diff --git a/right/src/merge_sensor.h b/right/src/merge_sensor.h
index 4f8858f..12f75e5 100644
--- a/right/src/merge_sensor.h
+++ b/right/src/merge_sensor.h
@@ -7,12 +7,21 @@
 
 // Macros:
 
+#if UHK_PCB_MAJOR_VERSION == 7
+    #define MERGE_SENSOR_GPIO        GPIOB
+    #define MERGE_SENSOR_PORT        PORTB
+    #define MERGE_SENSOR_CLOCK       kCLOCK_PortB
+    #define MERGE_SENSOR_PIN         3
+    #define MERGE_SENSOR_IRQ         PORTB_IRQn
+    #define MERGE_SENSOR_IRQ_HANDLER PORTB_IRQHandler
+#else
     #define MERGE_SENSOR_GPIO        GPIOB
     #define MERGE_SENSOR_PORT        PORTB
     #define MERGE_SENSOR_CLOCK       kCLOCK_PortB
     #define MERGE_SENSOR_PIN         2
     #define MERGE_SENSOR_IRQ         PORTB_IRQn
     #define MERGE_SENSOR_IRQ_HANDLER PORTB_IRQHandler
+#endif
 
     #define MERGE_SENSOR_IS_MERGED !GPIO_ReadPinInput(MERGE_SENSOR_GPIO, MERGE_SENSOR_PIN)