Index: dialin/ui/hd_simulator.py
===================================================================
diff -u -rbf3f26db920b3ec4d8d11ad6a9efbffa0b5d53b0 -r3ed79c5b9910a16ae58402c7380a4d3375d1d0fc
--- dialin/ui/hd_simulator.py	(.../hd_simulator.py)	(revision bf3f26db920b3ec4d8d11ad6a9efbffa0b5d53b0)
+++ dialin/ui/hd_simulator.py	(.../hd_simulator.py)	(revision 3ed79c5b9910a16ae58402c7380a4d3375d1d0fc)
@@ -28,7 +28,7 @@
                              DenaliCanMessenger,
                              DenaliChannels)
 from ..utils.base import _AbstractSubSystem, _LogManager
-from ..utils.conversions import integer_to_bytearray, float_to_bytearray
+from ..utils.conversions import integer_to_bytearray, float_to_bytearray, byte_to_bytearray, short_to_bytearray
 
 YES = 1
 NO = 0
@@ -1709,9 +1709,9 @@
 
         self.can_interface.send(message, 0)
 
-    def cmd_send_acccelerometer_hd_data(self, vX, vY, vZ, vXMax, vYMax, vZMax, vXTilt, vYTilt, vZTilt ):
+    def cmd_send_accelerometer_hd_data(self, vX, vY, vZ, vXMax, vYMax, vZMax, vXTilt, vYTilt, vZTilt ):
         """
-        the acccelerometer hd data message method
+        the accelerometer hd data message method
         | MSG  | CAN ID | Box | Type   | Ack | Src | Dst | Description           |
         |:----:|:------:|:---:|:------:|:---:|:---:|:---:|:-----------:          |
         |0x3300| 0x040  | 7   | 1Hz    | N   | HD  | UI  | HD Accelerometer data |
@@ -1756,9 +1756,9 @@
 
         self.can_interface.send(message, 0)
 
-    def cmd_send_acccelerometer_dg_data(self, vX, vY, vZ, vXMax, vYMax, vZMax, vXTilt, vYTilt, vZTilt ):
+    def cmd_send_accelerometer_dg_data(self, vX, vY, vZ, vXMax, vYMax, vZMax, vXTilt, vYTilt, vZTilt ):
         """
-        the acccelerometer dg data message method
+        the accelerometer dg data message method
         | MSG  | CAN ID | Box | Type   | Ack | Src | Dst | Description           |
         |:----:|:------:|:---:|:------:|:---:|:---:|:---:|:-----------:          |
         |0x3400| 0x080  | 8   | 1Hz    | N   | HD  | UI  | DG Accelerometer data |
@@ -1817,14 +1817,14 @@
         :return: None
         """
 
-        payload  = integer_to_bytearray(vMajor)
-        payload  += integer_to_bytearray(vMinor)
-        payload  += integer_to_bytearray(vMicro)
-        payload  += integer_to_bytearray(vBuild)
-        payload  += integer_to_bytearray(vFPGA_id)
-        payload  += integer_to_bytearray(vFPGA_Major)
-        payload  += integer_to_bytearray(vFPGA_Minor)
-        payload  += integer_to_bytearray(vFPGA_Lab)
+        payload  = byte_to_bytearray(vMajor)
+        payload  += byte_to_bytearray(vMinor)
+        payload  += byte_to_bytearray(vMicro)
+        payload  += short_to_bytearray(vBuild)
+        payload  += byte_to_bytearray(vFPGA_id)
+        payload  += byte_to_bytearray(vFPGA_Major)
+        payload  += byte_to_bytearray(vFPGA_Minor)
+        payload  += byte_to_bytearray(vFPGA_Lab)
 
         message = DenaliMessage.build_message(channel_id=DenaliChannels.hd_to_ui_ch_id,
                                               message_id=MsgIds.MSG_ID_HD_VERSION.value,
@@ -1846,14 +1846,14 @@
         :return: None
         """
 
-        payload  = integer_to_bytearray(vMajor)
-        payload  += integer_to_bytearray(vMinor)
-        payload  += integer_to_bytearray(vMicro)
-        payload  += integer_to_bytearray(vBuild)
-        payload  += integer_to_bytearray(vFPGA_id)
-        payload  += integer_to_bytearray(vFPGA_Major)
-        payload  += integer_to_bytearray(vFPGA_Minor)
-        payload  += integer_to_bytearray(vFPGA_Lab)
+        payload  = byte_to_bytearray(vMajor)
+        payload  += byte_to_bytearray(vMinor)
+        payload  += byte_to_bytearray(vMicro)
+        payload  += short_to_bytearray(vBuild)
+        payload  += byte_to_bytearray(vFPGA_id)
+        payload  += byte_to_bytearray(vFPGA_Major)
+        payload  += byte_to_bytearray(vFPGA_Minor)
+        payload  += byte_to_bytearray(vFPGA_Lab)
 
         message = DenaliMessage.build_message(channel_id=DenaliChannels.dg_to_ui_ch_id,
                                               message_id=MsgIds.MSG_ID_DG_VERSION.value,
Index: dialin/utils/conversions.py
===================================================================
diff -u -r91dc90bd009bdbf5621dcaa1bc12ab3d691673f7 -r3ed79c5b9910a16ae58402c7380a4d3375d1d0fc
--- dialin/utils/conversions.py	(.../conversions.py)	(revision 91dc90bd009bdbf5621dcaa1bc12ab3d691673f7)
+++ dialin/utils/conversions.py	(.../conversions.py)	(revision 3ed79c5b9910a16ae58402c7380a4d3375d1d0fc)
@@ -16,6 +16,26 @@
 import struct
 
 
+def byte_to_bytearray(val):
+    """
+    Converts a byte value into a byte array (little endian)
+
+    @param val: (int) integer to convert to byte array
+    @return: byte array
+    """
+    return struct.pack("<b", val)
+
+
+def short_to_bytearray(val):
+    """
+    Converts a short integer (2 bytes) value into a byte array (little endian)
+
+    @param val: (int) integer to convert to byte array
+    @return: byte array
+    """
+    return struct.pack("<h", val)
+
+
 def integer_to_bytearray(val):
     """
     Converts an integer value into a byte array (little endian)