possible fix for LLT/JBS connection problems

Louisvdw#769
Louisvdw#777

etc/dbus-serialbattery/bms/lltjbd_ble.py

@@ -3,6 +3,7 @@
 import atexit
 import functools
 import threading
+import sys
 from asyncio import CancelledError
 from typing import Union, Optional
 from utils import logger
@@ -55,8 +56,14 @@ async def bt_main_loop(self):
             self.device = await BleakScanner.find_device_by_address(
                 self.address, cb=dict(use_bdaddr=True)
             )
-        except Exception as e:
-            logger.error(">>> ERROR: Bluetooth stack failed.", e)
+
+        except Exception:
+            exception_type, exception_object, exception_traceback = sys.exc_info()
+            file = exception_traceback.tb_frame.f_code.co_filename
+            line = exception_traceback.tb_lineno
+            logger.error(
+                f"Exception occurred: {repr(exception_object)} of type {exception_type} in {file} line #{line}"
+            )
             self.device = None
             await asyncio.sleep(0.5)
 
@@ -173,8 +180,6 @@ def read_serial_data_llt(self, command):
 
 
 if __name__ == "__main__":
-    import sys
-
     bat = LltJbd_Ble("Foo", -1, sys.argv[1])
     if not bat.test_connection():
         logger.error(">>> ERROR: Unable to connect")

etc/dbus-serialbattery/reinstall-local.sh

@@ -175,6 +175,11 @@ if [ "$length" -gt 0 ]; then
     opkg update
     opkg install python3-misc python3-pip
     pip3 install bleak
+    # pip3 install bleak==0.20.2
+    # pip3 install bleak==0.21.0
+    pip3 install dbus-fast==1.87.0
+    # pip3 install dbus-fast==1.87.3
+    # pip3 install dbus-fast==1.87.4
 
     echo "done."
     echo

etc/dbus-serialbattery/utils.py

@@ -38,7 +38,7 @@ def _get_list_from_config(
 
 
 # Constants
-DRIVER_VERSION = "1.0.20230902dev"
+DRIVER_VERSION = "1.0.20230904dev"
 zero_char = chr(48)
 degree_sign = "\N{DEGREE SIGN}"