Circuit Design of Eyesight Protection Device which is Based on a Single Chip

Design the circuit of vision protector based on 8051 single chip microcontroller. The core of hardware is the 8051 single chip microcomputer, function circuit including sensor auxiliary sit straight alarm circuit, light alarm circuit, timing alarm circuit and alarm circuit. Have a basic understanding of SCM, then design each functional circuit, development software system, complete the design.

The Design of Ultrasonic Ranging System Based on Single Chip Microcontroller and VB

The single chip Microcontroller STC89C52RC was used as controller in the system, the HC-SR04 ultrasonic module was used to send and receive ultrasonic, and the single chip Microcontroller can calculate the distance of the measured object by the time difference of sending and receiving of ultrasonic. In order to improve the measurement precision, temperature compensation method was used, the temperature can be obtained by the digital temperature sensor DS18B20,the LCD1602 was used to real-time display the distance and ambient temperature, this two values were sent to PC by serial port, the Visual Basic 6.0 was used to program the monitor interface, convenient remote observation. The realization method of the system hardware and software were presented in this paper, the experimental results show that the system has the characteristics of simple structure, high measuring precision, good stability, easy operation and so on.

Development of the Electronic Control System for Air-Powered Engine

To improve the performances of air-powered engine (APE) used on the pneumatic and its hybrid vehicles, the electronic control system of APE was developed based on the single-chip microcontroller. The design process of hardware and software subsystem of the electronic control system was put forward according to the characteristics of APE and the resources of XC886 chip. The evaluation test was conducted to validate the electronic control system of APE. The experimental results show the control system can function well under any given conditions.