mnoved update delay to base class and make

it setAble

include/menuControl.h

@@ -45,7 +45,17 @@ class MenuControl {
         /**
          * @brief can be called to update shown data
          */
-        virtual void update() {}
+        virtual void update() {
+            if (this->updateDelay == 0)
+                return;
+
+            if (millis() - this->lastUpdateMillis < this->updateDelay) {
+                return;
+            }
+
+            this->printMenu();
+            this->lastMillis = millis();
+        }
         
         virtual void printMenu() = 0;
 
@@ -69,10 +79,23 @@ class MenuControl {
          */
         void setLcd(DisplayWrapper* lcd) { this->lcd = lcd; }
 
+        /**
+         * @brief Set the time between each new print to the display
+         * 
+         * If the delay is zero, no updates will be made.
+         * The delay is by default zero.
+         * 
+         * @param delay time in milliseconds
+         */
+        void setUpdateDelay(uint16_t delay = 0) { this->updateDelay = delay; }
+
     protected:
         void print(String lineOne, String lineTwo) const;
 
         MenuControl* parentMenu = nullptr;
         DisplayWrapper* lcd = nullptr;
+
+        uint16_t updateDelay = 0;
+        uint32_t lastUpdateMillis = 0;
 };
 #endif // MENU_CONTROLL_H