单片机C语言教程： DS18B20测温

DS18B20数字温度计是DALLAS公司生产的1-Wire即单总线器件，具有线路简单，体积小的特点。实际应用中不需要外部任何元器件即可实现测温，测量温度范围在-55°C到+125°C之间，数字温度计的分辨率用户可以从9位到12位选择；并且内部有温度上、下限告警设置，使用非常方便。

-SCM C Language Tutorial: DS18B20 temperature DS18B20 digital thermometer is a DALLAS produced 1-Wire bus that is a single device with a simple circuit, small size and characteristics. Practical applications require no external components can be realized in any temperature, measurement temperature range of-55 ° C to+125 ° C between the digital thermometer resolution users can select 9-12　and internal temperature upper and lower alarm settings, use very convenient.