Index: firmware/App/Modes/SelfTests.h
===================================================================
diff -u -r125a27d5a3a116e7b7473ff180daf247270d8e57 -re4cc37257141c5227186ac6d8ca3d6c87d009042
--- firmware/App/Modes/SelfTests.h	(.../SelfTests.h)	(revision 125a27d5a3a116e7b7473ff180daf247270d8e57)
+++ firmware/App/Modes/SelfTests.h	(.../SelfTests.h)	(revision e4cc37257141c5227186ac6d8ca3d6c87d009042)
@@ -31,6 +31,20 @@
 
 // ********** public definitions **********
 
+/// Payload record structure for no cartridge self-test data broadcast message
+typedef struct
+{
+    U32 timeout;                            ///< No cartridge self-test timeout (in seconds)
+    U32 countdown;                          ///< No cartridge self-test timeout countdown (in seconds)
+} SELF_TEST_NO_CARTRIDGE_PAYLOAD_T;
+
+/// Payload record structure for dry self-test data broadcast message
+typedef struct
+{
+    U32 timeout;                            ///< Dry self-test timeout (in seconds)
+    U32 countdown;                          ///< Dry self-test timeout countdown (in seconds)
+} SELF_TEST_DRY_PAYLOAD_T;
+
 // ********** public function prototypes **********
 
 void initSelfTests( void );