diff --git a/PyMata/pymata.py b/PyMata/pymata.py
index 7bcb06e..0b36a9c 100644
--- a/PyMata/pymata.py
+++ b/PyMata/pymata.py
@@ -121,7 +121,7 @@ def __init__(self, port_id='/dev/ttyACM0', bluetooth=True, verbose=True):
 
             if self.verbose:
                 print("\nPython Version %s" % sys.version)
-                print('\nPyMata version 2.12  Copyright(C) 2013-16 Alan Yorinks    All rights reserved.')
+                print('\nPyMata version 2.13  Copyright(C) 2013-16 Alan Yorinks    All rights reserved.')
 
             # Instantiate the serial support class
             self.transport = PyMataSerial(port_id, self.command_deque)
diff --git a/PyMata/pymata_command_handler.py b/PyMata/pymata_command_handler.py
index bab2de6..2b8d465 100644
--- a/PyMata/pymata_command_handler.py
+++ b/PyMata/pymata_command_handler.py
@@ -54,12 +54,12 @@ class PyMataCommandHandler(threading.Thread):
     REPORT_VERSION = 0xF9  # report protocol version
 
     # user defined SYSEX commands
-    ENCODER_CONFIG = 0x20  # create and enable encoder object
+    ENCODER_CONFIG = 0x60  # create and enable encoder object
     TONE_PLAY = 0x5F  # play a tone at a specified frequency and duration
-    SONAR_CONFIG = 0x60  # configure pins to control a Ping type sonar distance device
+    SONAR_CONFIG = 0x62  # configure pins to control a Ping type sonar distance device
 
-    ENCODER_DATA = 0x21  # current encoder position data
-    SONAR_DATA = 0x61  # distance data returned
+    ENCODER_DATA = 0x61  # current encoder position data
+    SONAR_DATA = 0x63  # distance data returned
 
     SERVO_CONFIG = 0x70  # set servo pin and max and min angles
     STRING_DATA = 0x71  # a string message with 14-bits per char
diff --git a/setup.py b/setup.py
index 4f6b118..7ebe8de 100644
--- a/setup.py
+++ b/setup.py
@@ -5,8 +5,8 @@
 setup(
     name='PyMata',
     packages=['PyMata'],
-    install_requires=['pyserial>=2.7'],
-    version='2.12',
+    install_requires=['pyserial==2.7'],
+    version='2.13',
     description="A Python Protocol Abstraction Library For Arduino Firmata",
     author='Alan Yorinks',
     author_email='MisterYsLab@gmail.com',