diff --git a/README.md b/README.md
index 58ea6f6..c9a0b3e 100644
--- a/README.md
+++ b/README.md
@@ -371,6 +371,15 @@ meshcore = await MeshCore.create_serial("/dev/ttyUSB0", debug=True)
 
 This logs detailed information about commands sent and events received.
 
+meshcore_py does not configure Python's root logger or call `logging.basicConfig()` itself - it only attaches a `NullHandler` so it stays silent by default. To see its logs, configure logging in your own application, e.g.:
+
+```python
+import logging
+
+logging.basicConfig(level=logging.INFO)
+logging.getLogger("meshcore").setLevel(logging.DEBUG)
+```
+
 ## Common Examples
 
 ### Sending Messages to Contacts
diff --git a/src/meshcore/__init__.py b/src/meshcore/__init__.py
index 6c7feb3..81b4f51 100644
--- a/src/meshcore/__init__.py
+++ b/src/meshcore/__init__.py
@@ -9,9 +9,11 @@
 from .serial_cx import SerialConnection
 from .tcp_cx import TCPConnection
 
-# Setup default logger
-logging.basicConfig(level=logging.INFO)
+# Setup default logger. Libraries must not configure the root logger (that's
+# the embedding application's call) - a NullHandler just silences the "no
+# handlers found" warning when the app hasn't configured logging at all.
 logger = logging.getLogger(__name__)
+logger.addHandler(logging.NullHandler())
 
 __all__ = [
     "BinaryReqType",
diff --git a/src/meshcore/meshcore.py b/src/meshcore/meshcore.py
index a7e06c1..73b154e 100644
--- a/src/meshcore/meshcore.py
+++ b/src/meshcore/meshcore.py
@@ -46,13 +46,13 @@ def __init__(
         self.commands = CommandHandler(default_timeout=default_timeout)
         self.commands.set_contact_getter_by_prefix(self.get_contact_by_key_prefix)
 
-        # Set up logger
+        # Set up logger. Only override the level when the caller explicitly
+        # asked for debug/only_error behavior - otherwise leave whatever
+        # level the embedding app already configured alone.
         if debug:
             logger.setLevel(logging.DEBUG)
         elif only_error:
             logger.setLevel(logging.ERROR)
-        else:
-            logger.setLevel(logging.INFO)
 
         # Set up connections
         self.commands.set_connection(self.connection_manager)