rig_sync.py

#!/usr/bin/env python
#
#   Hacky Rig Sync Utility.
#
#   Reads frequency from one rigctld server, and sends it to another rigctld server.
#
#   My use-case: Syncing up a SDR++ instance (connected to a remote spyserver) to my
#   Icom IC-7610. In my case I'm using wfview's rigctld server to access the Icom.
#
#
#   Copyright (C) 2022 Mark Jessop <[email protected]>
#   Released under GNU GPL v3 or later
#
import socket
import time
import logging
import traceback
from threading import Thread

class RIGCTLD(object):
    """ rigctld (hamlib) communication class """
    # Note: This is a massive hack. 

    def __init__(self, hostname, port=4533, timeout=1):
        """ Open a connection to rigctld """
        self.sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        self.sock.settimeout(timeout)

        self.hostname = hostname
        self.port = port


    def connect(self):
        """ Connect to rotctld instance """
        self.sock.connect((self.hostname,self.port))

    def close(self):
        self.sock.close()

    def send_command(self, command, check_response = False):
        """ Send a command to the connected rotctld instance,
            and return the return value.
        """
        command = command.encode('ascii')
        self.sock.sendall(command+b'\n')

        if check_response:
            try:
                return self.sock.recv(1024).decode('ascii')
            except:
                return None
        else:
            return "RPRT 0"

    def get_freq(self):
        freq = self.send_command('f', check_response=True)
        return freq.strip()

    def set_freq(self,freq):
        self.send_command('F ' + freq)


if __name__ == "__main__":
    import argparse

    parser = argparse.ArgumentParser()
    parser.add_argument("--srchost", default="localhost", type=str, help="Source RIGCTLD hostname. (Default: localhost)")
    parser.add_argument("--srcport", default=4533, type=int, help="Source RIGCTLD Port (Default: 4533)")
    parser.add_argument("--dsthost", default="localhost", type=str, help="Destination RIGCTLD hostname. (Default: localhost)")
    parser.add_argument("--dstport", default=4532, type=int, help="Destination RIGCTLD Port (Default: 4533)")
    parser.add_argument("--pollperiod", default=0.2, type=float, help="Polling period (seconds). (Default: 0.2 seconds)")
    args = parser.parse_args()


    rig1 = RIGCTLD(
        hostname=args.srchost, 
        port=args.srcport
    )
    rig1.connect()

    rig2 = RIGCTLD(
        hostname=args.dsthost, 
        port=args.dstport
    )
    rig2.connect()

    while True:
        # Get Freq from Source Rig
        freq = rig1.get_freq()

        # Send to destination rig
        rig2.set_freq(freq)

        print(f"Update frequency: {freq} Hz")

        time.sleep(args.pollperiod)