diff --git a/include/Global.h b/include/Global.h
index 6c873eb6..558ace8f 100644
--- a/include/Global.h
+++ b/include/Global.h
@@ -139,4 +139,6 @@ extern bool _time_isTrust;
 
 // extern DynamicJsonDocument settingsFlashJsonDoc;
 // extern DynamicJsonDocument paramsFlashJsonDoc;
-// extern DynamicJsonDocument paramsHeapJsonDoc;
\ No newline at end of file
+// extern DynamicJsonDocument paramsHeapJsonDoc;
+
+void scanI2C();
\ No newline at end of file