fix in CmdServer and change file name in config to .json

src/CmdServer.py

@@ -309,7 +309,7 @@ class CmdInterpreter(cmd.Cmd):
         self.__println("DO NOT FORGET TO SAVE AFTERWARDS!")
 
     def do_save(self, arg):
-        RegisterDatapoint.saveRegisterFile(self.registers, self.config.registerFile)
+        RegisterDatapoint.saveRegisterList(self.registers, self.config.registerFile)
 
     def help_save(self):
         self.__println("Usage: save")

src/Config.py

@@ -9,7 +9,7 @@ class Config(object):
         self.mqttPassword = ''
         self.cmdAddress = '127.0.0.1'
         self.cmdPort = 9999
-        self.registerFile = 'registers.pkl'
+        self.registerFile = 'registers.json'
         self.serialPort = '/dev/ttyAMA0'
         self.serialBaudRate = 9600
         self.interCommDelay = 0.025

src/registers.json

@@ -29,7 +29,7 @@
             "count": 1,
             "label": "Switches",
             "publishTopic": "Pub/Switches",
-            "scanRate": 60.0,
+            "scanRate": 0.25,
             "unit": 4,
             "updateOnly": false
         },