Distance Indicator through Ultrasonic sensor and LEDs

It is often seen in security areas that being alert is a major concern. This project is a small-scale version of my idea since my idea needs certain governmental acceptance to be implemented (if selected). 

In security areas such as base camps, an alerting system is required that can perform silent action. Use of loudspeakers is being made but this project is a better version.

Circuit Connection

It uses an ultrasonic sensor which would measure distance and even generate signals. This signal would be passed on to the controller and then executed by the LEDs on the basis of distance. Here range of distance is taken as: >30 green; <30 and >15 yellow; <15 and >0 red. (all units in cm). 

This project is affordable and can be easily set up. If an object is far away from the base camp, then a green light will power up, when the object is at a moderate distance then a yellow light will power up and if the object is very near, a red light will power up. it will alert the person on the monitoring system that now it is the time of action as maybe danger is near.

Further to add the use of loudspeaker we can easily connect such noise generating devices.

This project requires basic coding and does not have any greater issue of being hacked. Use of ultrasonic sensor makes it more suitable as we can know the exact distance of the object on serial monitor.

please refer to the video for detailed explanation