煤炭技术
煤炭技術
매탄기술
COAL TECHNOLOGY
2013年
10期
43-44,45
,共3页
AT89S51%液晶显示%A/D转换
AT89S51%液晶顯示%A/D轉換
AT89S51%액정현시%A/D전환
AT89S51%liquid crystal display%A/D conversion
此系统以AT89S51单片机为控制核心，利用电阻分压原理采集待测电阻和基准电阻的电压信号，经过AD转换器TLC2543将电压值转变为单片机可处理的数字信号，程序根据待测电阻阻值范围自动选择量程，并利用液晶LCD1602实时显示待测电阻阻值。
此繫統以AT89S51單片機為控製覈心，利用電阻分壓原理採集待測電阻和基準電阻的電壓信號，經過AD轉換器TLC2543將電壓值轉變為單片機可處理的數字信號，程序根據待測電阻阻值範圍自動選擇量程，併利用液晶LCD1602實時顯示待測電阻阻值。
차계통이AT89S51단편궤위공제핵심，이용전조분압원리채집대측전조화기준전조적전압신호，경과AD전환기TLC2543장전압치전변위단편궤가처리적수자신호，정서근거대측전조조치범위자동선택량정，병이용액정LCD1602실시현시대측전조조치。
In this system, AT89S51 single chip microcomputer is taken as the control core, by using a resistor divider principle, the voltage signal of measuring resistor and a reference resistor is collccted, after AD converter TLC2543,the voltage value is changed into a single chip digital signal processor, according to the measured resistance range, the program automatically selects the range, and displays real-time the measuring resistance by using LCD1602LCD.
