基于IAP15W4K58S4单片机的智能小车设计

Design of Intelligent Car Based on IAP15W4K58S4AbstractWith the development of the times and the progress of science,people's quality of liferequirements are getting higher and higher.Intelligent has become more and more productdevelopment direction.First of all,the development of smart phones,so that consumersunderstand the intelligent life experience.Then,a large number of electronic products,such assmart appliances,are trying to develop in an intelligent way.Unmanned vehicles are boomingin recent years due to the development of sensors,artificial intelligence and large dataIntelligent car as a kind of wheeled robots,its development involves a lot of knowledgeand technology.First,it needs to use a variety of sensors to get information from the outsideworld.And then send the signal to the microcontroller to analyze it,and finally issued acommand.The level of research on smart cars reflects development of the integrated circuit.The intelligent car design is mainly to achieve the car's Bluetooth communication,LCDdisplay,motion control,infrared tracking and ultrasonic obstacle avoidance function.Masterchip is STC IAP15W4K58S4 microcontroller,which built-in enhanced PWM generatorcircuit.Through the register settings,a certain duty cycle PWM waveform can be output,andthen to achieve the control of the motor speed.The communication between themicrocontroller and the mobile phone uses the master-slave HC-05 Bluetooth module tocontrol the car.Display car movement state by LCD1602.Measure the distance by HC-SR04.When the distance is less than the setting value,the car avoids the obstacle through thecorresponding action,and completes the obstacle avoidance function of the car.The car'stracing uses a three-way infrared photoelectric sensor HJ-IRI to determine the position of theblack line based on the black and white reflections of the infrared light.Key Words:LCD1602;Bluetooth communication;PWM;tracking;obstacle avoidanceII-