--- a/src/eric7/MicroPython/Devices/CircuitPythonDevices.py	Sun Mar 12 16:10:56 2023 +0100
+++ b/src/eric7/MicroPython/Devices/CircuitPythonDevices.py	Sun Mar 12 16:17:51 2023 +0100
@@ -1165,7 +1165,7 @@
 def has_bt():
     try:
         import _bleio
-        if hasattr(_bleio, 'adapter'):
+        if hasattr(_bleio, 'adapter') and _bleio.adapter is not None:
             return True
     except ImportError:
         pass