Index: firmware/App/DDCommon.h
===================================================================
diff -u -r57dd20557f066bf5d790ce25dd11c97bb93e3cde -r597c1b8b790357bdcacb3a50ae4b5e4278ba7a88
--- firmware/App/DDCommon.h	(.../DDCommon.h)	(revision 57dd20557f066bf5d790ce25dd11c97bb93e3cde)
+++ firmware/App/DDCommon.h	(.../DDCommon.h)	(revision 597c1b8b790357bdcacb3a50ae4b5e4278ba7a88)
@@ -30,6 +30,9 @@
 //Uncomment the below line for new dosing pump testing
 //#define __PUMPTEST__            1
 
+//Uncomment below for PI testing
+#define __PITEST__       1
+
 // ********** development build switches **********
 
 #ifndef _RELEASE_