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sensor sr05 cảm biến siêu âm, tài liệu sử dujnh tiếng việt giúp các bạn nào cần làm báo cáo tiếng anh, trong tài liệu trình bày rõ ràng cấu tạo, tác dụng và cách giao tiếp giữa vi điều khiển với cảm biến siêu âm rf05
2014 Digital Design Project ultrasonic Sensor in Parking Car Instructor: Dr Nguyen Canh Quang Students: Dinh Tien Dat Pham Duy Khanh Le Thanh Tung CONTENTS I II III IV V VI Introdution and Overview Approach Structure of our system Hardware Software Design System Hardware Software Result of our system design Conclusion References Introdution and Overview Introdution and Overview • There are many pedestrians struck and injured by reversing vehicles each year in Viet Nam • => Using ultrasonic sensor in parking car Approach • • • Structure of our system Hardware Software Structure of our system Hardware a Distance sensor b Microcontroller c Display device d Actuator and Status devices Ultrasonic SR04 Sensor Chip atmega LCD 16x2 Module L298N Software a Programer software b Simulation platform c PCB design software AVR Studio Altium Designer 14 Proteus Design System Hardware a Power block b Main block c Actuator Device Block Software a Distance sensor code b Display device code c Actuator and Status devices code d Main code Hardware • Power block • Using Module LM7805 Hardware • Main block Hardware • Actuator Device Block • Using module L298N Software a Distance sensor code b Display device code c Actuator and Status devices code d Main code Software • Distance sensor code Software • Distance sensor code Software • Actuator and Status devices code • Using Timer (8bit) to control speed of motor Results of our system • By quick tests, we will determine sensor works correctly or not? • Test 1: Car runs encountered fixed obstacles on the road • Test 2: Car runs encountered moving fast obstacles on the road • Through two tests, we can see that the sensor operate quite accurately Testing showed that cars are separated over 10 cm from obstacles • We sent you testing clip by dropbox Conclusion • After finished our project , we got more knowledge about Safety Parking Car system and microprocessor AVR, how to control motor using PWM, module LM298 and, Ultrasonnic Distance Sensor HC SR04 ; and many peripheral interface , and have the chances to practice what we learn in lectures… This is very useful experience for us to work well in the future References • Sensor Technology Handbook by Jon S Wilson - Newnes (December 22, 2004) • Embedded C Programming and the Atmel AVR by Richard H Barnett - Cengage Learning - edition (June 5, 2006)