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Jakeler / ble-serial

"RFCOMM for BLE" a UART over Bluetooth low energy (4+) bridge for Linux, Mac and Windows
https://blog.ja-ke.tech/tags/#bluetooth
MIT License
264 stars 37 forks source link

No received data #12

Closed coelner closed 3 years ago

coelner commented 3 years ago

backlog: https://github.com/Jakeler/UT61E-Toolkit/issues/10

 [18:04|coelner@localhost ~]$ ble-scan -d
Discovered device: 6b:9e:58:2d:35:39 -> None
Discovered device: a4:c1:38:02:b9:dd -> UT61E
Discovered device: 0c:f3:ee:31:20:17 -> None
Found 3 devices!

Device 6b:9e:58:2d:35:39 (random), RSSI=-63 dB
    03: Complete 16b Services = 0000fd6f-0000-1000-8000-00805f9b34fb
    16: 16b Service Data = 6ffd94fd335da2744bb764f79d35a2fb85195e08c6a4
Could not read device: Failed to connect to peripheral 6b:9e:58:2d:35:39, addr type: random

Device a4:c1:38:02:b9:dd (public), RSSI=-79 dB
    01: Flags = 06
    02: Incomplete 16b Services = 0000ffe0-0000-1000-8000-00805f9b34fb,0000fee7-0000-1000-8000-00805f9b34fb
    ff: Manufacturer = cf9888a0a4c13802b9dd
    09: Complete Local Name = UT61E
  Service: 00001800-0000-1000-8000-00805f9b34fb
    Characteristic: 00002a00-0000-1000-8000-00805f9b34fb READ NOTIFY 
    Characteristic: 00002a01-0000-1000-8000-00805f9b34fb READ 
    Characteristic: 00002a04-0000-1000-8000-00805f9b34fb READ 
  Service: 0000ffe0-0000-1000-8000-00805f9b34fb
    Characteristic: 0000ffe1-0000-1000-8000-00805f9b34fb WRITE NO RESPONSE NOTIFY 
    Characteristic: 0000ffe2-0000-1000-8000-00805f9b34fb WRITE NO RESPONSE NOTIFY 

Device 0c:f3:ee:31:20:17 (public), RSSI=-66 dB
  Service: 00001800-0000-1000-8000-00805f9b34fb
    Characteristic: 00002a00-0000-1000-8000-00805f9b34fb READ 
    Characteristic: 00002a01-0000-1000-8000-00805f9b34fb READ 
    Characteristic: 00002aa6-0000-1000-8000-00805f9b34fb READ 
  Service: 00001801-0000-1000-8000-00805f9b34fb
    Characteristic: 00002a05-0000-1000-8000-00805f9b34fb INDICATE 
  Service: 0000180d-0000-1000-8000-00805f9b34fb
    Characteristic: 00002a37-0000-1000-8000-00805f9b34fb NOTIFY 
    Characteristic: 00002a38-0000-1000-8000-00805f9b34fb READ 
    Characteristic: 00002a39-0000-1000-8000-00805f9b34fb WRITE 
  Service: 0000180a-0000-1000-8000-00805f9b34fb
    Characteristic: 00002a29-0000-1000-8000-00805f9b34fb READ 
    Characteristic: 00002a23-0000-1000-8000-00805f9b34fb READ 
    Characteristic: 00002a24-0000-1000-8000-00805f9b34fb READ 
    Characteristic: 00002a25-0000-1000-8000-00805f9b34fb READ 
    Characteristic: 00002a26-0000-1000-8000-00805f9b34fb READ 
    Characteristic: 00002a27-0000-1000-8000-00805f9b34fb READ 
    Characteristic: 00002a28-0000-1000-8000-00805f9b34fb READ 
    Characteristic: 00002a2a-0000-1000-8000-00805f9b34fb READ 
  Service: 00002760-08c2-11e1-9073-0e8ac72e1011
    Characteristic: 00002760-08c2-11e1-9073-0e8ac72e0011 WRITE NO RESPONSE 
    Characteristic: 00002760-08c2-11e1-9073-0e8ac72e0012 NOTIFY 
    Characteristic: 00002760-08c2-11e1-9073-0e8ac72e0013 WRITE NO RESPONSE NOTIFY 

✔ [18:05|coelner@localhost ~]$ ble-serial -v -d a4:c1:38:02:b9:dd
18:05:53.471 | INFO | virtual_serial.py: Slave created on /tmp/ttyBLE -> /dev/pts/4
18:05:54.125 | INFO | interface.py: Connected device a4:c1:38:02:b9:dd
18:05:54.125 | DEBUG | interface.py: No write uuid specified, trying ['0000ff02-0000-1000-8000-00805f9b34fb', '0000ffe1-0000-1000-8000-00805f9b34fb']
18:05:54.484 | DEBUG | interface.py: Found write characteristic 0000ffe1-0000-1000-8000-00805f9b34fb
18:05:54.485 | INFO | interface.py: Receiver set up
18:05:54.485 | INFO | __main__.py: Running main loop!
18:06:59.553 | WARNING | __main__.py: Bluetooth connection failed
18:06:59.553 | WARNING | __main__.py: Shutdown initiated
18:06:59.553 | INFO | virtual_serial.py: Stopping UART thread
18:07:00.556 | INFO | interface.py: BT disconnected
18:07:00.556 | INFO | __main__.py: Shutdown complete.
✔ [18:07|coelner@localhost ~]$

After a minute I shut down the UT61E.

Jakeler commented 3 years ago

Please try: ble-serial -v -d a4:c1:38:02:b9:dd -r 0000ffe1-0000-1000-8000-00805f9b34fb (or with 0000ffe2...)

coelner commented 3 years ago 
✔ [07:16|coelner@localhost ~]$ ble-serial -v -d a4:c1:38:02:b9:dd -r 0000ffe1-0000-1000-8000-00805f9b34fb
07:17:39.223 | INFO | virtual_serial.py: Slave created on /tmp/ttyBLE -> /dev/pts/4
07:17:39.618 | INFO | interface.py: Connected device a4:c1:38:02:b9:dd
07:17:39.618 | DEBUG | interface.py: No write uuid specified, trying ['0000ff02-0000-1000-8000-00805f9b34fb', '0000ffe1-0000-1000-8000-00805f9b34fb']
07:17:39.917 | DEBUG | interface.py: Found write characteristic 0000ffe1-0000-1000-8000-00805f9b34fb
07:17:40.217 | DEBUG | interface.py: Found read characteristic 0000ffe1-0000-1000-8000-00805f9b34fb
07:18:09.378 | INFO | interface.py: Receiver set up
07:18:09.379 | INFO | __main__.py: Running main loop!
07:18:12.338 | DEBUG | interface.py: Received notify: b'\xb0\xb0\xb0\xb0\xb0\xb0;\xb0\xb0\xb0\xba\xb0\r\x8a'
07:18:12.338 | DEBUG | virtual_serial.py: Write: b'\xb0\xb0\xb0\xb0\xb0\xb0;\xb0\xb0\xb0\xba\xb0\r\x8a'
07:18:12.361 | DEBUG | interface.py: Received notify: b'\xb0\xb0\xb0\xb0\xb0\xb0;\xb0\xb0\xb0\xba\xb0\r\x8a'
07:18:12.361 | DEBUG | virtual_serial.py: Write: b'\xb0\xb0\xb0\xb0\xb0\xb0;\xb0\xb0\xb0\xba\xb0\r\x8a'
07:18:12.361 | DEBUG | interface.py: Received notify: b'\xb0\xb0\xb0\xb0\xb0\xb0;\xb0\xb0\xb0\xba\xb0\r\x8a'
07:18:12.361 | DEBUG | virtual_serial.py: Write: b'\xb0\xb0\xb0\xb0\xb0\xb0;\xb0\xb0\xb0\xba\xb0\r\x8a'
07:18:13.827 | DEBUG | interface.py: Received notify: b'\xb0\xb0\xb0\xb0\xb0\xb0;\xb0\xb0\xb0\xba\xb0\r\x8a'
07:18:13.827 | DEBUG | virtual_serial.py: Write: b'\xb0\xb0\xb0\xb0\xb0\xb0;\xb0\xb0\xb0\xba\xb0\r\x8a'
07:18:15.298 | DEBUG | interface.py: Received notify: b'\xb0\xb0\xb0\xb0\xb0\xb0;\xb0\xb0\xb0\xba\xb0\r\x8a'
07:18:15.298 | DEBUG | virtual_serial.py: Write: b'\xb0\xb0\xb0\xb0\xb0\xb0;\xb0\xb0\xb0\xba\xb0\r\x8a'
07:18:16.786 | DEBUG | interface.py: Received notify: b'\xb0\xb0\xb0\xb0\xb0\xb0;\xb0\xb0\xb0\xba\xb0\r\x8a'
07:18:16.786 | DEBUG | virtual_serial.py: Write: b'\xb0\xb0\xb0\xb0\xb0\xb0;\xb0\xb0\xb0\xba\xb0\r\x8a'
[snip]
^C07:21:03.717 | INFO | __main__.py: Keyboard interrupt received
07:21:03.717 | WARNING | __main__.py: Shutdown initiated
07:21:03.717 | INFO | virtual_serial.py: Stopping UART thread
07:21:03.839 | INFO | interface.py: BT disconnected
07:21:03.839 | INFO | __main__.py: Shutdown complete.

improvement: fix the millisecond time print to 3 decimals, that makes the output readable

coelner commented 3 years ago 
07:36|coelner@localhost ~]$ ble-serial -v -d a4:c1:38:02:b9:dd -r 0000ffe2-0000-1000-8000-00805f9b34fb
07:36:46.21 | INFO | virtual_serial.py: Slave created on /tmp/ttyBLE -> /dev/pts/4
07:36:47.117 | INFO | interface.py: Connected device a4:c1:38:02:b9:dd
07:36:47.117 | DEBUG | interface.py: No write uuid specified, trying ['0000ff02-0000-1000-8000-00805f9b34fb', '0000ffe1-0000-1000-8000-00805f9b34fb']
07:36:47.616 | DEBUG | interface.py: Found write characteristic 0000ffe1-0000-1000-8000-00805f9b34fb
07:36:48.17 | DEBUG | interface.py: Found read characteristic 0000ffe2-0000-1000-8000-00805f9b34fb
07:37:12.600 | WARNING | __main__.py: Bluetooth connection failed
07:37:12.601 | WARNING | __main__.py: Shutdown initiated
07:37:12.601 | INFO | virtual_serial.py: Stopping UART thread
07:37:12.601 | INFO | __main__.py: Shutdown complete.
Jakeler commented 3 years ago

Okay, this is the expected behavior. It does not subscribe per default to notifications, as only few modules require this. You just have to specify the read UUID in this case, I have clarified this in the readme now.

I have also fixed the timestamp to 3 decimals.