//WIP V3

Default Radio Settings Update
- One location for default radio settings

GQRX Changes
- Default settings
- Simpler check to see if GQRX is started
- Working process handler

BotResources.py

@@ -26,6 +26,17 @@ LOGGER = logging.getLogger('Discord_Radio_Bot.Bot_Resources')
 GQRX_BIN_LOCATION = "/usr/bin/"
 GQRX_BIN = "/usr/bin/gqrx"
 
+
+# Default radio settings
+DEFAULT_RADIO_SETTINGS = {
+    'profile_name': None,
+    'freq': "104700000",
+    'mode': "wfm",
+    'squelch': 0,
+    'noisegate_sensitivity': DEFAULT_NOISEGATE_THRESHOLD,
+}
+
+
 def check_if_config_exists():
     if exists('./config.ini'):
         config = configparser.SafeConfigParser()

bot.py

@@ -42,11 +42,11 @@ class Bot(commands.Bot):
                                                                    _display_output_devices=False)
 
         # Init radio parameters
-        self.profile_name = None
-        self.freq = "104700000"
-        self.mode = "wfm"
-        self.squelch = 0
-        self.noisegate_sensitivity = BotResources.DEFAULT_NOISEGATE_THRESHOLD
+        self.profile_name = BotResources.DEFAULT_RADIO_SETTINGS['profile_name']
+        self.freq = BotResources.DEFAULT_RADIO_SETTINGS['freq']
+        self.mode = BotResources.DEFAULT_RADIO_SETTINGS['mode']
+        self.squelch = BotResources.DEFAULT_RADIO_SETTINGS['squelch']
+        self.noisegate_sensitivity = BotResources.DEFAULT_RADIO_SETTINGS['noisegate_sensitivity']
 
         # Init SDR Variables
         self.system_os_type = None

gqrxHandler.py

@@ -30,14 +30,15 @@ class GQRXHandler(threading.Thread):
         self.GQRXDir: str = GQRX_BIN_LOCATION
         self.GQRXEXE: str = shutil.which(GQRX_BIN)
         self.GQRXProc = None
+        self.GQRX_Started = False
 
         self.logger = logging.getLogger("Discord_Radio_Bot.GQRXHandler")
 
         self.Frequency = None
 
-        self.Mode = None
-        self.Frequency = None
-        self.Squelch = None
+        self.Mode = DEFAULT_RADIO_SETTINGS['mode']
+        self.Frequency = DEFAULT_RADIO_SETTINGS['freq']
+        self.Squelch = DEFAULT_RADIO_SETTINGS['squelch']
 
         self.Start_GQRX = False
         self.Stop_GQRX = False
@@ -68,11 +69,11 @@ class GQRXHandler(threading.Thread):
             sleep(.5)
 
     def set_gqrx_parameters(self, _frequency: str = False, _start: bool = False, _stop: bool = False,
-                            _output_device_name: str = None, _fm_mode: str = None, _squelch: int = None,
+                            _output_device_name: str = None, _fm_mode: str = None, _squelch: float = None,
                             _hostname: str = None, _port: int = None, _start_dsp: bool = None):
         if _frequency:
             self.Frequency = _frequency
-            if self.GQRXProc:
+            if self.GQRX_Started:
                 self.change_freq(_frequency)
 
         if _output_device_name:
@@ -80,12 +81,12 @@ class GQRXHandler(threading.Thread):
 
         if _fm_mode:
             self.Mode = _fm_mode
-            if self.GQRXProc:
+            if self.GQRX_Started:
                 self.change_mode(_fm_mode)
 
         if _squelch:
             self.Squelch = _squelch
-            if self.GQRXProc:
+            if self.GQRX_Started:
                 self.change_squelch(_squelch)
 
         if _hostname:
@@ -106,10 +107,10 @@ class GQRXHandler(threading.Thread):
             self.Stop_GQRX = _stop
 
     def open_gqrx(self):
-        if self.GQRXProc is not None:
+        if self.GQRX_Started:
             self.close_gqrx()
 
-        gqrx_kwargs = [f"-c", "drb_defaults.conf"]
+        gqrx_kwargs = [f"gqrx", "-c", "drb_defaults.conf"]
 
         self.logger.info(f"Resetting 'crashed' option in the GQRX config")
 
@@ -119,13 +120,15 @@ class GQRXHandler(threading.Thread):
 
         self.logger.debug(f"GQRX Keyword Args: {gqrx_kwargs}")
 
-        self.GQRXProc = subprocess.Popen(gqrx_kwargs, executable=self.GQRXEXE, shell=False, cwd=self.GQRXDir)
+        self.GQRXProc = subprocess.Popen(gqrx_kwargs, executable=self.GQRXEXE, shell=False)
 
         while not self.tel_conn:
             self.create_telnet_connection()
             sleep(.5)
             self.logger.debug(f"Waiting for GQRX to start")
 
+        self.GQRX_Started = True
+
         self.start_dsp()
 
         self.set_all_settings(_squelch=self.Squelch, _mode=self.Mode, _freq=self.Frequency)
@@ -145,6 +148,8 @@ class GQRXHandler(threading.Thread):
                 sleep(1)
                 self.logger.debug(f"Waited {seconds_waited} seconds")
                 seconds_waited += 1
+            self.logger.debug("GQRX Closed")
+            self.GQRX_Started = False
 
         except Exception as e:
             self.logger.error(e)

op25Handler.py

@@ -3,6 +3,7 @@ import shutil
 import subprocess
 import threading
 import time
+from BotResources import DEFAULT_RADIO_SETTINGS
 
 
 class OP25Handler(threading.Thread):
@@ -12,7 +13,7 @@ class OP25Handler(threading.Thread):
         self.OP25EXE: str = shutil.which("/home/pi/op25/op25/gr-op25_repeater/apps/rx.py")
         self.OP25Proc = None
 
-        self.Frequency = None
+        self.Frequency = DEFAULT_RADIO_SETTINGS['freq']
 
         self.HTTP_ENABLED = False