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squelch_cc.py
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import RPi.GPIO as GPIO
from RPi.GPIO import output
from time import sleep
from os import system
import sys
def command_control_check():
# global command_control
# global no_command
global debug_mode
command_count = 0
global squelch
global txLed
# output(pd, 1)
# output(ptt, 1)
# sleep(1)
# if (no_command == False and GPIO.input(squelch) == False):
if GPIO.input(squelch) == False:
print("carrier received!")
# command_tx = not command_tx
# print(command_tx)
try:
file = open("/home/pi/CubeSatSim/command_count.txt", "r")
string = file.read()
file.close()
command_count = int(string)
command_count += 1
filec = open("/home/pi/CubeSatSim/command_count.txt", "w")
command_count_string = str(command_count)
print(command_count_string)
string = filec.write(command_count_string)
filec.close()
except:
print("Can't write command_count file!")
print("Command_count: ")
print(command_count)
increment_mode()
# if (command_tx == True):
# print("Turning on transmit")
# system("echo > command_tx True")
# output(txLed, txLedOn)
# sleep(0.5)
# output(txLed, txLedff)
# else:
# print("Turning off transmit")
# system("echo > command_tx False")
## else:
## print("No carrier received!")
# output(pd, 0)
# sleep(1)
def increment_mode():
global debug_mode
print("increment mode")
powerPin = 16
try:
file = open("/home/pi/CubeSatSim/.mode")
mode = file.read(1)
except:
# mode = "f"
# if (debug_mode == 1):
print("Can't open .mode file") # , defaulting to FSK")
file.close()
print("Mode is: ")
print(mode)
if (mode == 'a'):
mode = 'f'
GPIO.output(powerPin, 0) # blink two times
sleep(0.1)
GPIO.output(powerPin, 1)
sleep(0.1)
GPIO.output(powerPin, 0)
sleep(0.1)
GPIO.output(powerPin, 1)
sleep(1)
elif (mode == 'f'):
mode = 'b'
GPIO.output(powerPin, 0) # blink three times
sleep(0.1)
GPIO.output(powerPin, 1)
sleep(0.1)
GPIO.output(powerPin, 0)
sleep(0.1)
GPIO.output(powerPin, 1)
sleep(0.1)
GPIO.output(powerPin, 0)
sleep(0.1)
GPIO.output(powerPin, 1)
sleep(1)
elif (mode == 'b'):
mode = 's'
GPIO.output(powerPin, 0) # blink four times
sleep(0.1)
GPIO.output(powerPin, 1)
sleep(0.1)
GPIO.output(powerPin, 0)
sleep(0.1)
GPIO.output(powerPin, 1)
sleep(0.1)
GPIO.output(powerPin, 0)
sleep(0.1)
GPIO.output(powerPin, 1)
sleep(0.1)
GPIO.output(powerPin, 0)
sleep(0.1)
GPIO.output(powerPin, 1)
sleep(1)
elif (mode == 's'):
mode = 'm'
GPIO.output(powerPin, 0) # blink five times
sleep(0.1)
GPIO.output(powerPin, 1)
sleep(0.1)
GPIO.output(powerPin, 0)
sleep(0.1)
GPIO.output(powerPin, 1)
sleep(0.1)
GPIO.output(powerPin, 0)
sleep(0.1);
GPIO.output(powerPin, 1)
sleep(0.1)
GPIO.output(powerPin, 0)
sleep(0.1)
GPIO.output(powerPin, 1)
sleep(0.1)
GPIO.output(powerPin, 0)
sleep(0.1)
GPIO.output(powerPin, 1)
sleep(1)
else:
mode = 'a'
GPIO.output(powerPin, 0) # blink one time
sleep(0.1)
GPIO.output(powerPin, 1)
sleep(1)
try:
print("/home/pi/CubeSatSim/config -" + mode)
if (debug_mode == False):
GPIO.setwarnings(False)
GPIO.output(txLed, 0)
GPIO.output(powerPin, 0)
system("sudo systemctl stop rpitx")
system("sudo systemctl stop cubesatsim")
system("/home/pi/CubeSatSim/config -" + mode)
print("Changing mode now")
# file = open("/home/pi/CubeSatSim/.mode", "w")
# count_string = str(command_count)
# file.write(mode)
# file.close()
# print(".mode file written")
# print("sudo reboot -h now")
# GPIO.setwarnings(False)
# GPIO.setup(powerPin, GPIO.OUT)
# GPIO.output(powerPin, 0);
# system("reboot -h now")
# release = True;
# system("/home/pi/CubeSatSim/config -" + mode)
# system("reboot -h now")
print(" ")
# sleep(10);
except:
print("can't change mode")
print("Squelch Command and Control active")
debug_mode = False
if (len(sys.argv)) > 1:
# print("There are arguments!")
if ('d' == sys.argv[1]):
debug_mode = True
print("Debug mode - mode changes not made")
GPIO.setmode(GPIO.BCM)
GPIO.setwarnings(False)
squelch = 6
powerPin = 16
txLed = 27
GPIO.setup(squelch, GPIO.IN, pull_up_down=GPIO.PUD_UP) ## pull up in case pin is not connected
GPIO.setup(powerPin, GPIO.OUT)
GPIO.setup(txLed, GPIO.OUT)
while True:
command_control_check()
sleep(0.5)