0x1105)
Version: 0x0100
获取OBEX Object Push chanel : 12
发送文件
obex_test -b E0:19:1D:A4:62:64 12
Using Bluetooth RFCOMM transport
OBEX Interactive test client/server.
c //选择连接
Connect OK!
Version: 0x10. Flags: 0x00
x //选择发送
PUSH filename> /opt/test1.txt
name=/opt/test1.txt, size=12
Going to send /opt/test1.txt(test1.txt), 12 bytes
Filling stream!
Filling stream!
PUT successful //发送成功