{"id":329,"date":"2026-01-18T23:55:43","date_gmt":"2026-01-18T15:55:43","guid":{"rendered":"http:\/\/liulifengblog.com\/?p=329"},"modified":"2026-01-18T23:55:44","modified_gmt":"2026-01-18T15:55:44","slug":"%e8%93%9d%e6%a1%a5%e6%9d%af%e5%8d%95%e7%89%87%e6%9c%ba%e6%8f%90%e5%8d%87%e7%af%87-led","status":"publish","type":"post","link":"http:\/\/liulifengblog.com\/index.php\/2026\/01\/18\/%e8%93%9d%e6%a1%a5%e6%9d%af%e5%8d%95%e7%89%87%e6%9c%ba%e6%8f%90%e5%8d%87%e7%af%87-led\/","title":{"rendered":"\u84dd\u6865\u676f\u5355\u7247\u673a\u63d0\u5347\u7bc7-LED"},"content":{"rendered":"\n

led\u539f\u7406<\/h3>\n\n\n\n
\"image-20250319001028877\"\/<\/div><\/figure>\n\n\n\n
\"image-20250319000920458\"\/<\/div><\/figure>\n\n\n\n
\"image-20250319000742311\"\/<\/div><\/figure>\n\n\n\n

LED\u63a7\u5236\u4ee3\u7801<\/p>\n\n\n\n

LED\u5e95\u5c42\u4ee3\u7801\u4e00\u5171\u6709\u4e24\u79cd\uff0c\u4e00\u79cd\u4e3a\u72b6\u6001\u63a7\u5236\u7248\u672c\uff0c\u4e00\u79cd\u4e3a\u76f4\u63a5\u8d4b\u503c\u6cd5\uff0c\u524d\u8005\u9002\u5408\u72b6\u6001\u63a7\u5236\uff0c\u53ef\u4ee5\u5b9e\u73b0\u6bcf\u4e2a\u706f\u4e92\u4e0d\u5f71\u54cd\uff0c\u540e\u8005\u9002\u5408\u6d41\u6c34\u706f\uff0cPWM\u706f<\/p>\n\n\n\n

 \/\/\u72b6\u6001\u63a7\u5236\u7248\u672c
 void led(uchar * LED,uchar pos)
 {
     static uchar temp=0xff;
     if(LED[pos])
         temp &= ~(0x01<<pos);
     else
         temp |= 0x01<<pos;      
     P0=temp;
     hc573(4);
 }
 void display_task()
 {
     
     LED[0] = (col_flag == 0 && display_state1 == 0) ? 1 : 0;  
     LED[1] = (col_flag == 0 && display_state1 == 1) ? 1 : 0;
     LED[2] = (col_flag == 1) ? 1 : 0;
     LED[3] = (count_tri >0 && temp > temp_par) ? L4_state : 0;
     LED[4] = (count_tri >0 && (hum>90||hum<10)) ? 1 : 0;
     LED[5] = (count_tri >= 2) ? L6_state : 0;
     LED[6] = 0;
     LED[7] = 0;
 \/\/\u76f4\u63a5\u8d4b\u503c\u6cd5
 }
 void timer1()  interrupt 3
 {
     systick_ms++;
     key_dly++;
     display_dly++;
     collect_dly++;
     smg(SMG,dot,pos);
     if(++count_200ms == 200)
     {
     count_200ms = 0;
     P0 = 0xff << position;  \/\/\u6574\u4f53\u8d4b\u503c
     hc573(4);
     if(++position == 9)     position = 0;
     }
     if(++pos == 8) pos = 0;
     relay(state_relay);
 }<\/code><\/pre>\n\n\n\n
LED\u8003\u70b9\u5206\u6790<\/h3>\n\n\n\n
\u6d41\u6c34\u706f<\/h4>\n\n\n\n
\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \u4ee5\u7b2c\u4e8c\u5c4a\u7701\u8d5b\u4e3a\u4f8b<\/p>\n\n\n\n
 void timer1()  interrupt 3
 {
     systick_ms++;
     key_dly++;
     display_dly++;
     collect_dly++;
     smg(SMG,dot,pos);
     if(++count_200ms == 200)
     {
     count_200ms = 0;
     P0 = 0xff << position;  \/\/\u6574\u4f53\u8d4b\u503c
     hc573(4);
     if(mode)
     {
         if(++position == 9)     position = 0;
     }
     else 
     {
         if(position > 0)
             position--;
         else 
             position = 8;
     }
     }
     if(++pos == 8) pos = 0;
     relay(state_relay);
 }<\/code><\/pre>\n\n\n\n
PWM\u6d41\u6c34\u706f<\/h4>\n\n\n\n
\u4ee5\u7b2c\u4e5d\u5c4a\u7701\u8d5b\u4e3a\u4f8b \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" ledpwm\u8c03\u5149\u7684\u9891\u7387\u5927\u6982\u5728100HZ\u5de6\u53f3\uff0c\u5bf9\u5e94\u65f6\u95f410ms\uff0c\u9898\u76ee\u8981\u6c42\u5206\u56db\u4e2aPWM\u5360\u7a7a\u6bd4\uff0c25%\uff0c50%\uff0c75%\uff0c100%\uff0c\u8fd9\u6837\u7684\u8bdd\u9700\u8981\u57282.5ms\u6539\u53d8\u4e00\u6b21LED\u72b6\u6001\uff0c\u6709\u70b9\u4e0d\u5408\u7406\uff0c\u6240\u4ee5\u6211\u4eec\u5c06\u5468\u671f\u6539\u4e3a12ms,\u9891\u738783HZ\u3002 \u9700\u8981\u6ce8\u610f\u7684\u662fLED\u4f4e\u7535\u5e73\u70b9\u4eae \u4e0b\u9762\u4ee5\u5b9e\u73b025%\u4eae\u5ea6\u4e3a\u4f8b \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \u9700\u8981\u57280ms\u65f6\u70b9\u4eaeled\uff0c\u57283ms\u65f6\u7184\u706dled,\u52a0\u523012ms\u5f52\u96f6 \u4ee3\u7801\u5982\u4e0b\uff08\u793a\u4f8b)\uff1a<\/p>\n\n\n\n
 uint count_ms;
 uint mode_time;
 void timer1()  interrupt 3
 {
     systick_ms++;
     key_dly++;
     display_dly++;
     collect_dly++;
     smg(SMG,dot,pos);
     if(++count_ms == mode_time)  \/\/\u63a7\u5236\u79fb\u4f4d
     {
         count_ms = 0;
         if(++position == 9)
             position = 0;
     }
     if(pwm_count == 0)      \/\/\u7b49\u4e8e0\u70b9\u4eaeLED
     {
         P0 = 0xff << position;  \/\/\u6574\u4f53\u8d4b\u503c
         hc573(4);
     }
     else if(pwm_count == pwm_duty) \/\/\u7b49\u4e8e\u5360\u7a7a\u6bd4\u65f6\u7184\u706d
     {
         P0 = 0xff;  \/\/\u6574\u4f53\u8d4b\u503c
         hc573(4);
     }
     if(++pwm_count == 12)   \/\/\u52a0\u523012\u5f52\u96f6
         pwm_count = 0;
     if(++pos == 8) pos = 0;
     relay(state_relay);
 }<\/code><\/pre>\n\n\n\n
led\u95ea\u70c1\uff08\u4ee5x\u79d2\u4e3a\u95f4\u9694\u95ea\u70c1\u6307\u7684\u662f\u4eae\u548c\u706d\u7684\u65f6\u95f4\u95f4\u9694\uff09<\/h4>\n\n\n\n
\u9898\u76ee\u4e00 \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n\n\n\n
 uint count_ms;
 uint mode_time;
 void timer1()  interrupt 3
 {
     systick_ms++;
     key_dly++;
     display_dly++;
     collect_dly++;
     smg(SMG,dot,pos);
     if(++count_ms == mode_time)
     {
         count_ms = 0;
         L1_flag ^= 1;
     }
     if(++pos == 8) pos = 0;
     relay(state_relay);
 }
     LED[0] = L1_flag;  
     LED[1] = 0;
     LED[2] = 0;
     LED[3] = 0;
     LED[4] = 0;;
     LED[5] = 0;
     LED[6] = 0;
     LED[7] = 0;<\/code><\/pre>\n\n\n\n
\u9898\u76ee\u4e8c \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n\n\n\n
 uint count_ms;
 void timer1()  interrupt 3
 {
     systick_ms++;
     key_dly++;
     display_dly++;
     collect_dly++;
     smg(SMG,dot,pos);
     if(++count_ms == 100)
     {
         count_ms = 0;
         L8_flag ^= 1;
     }
     if(++pos == 8) pos = 0;
     relay(state_relay);
 }
     LED[0] = 0;  
     LED[1] = 0;
     LED[2] = 0;
     LED[3] = 0;
     LED[4] = 0;;
     LED[5] = 0;
     LED[6] = 0;
     LED[7] = (mode) ? L8_flag : 0;<\/code><\/pre>\n\n\n\n
led\u4eae\u4e00\u5b9a\u65f6\u95f4\u540e\u7184\u706d<\/h4>\n\n\n\n
\u9898\u76ee\u4e00 \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n\n\n\n
     LED[0] = (Time[1] == 0 && (Time[0] >=0 && Time[0] < 5)) ? 1 : 0;  
     LED[1] = 0;
     LED[2] = 0;
     LED[3] = 0;
     LED[4] = 0;;
     LED[5] = 0;
     LED[6] = 0;
     LED[7] = 0;<\/code><\/pre>\n\n\n\n
\u9898\u76ee\u4e8c \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n\n\n\n
 uint count_ms;
 uchar count;
 void timer1()  interrupt 3
 {
     systick_ms++;
     key_dly++;
     display_dly++;
     collect_dly++;
     smg(SMG,dot,pos);
     if(state == 1)
     {
         if(++count_ms == 200)
         {
             count_ms = 0;
             if(++count == 20)\/\/\u4eae\u706d\u5404\u5341\u6b21
             {
                 count = 0;
                 state = 0;
             }
         }
     }
     if(++pos == 8) pos = 0;
     relay(state_relay);
 }
     LED[0] = (state == 1) ? count % 2 : 0;  
     LED[1] = 0;
     LED[2] = 0;
     LED[3] = 0;
     LED[4] = 0;;
     LED[5] = 0;
     LED[6] = 0;
     LED[7] = 0;<\/code><\/pre>\n\n\n\n
\u72b6\u6001\u6307\u793a\u706f<\/h4>\n\n\n\n
\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"\/<\/div><\/figure>\n\n\n\n
     LED[0] = (vol > vol_old) ? 1 : 0;  
     LED[1] = (fre > fre_old) ? 1 : 0;
     LED[2] = (state_display == 0) ? 1 : 0;
     LED[3] = (state_display == 1) ? 1 : 0;
     LED[4] = (state_display == 2) ? 1 : 0;
     LED[5] = 0;
     LED[6] = 0;
     LED[7] = 0;<\/code><\/pre>\n\n\n\n
\u4e8c\u8fdb\u5236\u706f<\/h4>\n\n\n\n
\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \u7528\u7a0b\u5e8f\u5458\u8ba1\u7b97\u5668\u8ba1\u7b97\u53d1\u73b080\u7684\u4e8c\u8fdb\u5236\u4e3a01010000\uff1b\u4e0eLED\u7684\u663e\u793a\u6b63\u597d\u76f8\u53cd\uff0c\u6240\u4ee5\u9700\u8981\u8fdb\u884c\u53d6\u53cd<\/p>\n\n\n\n
 void timer1()  interrupt 3
 {
     systick_ms++;
     key_dly++;
     display_dly++;
     collect_dly++;
     smg(SMG,dot,pos);
     P0 = ~(distance);
     hc573(4);
     if(++pos == 8) pos = 0;
     relay(state_relay);
 }<\/code><\/pre>\n\n\n\n
<\/h2>\n","protected":false},"excerpt":{"rendered":"
led\u539f\u7406 LED\u63a7\u5236\u4ee3\u7801 LED\u5e95\u5c42\u4ee3\u7801\u4e00\u5171\u6709\u4e24\u79cd\uff0c\u4e00\u79cd\u4e3a\u72b6\u6001\u63a7\u5236\u7248\u672c\uff0c\u4e00\u79cd\u4e3a\u76f4\u63a5\u8d4b\u503c\u6cd5\uff0c\u524d\u8005\u9002\u5408\u72b6\u6001\u63a7\u5236\uff0c […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-329","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"http:\/\/liulifengblog.com\/index.php\/wp-json\/wp\/v2\/posts\/329","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/liulifengblog.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/liulifengblog.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/liulifengblog.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/liulifengblog.com\/index.php\/wp-json\/wp\/v2\/comments?post=329"}],"version-history":[{"count":1,"href":"http:\/\/liulifengblog.com\/index.php\/wp-json\/wp\/v2\/posts\/329\/revisions"}],"predecessor-version":[{"id":330,"href":"http:\/\/liulifengblog.com\/index.php\/wp-json\/wp\/v2\/posts\/329\/revisions\/330"}],"wp:attachment":[{"href":"http:\/\/liulifengblog.com\/index.php\/wp-json\/wp\/v2\/media?parent=329"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/liulifengblog.com\/index.php\/wp-json\/wp\/v2\/categories?post=329"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/liulifengblog.com\/index.php\/wp-json\/wp\/v2\/tags?post=329"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}