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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

Shutdown initiated right after start #2

Closed augustozanellato closed 4 years ago

augustozanellato commented 4 years ago

When I try to connect to an HM-10 module using sudo ble-serial -v -d 5c:f8:21:96:f0:c2 I get the following output

23:15:30.70 | INFO | virtual_serial.py: Slave created on /tmp/ttyBLE -> /dev/pts/1
23:15:31.187 | WARNING | __main__.py: Bluetooth connection lost
23:15:31.187 | WARNING | __main__.py: Shutdown initiated
23:15:31.188 | INFO | virtual_serial.py: Stopping UART thread
23:15:31.188 | INFO | __main__.py: Shutdown complete.
Jakeler commented 4 years ago

That is obviously a bluetooth connection problem. Adapter not powered on? Maybe wrong address? Already connected to something else?

btw: You don't need root for the serial, just for scanning.

augustozanellato commented 4 years ago

Adapter not powered on?

The adapter is on, rfkill says it's unblocked, Gnome also says that Bluetooth is enabled

Maybe wrong address?

It was copy-pasted from ble-scan output

Already connected to something else?

Nope

Edit: the device I'm trying to connect to is an AT-09 dongle flashed with genuine HM-10 firmware, I can connect to it and exchange data without any problems with my phone

Jakeler commented 4 years ago

Hmm, in theory this should work. ble-serial just passes the address to the bluepy library and this log indicates that it throws a BTLEDisconnectError almost immediately, so possibly a bug in the library...

Does it work with bluetoothctl and connect 5c:f8:21:96:f0:c2? Just to rule out issues with the host setup.

Jakeler commented 4 years ago

Closing because of inactivity.