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Scenario: Consider you are technician EWA-Bahrain. Your manager requires you to design, develop, construct and commission an embedded system for conveyer belt control with variable speed DC motor. This system will be used for packaging unit as shown in the figure 1. proximity sensor product Conveyer belt pully DC motor Figure 1. Conveyer belt The concept block diagram is given below in figure 2. speed control source LCD display Controller ESD DC motor proximity sensor 0 Temperature sensor LED Figure 2: Concept block diagram The Project Design Specifications of the system is given below. Trainee number Project Design Specifications 20200741 A voltage source that varies between -2V to +2V is used to control speed of a DC motor. Appropriate signal conditioning is to be used. You need to drive a DC motor whose speed is proportional to the control voltage. You can fix minimum and maximum speed. The motor should stop for 7 Seconds if the proximity sensor is active. An emergency shut down push button is necessary to ensure safe operation. It will be installed in the workshop and proper isolation is to be given. An LED will glow when the input is above 1v. LM35 temperature sensor is used is used to stop the DC motor if the temperature is more than 30 degrees. You need to display the temperature using an LCD display
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