Allow extended messages.

Author: ntoll

adafruit_radio.py

@@ -51,7 +51,7 @@
 
 
 #: Maximum length of a message (in bytes).
-MAX_LENGTH = 21
+MAX_LENGTH = 248
 
 #: Amount of time to advertise a message (in seconds).
 AD_DURATION = 0.5
@@ -158,7 +158,7 @@ def receive_full(self):
         """
         try:
             for entry in self.ble.start_scan(
-                AdafruitRadio, minimum_rssi=-255, timeout=1
+                AdafruitRadio, minimum_rssi=-255, timeout=1, extended=True
             ):
                 # Extract channel and unique message ID bytes.
                 chan, uid = struct.unpack("<BB", entry.msg[:2])

tests/test_adafruit_radio.py

@@ -136,7 +136,8 @@ def test_radio_receive_full_no_messages(radio):
     radio.ble.start_scan.return_value = []
     assert radio.receive_full() is None
     radio.ble.start_scan.assert_called_once_with(
-        adafruit_radio.AdafruitRadio, minimum_rssi=-255, timeout=1
+        adafruit_radio.AdafruitRadio, minimum_rssi=-255, timeout=1,
+        extended=True
     )
     radio.ble.stop_scan.assert_called_once_with()