想在这个电路中加入555定时器构成的延时电路，怎么加？急用，回答正确有重谢啊，拜托了 用555定时器设计一个定时电路，定时时间到使LED灯继续亮1...
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\u7531\u4e8e555\u91c7\u7528\u5355\u7535\u6e90\u4f9b\u7535\uff0c\u56e0\u6b64\uff0c\u662f\u76f4\u6d41\u65b9\u6ce2\u3002
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\u8fd9\u4e2a\u6ee1\u8db3\u4f60\u7684\u8981\u6c42\uff1a
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中断或检测到定时器输出就调用一个软件延时程序就ok了不复杂啊
有中断就用个中断口，没有就随便一个io口但要查询检测
中断或检测到定时器输出就调用一个软件延时程序就ok了不复杂啊
看不到电路图
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绛旓細555瀹氭椂鍣鏃堕棿T=1.1*(R1+R2)*C锛堢锛夛紝濡傛灉鍙朿=47uF=0.000047F 15绉=1.1*(R1+R2)*0.000047 R1+R2=290k 鍐嶅彇R1=100K R2涓轰竴涓220K鍙皟鐢典綅鍣ㄥ氨琛屽氨鍙互瀹炵幇15绉掕鏃鐢佃矾銆備笉鍚岀殑鍒堕犲晢鐢熶骇鐨555鑺墖鏈変笉鍚岀殑缁撴瀯锛屾爣鍑嗙殑555鑺墖闆嗘垚鏈25涓櫠浣撶锛2涓簩鏋佺鍜15涓數闃诲苟閫氳繃8涓紩鑴...
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