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CubeSatSim
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CubeSatSim/transmit.py

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#!/usr/bin/env python
import RPi.GPIO as GPIO
from RPi.GPIO import output
#import subprocess
import time
from time import sleep
#import os
import sys
from os import system
from PIL import Image, ImageDraw, ImageFont, ImageColor
import serial
import random
def battery_saver_check():
try:
global txc
f = open("/home/pi/CubeSatSim/battery_saver", "r")
f.close()
txc = False
print("Safe Mode!")
print("battery saver activated")
except:
print("battery saver not activated")
# txc = True
def blink(times):
powerPin = 16
for i in range(times):
GPIO.output(powerPin, 0) # blink two times
sleep(0.1)
GPIO.output(powerPin, 1)
sleep(0.1)
def increment_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'
blink(2)
sleep(2.5)
elif (mode == 'f'):
mode = 'b'
blink(3)
sleep(2.5)
elif (mode == 'b'):
mode = 's'
blink(4)
sleep(2.5)
elif (mode == 's'):
mode = 'm'
blink(5)
sleep(2.5)
else:
mode = 'a'
blink(1)
sleep(2.5)
try:
file = open("/home/pi/CubeSatSim/.mode", "w")
count_string = str(command_count)
file.write(mode)
file.close()
print(".mode file written")
GPIO.setwarnings(False)
GPIO.output(txLed, 0)
GPIO.output(powerPin, 0)
print("sudo reboot -h now")
GPIO.setwarnings(False)
GPIO.setup(powerPin, GPIO.OUT)
GPIO.output(powerPin, 0);
# system("reboot -h now")
# release = True;
print("Changing mode now")
# system("/home/pi/CubeSatSim/config -" + mode)
system("reboot -h now")
sleep(10);
except:
print("can't write to .mode file")
def camera_photo():
system("sudo rm /home/pi/CubeSatSim/camera_out.jpg")
stored_image = False
try:
system("raspistill -o /home/pi/CubeSatSim/camera_out.jpg -w 320 -h 256") # > /dev/null 2>&1")
f = open("/home/pi/CubeSatSim/camera_out.jpg")
f.close()
print("Photo taken")
except:
system("cp /home/pi/CubeSatSim/sstv//sstv_image_2_320_x_256.jpeg /home/pi/CubeSatSim/camera_out.jpg")
print("Using stored image")
stored_image = True
if (stored_image == False):
file='/home/pi/CubeSatSim/camera_out.jpg'
font1 = ImageFont.truetype('DejaVuSerif.ttf', 20)
font2 = ImageFont.truetype('DejaVuSerif-Bold.ttf', 16)
try:
filep = open("/home/pi/CubeSatSim/telem_string.txt")
telem_string = filep.readline()
except:
telem_string = ""
if (debug_mode == 1):
print("Can't read telem_string.txt")
print(telem_string)
img = Image.open(file)
draw = ImageDraw.Draw(img)
# draw.text((10, 10), callsign, font=font2, fill='white')
# draw.text((120, 10), telem_string, font=font2, fill='white')
draw.text((12, 12), callsign, font=font1, fill='black')
draw.text((10, 10), callsign, font=font1, fill='white')
draw.text((122, 12), telem_string, font=font2, fill='black')
draw.text((120, 10), telem_string, font=font2, fill='white')
img.save(file)
print("CubeSatSim v2.1 transmit.py starting...")
pd = 21
ptt = 20
txc_pin = 7
squelch = 6
green = 16
powerPin = 16
command_tx = True
GPIO.setmode(GPIO.BCM)
GPIO.setwarnings(False)
GPIO.setup(13, GPIO.IN, pull_up_down=GPIO.PUD_UP)
GPIO.setup(12, GPIO.IN, pull_up_down=GPIO.PUD_UP)
GPIO.setup(27, GPIO.IN, pull_up_down=GPIO.PUD_UP)
GPIO.setup(txc_pin, GPIO.IN, pull_up_down=GPIO.PUD_UP)
GPIO.setup(green, GPIO.OUT)
GPIO.output(powerPin, 1)
transmit = False
txLed = 27
txLedOn = 1
txLedOff = 0
if GPIO.input(12) == False:
print("LPF present")
transmit = True
else:
print("No LPF")
# GPIO.setup(txLed, GPIO.OUT)
# output(txLed, txLedOff)
GPIO.setmode(GPIO.BCM) # Repeat to make LED work on Pi 4
GPIO.setwarnings(False)
GPIO.setup(txLed, GPIO.OUT)
GPIO.setup(pd, GPIO.OUT)
#output(pd, 1)
output(pd, 0)
GPIO.setup(ptt, GPIO.OUT)
output (ptt, 1)
txc = False
if GPIO.input(txc_pin) == False:
print("TXC is present")
txc = True;
else:
print("TXC not present")
# txc = False # forcing it off
output(txLed, txLedOn)
sleep(1)
output(txLed, txLedOff)
battery_saver_check()
# print(txLedOn)
print(txLed)
# GPIO.setup(27, GPIO.OUT)
# GPIO.output(27, 0)
debug_mode = 0 # change to 1 to debug transmit
skip = False
if __name__ == "__main__":
mode = "y"
if (len(sys.argv)) > 1:
# print("There are arguments!")
if (('d' == sys.argv[1]) or ('-d' in sys.argv[1])):
debug_mode = 1
elif (('x' == sys.argv[1]) or ('-x' in sys.argv[1])):
mode = "x"
print("Forcing APRS mode")
elif (('s' == sys.argv[1]) or ('-s' in sys.argv[1])):
skip = True
print("Skipping delay and CW ID")
print(transmit)
uptime_time = 45 # 45 second boot time if Pi Zero
try:
f = open("/home/pi/CubeSatSim/pi_zero2", "r")
f.close()
print("Pi Zero 2 detected!")
uptime_time = 20 # 20 second boot time if Pi Zero 2
except:
print("Pi Zero 2 not detected")
try:
system("cat /proc/uptime > /home/pi/CubeSatSim/uptime")
file = open("/home/pi/CubeSatSim/uptime")
up = file.read().split(" ")[0]
print(up)
uptime = float(up)
print(uptime)
if (uptime < uptime_time):
print("Uptime < threshold seconds")
else:
print("Uptime > threshold seconds")
print("Skip CW ID")
skip = True
file.close()
except:
print("Can't open /proc/uptime")
print(skip)
if ( mode == "y"):
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")
print("Mode is: ")
print(mode)
try:
file = open("/home/pi/CubeSatSim/beacon_off")
file.close()
command_tx = False
except:
command_tx = True
if (debug_mode == 1):
print("Can't open beacon_off file, defaulting to False")
print("Command_tx: ")
print(command_tx)
try:
file = open("/home/pi/CubeSatSim/command_count.txt", "r")
string = file.read()
command_count = int(string)
except:
command_count = 0
if (debug_mode == 1):
print("Can't open command_count file, setting to 0")
file = open("/home/pi/CubeSatSim/command_count.txt", "w")
count_string = str(command_count)
file.write(count_string)
file.close()
print("Command_count: ")
print(command_count)
tx_value = '0'
rx_value = '0'
sq = '0'
tx = '434.9000'
rx = '435.0000'
txr = '144.9000'
try:
file = open("/home/pi/CubeSatSim/sim.cfg")
# callsign = file.readline().split(" ")[0]
config = file.readline().split()
callsign = config[0]
if len(config) > 5:
sq = config[5]
if (mode == 'p') or (mode == 'P'):
sq = 0 # turn off squelch for Pacsat
print(sq)
if len(config) > 6:
txf = float(config[6])
# print(txf)
# print( "{:.4f}".format(txf))
if (mode == 'e'):
txr = (txf - 290.0) # - 0.1 # Cross Band Repeater mode transmit frequency in 2m band
tx = "{:.4f}".format(txr)
else:
tx = "{:.4f}".format(txf)
print("Transmit frequency: ",tx)
if len(config) > 7:
rxf = float(config[7])
# print(rxf)
# print( "{:.4f}".format(rxf))
rx = "{:.4f}".format(rxf)
print(rx)
if len(config) > 9:
rxpl = float(config[9])
# print(rxpl)
# print( "{:.0f}".format(rxpl))
rxpl_value = "{:.0f}".format(rxpl)
print(rxpl_value)
if len(config) > 10:
txpl = float(config[10])
# print(txpl)
# print( "{:.0f}".format(txpl))
txpl_value = "{:.0f}".format(txpl)
print(txpl_value)
print(config)
print
# print(callsign)
print(sq)
# if sq == '8':
# print("squelch set to 8, no command input!")
# no_command = True
# else:
no_command = False
print(no_command)
except:
callsign = "AMSAT"
if (debug_mode == 1):
print("Can't read callsign from sim.cfg file, defaulting to AMSAT")
file.close()
try:
f = open("/home/pi/CubeSatSim/command_control", "r")
f.close()
GPIO.setmode(GPIO.BCM)
GPIO.setwarnings(False)
GPIO.setup(squelch, GPIO.IN, pull_up_down=GPIO.PUD_UP) ## pull up in case pin is not connected
if GPIO.input(squelch) == False:
print("squelch not set correctly, no command input!")
no_command = True
else:
print("command and control is activated")
no_command = False
# system("/home/pi/CubeSatSim/command &")
system("sudo systemctl start command")
except:
print("command and control not activated")
no_command = True
print(callsign)
GPIO.setmode(GPIO.BCM) # added to make Tx LED work on Pi 4
print(txLed)
print(txLedOn)
GPIO.setup(txLed, GPIO.OUT)
card = "Headphones" # default using pcm audio output of Pi Zero
# card = "Device" # using USB sound card for audio output
if (mode != 'e'):
print("Programming FM module!\n");
output(pd, 1)
output (ptt, 1)
try:
ser = serial.Serial("/dev/ttyAMA0", 9600)
print(ser.portstr)
# uhf_string = "AT+DMOSETGROUP=0," + rx +"," + tx + ",0,3,0,0\r\n"
uhf_string = "AT+DMOSETGROUP=0," + rx + "," + tx + "," + rxpl_value + "," + sq + "," + txpl_value + ",0\r\n"
print(uhf_string)
for i in range(6):
# ser.write(b"AT+DMOSETGROUP=0,435.0000,434.9000,0,3,0,0\r\n")
ser.write(uhf_string.encode())
sleep(0.1)
ser.close()
ser = serial.Serial("/dev/ttyAMA0", 115200) # reset back to 115200 for cubesatsim code for payload sensor data
except:
print("Error in serial write")
output(pd, 0)
if (((mode == 'a') or (mode == 'b') or (mode == 'f') or (mode == 's') or (mode == 'j')) and (command_tx == True) and (skip == False)) or ((mode == 'e') and (command_tx == True)): # battery_saver_mode
GPIO.setmode(GPIO.BCM) # added to make Tx LED work on Pi Zero 2 and Pi 4
GPIO.setup(txLed, GPIO.OUT)
output(txLed, txLedOn)
print("Transmit CW ID")
if (no_command):
if (debug_mode == 1):
system("echo 'hi hi de " + callsign + "' > id.txt && gen_packets -M 20 /home/pi/CubeSatSim/id.txt -o /home/pi/CubeSatSim/morse.wav -r 48000 > /dev/null 2>&1 && cat /home/pi/CubeSatSim/morse.wav | csdr convert_i16_f | csdr gain_ff 7000 | csdr convert_f_samplerf 20833 | sudo /home/pi/rpitx/rpitx -i- -m RF -f " + tx + "e3")
else:
system("echo 'hi hi de " + callsign + "' > id.txt && gen_packets -M 20 /home/pi/CubeSatSim/id.txt -o /home/pi/CubeSatSim/morse.wav -r 48000 > /dev/null 2>&1 && cat /home/pi/CubeSatSim/morse.wav | csdr convert_i16_f | csdr gain_ff 7000 | csdr convert_f_samplerf 20833 | sudo /home/pi/rpitx/rpitx -i- -m RF -f " + tx + "e3 > /dev/null 2>&1")
else:
if (debug_mode == 1):
system("echo 'hi hi de " + callsign + " C" + "' > id.txt && gen_packets -M 20 /home/pi/CubeSatSim/id.txt -o /home/pi/CubeSatSim/morse.wav -r 48000 > /dev/null 2>&1 && cat /home/pi/CubeSatSim/morse.wav | csdr convert_i16_f | csdr gain_ff 7000 | csdr convert_f_samplerf 20833 | sudo /home/pi/rpitx/rpitx -i- -m RF -f " + tx + "e3")
else:
system("echo 'hi hi de " + callsign + " C" + "' > id.txt && gen_packets -M 20 /home/pi/CubeSatSim/id.txt -o /home/pi/CubeSatSim/morse.wav -r 48000 > /dev/null 2>&1 && cat /home/pi/CubeSatSim/morse.wav | csdr convert_i16_f | csdr gain_ff 7000 | csdr convert_f_samplerf 20833 | sudo /home/pi/rpitx/rpitx -i- -m RF -f " + tx + "e3 > /dev/null 2>&1")
output(txLed, txLedOff)
sleep(1)
else:
print("Don't transmit CW ID since command_tx is False or APRS mode or change of mode")
if (transmit):
# print 'Length: ', len(sys.argv)
# if (len(sys.argv)) > 1:
# print("There are arguments!")
if (mode == 'a') or (mode == 'x') or (mode == 'n'):
# command_control_check()
output(pd, 1)
output(ptt, 1)
if (mode == 'a'):
print("AFSK")
else:
GPIO.output(powerPin, 0)
print("Transmit APRS Commands")
# while True:
# sleep(0.1)
if (mode != 'n'):
system("touch /home/pi/CubeSatSim/ready")
while True:
try:
f = open("/home/pi/CubeSatSim/ready")
f.close()
if (debug_mode == 1):
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")
if (command_tx == True):
GPIO.setmode(GPIO.BCM) # added to make Tx LED work on Pi Zero 2 and Pi 4
GPIO.setup(txLed, GPIO.OUT)
output(txLed, txLedOn)
# output(pd, 1)
# output (ptt, 0)
# sleep(.1)
#
# battery_saver_check()
if (txc):
# output(pd, 1)
sleep(0.1) # add delay before transmit
output (ptt, 0)
sleep(0.3) # add even more time at start
system("aplay -D plughw:CARD=" + card + ",DEV=0 /home/pi/CubeSatSim/telem.wav")
sleep(0.2) # add more time at end
output (ptt, 1)
# output(pd, 0)
else:
system("echo 'AMSAT-11>APCSS:010101/hi hi ' >> t.txt")
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 " + tx + "e3")
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 " + tx + "e3 > /dev/null 2>&1")
sleep(0.1)
# output (ptt, 1)
# output(pd, 0)
output(txLed, txLedOff)
system("sudo rm /home/pi/CubeSatSim/ready")
f.close()
if (debug_mode == 1):
print("Ready for next packet!")
sleep(0.5)
except:
# command_control_check()
sleep(1)
elif (mode == 'm'):
system("touch /home/pi/CubeSatSim/cwready")
print("CW")
while True:
# command_control_check()
output (pd, 1)
output (ptt, 1)
try:
f = open("/home/pi/CubeSatSim/cwready")
f.close()
system("sudo rm /home/pi/CubeSatSim/cwready")
## ch = 1
for chan in range(7):
command = "gen_packets -M 20 -o /home/pi/CubeSatSim/morse.wav /home/pi/CubeSatSim/cw" + str(chan) + ".txt -r 48000 > /dev/null 2>&1"
print(command)
system(command)
## chan = chan + 1
if (command_tx == True):
GPIO.setmode(GPIO.BCM) # added to make Tx LED work on Pi Zero 2 and Pi 4
GPIO.setup(txLed, GPIO.OUT)
output(txLed, txLedOn)
if (txc):
# output (pd, 1)
sleep(0.3)
output (ptt, 0)
system("aplay -D plughw:CARD=" + card + ",DEV=0 /home/pi/CubeSatSim/morse.wav")
sleep(0.1)
output (ptt, 1)
# output (pd, 0)
else:
if (debug_mode == 1):
system("cat /home/pi/CubeSatSim/morse.wav | csdr convert_i16_f | csdr gain_ff 7000 | csdr convert_f_samplerf 20833 | sudo /home/pi/rpitx/rpitx -i- -m RF -f " + tx + "e3")
else:
system("cat /home/pi/CubeSatSim/morse.wav | csdr convert_i16_f | csdr gain_ff 7000 | csdr convert_f_samplerf 20833 | sudo /home/pi/rpitx/rpitx -i- -m RF -f " + tx + "e3 > /dev/null 2>&1")
output(txLed, txLedOff)
# command_control_check()
sleep(2)
f.close()
sleep(10)
except:
# command_control_check()
sleep(1)
elif (mode == 's'):
print("SSTV")
# command_control_check()
output (ptt, 1)
output(pd, 1)
try:
# from picamera import PiCamera
# from pysstv.sstv import SSTV
# camera = PiCamera()
print("Testing for camera")
system("raspistill -o /home/pi/CubeSatSim/camera_out.jpg -w 320 -h 256")
f = open("/home/pi/CubeSatSim/camera_out.jpg")
f.close()
print("Camera present")
camera_present = 1
# camera.close()
except:
print("No camera available")
print(" -> if camera plugged in, is software enabled?")
camera_present = 0
# while 1:
output(txLed, txLedOff)
# output (ptt, 1)
# output(pd, 0)
if (camera_present == 1):
try:
file = open("/home/pi/CubeSatSim/sstv_image_2_320_x_256.jpg")
print("First SSTV stored image detected")
system("/home/pi/PiSSTVpp/pisstvpp -r 48000 -p s2 /home/pi/CubeSatSim/sstv_image_2_320_x_256.jpg")
# command_control_check()
if (command_tx == True):
print ("Sending SSTV image")
GPIO.setmode(GPIO.BCM) # added to make Tx LED work on Pi Zero 2 and Pi 4
GPIO.setup(txLed, GPIO.OUT)
output(txLed, txLedOn)
# battery_saver_check()
if (txc):
# output(pd, 1)
output (ptt, 0)
system("aplay -D plughw:CARD=" + card + ",DEV=0 /home/pi/CubeSatSim/sstv_image_2_320_x_256.jpg.wav")
output (ptt, 1)
# output(pd, 0)
else:
if (debug_mode == 1):
system("cat /home/pi/CubeSatSim/sstv_image_2_320_x_256.jpg.wav | csdr convert_i16_f | csdr gain_ff 14000 | csdr convert_f_samplerf 20833 | sudo rpitx -i- -m RF -f " + tx + "e3")
else:
system("cat /home/pi/CubeSatSim/sstv_image_2_320_x_256.jpg.wav | csdr convert_i16_f | csdr gain_ff 14000 | csdr convert_f_samplerf 20833 | sudo rpitx -i- -m RF -f " + tx + "e3 > /dev/null 2>&1")
output(txLed, txLedOff)
# sleep(1)
except:
print("image 2 did not load - copy from CubeSatSim/sstv directory")
while 1:
# command_control_check()
camera_photo()
## system("raspistill -o /home/pi/CubeSatSim/camera_out.jpg -w 320 -h 256") # > /dev/null 2>&1")
## print("Photo taken")
##
## file='/home/pi/CubeSatSim/camera_out.jpg'
## font1 = ImageFont.truetype('DejaVuSerif.ttf', 20)
## font2 = ImageFont.truetype('DejaVuSerif-Bold.ttf', 16)
##
## try:
## filep = open("/home/pi/CubeSatSim/telem_string.txt")
## telem_string = filep.readline()
## except:
## telem_string = ""
## if (debug_mode == 1):
## print("Can't read telem_string.txt")
## print(telem_string)
##
## img = Image.open(file)
## draw = ImageDraw.Draw(img)
# draw.text((10, 10), callsign, font=font2, fill='white')
# draw.text((120, 10), telem_string, font=font2, fill='white')
## draw.text((12, 12), callsign, font=font1, fill='black')
## draw.text((10, 10), callsign, font=font1, fill='white')
## draw.text((122, 12), telem_string, font=font2, fill='black')
## draw.text((120, 10), telem_string, font=font2, fill='white')
## img.save(file)
# command_control_check()
system("/home/pi/PiSSTVpp/pisstvpp -r 48000 -p s2 /home/pi/CubeSatSim/camera_out.jpg")
system("sudo rm /home/pi/CubeSatSim/camera_out.jpg > /dev/null 2>&1")
# command_control_check()
if (command_tx == True):
print ("Sending SSTV image")
GPIO.setmode(GPIO.BCM) # added to make Tx LED work on Pi Zero 2 and Pi 4
GPIO.setup(txLed, GPIO.OUT)
output(txLed, txLedOn)
# battery_saver_check()
if (txc):
# output(pd, 1)
output (ptt, 0)
system("aplay -D plughw:CARD=" + card + ",DEV=0 /home/pi/CubeSatSim/camera_out.jpg.wav")
output(ptt, 1)
# output (pd, 0)
else:
if (debug_mode == 1):
system("cat /home/pi/CubeSatSim/camera_out.jpg.wav | csdr convert_i16_f | csdr gain_ff 14000 | csdr convert_f_samplerf 20833 | sudo rpitx -i- -m RF -f " + tx + "e3")
else:
system("cat /home/pi/CubeSatSim/camera_out.jpg.wav | csdr convert_i16_f | csdr gain_ff 14000 | csdr convert_f_samplerf 20833 | sudo rpitx -i- -m RF -f " + tx + "e3 > /dev/null 2>&1")
output(txLed, txLedOff)
# output (ptt, 1)
# output(pd, 0)
system("sudo rm /home/pi/CubeSatSim/camera_out.jpg.wav > /dev/null 2>&1")
sleep(10)
else:
try:
# command_control_check()
file = open("/home/pi/CubeSatSim/sstv_image_1_320_x_256.jpg")
print("First SSTV stored image detected")
system("/home/pi/PiSSTVpp/pisstvpp -r 48000 -p s2 /home/pi/CubeSatSim/sstv_image_1_320_x_256.jpg")
# command_control_check()
if (command_tx == True):
print ("Sending SSTV image")
GPIO.setmode(GPIO.BCM) # added to make Tx LED work on Pi Zero 2 and Pi 4
GPIO.setup(txLed, GPIO.OUT)
output(txLed, txLedOn)
# battery_saver_check()
if (txc):
# output(pd, 1)
output (ptt, 0)
system("aplay -D plughw:CARD=" + card + ",DEV=0 /home/pi/CubeSatSim/sstv_image_1_320_x_256.jpg.wav")
output(ptt, 1)
# output (pd, 0)
else:
if (debug_mode == 1):
system("cat /home/pi/CubeSatSim/sstv_image_1_320_x_256.jpg.wav | csdr convert_i16_f | csdr gain_ff 14000 | csdr convert_f_samplerf 20833 | sudo rpitx -i- -m RF -f " + tx + "e3")
else:
system("cat /home/pi/CubeSatSim/sstv_image_1_320_x_256.jpg.wav | csdr convert_i16_f | csdr gain_ff 14000 | csdr convert_f_samplerf 20833 | sudo rpitx -i- -m RF -f " + tx + "e3 > /dev/null 2>&1")
output(txLed, txLedOff)
# output (ptt, 1)
# output(pd, 0)
sleep(1)
except:
print("image 1 did not load - copy from CubeSatSim/sstv directory")
try:
# command_control_check()
file = open("/home/pi/CubeSatSim/sstv_image_2_320_x_256.jpg")
print("Second SSTV stored image detected")
system("/home/pi/PiSSTVpp/pisstvpp -r 48000 -p s2 /home/pi/CubeSatSim/sstv_image_2_320_x_256.jpg")
while 1:
# command_control_check()
if (command_tx == True):
print ("Sending SSTV image")
GPIO.setmode(GPIO.BCM) # added to make Tx LED work on Pi Zero 2 and Pi 4
GPIO.setup(txLed, GPIO.OUT)
output(txLed, txLedOn)
# battery_saver_check()
if (txc):
# output(pd, 1)
output (ptt, 0)
system("aplay -D plughw:CARD=" + card + ",DEV=0 /home/pi/CubeSatSim/sstv_image_1_320_x_256.jpg.wav")
output(ptt, 1)
# output (pd, 0)
else:
if (debug_mode == 1):
system("cat /home/pi/CubeSatSim/sstv_image_2_320_x_256.jpg.wav | csdr convert_i16_f | csdr gain_ff 14000 | csdr convert_f_samplerf 20833 | sudo rpitx -i- -m RF -f " + tx + "e3")
else:
system("cat /home/pi/CubeSatSim/sstv_image_2_320_x_256.jpg.wav | csdr convert_i16_f | csdr gain_ff 14000 | csdr convert_f_samplerf 20833 | sudo rpitx -i- -m RF -f " + tx + "e3 > /dev/null 2>&1")
output(txLed, txLedOff)
# output (ptt, 1)
# output(pd, 0)
sleep(10)
except:
print("image 2 did not load - copy from CubeSatSim/sstv directory")
if (txc == False):
if (command_tx == True):
system("(while true; do (sleep 10 && cat /home/pi/CubeSatSim/wav/sstv.wav); done) | csdr convert_i16_f | csdr gain_ff 7000 | csdr convert_f_samplerf 20833 | sudo rpitx -i- -m RF -f " + tx + "e3 &")
while 1:
if (command_tx == True):
# command_control_check()
GPIO.setmode(GPIO.BCM) # added to make Tx LED work on Pi Zero 2 and Pi 4
GPIO.setup(txLed, GPIO.OUT)
output(txLed, txLedOn)
# battery_saver_check()
if (txc):
# output(pd, 1)
output (ptt, 0)
system("aplay -D plughw:CARD=" + card + ",DEV=0 /home/pi/CubeSatSim/sstv.wav")
output(ptt, 1)
# output (pd, 0)
else:
sleep(60)
output(txLed, txLedOff)
# output (ptt, 1)
# output(pd, 0)
sleep(10)
elif (mode == 'b') or (mode == 'j'):
# command_control_check()
if (mode == 'b'):
print("BPSK")
else:
print("FunCube")
print("turn on FM rx")
output(pd, 1)
output(ptt, 1)
GPIO.setmode(GPIO.BCM) # added to make Tx LED work on Pi 4
GPIO.setup(txLed, GPIO.OUT)
if (command_tx == True):
# system("sudo nc -l 8080 | csdr convert_i16_f | csdr fir_interpolate_cc 2 | csdr dsb_fc | csdr bandpass_fir_fft_cc 0.002 0.06 0.01 | csdr fastagc_ff | sudo /home/pi/rpitx/sendiq -i /dev/stdin -s 96000 -f 434.9e6 -t float &")
system("sudo nc -l 8080 | csdr convert_i16_f | csdr fir_interpolate_cc 2 | csdr dsb_fc | csdr bandpass_fir_fft_cc 0.002 0.06 0.01 | csdr fastagc_ff | sudo /home/pi/rpitx/sendiq -i /dev/stdin -s 96000 -f " + tx + "e6 -t float &")
print("Turning LED on/off and listening for carrier")
image_id = random.randint(0, 255)
print("Initial image_id: " + str(image_id) + "\n")
while 1:
# print ("LED on")
output(txLed, txLedOff)
sleep(0.4)
# if (command_tx == False):
# output(txLed, txLedOn)
# sleep(0.03)
# output(txLed, txLedOff)
# command_control_check()
if (command_tx == True):
GPIO.setmode(GPIO.BCM) # added to make Tx LED work on Pi Zero 2 and Pi 4
GPIO.setup(txLed, GPIO.OUT)
output(txLed, txLedOn)
# print(txLed)
# print(txLedOn)
if (mode == 'b'):
sleep(4.2)
else: # FunCube mode image
for i in range(4):
# print("Checking image_file.bin")
try:
file = open("/home/pi/CubeSatSim/image_file.bin")
file.close()
# image_present = True
sleep(1.0)
except:
# image_present = False
# if (image_present == False):
start = time.perf_counter()
camera_photo()
system("/home/pi/ssdv/ssdv -e -n -i " + str(image_id) + " -q 3 -J /home/pi/CubeSatSim/camera_out.jpg /home/pi/CubeSatSim/image_file.bin")
print("image_id: " + str(image_id) + "\n")
image_id = ( image_id + 1 ) % 256
print("new image_id: " + str(image_id) + "\n")
elapsed_time = time.perf_counter() - start
print("Elapsed time: ")
print(elapsed_time)
if (elapsed_time < 9):
sleep(9 - time.perf_counter() + start)
# else:
sleep(0.6)
elif (mode == 'e'): # code based on https://zr6aic.blogspot.com/2016/11/creating-2m-fm-repeater-with-raspberry.html
print("Cross Band Repeater Mode")
# print("Stopping command and control")
# system("sudo systemctl stop command")
print("turn on FM rx")
output(pd, 1)
output(ptt, 1)
GPIO.setmode(GPIO.BCM) # added to make Tx LED work on Pi 4
GPIO.setup(txLed, GPIO.OUT)
# GPIO.setup(powerPin, GPIO.OUT)
GPIO.setup(squelch, GPIO.IN, pull_up_down=GPIO.PUD_UP) ## pull up in case pin is not connected
# GPIO.output(powerPin, 1) # was 0
# txf = float(tx) - 288.9
# print("Transmit frequency: ",txf)
if (command_tx != True):
print("Beacon mode off so no repeater transmission")
print("Ready to detect carrier")
while True:
if (GPIO.input(squelch) == False) and (command_tx == True):
print("Carrier detected, starting repeater")
GPIO.setmode(GPIO.BCM) # added to make Tx LED work on Pi Zero 2 and Pi 4
GPIO.setup(txLed, GPIO.OUT)
output(txLed, txLedOn)
system("sudo nc -l 8011 | csdr convert_i16_f | csdr gain_ff 16000 | csdr convert_f_samplerf 20833 | sudo rpitx -i- -m RF -f " + tx + "e3 > /dev/null 2>&1 &")
sleep(0.5)
system("sudo arecord -D shared_mic -r48000 -fS16_LE -c1 | nc localhost 8011 &")
while (GPIO.input(squelch) == False):
sleep(1)
print("No carrier detected, stopping repeater")
output(txLed, txLedOff)
system("sudo rpitx -i null > /dev/null 2>&1")
system("sudo killall -9 arecord > /dev/null 2>&1")
system("sudo killall -9 nc > /dev/null 2>&1")
system("sudo killall -9 rpitx > /dev/null 2>&1")
print("Resetting audio")
system("sudo /etc/init.d/alsa-utils stop")
system("sudo /etc/init.d/alsa-utils start")
print("Finished resetting audio")
print("Ready to detect carrier")
else:
print("FSK")
print("turn on FM rx")
output(pd, 1)
output(ptt, 1)
GPIO.setmode(GPIO.BCM) # added to make Tx LED work on Pi 4
GPIO.setup(txLed, GPIO.OUT)
if (command_tx == True):
system("sudo nc -l 8080 | csdr convert_i16_f | csdr gain_ff 7000 | csdr convert_f_samplerf 20833 | sudo /home/pi/rpitx/rpitx -i- -m RF -f " + tx + "e3 &")
print("Turning LED on/off and listening for carrier")
while 1:
output(txLed, txLedOff)
sleep(0.4)
# if (command_tx == False):
# output(txLed, txLedOn)
# sleep(0.03)
# output(txLed, txLedOff)
# command_control_check()
if (command_tx == True):
GPIO.setmode(GPIO.BCM) # added to make Tx LED work on Pi Zero 2 and Pi 4
GPIO.setup(txLed, GPIO.OUT)
output(txLed, txLedOn)
# print(txLed)
# print(txLedOn)
sleep(4.2)
else:
print("No Low Pass Filter so no telemetry transmit. See http://cubesatsim.org/wiki for instructions on how to build the LPF.")
while 1:
sleep(5)
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