对,用DS18b20很简单,而且可以申请样片
http://zhidao.baidu.com/question/98097423.html
http://hi.baidu.com/szcgq/blog/item/ff96dc1603818e1f962b43f8.html
http://diewater.bokee.com/3566937.html
http://www.jdzj.com/pic/Class346/Class355/20080726171027.html
http://www.61ic.com/Technology/embed/200604/3423.html
http://blog.csdn.net/ncdawen/archive/2006/03/21/631696.aspx
用AT89S(C)51+DS18B20做,非常简单 (精确到0.0625度)
我无话可说 上面全是