Create radon_reader.py

radon_reader.py

@@ -0,0 +1,75 @@
+#!/usr/bin/python
+
+""" radon_reader.py: RadonEye RD200 (Bluetooth/BLE) Reader """
+
+__progname__    = "RadonEye RD200 (Bluetooth/BLE) Reader"
+__version__     = "0.2"
+__author__      = "Carlos Andre"
+__email__       = "candrecn at hotmail dot com"
+__date__        = "2019-07-17"
+
+import argparse, struct, time, re
+
+from bluepy import btle
+from time import sleep
+
+parser = argparse.ArgumentParser(formatter_class=argparse.RawDescriptionHelpFormatter,description=__progname__)
+parser.add_argument('-a','--address',help='Bluetooth Address (AA:BB:CC:DD:EE:FF format)',required=True)
+parser.add_argument('-b','--becquerel',action='store_true',help='Display radon value in Becquerel (Bq/m^3) unit', required=False)
+parser.add_argument('-v','--verbose',action='store_true',help='Verbose mode', required=False)
+parser.add_argument('-s','--silent',action='store_true',help='Only output radon value (without unit and timestamp)', required=False)
+args = parser.parse_args()
+
+if not re.match("[0-9a-f]{2}(:?)[0-9a-f]{2}(\\1[0-9a-f]{2}){4}$", args.address.lower()):
+    parser.print_help()
+    quit()
+
+def GetRadonValue():
+    if args.verbose and not args.silent:
+        print ("Connecting...")
+    DevBT = btle.Peripheral(args.address.upper(), "random")
+    RadonEye = btle.UUID("00001523-1212-efde-1523-785feabcd123")
+    RadonEyeService = DevBT.getServiceByUUID(RadonEye)
+
+    # Write 0x50 to 00001524-1212-efde-1523-785feabcd123
+    if args.verbose and not args.silent:
+        print ("Writing...")
+    uuidWrite  = btle.UUID("00001524-1212-efde-1523-785feabcd123")
+    RadonEyeWrite = RadonEyeService.getCharacteristics(uuidWrite)[0]
+    RadonEyeWrite.write(bytes("\x50"))
+
+    # Read from 2nd to 6th byte of 00001525-1212-efde-1523-785feabcd123
+    if args.verbose and not args.silent:
+        print ("Reading...")
+    uuidRead  = btle.UUID("00001525-1212-efde-1523-785feabcd123")
+    RadonEyeValue = RadonEyeService.getCharacteristics(uuidRead)[0]
+    RadonValue = RadonEyeValue.read()
+    RadonValue = struct.unpack('<f',RadonValue[2:6])[0]
+
+    if args.becquerel:
+        Unit="Bq/m^3"
+        RadonValue = ( RadonValue * 37 )
+    else:
+        Unit="pCi/L"
+
+    if args.silent:
+        print ("%0.2f" % (RadonValue))
+    else: 
+        print ("%s - %s - Radon Value: %0.2f %s" % (time.strftime("%Y-%m-%d [%H:%M:%S]"),args.address.upper(),RadonValue,Unit))
+
+try:
+    GetRadonValue()
+except:
+    for i in range(1,4):
+        try:
+            if args.verbose and not args.silent:
+                print ("Connection failed, trying again (%s)..." % i)
+            sleep(5)
+            GetRadonValue()
+        except:
+            if i < 3:
+                continue
+            else:
+                print ("Connection failed.")
+        break
+