In automotive vehicles, windows can move up and down. But when rain occurs the driver may take time to close the window. In some cases, however, the vehicle may be left unattended with one or more windows opened. The windows can also be left opened when the car is parked. Sometimes the weather may change for the worse. As a result, rain may enter the vehicle through the open windows. In some cases, the rain may cause damage to the vehicle interior and/or the contents within the vehicle. Thus, you are required design and implementation of a rain sensing system based on the following features of the detection system. Rolls up windows in unattended vehicle when it begins to rain. Rolls up windows only activated when car ignition is off. (Ignition output sensor is wired will be an active LOW, is HIGH when the car ignition is ON ) Window stops if obstruction in path of window. (Digital output sensor is wired will be an active HIGH when obstruct is detected) Close glass automatically once rainfall is detected. (Digital rain sensor is wired will be an active HIGH) No rainfall Car windows open Car with windows opened Rainfall Car windows closed Car with windows closed when rainfall detected a) Draw the schematic diagram of the raspberry pi pins are interfaced to the sensors and the actuator based on the operation in question 4. Use block diagram to represent the sensors. (10 marks) b) Write a program in Python to perform the operation as shown in question 4(a).