Index: firmware/App/Controllers/AirPump.c
===================================================================
diff -u -r0e1203044c8a58afcb2a1d51b08d2073e4bee4a3 -r22e7af9d984aeb680b8ddb444757bf59c2e09c15
--- firmware/App/Controllers/AirPump.c	(.../AirPump.c)	(revision 0e1203044c8a58afcb2a1d51b08d2073e4bee4a3)
+++ firmware/App/Controllers/AirPump.c	(.../AirPump.c)	(revision 22e7af9d984aeb680b8ddb444757bf59c2e09c15)
@@ -35,7 +35,7 @@
 
 #define AIR_PUMP_DATA_PUB_INTERVAL          ( MS_PER_SECOND / TASK_GENERAL_INTERVAL )
 #define DATA_PUBLISH_COUNTER_START_COUNT
-#define AIR_PUMP_GPIO_PIN                   0x24
+#define AIR_PUMP_GPIO_PIN                   0x04
 
 typedef enum AirPumpMotorStates
 {