It uses a single bus single clock signal line is also the transmission of data transmission and data transmission is a two-way it has to save I/O port line resource structure to facilitate low-cost and easy expansion and bus Maintenance and many other advantages. The system all the DS18B20 have access at the mouth on MCU P1.1. With a LCD screen display, from the mouth connected to P3 Singlechip 8 switch, with the right DS18B20 Number corresponds to. When there is no screen display when pressing the switch "which NO you want press which key", that the Department wants to look at the temperature of the press a few keys No. (click the right key of the Little Red Point, click under the shells, and then click up). There can be only one button press, when there is more than the next button when the screen "please press one key only!".

DS18B20单总线多点式测温系统
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