基于C8051F020的档案库温湿度控制

基于C8051F020的温湿度控制器,主器件为8051F020,从器件为I2C总线数字温湿度传感器SHT11,接口电路用I/O端口初始化程序启动优先权交叉开关译码器把引脚分别配置成串行数据及串行时钟,并配置基本输入输出.软件设计则采用Bang-Bang控制算法,需高低两个温度设置点.温度高于高点则关闭电源,低于低点则打开电源.控制程序含系统复位、初始化、A/D转换和读取数据转换、Bang-Bang控制算法及输出控制子程序.

Temperature and Humidity Control in Archives Repository Based on C8051F020

The temperature and humidity controller is based on C8051F02, its main unit is 8051F020, its secondary unit is the I2C bus digital temperature and humidity sensor SHT11. The precedence interlace switching decoder is started up with interface circuit uses I/O initial program. The pins of decoder are allocated into serial data and serial clock respectively, and the basic I/O also is allocated. Bang-Bang control arithmetic was adopted in software design and two pieces of the high and the low temperature point. The current is turned off when the temperature is higher than the high point and the current will be turned on when the temperature is lower than the low one. The control program includes reset subroutine, initial subroutine, A/D and ADC reader subroutine, Bang-Bang, output control subroutine.