fix #52

Author: michaeldye

adafruit_rfm69.py

@@ -312,7 +312,7 @@ def __init__(  # pylint: disable=invalid-name
         self.reset()  # Reset the chip.
         # Check the version of the chip.
         version = self._read_u8(_REG_VERSION)
-        if version != 0x24:
+        if version not in [0x23, 0x24]:
             raise RuntimeError("Invalid RFM69 version, check wiring!")
         self.idle()  # Enter idle state.
         # Setup the chip in a similar way to the RadioHead RFM69 library.