In this project we are using Arduino and ultrasonic sensor to broadcast information to a cell phone via bluetooth. It senses objects with the help of Ultrasonic Sensor and hence can work even during night times. Ultrasonic sensor is attached with a servo motor which can be either be set to rotate automatically to scan the area or can be rotated manually using our Mobile app, so that we can focus the ultrasonic sensor in our required direction and sense the objects present over there. The information sensed by the sensor will be broadcasted to the cell phone using Bluetooth Module so it will work like a Sonar or a Radar.
If you want to make this project, you can find here the detailed DIY instructions with required circuit diagrams and source codes.
To see the project in working, check out the youtube video below:
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