The ultrasonic distance alarm system based on msp430 f449
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The document describes an ultrasonic distance alarm system designed using a Texas Instruments MSP430F449 microcontroller and TCT40-16F ultrasonic sensor. The system uses the MJ echo capture method to accurately measure distances in real-time and display them on an LCD screen. It will also immediately alarm if an object gets closer than a preset distance threshold. The system improves accuracy further by using a temperature sensor for temperature compensation of the ultrasonic measurements, making it suitable for distance monitoring applications in vehicles.
The ultrasonic distance alarm system based on msp430 f449
- 1. THE ULTRASONIC DISTANCE ALARM SYSTEM BASED ON MSP430F449 ABSTRACT: The principle ultrasonic distance measurement was introduced. Using Texas Instrument's micro controller MSP430F449 and ultrasonic sensor TCT40-16F, an ultrasonic measurement and alarm system with high precision was designed. Adopting the method of MJ echo capture, the system can measure the distance well and truly, and can send the realtime distance data to the LCD screen of system. Once the distance was less than the setting value, the system would alarm immediately. In addition, the system uses temperature sensor for temperature compensation, which effectively improves the ranging accuracy. Experimental results show that the system has high range accuracy, and can complete the distance measuring task in cars.