commit a1979cfe63bb7467efd44f6b3a34e77d1aa3f342
Author: Michael Clemens <git@qrz.is>
Date:   Tue Oct 5 23:10:50 2021 +0100

    first commit

diff --git a/README.md b/README.md
new file mode 100644
index 0000000..e69de29
diff --git a/hr50ctl.py b/hr50ctl.py
new file mode 100755
index 0000000..dedfee8
--- /dev/null
+++ b/hr50ctl.py
@@ -0,0 +1,107 @@
+#!/usr/bin/python3
+
+import serial
+import sys
+import time
+import getopt
+from prettytable import PrettyTable
+
+serial_port = '/dev/ttyUSB0'
+baud = 19200
+
+bands = { 
+        '6': '0',
+        '10': '1',
+        '12': '2',
+        '15': '3',
+        '17': '4',
+        '20': '5',
+        '30': '6',
+        '40': '7',
+        '60': '8',
+        '80': '9',
+        '160': '10'
+}
+
+vlcd = {
+        'STA': '-',
+        'PTT': '-',
+        'BND': '-',
+        'VLT': '-',
+        'PEP': '-',
+        'AVG': '-',
+        'SWR': '-',
+        'TMP': '-'
+}
+
+# sends a command and an optional parameter to the
+# Hardrock-50 via the serial interface
+def send_command(cmd, param):
+    ser = serial.Serial(serial_port, baud, timeout=1)
+    command = cmd + param + ';'
+    ser.write(str.encode(command))
+    ser.close()
+
+# Executed two commands vie the serial interface,
+# parsed the result ad polulates a dict with the
+# collected information
+def get_info():
+    ser = serial.Serial(serial_port, baud, timeout=1)
+    ser.write(b'HRRX;')
+    time.sleep(0.5)
+    res = ser.readline().decode("utf-8").rstrip().replace(';', '').split(',')
+    vlcd['STA'] = res[0]
+    vlcd['PTT'] = res[1]
+    vlcd['BND'] = res[2]
+    vlcd['TMP'] = res[3]
+    vlcd['VLT'] = res[4]
+    ser.write(b'HRMX;')
+    time.sleep(0.5)
+    res = ser.readline().decode("utf-8").rstrip().split()
+    vlcd['PEP'] = res[1][1:]
+    vlcd['AVG'] = res[2][1:]
+    if  res[3][1:] != "0":
+        vlcd['SWR'] = res[3][1:2] + "." + res[3][2:3]
+    ser.close()
+
+
+def main(argv):
+    try:
+        opts, args = getopt.getopt(argv,"hb:t",["band=","tune="])
+    except getopt.GetoptError:
+        print("hr50ctl.py -b <band> -t <1|0>")
+        sys.exit(2)
+    for opt, arg in opts:
+        if opt == '-h':
+            print("hr50ctl.py -b <band> -t <1|0>")
+            sys.exit()
+        elif opt in ("-b", "--band"):
+            if arg in bands:
+                # change the band
+                send_command("HRBN",bands[arg])
+        elif opt in ("-t", "--tune"):
+            if arg == "1":
+                # let the HR50 know that it should retunr
+                send_command("HRTU1","")
+
+    # query all desired info from the HR50
+    get_info()
+
+    # print info to stdout
+    table = PrettyTable(['1', '2', '3', '4'])
+    table.add_row([
+        "STA: " + vlcd["STA"],
+        "PTT: " + vlcd["PTT"],
+        "BND: " + vlcd["BND"],
+        "VLT: " + vlcd["VLT"]])
+    table.add_row([
+        "PEP: " + vlcd["PEP"],
+        "AVG: " + vlcd["AVG"],
+        "SWR: " + vlcd["SWR"],
+        "TMP: " + vlcd["TMP"]])
+    table.align = "l"
+    table.header = False
+    print(table)
+
+if __name__ == "__main__":
+   main(sys.argv[1:])