Merge branch 'rf_experiment' into rf_experiment_v0.9

# Conflicts:
#	README.md
#	broadlink/__init__.py
#	cli/broadlink_cli

cli/broadlink_cli

@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 import broadlink
 import sys
@@ -79,7 +79,8 @@ parser.add_argument("--switch", action="store_true", help="switch state from on
 parser.add_argument("--send", action="store_true", help="send command")
 parser.add_argument("--sensors", action="store_true", help="check all sensors")
 parser.add_argument("--learn", action="store_true", help="learn command")
-parser.add_argument("--learnfile", help="learn command and save to specified file")
+parser.add_argument("--rfscanlearn", action="store_true", help="rf scan learning")
+parser.add_argument("--learnfile", help="save learned command to a specified file")
 parser.add_argument("--durations", action="store_true", help="use durations in micro seconds instead of the Broadlink format")
 parser.add_argument("--convert", action="store_true", help="convert input data to durations")
 parser.add_argument("data", nargs='*', help="Data to send or convert")
@@ -102,11 +103,11 @@ if args.host or args.device:
 if args.convert:
     data = bytearray.fromhex(''.join(args.data))
     durations = to_microseconds(data)
-    print format_durations(durations)
+    print(format_durations(durations))
 if args.temperature:
-    print dev.check_temperature()
+    print(dev.check_temperature())
 if args.energy:
-    print dev.get_energy()
+    print(dev.get_energy())
 if args.sensors:
     try:
         data = dev.check_sensors()
@@ -114,15 +115,15 @@ if args.sensors:
         data = {}
         data['temperature'] =  dev.check_temperature()
     for key in data:
-        print "{} {}".format(key, data[key])
+        print("{} {}".format(key, data[key]))
 if args.send:
     data = durations_to_broadlink(parse_durations(' '.join(args.data))) \
         if args.durations else bytearray.fromhex(''.join(args.data))
     dev.send_data(data)
-if args.learn or args.learnfile:
+if args.learn:
     dev.enter_learning()
     data = None
-    print "Learning..."
+    print("Learning...")
     timeout = 30
     while (data is None) and (timeout > 0):
         time.sleep(2)
@@ -133,51 +134,96 @@ if args.learn or args.learnfile:
             if args.durations \
             else ''.join(format(x, '02x') for x in bytearray(data))
         if args.learn:
-            print learned
+            print(learned)
         if args.learnfile:
-            print "Saving to {}".format(args.learnfile)
+            print("Saving to {}".format(args.learnfile))
             with open(args.learnfile, "w") as text_file:
                 text_file.write(learned)
     else:
-        print "No data received..."
+        print("No data received...")
 if args.check:
     if dev.check_power():
-        print '* ON *'
+        print('* ON *')
     else:
-        print '* OFF *'
+        print('* OFF *')
 if args.checknl:
     if dev.check_nightlight():
-        print '* ON *'
+        print('* ON *')
     else:
-        print '* OFF *'
+        print('* OFF *')
 if args.turnon:
     dev.set_power(True)
     if dev.check_power():
-        print '== Turned * ON * =='
+        print('== Turned * ON * ==')
     else:
-        print '!! Still OFF !!'
+        print('!! Still OFF !!')
 if args.turnoff:
     dev.set_power(False)
     if dev.check_power():
-        print '!! Still ON !!'
+        print('!! Still ON !!')
     else:
-        print '== Turned * OFF * =='
+        print('== Turned * OFF * ==')
 if args.turnnlon:
     dev.set_nightlight(True)
     if dev.check_nightlight():
-        print '== Turned * ON * =='
+        print('== Turned * ON * ==')
     else:
-        print '!! Still OFF !!'
+        print('!! Still OFF !!')
 if args.turnnloff:
     dev.set_nightlight(False)
     if dev.check_nightlight():
-        print '!! Still ON !!'
+        print('!! Still ON !!')
     else:
-        print '== Turned * OFF * =='
+        print('== Turned * OFF * ==')
 if args.switch:
     if dev.check_power():
         dev.set_power(False)
-        print '* Switch to OFF *'
+        print('* Switch to OFF *')
     else:
         dev.set_power(True)
-        print '* Switch to ON *'
+        print('* Switch to ON *')
+if args.rfscanlearn:
+    dev.sweep_frequency()
+    print("Learning RF Frequency, press and hold the button to learn...")
+
+    timeout = 20
+
+    while (not dev.check_frequency()) and (timeout > 0):
+        time.sleep(1)
+        timeout -= 1
+
+    if timeout <= 0:
+        print("RF Frequency not found")
+        dev.cancel_sweep_frequency()
+        exit(1)
+
+    print("Found RF Frequency - 1 of 2!")
+    print("You can now let go of the button")
+
+    input("Press enter to continue...")
+
+    print("To complete learning, single press the button you want to learn")
+
+    dev.find_rf_packet()
+
+    data = None
+    timeout = 20
+
+    while (data is None) and (timeout > 0):
+        time.sleep(1)
+        timeout -= 1
+        data = dev.check_data()
+
+    if data:
+        print("Found RF Frequency - 2 of 2!")
+        learned = format_durations(to_microseconds(bytearray(data))) \
+            if args.durations \
+            else ''.join(format(x, '02x') for x in bytearray(data))
+        if args.learnfile is None:
+            print(learned)
+        if args.learnfile is not None:
+            print("Saving to {}".format(args.learnfile))
+            with open(args.learnfile, "w") as text_file:
+                text_file.write(learned)
+    else:
+        print("No data received...")