Based on ESP32, design a smart lamp switch (220V, 100w) specified as follows: There is a local push button to set the lamp ON. The lamp is reset to OFF after a preset time whose default value is 10 seconds. The switch has an android application that allows the user to change the preset time from 1 to 100 seconds. a) Sketch a detailed schematic for the circuit. b) Write the Arduino software program with minimum instructions c) Write the C# code of the android application and its user interface