Adding a pause between message pairs. Currently set to make one pair a second

ADSB_Encoder.py

@@ -61,10 +61,8 @@ def argParser():
     parser.add_argument('-o', '--out', '--output', action='store', type=str, default=cfg.get('general', 'outputfilename'), dest='outputfilename', help='The iq8s output filename. This is the file which you will feed into the hackRF. Default: %(default)s')
     parser.add_argument('-r', '--repeats', action='store', dest='repeats', type=int, default=cfg.getint('general', 'repeats'), help='How many repeats of the data to perform. Default: %(default)s')
     parser.add_argument('--csv', '--csvfile', '--in', '--input', action='store', type=str, default=cfg.get('general', 'csvfile'), dest='csvfile', help='Import a CSV file with the plane data in it. Default: %(default)s')
+    parser.add_argument('--intermessagegap', action='store', type=int, default=cfg.get('general', 'intermessagegap'), dest='intermessagegap', help='When repeating or reading a CSV the number of microseconds between messages. Default: %(default)s')
     # TODO Make it so it can do a static checksum
-    # TODO Get pause between messages
-    # TODO Get pause between repeats
-    # TODO Do a pause function
     return parser.parse_args()
 
 def singlePlane(arguments):
@@ -81,6 +79,9 @@ def singlePlane(arguments):
         hackrf = HackRF()
         samples_array = hackrf.hackrf_raw_IQ_format(df17_array)
         samples = samples+samples_array
+        gap_array = ppm.addGap(arguments.intermessagegap)
+        samples_array = hackrf.hackrf_raw_IQ_format(gap_array)
+        samples = samples+samples_array
     return samples
 
 def manyPlanes(arguments):
@@ -129,6 +130,9 @@ def manyPlanes(arguments):
                 hackrf = HackRF()
                 samples_array = hackrf.hackrf_raw_IQ_format(df17_array)
                 samples = samples+samples_array
+                gap_array = ppm.addGap(arguments.intermessagegap)
+                samples_array = hackrf.hackrf_raw_IQ_format(gap_array)
+                samples = samples+samples_array
     return samples
 
 def writeOutputFile(filename, data):
@@ -188,6 +192,3 @@ def threadingCSV(csv):
 if __name__ == "__main__":
     main()
     
-
-
-

PPM.py

@@ -46,3 +46,16 @@ class PPM:
         #print '[{}]'.format(', '.join(hex(x) for x in ppm))
         
         return bytearray(ppm)
+        
+    def addGap(self, gap):
+        """
+        This function will add dead air as a gap between messages
+        Args:
+            gap: The number of microseconds to have as a gap
+        Returns:
+            The bytearray of the PPM data
+        """
+        ppm = [ ]
+        for i in range(gap):    # pause
+            ppm.append( 0 )
+        return bytearray(ppm)

config.cfg

@@ -2,6 +2,8 @@
 outputfilename = Samples_256K.iq8s
 repeats = 1
 csvfile =
+# Currently in PPM.py one message is 48 dead air, 8 preamble, 112 message, 100 dead air, 8 preamble, 112 message, 48 dead air leaves us with 99564 microseconds to make a second
+intermessagegap = 99564
 
 [plane]
 icao = 0x75008F