set log file name

api/ble.py

@@ -311,7 +311,7 @@ def test(test_count = 0) -> None:
 if __name__ == "__main__":
     import json
     import sys
-    _file_handler = logging.FileHandler("app.log", mode="a")
+    _file_handler = logging.FileHandler("ble-test.log", mode="a")
     _file_handler.setLevel(logging.INFO)      # same level (or tweak)
     _file_handler.setFormatter(_stdout_handler.formatter)  # reuse formatter
     _logger.addHandler(_file_handler)