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The device takes advantage of its ultrasonic sensors to calculate the speed of the vehicle. it must be known that a single sensor can do the job, but two sensors were much easier to operate with during the implementation of this project. After that, the team have used an amplifier to compare a constant single from a battery that can be changed using a nob, or the potentiometer from the simulation software Every Circuit. It will present the speed limit of the road that this device is currently functioning at. By acquiring both inputs, an amplifier is used to calculate the deference between the two signals, and compare both signals to each other. A comparator will serve the function to identify whether the speed of the car has either exceeded the legal limit or not. If the value of the voltage value from the speed sensor have exceeded the value of the constant voltage, the comparator will output a signal to a red LED light and an alarm system including a speaker. If not, the comparator will not output anything.
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