{"id":97,"date":"2016-11-05T19:02:10","date_gmt":"2016-11-05T11:02:10","guid":{"rendered":"https:\/\/hpcgoblog.wordpress.com\/?p=97"},"modified":"2026-01-13T10:01:00","modified_gmt":"2026-01-13T02:01:00","slug":"led-7-segment","status":"publish","type":"post","link":"https:\/\/cfnavi.org\/aitech\/led-7-segment\/","title":{"rendered":"\u4e03\u6bb5\u986f\u793a\u5668"},"content":{"rendered":"\n<h3 class=\"wp-block-heading\">\u3010\u8aaa\u660e\u3011<\/h3>\n\n\n\n<p>\u4e03\u6bb5\u986f\u793a\u5668\u4e5f\u7a31\u4e03\u6bb5\u6578\u78bc\u7ba1\uff0c\u662f\u7531\u4e03\u500b\u6392\u5217\u6210\u6578\u5b57\u53ca\u4e00\u500b\u5c0f\u6578\u9ede\u7684 LED \u6240\u7d44\u6210\uff0c\u662f\u6700\u57fa\u672c\u7684\u986f\u793a\u5143\u4ef6\u3002<\/p>\n\n\n\n<p>\u88fd\u4f5c\u4e00\u500b\u529f\u80fd\u53ef\u85c9\u7531\u9375\u76e4(UART)\u8f38\u5165\u6578\u5b57\uff0c\u4f86\u986f\u793a\u4e03\u6bb5\u6578\u78bc\u7ba1\u7684LED\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3010\u96f6\u4ef6\u8868\u3011<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td><strong>No.<\/strong><\/td><td><strong>\u96f6\u4ef6\u540d\u7a31<\/strong><\/td><td><strong>\u6578\u91cf<\/strong><\/td><\/tr><tr><td><strong>1<\/strong><\/td><td>\u4e03\u6bb5\u986f\u793a\u5668<p><\/p>\n<p>\u5206\u70ba\u5171\u967d\u6975(\u672c\u4f8b\u4f7f\u7528)\u53ca\u5171\u9670\u6975\u5169\u7a2e\u3002<\/p><\/td><td>1<\/td><\/tr><tr><td><strong>2<\/strong><\/td><td>220\u03a9\u76f4\u63d2\u96fb\u963b<\/td><td><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">\u3010\u96f6\u4ef6\u63a5\u8173\u3011<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td><strong>No.<\/strong><\/td><td><strong>\u96f6\u4ef6\u63a5\u8173<\/strong><\/td><td><strong>UNO R3<\/strong><strong>&nbsp;<\/strong><strong>\u63a5\u8173<\/strong><\/td><\/tr><tr><td>1<\/td><td>\u6578\u78bc\u7ba1(dp)<\/td><td>D11<\/td><\/tr><tr><td>2<\/td><td>\u6578\u78bc\u7ba1(a)<\/td><td>D10<\/td><\/tr><tr><td>3<\/td><td>\u6578\u78bc\u7ba1(b)<\/td><td>D9<\/td><\/tr><tr><td>4<\/td><td>\u6578\u78bc\u7ba1(c)<\/td><td>D8<\/td><\/tr><tr><td>5<\/td><td>\u6578\u78bc\u7ba1(d)<\/td><td>D7<\/td><\/tr><tr><td>6<\/td><td>\u6578\u78bc\u7ba1(e)<\/td><td>D6<\/td><\/tr><tr><td>7<\/td><td>\u6578\u78bc\u7ba1(f)<\/td><td>D5<\/td><\/tr><tr><td>8<\/td><td>\u6578\u78bc\u7ba1(g)<\/td><td>D4<\/td><\/tr><tr><td>9<\/td><td>\u5171\u967d\u6975()<\/td><td>Vcc<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">\u3010\u6309\u7dda\u5716\u3011<\/h3>\n\n\n\n<figure class=\"wp-block-image aligncenter\"><img loading=\"lazy\" decoding=\"async\" width=\"576\" height=\"223\" src=\"https:\/\/cfnavi.org\/aitech\/wp-content\/uploads\/2016\/11\/led_7_segment_pinmap.png\" alt=\"led_7_segment_pinmap\" class=\"wp-image-166\" srcset=\"https:\/\/cfnavi.org\/aitech\/wp-content\/uploads\/2016\/11\/led_7_segment_pinmap.png 576w, https:\/\/cfnavi.org\/aitech\/wp-content\/uploads\/2016\/11\/led_7_segment_pinmap-300x116.png 300w\" sizes=\"auto, (max-width: 576px) 100vw, 576px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image aligncenter\"><img loading=\"lazy\" decoding=\"async\" width=\"874\" height=\"1134\" src=\"https:\/\/hpcgoblog.wordpress.com\/wp-content\/uploads\/2016\/11\/led_7_segment.png\" alt=\"led_7_segment\" class=\"wp-image-168\" srcset=\"https:\/\/cfnavi.org\/aitech\/wp-content\/uploads\/2016\/11\/led_7_segment.png 874w, https:\/\/cfnavi.org\/aitech\/wp-content\/uploads\/2016\/11\/led_7_segment-231x300.png 231w, https:\/\/cfnavi.org\/aitech\/wp-content\/uploads\/2016\/11\/led_7_segment-789x1024.png 789w, https:\/\/cfnavi.org\/aitech\/wp-content\/uploads\/2016\/11\/led_7_segment-768x996.png 768w\" sizes=\"auto, (max-width: 874px) 100vw, 874px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">\u3010\u7a0b\u5f0f\u78bc\u3011<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/ \u672c\u7a0b\u5f0f\u63a1\u7528\u5171\u967d\u6975\u4e03\u6bb5\u986f\u793a\u5668\n\/\/ \u5b9a\u7fa9\u4e03\u6bb5\u986f\u793a\u5668\u7684 dp, a, b,  c, d, e, f, g \u8173\u4f4d\nint digital7LED&#91;8] = {11, 10, 9, 8, 7, 6, 5, 4};\nint digitalNum&#91;12] = {  \/\/ bit \u7684\u9806\u5e8f\uff1a Bgfedc.ba\n  B10000001,    \/\/ '0'\n  B11110011,    \/\/ '1'\n  B01001001,    \/\/ '2'\n  B01100001,    \/\/ '3'\n  B00110011,    \/\/ '4'\n  B00100101,    \/\/ '5'\n  B00000101,    \/\/ '6'\n  B11110001,    \/\/ '7'\n  B00000001,    \/\/ '8'\n  B00100001,    \/\/ '9'\n  B00000000,    \/\/ 'S' - \u5168\u4eae\n  B11111111     \/\/ 'C. - \u6e05\u9664(\u5168\u6697)\n};\n\n\/\/ \u8a2d\u7f6e\u8b8a\u6578\nint i = 0;              \/\/ \u8ff4\u5708\u8b8a\u6578\nchar ch = '0';          \/\/ \u53d6\u5f97\u4f86\u81ea UART \u7684\u6578\u5b57\nbool dpOn = false;      \/\/ \u5c0f\u6578\u9ede\u9810\u8a2d\u95dc\u9589\n \nvoid setup()\n{\n  Serial.begin(9600);   \/\/ \u958b\u555f UART\n  for (i = 0; i &lt; 8; i++) {\n    pinMode(digital7LED&#91;i], OUTPUT);\n  }\n  displayNumber(11);;  \/\/ \u521d\u59cb\u503c\u70ba\u95dc\u9589\u6240\u6709 LED\n}\n \nvoid loop()\n{\n  if (Serial.available()) {\n    ch = Serial.read();\n    if (ch &lt;= '9' &amp;&amp; ch >= '0')\n      displayNumber(ch - '0');\n    else if (ch == 'S' || ch == 's')  \/\/ \u8a2d LED \u5168\u4eae\n      displayNumber(10);\n    else if (ch == 'C' || ch == 'c')  \/\/ \u8a2d LED \u5168\u6697\n      displayNumber(11);\n    else if (ch == '.') \/\/ Set dot point ON \/ OFF\n      if (dpOn) setDpOn(false); \n      else setDpOn(true);\n  }\n}\n\nvoid displayNumber(int Num){\n  \/\/ \u8a2d\u5b9a\u8173\u4f4d a ~ g \u7684\u503c\n  for (i = 1; i &lt; 8; i++) {\n    digitalWrite(digital7LED&#91;i], bitRead(digitalNum&#91;Num],i));\n  }\n  \/\/ \u8a2d\u5b9a\u8173\u4f4d dp \u7684\u503c\n  if (Num == 10) setDpOn(true);   \/\/ \u958b\u555f\u5c0f\u6578\u9ede\n  if (Num == 11) setDpOn(false);  \/\/ \u95dc\u9589\u5c0f\u6578\u9ede\n}\n\nvoid setDpOn(bool setOn) {\n  \/\/ digital7LED&#91;0] \u70ba dp PIN \u8173\n  dpOn = setOn;\n  if (dpOn)\n    digitalWrite(digital7LED&#91;0], LOW);   \n  else\n    digitalWrite(digital7LED&#91;0], HIGH);   \n}<\/code><\/pre>\n\n\n\n<div class=\"wp-block-stackable-button-group stk-block-button-group stk-block stk-fb038fa\" data-block-id=\"fb038fa\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-button-group\">\n<div class=\"wp-block-stackable-button stk-block-button is-style-ghost stk-block stk-1caa6b9\" data-block-id=\"1caa6b9\"><style>.stk-1caa6b9 .stk-button{background:transparent !important;}.stk-1caa6b9 .stk-button:hover:after{background:transparent !important;opacity:1 !important;}:where(.stk-hover-parent:hover,  .stk-hover-parent.stk--is-hovered) .stk-1caa6b9 .stk-button:after{background:transparent !important;opacity:1 !important;}.stk-1caa6b9 .stk-button:before{border-style:solid !important;}<\/style><a class=\"stk-link stk-button stk--hover-effect-darken\" href=\"https:\/\/cfnavi.org\/aitech\/wp-content\/uploads\/2026\/01\/LED_7_Segment.zip\" target=\"_blank\" rel=\"noreferrer noopener\"><span class=\"stk-button__inner-text\">\u4e0b\u8f09\u7a0b\u5f0f\u78bc<\/span><\/a><\/div>\n<\/div><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">&nbsp;\u203b &nbsp;\u5206\u4eab\u7d50\u675f &nbsp;\u203b<\/h3>\n","protected":false},"excerpt":{"rendered":"<p>\u88fd\u4f5c\u4e00\u500b\u529f\u80fd\u53ef\u85c9\u7531\u9375\u76e4(UART)\u8f38\u5165\u6578\u5b57\uff0c\u4f86\u986f\u793a\u4e03\u6bb5\u6578\u78bc\u7ba1\u7684LED\u3002<\/p>\n","protected":false},"author":8,"featured_media":250,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"footnotes":""},"categories":[86],"tags":[94,98],"class_list":["post-97","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-arduino","tag-button","tag-led"],"blocksy_meta":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.0 - 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