Index: HD/Buttons.py
===================================================================
diff -u -r082ea4c8b0c6a3c804453308990d0bb98a0a2156 -r0da0106eca868b9144298c60911710b3414a5837
--- HD/Buttons.py	(.../Buttons.py)	(revision 082ea4c8b0c6a3c804453308990d0bb98a0a2156)
+++ HD/Buttons.py	(.../Buttons.py)	(revision 0da0106eca868b9144298c60911710b3414a5837)
@@ -1,8 +1,7 @@
 from DialIn.CoreCANProtocol import (DenaliMessage,
                                     DenaliChannels)
 
-from .utils import integer2ByteArray
-from .HemodialysisDevice import HD
+from utils import integer_to_byte_array, RESET
 
 
 class HDButtons:
@@ -12,7 +11,7 @@
     \brief Hemodialysis Device (HD) Dialin API sub-class for button related commands.
     """
 
-    # Buttons message IDs
+    # buttons message IDs
     MSG_ID_HD_OFF_BUTTON_OVERRIDE = 0x8002
     MSG_ID_HD_STOP_BUTTON_OVERRIDE = 0x8003
 
@@ -22,6 +21,7 @@
 
         \param can_interface: the denali can interface object
         """
+
         self.can_interface = can_interface
 
     def cmd_off_button_override(self, reset, state):
@@ -33,8 +33,8 @@
         \returns 1 if successful, zero otherwise
         """
 
-        rst = integer2ByteArray(reset)
-        sta = integer2ByteArray(state)
+        rst = integer_to_byte_array(reset)
+        sta = integer_to_byte_array(state)
         payload = rst + sta
 
         message = DenaliMessage.build_message(channel_id=DenaliChannels.dialin_to_hd_ch_id,
@@ -48,7 +48,7 @@
 
         # If there is content...
         if received_message is not None:
-            if reset == HD.RESET:
+            if reset == RESET:
                 str_res = "reset back to normal"
             else:
                 str_res = ("pressed" if state != 0 else "released")
@@ -70,8 +70,8 @@
         \returns 1 if successful, zero otherwise
         """
 
-        rst = integer2ByteArray(reset)
-        sta = integer2ByteArray(state)
+        rst = integer_to_byte_array(reset)
+        sta = integer_to_byte_array(state)
         payload = rst + sta
 
         message = DenaliMessage.build_message(channel_id=DenaliChannels.dialin_to_hd_ch_id,
@@ -85,7 +85,7 @@
 
         # If there is content...
         if received_message is not None:
-            if reset == HD.RESET:
+            if reset == RESET:
                 str_res = "reset back to normal"
             else:
                 str_res = ("pressed" if state != 0 else "released")