mstyne/eme_wsjtx.py

## eme_wsjtx.py
#!/usr/bin/python3
# coding: utf-8

# This script allows to rotate an antenna system either by manually typing in a heading (azimuth and/or elevation)
# you want the antenna to rotate to or by automatically tracking the moon azimuth and elevation.
# The Moon azimuth and elevation are extracted out of the file azel.dat provided by the WSJT-X suite.
# Beside WSJT-X, this script also makes use of the rotator controller daemon embedded in the Hamlib
# libraries. So, the prerequisites for this script to run are WSJT-X opened and running, and the
# Hamlib librairies installed on your Raspberry Pi.
# This script has been written in Python 3 by Didier, ON4KDV and Gaëtan, ON4KHG.
# My personnal system makes use of a Raspberry Pi 4B and an ERC-3D (DF9GR) antenna rotator controller.
# Both are linked with a USB (on the Raspberry Pi side) to RS232 serial (on the controller side) connection.

# First, import the time, system and subprocess functions needed in this script

import time
import os, sys
import subprocess

# Select the USB port of the Raspberry Pi onto which the rotator controller is connected.
# Normally, as WSJT-X is started beforehand, the USB0 port is already assigned for the CAT & PTT of WSJT-X.
# In my case, I usually select USB1, so, I type "1" below.

usb_port=(input("USB port to use (0-3) : "))
print()

if usb_port == "0":

# The Rotctld(aemon) is opened with the command "rotctld -m 601 -r /dev/ttyUSB0 &".
# -m 601 is related to the GS-232A rotator protocol.
# You could have to have to select another number according to the protocol and associated hardware in use on your side.
# The list of supported protocols can be obtained by typing "rotctld -l" in the terminal.
# ttyUSB0 is the serial port (USB0) of the Raspberry onto which the rotator controller is connected.

        subprocess.call('rotctld -m 601 -r /dev/ttyUSB0 &', shell=True)

# And so on for the other USB ports.

elif usb_port == "1":

        subprocess.call('rotctld -m 601 -r /dev/ttyUSB1 &', shell=True)

elif usb_port == "2":

        subprocess.call('rotctld -m 601 -r /dev/ttyUSB2 &', shell=True)

elif usb_port == "3":

        subprocess.call('rotctld -m 601 -r /dev/ttyUSB3 &', shell=True)

# Select the working mode : manual, automatic (moon tracking) or exit.

Mode=(input("MANUAL rotation/elevation, type m\nAUTOMATIC tracking, type a\nEXIT, type e\n\n"))

if Mode == "m":

# If "m" is chosen, the manual rotation mode is selected.

    while (True):

# Then, select what you want to do : rotate/elevate the antenna, get its current position, stop the rotation in case
# of emergency or exit.

      Submode=(input("\nROTATE antenna (azimuth only) and set elevation to 0°, type r\nROTATE and ELEVATE antenna (azimuth and elevation), type l\nGet current POSITION, type p\nSTOP, type s\nEXIT, type e\n\n"))

      if Submode == "r":

# If "r" is selected, instruct towards which azimuth the antenna has to rotate. With this selection, if the antenna was previously elevated,
# it will be set back to 0° (no elevation) too.

         az=(input("\nRotate antenna to azimuth (°) : "))
         az=az.strip()

# Build and execute the command "set_pos". The default port used by the rotctld(aemon) is 4533.

         command_az='echo "|\set_pos ' + az + ' 0" | nc -w 1 localhost 4533'
         os.system(command_az)

      elif Submode == "l":

# If "l" is selected, you can set whatever azimuth and elevation angle.

         az=(input("\nRotate antenna to azimuth (°) : "))
         az=az.strip()
         el=(input("Elevate antenna to elevation (°) : "))
         el=el.strip()

         command_azel='echo "|\set_pos ' + az + ' ' + el + '" | nc -w 1 localhost 4533'
         os.system(command_azel)

# If "p" to get the position of the antenne is selected, build and execute the command "get_pos".

      elif Submode == "p":

         command_azpos='echo "|\get_pos" | nc -w 1 localhost 4533'
         os.system(command_azpos)

# If "s" to (emergency) stop is selected, build and execute the command "S" (Stop).

      elif Submode == "s":

         command_stop='echo S | nc -w 1 localhost 4533'
         os.system(command_stop)

      else:

# If none of the above is selected, then exit the script.

         exit()

elif Mode == "a":

# If "a" is chosen, the automatic (moon tracking) mode is selected.
# Set the refresh rate in minutes of the moon azimuth and elevation.
# With narrow beamwidth antennas (microwaves), the refresh rate has to be fast.
# With wide beamwidth antennas, the refresh rate can be slower. On 2m, I chose 4 minutes.
# If you want a refresh time in seconds, remove the line "ref=ref*60" and rename "min" into "sec"
# in the line ref=int(input("\nRefresh duration (min) : ")).

    ref=int(input("\nRefresh duration (min) : "))
    ref=ref*60

    while (True):

# Open the file azel.dat of WSJT-X in read mode. Make sure the path "/home/pi/.local/share/WSJT-X/azel.dat" is the same
# than the path defined in the settings of WSJT-X (see the WSJT-X user guide).
# The first line of the file is read and placed in the variable "txt" and then the file is closed.

      f=open("/home/pi/.local/share/WSJT-X/azel.dat","r")
      txt=f.readline()
      f.close()

      if ("Moon" in txt):                  # Check that the first line contains the word "Moon".
        p=txt.find(",")                    # Search for the 1st comma (,).
        if (p > 1):                        # If the 1st comma has been found
            txt=txt[p+1:]                  # what is in front of the 1st comma is removed, including the comma.
            p=txt.find(",")                # Search for the 2nd comma.
            if (p > 1):                    # If the 2nd comma has been found

                az=txt[0:p]              # the text in between the 1st and 2nd commas is saved in "az" (azimuth).
                az=az.strip()            # Spaces before and after are removed, only the figures/sign are kept.
                print("Moon azimuth (°) :",az)   # The moon azimuth is displayed.
                txt=txt[p+1:]              # What is in front of the 2nd comma is removed, including the comma.

                p=txt.find(",")          # Search for the 3rd comma.
                if (p > 1):              # If the 3rd comma has been found

                    el=txt[0:p]          # the text in between the 2nd and 3rd commas is saved in "el" (elevation).
                    el=el.strip()        # Spaces before and after are removed, only the figures/sign are kept.
                    print("Moon elevation (°) :",el)   # The moon elevation is displayed.

# Build the command "set_pos" as from the az and el variables extracted above.

                    command_azel='echo "|\set_pos ' + az + ' ' + el + '" | nc -w 1 localhost 4533'

# Convert az and el from text to float (numerical) format.

                    f_az=float(az)
                    f_el=float(el)

# Execute the command only if the azimuth is between 0 and 360° and if the elevation is between 0 and 90°.

                    if(f_az >0 and f_az <361 and f_el >0 and f_el <91):
                         os.system(command_azel)

# Otherwise the moon is below the horizon and nothing is executed but displaying that the moon is below horizon.

                    else:
                         print('\nThe moon is below horizon, antenna parked !')

# We wait 5 seconds, the time for the antenna to rotate (it may actually take longer, depending on the position of
# the antenna at startup of the tracking) and then we display the position of the antenna.
# Finally, we indicate that we wait until the next update, according to the refresh duration (ref) defined above.

                    time.sleep(5)
                    print()
                    command_azelpos='echo "|\get_pos" | nc -w 1 localhost 4533'
                    os.system(command_azelpos)
                    print('\nWaiting for the next update or CTRL+C to exit\n')

      time.sleep(ref)

# If none of the working mode (manual or automatic moon tracking) was selected, exit and close the script.

else:
    exit()
	#!/usr/bin/python3
	# coding: utf-8

	# This script allows to rotate an antenna system either by manually typing in a heading (azimuth and/or elevation)
	# you want the antenna to rotate to or by automatically tracking the moon azimuth and elevation.
	# The Moon azimuth and elevation are extracted out of the file azel.dat provided by the WSJT-X suite.
	# Beside WSJT-X, this script also makes use of the rotator controller daemon embedded in the Hamlib
	# libraries. So, the prerequisites for this script to run are WSJT-X opened and running, and the
	# Hamlib librairies installed on your Raspberry Pi.
	# This script has been written in Python 3 by Didier, ON4KDV and Gaëtan, ON4KHG.
	# My personnal system makes use of a Raspberry Pi 4B and an ERC-3D (DF9GR) antenna rotator controller.
	# Both are linked with a USB (on the Raspberry Pi side) to RS232 serial (on the controller side) connection.

	# First, import the time, system and subprocess functions needed in this script

	import time
	import os, sys
	import subprocess

	# Select the USB port of the Raspberry Pi onto which the rotator controller is connected.
	# Normally, as WSJT-X is started beforehand, the USB0 port is already assigned for the CAT & PTT of WSJT-X.
	# In my case, I usually select USB1, so, I type "1" below.

	usb_port=(input("USB port to use (0-3) : "))
	print()

	if usb_port == "0":

	# The Rotctld(aemon) is opened with the command "rotctld -m 601 -r /dev/ttyUSB0 &".
	# -m 601 is related to the GS-232A rotator protocol.
	# You could have to have to select another number according to the protocol and associated hardware in use on your side.
	# The list of supported protocols can be obtained by typing "rotctld -l" in the terminal.
	# ttyUSB0 is the serial port (USB0) of the Raspberry onto which the rotator controller is connected.

	subprocess.call('rotctld -m 601 -r /dev/ttyUSB0 &', shell=True)

	# And so on for the other USB ports.

	elif usb_port == "1":

	subprocess.call('rotctld -m 601 -r /dev/ttyUSB1 &', shell=True)

	elif usb_port == "2":

	subprocess.call('rotctld -m 601 -r /dev/ttyUSB2 &', shell=True)

	elif usb_port == "3":

	subprocess.call('rotctld -m 601 -r /dev/ttyUSB3 &', shell=True)

	# Select the working mode : manual, automatic (moon tracking) or exit.

	Mode=(input("MANUAL rotation/elevation, type m\nAUTOMATIC tracking, type a\nEXIT, type e\n\n"))

	if Mode == "m":

	# If "m" is chosen, the manual rotation mode is selected.

	while (True):

	# Then, select what you want to do : rotate/elevate the antenna, get its current position, stop the rotation in case
	# of emergency or exit.

	Submode=(input("\nROTATE antenna (azimuth only) and set elevation to 0°, type r\nROTATE and ELEVATE antenna (azimuth and elevation), type l\nGet current POSITION, type p\nSTOP, type s\nEXIT, type e\n\n"))

	if Submode == "r":

	# If "r" is selected, instruct towards which azimuth the antenna has to rotate. With this selection, if the antenna was previously elevated,
	# it will be set back to 0° (no elevation) too.

	az=(input("\nRotate antenna to azimuth (°) : "))
	az=az.strip()

	# Build and execute the command "set_pos". The default port used by the rotctld(aemon) is 4533.

	command_az='echo "\|\set_pos ' + az + ' 0" \| nc -w 1 localhost 4533'
	os.system(command_az)

	elif Submode == "l":

	# If "l" is selected, you can set whatever azimuth and elevation angle.

	az=(input("\nRotate antenna to azimuth (°) : "))
	az=az.strip()
	el=(input("Elevate antenna to elevation (°) : "))
	el=el.strip()

	command_azel='echo "\|\set_pos ' + az + ' ' + el + '" \| nc -w 1 localhost 4533'
	os.system(command_azel)

	# If "p" to get the position of the antenne is selected, build and execute the command "get_pos".

	elif Submode == "p":

	command_azpos='echo "\|\get_pos" \| nc -w 1 localhost 4533'
	os.system(command_azpos)

	# If "s" to (emergency) stop is selected, build and execute the command "S" (Stop).

	elif Submode == "s":

	command_stop='echo S \| nc -w 1 localhost 4533'
	os.system(command_stop)

	else:

	# If none of the above is selected, then exit the script.

	exit()

	elif Mode == "a":

	# If "a" is chosen, the automatic (moon tracking) mode is selected.
	# Set the refresh rate in minutes of the moon azimuth and elevation.
	# With narrow beamwidth antennas (microwaves), the refresh rate has to be fast.
	# With wide beamwidth antennas, the refresh rate can be slower. On 2m, I chose 4 minutes.
	# If you want a refresh time in seconds, remove the line "ref=ref*60" and rename "min" into "sec"
	# in the line ref=int(input("\nRefresh duration (min) : ")).

	ref=int(input("\nRefresh duration (min) : "))
	ref=ref*60

	while (True):

	# Open the file azel.dat of WSJT-X in read mode. Make sure the path "/home/pi/.local/share/WSJT-X/azel.dat" is the same
	# than the path defined in the settings of WSJT-X (see the WSJT-X user guide).
	# The first line of the file is read and placed in the variable "txt" and then the file is closed.

	f=open("/home/pi/.local/share/WSJT-X/azel.dat","r")
	txt=f.readline()
	f.close()

	if ("Moon" in txt): # Check that the first line contains the word "Moon".
	p=txt.find(",") # Search for the 1st comma (,).
	if (p > 1): # If the 1st comma has been found
	txt=txt[p+1:] # what is in front of the 1st comma is removed, including the comma.
	p=txt.find(",") # Search for the 2nd comma.
	if (p > 1): # If the 2nd comma has been found

	az=txt[0:p] # the text in between the 1st and 2nd commas is saved in "az" (azimuth).
	az=az.strip() # Spaces before and after are removed, only the figures/sign are kept.
	print("Moon azimuth (°) :",az) # The moon azimuth is displayed.
	txt=txt[p+1:] # What is in front of the 2nd comma is removed, including the comma.

	p=txt.find(",") # Search for the 3rd comma.
	if (p > 1): # If the 3rd comma has been found

	el=txt[0:p] # the text in between the 2nd and 3rd commas is saved in "el" (elevation).
	el=el.strip() # Spaces before and after are removed, only the figures/sign are kept.
	print("Moon elevation (°) :",el) # The moon elevation is displayed.

	# Build the command "set_pos" as from the az and el variables extracted above.

	command_azel='echo "\|\set_pos ' + az + ' ' + el + '" \| nc -w 1 localhost 4533'

	# Convert az and el from text to float (numerical) format.

	f_az=float(az)
	f_el=float(el)

	# Execute the command only if the azimuth is between 0 and 360° and if the elevation is between 0 and 90°.

	if(f_az >0 and f_az <361 and f_el >0 and f_el <91):
	os.system(command_azel)

	# Otherwise the moon is below the horizon and nothing is executed but displaying that the moon is below horizon.

	else:
	print('\nThe moon is below horizon, antenna parked !')

	# We wait 5 seconds, the time for the antenna to rotate (it may actually take longer, depending on the position of
	# the antenna at startup of the tracking) and then we display the position of the antenna.
	# Finally, we indicate that we wait until the next update, according to the refresh duration (ref) defined above.

	time.sleep(5)
	print()
	command_azelpos='echo "\|\get_pos" \| nc -w 1 localhost 4533'
	os.system(command_azelpos)
	print('\nWaiting for the next update or CTRL+C to exit\n')

	time.sleep(ref)

	# If none of the working mode (manual or automatic moon tracking) was selected, exit and close the script.

	else:
	exit()