The aim of this project is to distance-measuring system based on ultrasonic sound utilizing the ultralow-power microcontroller. By measuring the distance with ultrasonic sensor, it can be used for obstacle detection. It senses the presence of obstacles in its path. The obstacle detection mechanism is done by an ultrasonic sensor that makes uses of ultrasonic waves to find the presence of an obstacle.   This consists of a Microcontroller based control system and Ultrasonic Sensor. The system transmits a burst of ultrasonic sound waves towards the subject and then receives the corresponding echo. The time taken for the ultrasonic burst to travel the distance from the system to the subject and back to the system is accurately measured by the MSP430.The minimum distance that this system can measure is 2cm and is limited by the transmitter’s transducer settling time. The Microcontrollers used in the project are programmed using Embedded C language.  

The objectives of the project include:  

1. Distance-measuring system

  The project focuses on the following advancements:  

1. Arduino UNO Microcontroller
2. Interfacing ultrasonic sensor to Microcontroller.
3. Embedded C programming.

  The major building blocks of this project are:  

1. Regulated Power Supply
2. Micro Controller
3. Ultrasonic Sensor.
4. LED indicators.

  Software’s used:    

1. Arduino IDE for compiling and dumping code into Microcontroller
2. Express SCH for Circuit design.

 

Block diagram:

video: