diff --git a/components/ratgdo/ratgdo.cpp b/components/ratgdo/ratgdo.cpp
index ce36b2d..145f368 100644
--- a/components/ratgdo/ratgdo.cpp
+++ b/components/ratgdo/ratgdo.cpp
@@ -639,5 +639,11 @@ namespace ratgdo {
         this->pref_.save(&this->rollingCodeCounter);
     }
 
+    void RATGDOComponent::register_child(RATGDOComponent* obj)
+    {
+        this->children_.push_back(obj);
+        obj->set_parent(this);
+    }
+
 } // namespace ratgdo
 } // namespace esphome
diff --git a/components/ratgdo/ratgdo.h b/components/ratgdo/ratgdo.h
index 283619a..8776dc0 100644
--- a/components/ratgdo/ratgdo.h
+++ b/components/ratgdo/ratgdo.h
@@ -160,9 +160,12 @@ namespace ratgdo {
         void statusUpdateLoop();
         void readRollingCode(uint8_t& door, uint8_t& light, uint8_t& lock, uint8_t& motion, uint8_t& obstruction);
         void sendCommand(Commands command);
+        /** Register a child component. */
+        void register_child(RATGDOComponent* obj);
 
     protected:
         ESPPreferenceObject pref_;
+        std::vector<RATGDOComponent*> children_;
         RATGDOStore store_ {};
 
         InternalGPIOPin* output_gdo_pin_;