Imagine that you have been appointed as a System Design Engineer in one of the popular soap manufacturing companies in India. Your job is to create an automated conveyor belt system for your company which should satisfy the following needs. (i) The conveyor belt system should run only when soap is present on it. (ii) There should be a system to check for the presence of soap in the packed soap box. What kind of sensors do you need and how do you select the device (microcontroller/ microprocessor) for the above specifications? Justify your solution for this application using suitable schematic diagram with pin details.