diff --git a/tools/simulator_base.hpp b/tools/simulator_base.hpp
index b452b3a..5e79c91 100644
--- a/tools/simulator_base.hpp
+++ b/tools/simulator_base.hpp
@@ -6,20 +6,69 @@
 class Simulator_base {
 
     public:
+        /**
+         * @brief Construct a new Simulator_base object
+         * 
+         * @param name The name of the simulator
+         * @param interval The interval of the timer (default is 100ms)
+         */
         Simulator_base(std::string name, std::chrono::milliseconds interval = std::chrono::milliseconds(100));
 
+        /**
+         * @brief Returns the name of the simulator
+         * 
+         * @return std::string The name of the simulator
+         */
         std::string name() const;
 
+        /**
+         * @brief This function checks if the UI id is unique
+         *         (hence not already pushed in with the add_UI_item function)
+         * 
+         * @param id The id to check
+         * @return true The id is unique
+         * @return false The id is already in use
+         */
         bool is_ui_id_unique(std::string id) const;
 
+        /**
+         * @brief This function adds a UI item to the simulator
+         *        only if the id is unique
+         *        Use this function only in the constructor of the simulator
+         * 
+         * @param item The UI item to add
+         */
         void add_UI_item(UI_item* item);
+        /**
+         * @brief Get the UI items object
+         * 
+         * @return json The UI items in json format
+         */
         json get_UI_items() const;
 
+        /**
+         * @brief Get the UI item object by id
+         * 
+         * @param id The id of the UI item
+         * @return UI_item* A pointer to the UI item object
+         */
         UI_item* get_UI_item(std::string id) const;
 
+        /**
+         * @brief Run the simulator
+         */
         void run();
+
+        /**
+         * @brief Stop the simulator
+         */
         void stop();
 
+        /**
+         * @brief Timer function
+         *       This function is called every time the timer ticks
+         *       Override this function in the derived class
+         */
         virtual void timer() {};
     protected:
         std::string p_name;