WEEK 3 (block diagram)

On this week I have been changing the block diagram from 3 ultrasonic sensors to 1 ultrasonic sensors. Moreover, I have been adding 1 Infrared sensor on the project. The function of the ultrasonic sensor is to detect the obstacle which means the end of the window frame. Then, the function of the Infrared sensor is to detect the stop line that has been placed on the surface of the window. Figure 1 and 2 show the circuit diagram before and after the change have been made. Finally, the block diagram is completely done. 

Figure 1: Block diagram (Before) 

Figure 2: Block diagram (After)