added automatic band control, added some error handling

hrctl.py

@@ -17,8 +17,10 @@ class SerialHamlib:
         self._ser = serial.Serial(port, timeout=0.5)
 
     def write_cmd(self, cmd) -> None:
-       # TODO add error handling an try catch
-        self._ser.write(cmd)
+        try:
+            self._ser.write(cmd)
+        except:
+            print("Error while sending serial command.")
 
     def get_temperature(self) -> int:
         try:
@@ -56,6 +58,39 @@ class SerialHamlib:
     def set_tune_next(self) -> None:
         self._ser.write(b'HRTU1;')
 
+    def set_band_6(self) -> None:
+        self._ser.write(b'HRBN0;')
+
+    def set_band_10(self) -> None:
+        self._ser.write(b'HRBN1;')
+
+    def set_band_12(self) -> None:
+        self._ser.write(b'HRBN2;')
+
+    def set_band_15(self) -> None:
+        self._ser.write(b'HRBN3;')
+
+    def set_band_17(self) -> None:
+        self._ser.write(b'HRBN4;')
+
+    def set_band_20(self) -> None:
+        self._ser.write(b'HRBN5;')
+
+    def set_band_30(self) -> None:
+        self._ser.write(b'HRBN6;')
+
+    def set_band_40(self) -> None:
+        self._ser.write(b'HRBN7;')
+
+    def set_band_60(self) -> None:
+        self._ser.write(b'HRBN8;')
+
+    def set_band_80(self) -> None:
+        self._ser.write(b'HRBN9;')
+
+    def set_band_160(self) -> None:
+        self._ser.write(b'HRBN10;')
+
     def set_auto_tx_data(self, enable: int =1) -> None:
         self._ser.write(b'HRRP1;')
 
@@ -126,14 +161,18 @@ def band_tostr(band: int) -> str:
 
 rpc = JSONRPCProtocol()
 hardrock = SerialHamlib('/dev/ttyUSB0')
+match = None
 
-print("Temp:", hardrock.get_temperature())
-print("Volt:", hardrock.get_voltage())
-print("Band:", band_tostr(hardrock.get_band()))
-print("ATU:", hardrock.get_atu_status())
-tx_status = hardrock.get_tx_status()
+try:
+    print("Temp:", hardrock.get_temperature())
+    print("Volt:", hardrock.get_voltage())
+    print("Band:", band_tostr(hardrock.get_band()))
+    print("ATU:", hardrock.get_atu_status())
+    tx_status = hardrock.get_tx_status()
+    match = re.search("HRMX P(\d+) A(\d+) S(\d+) T(\d+)",tx_status)
+except:
+    print("Error while querying data from Hardrock 50.")
 
-match = re.search("HRMX P(\d+) A(\d+) S(\d+) T(\d+)",tx_status)
 
 # print("TX:", tx_status)
 if match:
@@ -177,6 +216,50 @@ def setTune():
         hardrock.set_tune_next()
         return hardrock.get_tune_next()
 
+@dispatcher.public
+def setBand6():
+        hardrock.set_band_6()
+
+@dispatcher.public
+def setBand10():
+        hardrock.set_band_10()
+
+@dispatcher.public
+def setBand12():
+        hardrock.set_band_12()
+
+@dispatcher.public
+def setBand15():
+        hardrock.set_band_15()
+
+@dispatcher.public
+def setBand17():
+        hardrock.set_band_17()
+
+@dispatcher.public
+def setBand20():
+        hardrock.set_band_20()
+
+@dispatcher.public
+def setBand30():
+        hardrock.set_band_30()
+
+@dispatcher.public
+def setBand40():
+        hardrock.set_band_40()
+
+@dispatcher.public
+def setBand60():
+        hardrock.set_band_60()
+
+@dispatcher.public
+def setBand80():
+        hardrock.set_band_80()
+
+@dispatcher.public
+def setBand160():
+        hardrock.set_band_160()
+
 @dispatcher.public
 def getStatus():
         result = {}
@@ -199,6 +282,4 @@ def getStatus():
         return result
 
 # in the main greenlet, run our rpc_server
-rpc_server.serve_forever()
-
-
+rpc_server.serve_forever()