DS18B20温度显示实验 数码管显示温度值，精确到小数后面2位值 * * 使用时将DS18B20温度传感器插入对应插座中运行即可 * * 用手拧住温度探头，就可以看到温度值的变化！-DS18B20 temperature display digital tube experiments showed that the temperature value, accurate to two decimal value back** used to insert the corre

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拧动AD旁边的电位器，会在数码管的前三位显示0-255之间的数值。这就是把模拟电压转换成数字信号。-Screw action of the potentiometer next AD will be in the top three digital tube display values between 0-255. This is the analog voltage into digital signals.

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