【摘要】 利用数字式温湿度传感器SHT11采集温度和湿度,将采集的温度和湿度利用集成化串行输入/输出共阴极显示驱动器MAX7219显示。MAX7219可以方便连接微处理器与8位数码管,并对数码管动态扫描显示,单片机更新某个数据时不需要改写其他数据。整个装置具备显示亮度可调、占用控制器引线少、简化外围接口电路、方便使用等诸多优点。更多还原

【Abstract】 The temperature and humidity are collected by the digital temperature and humidity sensor SHT11, and the collected temperature and humidity are displayed by the integrated serial input/output common cathode display driver MAX7219.MAX7219 can connect the microprocessor and the 8 bit digital tube conveniently, and the dynamic scanning of the digital tube shows that when the data is updated by a single chip microcomputer,the other data don’t need to be rewritten. The whole device has many advantages, such as adjustable brightness, less controller lead, simplified peripheral interface circuit and convenient use.更多还原