Ultrasonic Distance Indicator On Lcd Display Using HC-SR04

Ultrasonic Distance Indicator On Lcd Display Using  HC-SR04 8051 Based

Ultrasonic distance indicating system using 8051 microcontroller

If u want to measuring a distance usually we are using measuring tape or another tools but this kind of tools having limitations and manuals error and there are many places like in vehicles where we need to detect a particular distance to prevent from any accident. There areseveral ways to measure distance without human contact like infrared ray, radar, laser but they are very expensive, hence the ultrasound waves can be used for applications in industries/vehicles without hindering human activity

So here we introduce Ultrasonic distance indicating system  which detects any object ahead of the ultrasonic transducer by using an emitter for sending 40 kHz sound wave; and a detector that detects this 40 kHz sound wave and sends the signal back to the microcontroller. Which use in reverse car parking to avoid damage of car

Block diagram:-

In the system we used ultrasonic sensors to measure sensors byusing pulse echo and phase measurement method and an ultrasonic module is interfaced to the microcontroller, and an ultrasonic transducer comprising of a transmitter and receiver  and it will transmitted the waves.

 If any object is comes under the range that we are set to the transducer then the transmitted waves are reflected back from the object and received by the transducer. And then it will gives the warning with help of buzzer and LED lights to indicate that the distance is to close and help to prevent the vehicles to meet with accident and will be display on LCD.

Hardware specification:-

·       8051 series microcontroller

·       ultrasonic transducer

·       LCD

·       LED

·       Buzzer

·       Power supply

Software specification:-

• MC Programming Language: embedded C
• Keil  version IDE
• Proteus For Circuit & PCB Design