Android手机从蓝牙切换到BLE后无法连接到Raspberry Pi
Android手机从蓝牙切换到BLE后无法连接到Raspberry Pi
提问于 2020-02-11 23:58:28
我们已经在多个Android设备上尝试过了。为了支持iOS，我们正在努力升级我们的系统，使之与BLE一起工作，而不是BT。
下面是一个场景：
在Raspberry PI上运行bleno，与Android手机连接到service
- Connect ->成功
- 重新引导(硬) Raspberry PI，并启用蓝牙
- 并与Android手机配对到Android电话
H 111重新引导(hard) Raspberry PI中的BT
- 未配对设备，禁用蓝牙服务并使用Android手机运行bleno
- Connect以使BLE ->连接失败(BluetoothGatt status=19)
H 214G 215
我们试着重新设置蓝牙缓存( also )，并且通过编程(How to Programmatically Clear Bluetooth Cache using GattServer)重新启动手机也没有工作，然而，在工厂重新设置了我们能够再次连接的手机之后。
以下是在BLE连接前后Raspberry PI上的sudo btmon输出：
在(成功)之前：
> HCI Event: LE Meta Event (0x3e) plen 19 [hci0] 7.416417
LE Connection Complete (0x01)
Status: Success (0x00)
Handle: 64
Role: Slave (0x01)
Peer address type: Random (0x01)
Peer address: 6D:B3:5A:EA:CB:50 (Resolvable)
Connection interval: 48.75 msec (0x0027)
Connection latency: 0.00 msec (0x0000)
Supervision timeout: 5000 msec (0x01f4)
Master clock accuracy: 0x01
@ MGMT Event: Device Connected (0x000b) plen 13 {0x0002} [hci0] 7.416643
LE Address: 6D:B3:5A:EA:CB:50 (Resolvable)
Flags: 0x00000000
Data length: 0
< HCI Command: LE Read Remote Used Features (0x08|0x0016) plen 2 [hci0] 7.434359
Handle: 64
> HCI Event: Command Status (0x0f) plen 4 [hci0] 7.434958
LE Read Remote Used Features (0x08|0x0016) ncmd 1
Status: Success (0x00)
< HCI Command: LE Set Scan Enable (0x08|0x000c) plen 2 [hci0] 7.435064
Scanning: Disabled (0x00)
Filter duplicates: Disabled (0x00)
> HCI Event: Command Complete (0x0e) plen 4 [hci0] 7.437506
LE Set Scan Enable (0x08|0x000c) ncmd 1
Status: Success (0x00)
< HCI Command: LE Set Scan Parameters (0x08|0x000b) plen 7 [hci0] 7.437630
Type: Passive (0x00)
Interval: 60.000 msec (0x0060)
Window: 30.000 msec (0x0030)
Own address type: Public (0x00)
Filter policy: Ignore not in white list (0x01)
> HCI Event: Command Complete (0x0e) plen 4 [hci0] 7.438086
LE Set Scan Parameters (0x08|0x000b) ncmd 1
Status: Success (0x00)
< HCI Command: LE Set Scan Enable (0x08|0x000c) plen 2 [hci0] 7.438189
Scanning: Enabled (0x01)
Filter duplicates: Enabled (0x01)
> HCI Event: Command Complete (0x0e) plen 4 [hci0] 7.438938
LE Set Scan Enable (0x08|0x000c) ncmd 1
Status: Success (0x00)
> ACL Data RX: Handle 64 flags 0x02 dlen 11 [hci0] 7.610374
ATT: Read By Group Type Request (0x10) len 6
Handle range: 0x0001-0xffff
Attribute group type: Primary Service (0x2800)
> HCI Event: LE Meta Event (0x3e) plen 10 [hci0] 8.007841
LE Connection Update Complete (0x03)
Status: Success (0x00)
Handle: 64
Connection interval: 7.50 msec (0x0006)
Connection latency: 0.00 msec (0x0000)
Supervision timeout: 5000 msec (0x01f4)
> HCI Event: LE Meta Event (0x3e) plen 12 [hci0] 8.022370
LE Read Remote Used Features (0x04)
Status: Success (0x00)
Handle: 64
Features: 0x1d 0x00 0x00 0x00 0x00 0x00 0x00 0x00
LE Encryption
Extended Reject Indication
Slave-initiated Features Exchange
LE Ping
< ACL Data TX: Handle 64 flags 0x00 dlen 16 [hci0] 8.022557
LE L2CAP: Connection Parameter Update Request (0x12) ident 1 len 8
Min interval: 40
Max interval: 56
Slave latency: 0
Timeout multiplier: 500
> ACL Data RX: Handle 64 flags 0x02 dlen 10 [hci0] 8.037404
LE L2CAP: Connection Parameter Update Response (0x13) ident 1 len 2
Result: Connection Parameters accepted (0x0000)
< ACL Data TX: Handle 64 flags 0x00 dlen 18 [hci0] 8.056423
ATT: Read By Group Type Response (0x11) len 13
Attribute data length: 6
Attribute group list: 2 entries
Handle range: 0x0001-0x0005
UUID: Generic Access Profile (0x1800)
Handle range: 0x0006-0x0009
UUID: Generic Attribute Profile (0x1801)
> ACL Data RX: Handle 64 flags 0x02 dlen 11 [hci0] 8.067455
ATT: Read By Group Type Request (0x10) len 6
Handle range: 0x000a-0xffff
Attribute group type: Primary Service (0x2800)
> HCI Event: Number of Completed Packets (0x13) plen 5 [hci0] 8.068874
Num handles: 1
Handle: 64
Count: 2
< ACL Data TX: Handle 64 flags 0x00 dlen 26 [hci0] 8.093368
ATT: Read By Group Type Response (0x11) len 21
Attribute data length: 20
Attribute group list: 1 entry
Handle range: 0x000a-0x0014
UUID: Vendor specific (ffffffff-ffff-ffff-ffff-fffffffffff0)
> ACL Data RX: Handle 64 flags 0x02 dlen 11 [hci0] 8.104908
ATT: Read By Group Type Request (0x10) len 6
Handle range: 0x0015-0xffff
Attribute group type: Primary Service (0x2800)
< ACL Data TX: Handle 64 flags 0x00 dlen 9 [hci0] 8.126027
ATT: Error Response (0x01) len 4
Read By Group Type Request (0x10)
Handle: 0x0015
Error: Attribute Not Found (0x0a)
> ACL Data RX: Handle 64 flags 0x02 dlen 11 [hci0] 8.142444
ATT: Read By Type Request (0x08) len 6
Handle range: 0x0001-0x0005
Attribute type: Include (0x2802)
> HCI Event: Number of Completed Packets (0x13) plen 5 [hci0] 8.143707
Num handles: 1
Handle: 64
Count: 2
< ACL Data TX: Handle 64 flags 0x00 dlen 9 [hci0] 8.147126
ATT: Error Response (0x01) len 4
Read By Type Request (0x08)
Handle: 0x0001
Error: Attribute Not Found (0x0a)
> ACL Data RX: Handle 64 flags 0x02 dlen 11 [hci0] 8.157415
ATT: Read By Type Request (0x08) len 6
Handle range: 0x0001-0x0005
Attribute type: Characteristic (0x2803)
< ACL Data TX: Handle 64 flags 0x00 dlen 20 [hci0] 8.160994
ATT: Read By Type Response (0x09) len 15
Attribute data length: 7
Attribute data list: 2 entries
Handle: 0x0002
Value: 020300002a
Handle: 0x0004
Value: 020500012a
> ACL Data RX: Handle 64 flags 0x02 dlen 11 [hci0] 8.172405
ATT: Read By Type Request (0x08) len 6
Handle range: 0x0005-0x0005
Attribute type: Characteristic (0x2803)
> HCI Event: Number of Completed Packets (0x13) plen 5 [hci0] 8.172580
Num handles: 1
Handle: 64
Count: 2
< ACL Data TX: Handle 64 flags 0x00 dlen 9 [hci0] 8.175935
ATT: Error Response (0x01) len 4
Read By Type Request (0x08)
Handle: 0x0005
Error: Attribute Not Found (0x0a)
> ACL Data RX: Handle 64 flags 0x02 dlen 11 [hci0] 8.187369
ATT: Read By Type Request (0x08) len 6
Handle range: 0x0006-0x0009
Attribute type: Include (0x2802)
< ACL Data TX: Handle 64 flags 0x00 dlen 9 [hci0] 8.190371
ATT: Error Response (0x01) len 4
Read By Type Request (0x08)
Handle: 0x0006
Error: Attribute Not Found (0x0a)
> ACL Data RX: Handle 64 flags 0x02 dlen 11 [hci0] 8.202431
ATT: Read By Type Request (0x08) len 6
Handle range: 0x0006-0x0009
Attribute type: Characteristic (0x2803)
> HCI Event: Number of Completed Packets (0x13) plen 5 [hci0] 8.203385
Num handles: 1
Handle: 64
Count: 2
< ACL Data TX: Handle 64 flags 0x00 dlen 13 [hci0] 8.206600
ATT: Read By Type Response (0x09) len 8
Attribute data length: 7
Attribute data list: 1 entry
Handle: 0x0007
Value: 200800052a
> ACL Data RX: Handle 64 flags 0x02 dlen 11 [hci0] 8.217417
ATT: Read By Type Request (0x08) len 6
Handle range: 0x0008-0x0009
Attribute type: Characteristic (0x2803)
< ACL Data TX: Handle 64 flags 0x00 dlen 9 [hci0] 8.220542
ATT: Error Response (0x01) len 4
Read By Type Request (0x08)
Handle: 0x0008
Error: Attribute Not Found (0x0a)
> ACL Data RX: Handle 64 flags 0x02 dlen 9 [hci0] 8.232412
ATT: Find Information Request (0x04) len 4
Handle range: 0x0009-0x0009
> HCI Event: Number of Completed Packets (0x13) plen 5 [hci0] 8.233326
Num handles: 1
Handle: 64
Count: 2
< ACL Data TX: Handle 64 flags 0x00 dlen 10 [hci0] 8.236097
ATT: Find Information Response (0x05) len 5
Format: UUID-16 (0x01)
Handle: 0x0009
UUID: Client Characteristic Configuration (0x2902)
> ACL Data RX: Handle 64 flags 0x02 dlen 11 [hci0] 8.254911
ATT: Read By Type Request (0x08) len 6
Handle range: 0x000a-0x0014
Attribute type: Include (0x2802)
< ACL Data TX: Handle 64 flags 0x00 dlen 9 [hci0] 8.257998
ATT: Error Response (0x01) len 4
Read By Type Request (0x08)
Handle: 0x000a
Error: Attribute Not Found (0x0a)
> ACL Data RX: Handle 64 flags 0x02 dlen 11 [hci0] 8.269937
ATT: Read By Type Request (0x08) len 6
Handle range: 0x000a-0x0014
Attribute type: Characteristic (0x2803)
> HCI Event: Number of Completed Packets (0x13) plen 5 [hci0] 8.270951
Num handles: 1
Handle: 64
Count: 2
< ACL Data TX: Handle 64 flags 0x00 dlen 27 [hci0] 8.274584
ATT: Read By Type Response (0x09) len 22
Attribute data length: 21
Attribute data list: 1 entry
Handle: 0x000b
Value: 0a0c0003003333333333333333333333333313
> ACL Data RX: Handle 64 flags 0x02 dlen 11 [hci0] 8.284914
ATT: Read By Type Request (0x08) len 6
Handle range: 0x000c-0x0014
Attribute type: Characteristic (0x2803)
< ACL Data TX: Handle 64 flags 0x00 dlen 27 [hci0] 8.288595
ATT: Read By Type Response (0x09) len 22
Attribute data length: 21
Attribute data list: 1 entry
Handle: 0x000e
Value: 080f0005003333333333333333333333333313
> ACL Data RX: Handle 64 flags 0x02 dlen 11 [hci0] 8.307421
ATT: Read By Type Request (0x08) len 6
Handle range: 0x000f-0x0014
Attribute type: Characteristic (0x2803)
> HCI Event: Number of Completed Packets (0x13) plen 5 [hci0] 8.308334
Num handles: 1
Handle: 64
Count: 2
< ACL Data TX: Handle 64 flags 0x00 dlen 27 [hci0] 8.311648
ATT: Read By Type Response (0x09) len 22
Attribute data length: 21
Attribute data list: 1 entry
Handle: 0x0011
Value: 10120007003333333333333333333333333313
> ACL Data RX: Handle 64 flags 0x02 dlen 11 [hci0] 8.322401
ATT: Read By Type Request (0x08) len 6
Handle range: 0x0012-0x0014
Attribute type: Characteristic (0x2803)
< ACL Data TX: Handle 64 flags 0x00 dlen 9 [hci0] 8.325415
ATT: Error Response (0x01) len 4
Read By Type Request (0x08)
Handle: 0x0012
Error: Attribute Not Found (0x0a)
> ACL Data RX: Handle 64 flags 0x02 dlen 9 [hci0] 8.337361
ATT: Find Information Request (0x04) len 4
Handle range: 0x000d-0x000d
> HCI Event: Number of Completed Packets (0x13) plen 5 [hci0] 8.338277
Num handles: 1
Handle: 64
Count: 2
< ACL Data TX: Handle 64 flags 0x00 dlen 10 [hci0] 8.341007
ATT: Find Information Response (0x05) len 5
Format: UUID-16 (0x01)
Handle: 0x000d
UUID: Characteristic User Description (0x2901)
> ACL Data RX: Handle 64 flags 0x02 dlen 9 [hci0] 8.352388
ATT: Find Information Request (0x04) len 4
Handle range: 0x0010-0x0010
< ACL Data TX: Handle 64 flags 0x00 dlen 10 [hci0] 8.355296
ATT: Find Information Response (0x05) len 5
Format: UUID-16 (0x01)
Handle: 0x0010
UUID: Characteristic User Description (0x2901)
> ACL Data RX: Handle 64 flags 0x02 dlen 9 [hci0] 8.367413
ATT: Find Information Request (0x04) len 4
Handle range: 0x0013-0x0014
> HCI Event: Number of Completed Packets (0x13) plen 5 [hci0] 8.368251
Num handles: 1
Handle: 64
Count: 2
< ACL Data TX: Handle 64 flags 0x00 dlen 14 [hci0] 8.371096
ATT: Find Information Response (0x05) len 9
Format: UUID-16 (0x01)
Handle: 0x0013
UUID: Client Characteristic Configuration (0x2902)
Handle: 0x0014
UUID: Characteristic User Description (0x2901)
> ACL Data RX: Handle 64 flags 0x02 dlen 7 [hci0] 8.382770
ATT: Exchange MTU Request (0x02) len 2
Client RX MTU: 255
< ACL Data TX: Handle 64 flags 0x00 dlen 7 [hci0] 8.385864
ATT: Exchange MTU Response (0x03) len 2
Server RX MTU: 255
> HCI Event: Number of Completed Packets (0x13) plen 5 [hci0] 8.397320
Num handles: 1
Handle: 64
Count: 2
> HCI Event: LE Meta Event (0x3e) plen 10 [hci0] 8.465343
LE Connection Update Complete (0x03)
Status: Success (0x00)
Handle: 64
Connection interval: 60.00 msec (0x0030)
Connection latency: 0.00 msec (0x0000)
Supervision timeout: 5000 msec (0x01f4)
> ACL Data RX: Handle 64 flags 0x02 dlen 9 [hci0] 8.644851
ATT: Write Request (0x12) len 4
Handle: 0x0013
Data: 0100
< ACL Data TX: Handle 64 flags 0x00 dlen 5 [hci0] 8.648926
ATT: Write Response (0x13) len 0
> ACL Data RX: Handle 64 flags 0x02 dlen 9 [hci0] 8.764880
ATT: Write Request (0x12) len 4
Handle: 0x0013
Data: 0000
< ACL Data TX: Handle 64 flags 0x00 dlen 5 [hci0] 8.768936
ATT: Write Response (0x13) len 0
> ACL Data RX: Handle 64 flags 0x02 dlen 9 [hci0] 8.884933
ATT: Write Request (0x12) len 4
Handle: 0x0013
Data: 0100
> HCI Event: Number of Completed Packets (0x13) plen 5 [hci0] 8.886011
Num handles: 1
Handle: 64
Count: 2
< ACL Data TX: Handle 64 flags 0x00 dlen 5 [hci0] 8.890188
ATT: Write Response (0x13) len 0
> ACL Data RX: Handle 64 flags 0x02 dlen 11 [hci0] 9.004875
ATT: Write Request (0x12) len 6
Handle: 0x000c
Data: 317c6964
< ACL Data TX: Handle 64 flags 0x00 dlen 5 [hci0] 9.033321
ATT: Write Response (0x13) len 0
> ACL Data RX: Handle 64 flags 0x02 dlen 24 [hci0] 9.125075
> HCI Event: Number of Completed Packets (0x13) plen 5 [hci0] 9.126033
Num handles: 1
Handle: 64
Count: 2
> ACL Data RX: Handle 64 flags 0x01 dlen 24 [hci0] 9.126060
> ACL Data RX: Handle 64 flags 0x01 dlen 23 [hci0] 9.127135
ATT: Write Request (0x12) len 66
Handle: 0x000f
Data: 307c307c7b22446576696365416363657373546f6b656e223a2232363465663937302d346362362d313165612d383230612d623832376562316564313439227d
< ACL Data TX: Handle 64 flags 0x00 dlen 5 [hci0] 9.165770
ATT: Write Response (0x13) len 0
> HCI Event: Number of Completed Packets (0x13) plen 5 [hci0] 9.432895
Num handles: 1
Handle: 64
Count: 1
...在(失败)之后：
> HCI Event: LE Meta Event (0x3e) plen 19 [hci0] 5.509223
LE Connection Complete (0x01)
Status: Success (0x00)
Handle: 64
Role: Slave (0x01)
Peer address type: Random (0x01)
Peer address: 48:3F:15:CC:76:5F (Resolvable)
Connection interval: 48.75 msec (0x0027)
Connection latency: 0.00 msec (0x0000)
Supervision timeout: 5000 msec (0x01f4)
Master clock accuracy: 0x01
@ MGMT Event: Device Connected (0x000b) plen 13 {0x0002} [hci0] 5.509416
LE Address: 7C:03:5E:9F:D1:A7 (OUI 7C-03-5E)
Flags: 0x00000000
Data length: 0
< HCI Command: LE Read Remote Used Features (0x08|0x0016) plen 2 [hci0] 5.514306
Handle: 64
> HCI Event: Command Status (0x0f) plen 4 [hci0] 5.515424
LE Read Remote Used Features (0x08|0x0016) ncmd 1
Status: Success (0x00)
< HCI Command: LE Set Scan Enable (0x08|0x000c) plen 2 [hci0] 5.515546
Scanning: Disabled (0x00)
Filter duplicates: Disabled (0x00)
> HCI Event: Command Complete (0x0e) plen 4 [hci0] 5.517443
LE Set Scan Enable (0x08|0x000c) ncmd 1
Status: Success (0x00)
< HCI Command: LE Set Scan Parameters (0x08|0x000b) plen 7 [hci0] 5.517576
Type: Passive (0x00)
Interval: 60.000 msec (0x0060)
Window: 30.000 msec (0x0030)
Own address type: Public (0x00)
Filter policy: Ignore not in white list (0x01)
> HCI Event: Command Complete (0x0e) plen 4 [hci0] 5.518191
LE Set Scan Parameters (0x08|0x000b) ncmd 1
Status: Success (0x00)
< HCI Command: LE Set Scan Enable (0x08|0x000c) plen 2 [hci0] 5.518314
Scanning: Enabled (0x01)
Filter duplicates: Enabled (0x01)
> HCI Event: Command Complete (0x0e) plen 4 [hci0] 5.519025
LE Set Scan Enable (0x08|0x000c) ncmd 1
Status: Success (0x00)
< HCI Command: LE Set Scan Enable (0x08|0x000c) plen 2 [hci0] 5.545371
Scanning: Disabled (0x00)
Filter duplicates: Disabled (0x00)
> HCI Event: Command Complete (0x0e) plen 4 [hci0] 5.548676
LE Set Scan Enable (0x08|0x000c) ncmd 1
Status: Success (0x00)
< HCI Command: LE Add Device To White List (0x08|0x0011) plen 7 [hci0] 5.548813
Address type: Random (0x01)
Address: 48:3F:15:CC:76:5F (Resolvable)
> HCI Event: Command Complete (0x0e) plen 4 [hci0] 5.550213
LE Add Device To White List (0x08|0x0011) ncmd 1
Status: Success (0x00)
< HCI Command: LE Set Scan Parameters (0x08|0x000b) plen 7 [hci0] 5.550348
Type: Passive (0x00)
Interval: 60.000 msec (0x0060)
Window: 30.000 msec (0x0030)
Own address type: Public (0x00)
Filter policy: Ignore not in white list (0x01)
> HCI Event: Command Complete (0x0e) plen 4 [hci0] 5.551350
LE Set Scan Parameters (0x08|0x000b) ncmd 1
Status: Success (0x00)
< HCI Command: LE Set Scan Enable (0x08|0x000c) plen 2 [hci0] 5.551468
Scanning: Enabled (0x01)
Filter duplicates: Enabled (0x01)
> HCI Event: Command Complete (0x0e) plen 4 [hci0] 5.552194
LE Set Scan Enable (0x08|0x000c) ncmd 1
Status: Success (0x00)
> ACL Data RX: Handle 64 flags 0x02 dlen 11 [hci0] 5.751468
ATT: Read By Group Type Request (0x10) len 6
Handle range: 0x0001-0xffff
Attribute group type: Primary Service (0x2800)
> HCI Event: LE Meta Event (0x3e) plen 10 [hci0] 6.145226
LE Connection Update Complete (0x03)
Status: Success (0x00)
Handle: 64
Connection interval: 7.50 msec (0x0006)
Connection latency: 0.00 msec (0x0000)
Supervision timeout: 5000 msec (0x01f4)
> HCI Event: LE Meta Event (0x3e) plen 12 [hci0] 6.159776
LE Read Remote Used Features (0x04)
Status: Success (0x00)
Handle: 64
Features: 0x1d 0x00 0x00 0x00 0x00 0x00 0x00 0x00
LE Encryption
Extended Reject Indication
Slave-initiated Features Exchange
LE Ping
< ACL Data TX: Handle 64 flags 0x00 dlen 16 [hci0] 6.159947
LE L2CAP: Connection Parameter Update Request (0x12) ident 1 len 8
Min interval: 40
Max interval: 56
Slave latency: 0
Timeout multiplier: 500
> ACL Data RX: Handle 64 flags 0x02 dlen 10 [hci0] 6.174753
LE L2CAP: Connection Parameter Update Response (0x13) ident 1 len 2
Result: Connection Parameters accepted (0x0000)
> HCI Event: Number of Completed Packets (0x13) plen 5 [hci0] 6.414272
Num handles: 1
Handle: 64
Count: 1
< HCI Command: Disconnect (0x01|0x0006) plen 3 [hci0] 10.174344
Handle: 64
Reason: Remote User Terminated Connection (0x13)
> HCI Event: Command Status (0x0f) plen 4 [hci0] 10.175510
Disconnect (0x01|0x0006) ncmd 1
Status: Success (0x00)
> HCI Event: Disconnect Complete (0x05) plen 4 [hci0] 15.169553
Status: Success (0x00)
Handle: 64
Reason: LMP Response Timeout / LL Response Timeout (0x22)
@ MGMT Event: Device Disconnected (0x000c) plen 8 {0x0002} [hci0] 15.169664
LE Address: 7C:03:5E:9F:D1:A7 (OUI 7C-03-5E)
Reason: Unspecified (0x00)debian版本: 9.3
Raspbian /Linux 9(拉伸)
4.9.59+ #1047太阳10月29日11:47格林尼治时间2017年10:10 armv6l GNU/Linux
注意:如果我们使用：https://scribles.net/changing-a-bluetooth-device-address-on-raspberry-pi/更改Raspberry PI的蓝牙mac地址，在运行bleno之前，Android可以再次连接到BLE。
回答 1
Stack Overflow用户
发布于 2020-02-12 04:33:08
运行在Raspberry上的蓝牙服务(BlueZ)是经过蓝牙认证的Linux的官方蓝牙堆栈，除非您有充分的理由不使用它，否则应该使用它。然而，Bleno更像是一个黑客，完全独立的蓝牙堆栈应该只用于测试目的和类似的用途，因为它还没有经过认证(而且可能还有很长的路要走)。在bleno中，配对/结合也不能真正正确地工作。似乎bleno没有响应接收到的“由Group请求读取”，我也不知道为什么，然后它发送一个断开命令。
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/60183593
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