Write a case study report based on the following question: There are various models of microcontrollers in the market today. Each microcontroller is designed for an embedded task with different characteristics in term of instruction set, number and type of 1/0 pins, timer, type of clock oscillator, organization and type of memories, size of memories, processing architecture and price. You are required to choose the suitable microcontroller between PIC16F84A and PIC16F877A for a drink vending machine application, such as shown in Figure 1. Compare both of the microcontrollers to decide the suitable selection and explain the reasons for your selection, Your explanation should not only include descriptions of the microcontroller characteristics but must include critical reviews on selection menu, indicators and DC motors as well as the coin and note acceptors for the machine, for example, in terms of number and designation of microcontroller input-output ports. State your assumptions, if necessary. The answers are limited to 4 pages and using hand-writing only Figure 1 Drink vending machine Write a case study report based on the following question: There are various models of microcontrollers in the market today. Each microcontroller is designed for an embedded task with different characteristics in term of instruction set, number and type of 1/0 pins, timer, type of clock oscillator, organization and type of memories, size of memories, processing architecture and price. You are required to choose the suitable microcontroller between PIC16F84A and PIC16F877A for a drink vending machine application, such as shown in Figure 1. Compare both of the microcontrollers to decide the suitable selection and explain the reasons for your selection, Your explanation should not only include descriptions of the microcontroller characteristics but must include critical reviews on selection menu, indicators and DC motors as well as the coin and note acceptors for the machine, for example, in terms of number and designation of microcontroller input-output ports. State your assumptions, if necessary. The answers are limited to 4 pages and using hand-writing only Figure 1 Drink vending machine