Consider a back-up obstacle warning system (similar to that found in some vehicles) that just uses one ultrasonic distance sensor. Assume that the sensor provides a 0 to 10 VDC analog voltage output...

Consider a back-up obstacle warning system (similar to that found in some vehicles) that just uses one ultrasonic distance sensor. Assume that the sensor provides a 0 to 10 VDC analog voltage output that is proportional to the distance of the object from the sensor. The sensor output is zero when the object is at the near limit setting of the sensor. Design a circuit that can process the output of this sensor to inform the user of the closeness of the object to the sensor. You can use multiple LEDs or a buzzer as an indication of the output. Make any reasonable assumptions.