Added support for encoding (receiving) digipeated frames

KissHelper.py

@@ -25,6 +25,11 @@
 #   https://thomask.sdf.org/blog/2018/12/15/sending-raw-ax25-python.html
 #
 # TODO: remove escapes on decoding
+#
+# Changes by PE1RXF
+#
+# 2022-01-23: - in encode_address() added correct handling of has_been_repeated flag '*'
+#
 
 import struct
 
@@ -44,7 +49,16 @@ def encode_address(s, final):
     if len(call) < 6:
         call = call + b" "*(6 - len(call)) # pad with spaces
     encoded_call = [x << 1 for x in call[0:6]]
-    encoded_ssid = (int(ssid) << 1) | 0b01100000 | (0b00000001 if final else 0)
+    
+    encoded_ssid = 0b00000000
+    # If ssid ends with *, the message has been repeated, so we have to set the 'has_been_repeated' flag and remove the * from the ssid
+    if ssid[-1] == 42:
+        # print("Message has been repeated")
+        ssid = ssid[:-1]
+        encoded_ssid |= 0b10000000
+        
+    encoded_ssid |= (int(ssid) << 1) | 0b01100000 | (0b00000001 if final else 0)
+
     return encoded_call + [encoded_ssid]
 
 

TCPServer.py

@@ -60,7 +60,7 @@ class KissServer(Thread):
             encoded_data = KissHelper.encode_kiss(data)
         except Exception as e:
             print("KISS encoding went wrong (exception while parsing)")
-            traceback.print_tb(e.__traceback__)
+            # traceback.print_tb(e.__traceback__)
             encoded_data = None
 
         if encoded_data != None:

config.py

@@ -20,5 +20,5 @@ AXUDP_LOCAL_PORT = 20000
 # USE_AXUDP Switch from KISS to AXUDP if True
 # APPEND_SIGNAL_REPORT adds signal report to text of APRS-Message for debug purpose
 #                      this will change the original message and could cause loops
-USE_AXUDP = True
-APPEND_SIGNAL_REPORT = True
+USE_AXUDP = False
+APPEND_SIGNAL_REPORT = False

pySX127x/SX127x/board_config.py

@@ -33,7 +33,7 @@ class BOARD:
         This is the Raspberry Pi board with one LED and a modtronix inAir9B.
     """
     # Note that the BCOM numbering for the GPIOs is used.
-    DIO0 = 22   # RaspPi GPIO 22
+    DIO0 = 5   # RaspPi GPIO 5
     DIO1 = 23   # RaspPi GPIO 23
     DIO2 = 24   # RaspPi GPIO 24
     DIO3 = 25   # RaspPi GPIO 25