add command_tx to aprs

rpitx.py

@@ -176,28 +176,41 @@ if __name__ == "__main__":
 						print("Packet ready!")
 					system("gen_packets -o /home/pi/CubeSatSim/telem.wav /home/pi/CubeSatSim/t.txt -r 48000 > /dev/null 2>&1")
 					system("cat /home/pi/CubeSatSim/t.txt")
-					output(txLed, txLedOn)
-#					output(pd, 1)
-					output (ptt, 0)
-					sleep(.1)
-
-					if (txc):
-						system("aplay /home/pi/CubeSatSim/telem.wav")
-					else:			
-						if (debug_mode == 1):
-							system("gen_packets -o /home/pi/CubeSatSim/telem.wav /home/pi/CubeSatSim/t.txt -r 48000 > /dev/null 2>&1 && cat /home/pi/CubeSatSim/telem.wav | csdr convert_i16_f | csdr gain_ff 7000 | csdr convert_f_samplerf 20833 | sudo /home/pi/rpitx/rpitx -i- -m RF -f 434.9e3")
-						else:
-							system("gen_packets -o /home/pi/CubeSatSim/telem.wav /home/pi/CubeSatSim/t.txt -r 48000 > /dev/null 2>&1 && cat /home/pi/CubeSatSim/telem.wav | csdr convert_i16_f | csdr gain_ff 7000 | csdr convert_f_samplerf 20833 | sudo /home/pi/rpitx/rpitx -i- -m RF -f 434.9e3 > /dev/null 2>&1")
+					if (command_tx == True):
+						output(txLed, txLedOn)
+#						output(pd, 1)
+						output (ptt, 0)
+						sleep(.1)
+				
+						if (txc):
+							system("aplay /home/pi/CubeSatSim/telem.wav")
+						else:			
+							if (debug_mode == 1):
+								system("gen_packets -o /home/pi/CubeSatSim/telem.wav /home/pi/CubeSatSim/t.txt -r 48000 > /dev/null 2>&1 && cat /home/pi/CubeSatSim/telem.wav | csdr convert_i16_f | csdr gain_ff 7000 | csdr convert_f_samplerf 20833 | sudo /home/pi/rpitx/rpitx -i- -m RF -f 434.9e3")
+							else:
+								system("gen_packets -o /home/pi/CubeSatSim/telem.wav /home/pi/CubeSatSim/t.txt -r 48000 > /dev/null 2>&1 && cat /home/pi/CubeSatSim/telem.wav | csdr convert_i16_f | csdr gain_ff 7000 | csdr convert_f_samplerf 20833 | sudo /home/pi/rpitx/rpitx -i- -m RF -f 434.9e3 > /dev/null 2>&1")
 					
-					sleep(0.1)  
-					output (ptt, 1)
-#					output(pd, 0)
-					output(txLed, txLedOff)
+						sleep(0.1)  
+						output (ptt, 1)
+#						output(pd, 0)
+						output(txLed, txLedOff)
 					f.close()
 					system("sudo rm /home/pi/CubeSatSim/ready")
 					if (debug_mode == 1):
 						print("Ready for next packet!")
+						
 					sleep(0.5)
+					if GPIO.input(squelch) == False:
+						print("carrier received!")
+						command_tx = not command_tx
+						print(command_tx)
+						if (command_tx == True):
+							print("Turning on transmit")
+							system("echo > command_tx True")
+						else:
+						if (command_tx == True):
+							print("Turning off transmit")
+							system("echo > command_tx False")
 				except:		  
 					sleep(0.5)
 		elif (mode == 'm'):