The cook pot stirrer is a stirring mechanism incorporated into a lid that covers a cooking vessel. The method includes displaying guide information when entering a user key pad setting mode, determining a designation range for the user key pad according to a user interaction inputted based on the guide information, computing a key arrangement of the user key pad in response to the determined range, and configuring the user key pad according to the computed key arrangement. A high-frequency module device is thus manufactured. A flash memory device stores a zone management map. The comparator decides whether to increase or decrease the scanning speed according to the data access volume and also outputs decision data to the driving device. An overpass lead is formed between the inner turn of the coil and one of the bottom capacitor plate and the top capacitor plate.