LEDÏÔʾÆÁʹÓÃÔ½À´Ô½¹ã·º£¬µ«ÊÇÈËÃǶÔLEDÏÔʾÆÁÏà¹ØÖªÊ¶µÄÈÏʶ²¢²»ÊǺܸߡ£µ¥Ôª°å¹ÊÕÏÊÇLEDÏÔʾÆÁ³£¼û¹ÊÕÏÖ®Ò»¡£µ±ÏÔʾÆÁµ¥Ôª°å³öÏÖÎÊÌâʱ£¬ÎÒÃÇÓ¦¸ÃÔõô´¦ÀíÄØ£¿ÏÂÃæÁª³Ï·¢Ð¡±à¸ø´ó¼Ò½éÉÜÒ»ÏÂLEDÏÔʾÆÁµ¥Ôª°åµÄ³£¼û¹ÊÕϼ°´¦Àí·½·¨¡£
Ò»¡¢LEDÏÔʾÆÁµ¥Ôª°åÕû°å²»ÁÁ£º¼ì²é¹©µçµçÔ´ÓëÐźÅÏßÊDz»ÊÇÁª½Ó£»¼ì²é¼ìÑ鿨ÊDz»ÊÇÄܹ»±æÈϽӿڣ¬¼ìÑ鿨ºìµÆÉÁÒ«ÔòûÓбæÈÏ£¬¼ì²éµÆ°åÊDz»ÊÇÓë¼ìÑ鿨ͬµçÔ´»òµÆ°å½Ó¿ÚÓÐÐźÅÓëµØ¶Ì·ÖÂʹÎÞ·¨±æÈϽӿڣ»¼ì²é74HC245ÓÐÎÞÐ麸¶Ì·£¬245É϶ÔÓ¦µÄʹÄÜ(EN)ÐźÅÊäÈëÊä³ö½ÅÊDz»ÊÇÐ麸»ò¶Ì·µ½ÆäËûÏß·¡£
¶þ¡¢ÔÚµãбɨÃèʱ£¬¹æÂÉÐԵĸôÐв»ÁÁÉÁÏÖ»Ãæ¶Ñµþ£º¼ì²éA¡¢B¡¢C¡¢DÐźÅÊäÈë¿Úµ½245Ö®¼äÊDz»ÊÇÓжÏÏß»òÐ麸¡¢¶Ì·£»¼ì²é245¶ÔÓ¦µÄA¡¢B¡¢C¡¢DÊä³ö¶ËÓë138Ö®¼äÊDz»ÊǶÌ·»òÐ麸¡¢¶ÏÏߣ»¼ì²éA¡¢B¡¢C¡¢D¸÷ÐźÅÖ®¼äÊDz»ÊǶÌ·»òijÐźÅÓëµØ¶Ì·¡£
Èý¡¢È«ÁÁʱÓÐÒ»Ðлò¼¸Ðв»ÁÁ£º¼ì²é138µ½4953Ö®¼äµÄÏß·ÊDz»ÊǶÏ·»òÐ麸¡¢¶Ì·¡£
ËÄ¡¢ÄÚÐÐɨÃèʱ£¬Á½Ðлò¼¸ÐÐ(ͨ³£ÊÇ2µÄ±¶Êý£¬ÓйæÂÉÐÔµÄ)һͬµãÁÁ£º¼ì²éA¡¢B¡¢C¡¢D¸÷ÐźÅÖ®¼äÊDz»ÊǶÌ·£»¼ì²é4953Êä³ö¶ËÊDz»ÊÇÓëÆäËûÊä³ö¶Ë¶Ì·¡£
Î塢ȫÁÁʱÓе¥µã»ò¶àµã(ÎÞ¹æÂÉ)²»ÁÁ£ºÕÒµ½¸ÃÄ£¿é¶ÔÓ¦µÄ¿ØÖƽÅÕÉÁ¿ÊDz»ÊÇÓë±¾ÐжÌ·£»¸ü»»Ä£¿é»òµ¥µÆ¡£
×ܽ᣺Á˽âºÍÕÆÎÕÁËÈ«²ÊLEDÏÔʾÆÁµ¥Ôª°å³£¼û¹ÊÕϼ°½â¾ö·½·¨£¬ÓÐÖúÓÚÌáÉýLEDÏÔʾÆÁµÄ°²È«Ê¹ÓÃЧÂÊ¡£