-#define PS_B_STATUS_ERROR -2
-#define PS_B_STATUS_IDLE -1
-#define PS_B_STATUS_WAITING 0
-#define PS_B_STATUS_RECEIVED 1
-#define PS_B_STATUS_UPDATING 2
+const float PS_B_STATUS_ERROR = -2;
+const float PS_B_STATUS_IDLE = -1;
+const float PS_B_STATUS_WAITING = 0;
+const float PS_B_STATUS_RECEIVED = 1;
+const float PS_B_STATUS_UPDATING = 2;