{"id":1750,"date":"2017-08-30T11:11:32","date_gmt":"2017-08-30T03:11:32","guid":{"rendered":"https:\/\/drho.club\/?p=1750"},"modified":"2017-08-30T11:11:32","modified_gmt":"2017-08-30T03:11:32","slug":"arduino-7447-7-led-double","status":"publish","type":"post","link":"https:\/\/104.es\/index.php\/2017\/08\/30\/arduino-7447-7-led-double\/","title":{"rendered":"\u4f7f\u7528Arduino\u548c1\u98467447\uff0c\u63a7\u52362\u500b\u4e03\u6bb5\u986f\u793a\u5668"},"content":{"rendered":"<p>\u5728\u524d\u4e00\u7bc7\u6587\u7ae0\u4e2d\uff0c\u6211\u5011\u900f\u904e\u4e867447\u4ee54\u500b\u8173\u4f4d\u7684\u65b9\u5f0f\u4f86\u63a7\u52361\u500b\u4e03\u6bb5\u986f\u793a\u5668\uff0c\u90a3\u9ebc\u5982\u679c\u9700\u8981\u4f7f\u75282\u500b7\u6bb5\u986f\u793a\u5668\u7684\u8a71\uff0c\u662f\u5426\u9700\u89812\u98467447\u4ee5\u53ca2\u7d44\u96fb\u963b\u5462\uff1f\u7b54\u6848\u662f\u300c\u4e0d\u7528\u300d\uff0c\u53ea\u8981\u591a\u4f7f\u75282\u689d\u63a7\u5236\u7dda\uff0c\u548c\u591a\u4e00\u500b\u4e03\u6bb5\u986f\u793a\u5668\uff08\u597d\u50cf\u662f\u5ee2\u8a71\uff09\uff0c\u9084\u6709\u4e00\u4e9b\u9023\u63a5\u7dda\u5c31\u53ef\u4ee5\u4e86\u3002\u5148\u4f86\u770b\u770b\u5b8c\u6210\u7684\u6210\u679c\uff1a<\/p>\n<p><iframe loading=\"lazy\" title=\"\u4f7f\u7528Arduino\u4ee5\u53ca7447\u63a7\u52362\u500b\u4e03\u6bb5\u986f\u793a\u5668\" width=\"640\" height=\"360\" src=\"https:\/\/www.youtube.com\/embed\/I_ZRVcE7A_M?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/p>\n<p>\u770b\u8d77\u4f86\u6548\u679c\u4e0d\u932f\u5427\uff01\u544a\u8a34\u4f60\u4e00\u500b\u79d8\u5bc6\uff0c\u5176\u5be6\u6211\u5011\u4e26\u4e0d\u662f\u540c\u6642\u9ede\u4eae2\u500b\u4e03\u6bb5\u986f\u793a\u5668\uff0c\u800c\u662f\u4e00\u500b\u6642\u9593\u53ea\u9ede\u4eae\u4e00\u500b\uff0c\u56e0\u70ba\u540c\u4e00\u500b\u6642\u9593\u53ea\u9ede\u4eae\u4e00\u500b\uff0c\u6240\u4ee5\u53ea\u8981\u4e00\u98467447\u548c\u4e00\u7d44\u96fb\u963b\u5c31\u53ef\u4ee5\u4e86\u3002\u800c\u56e0\u70ba\u6211\u5011\u662f\u8f2a\u6d41\u9ede\u4eae\uff0c\u4e2d\u9593\u7684\u9593\u9694\u53ea\u67095ms\uff0c\u57fa\u65bc\u773c\u775b\u7684\u8996\u89ba\u66ab\u7559\u73fe\u8c61\uff0c\u6240\u4ee5\u5b8c\u5168\u770b\u4e0d\u51fa\u9583\u720d\u5594\u3002\u9023\u7dda\u7684\u7167\u7247\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n<p><a href=\"https:\/\/104.es\/wp-content\/uploads\/2017\/08\/2017-08-30-10.06.11.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-1751 aligncenter\" src=\"https:\/\/104.es\/wp-content\/uploads\/2017\/08\/2017-08-30-10.06.11.jpg\" alt=\"\" width=\"800\" height=\"450\" srcset=\"https:\/\/104.es\/wp-content\/uploads\/2017\/08\/2017-08-30-10.06.11.jpg 800w, https:\/\/104.es\/wp-content\/uploads\/2017\/08\/2017-08-30-10.06.11-300x169.jpg 300w, https:\/\/104.es\/wp-content\/uploads\/2017\/08\/2017-08-30-10.06.11-768x432.jpg 768w, https:\/\/104.es\/wp-content\/uploads\/2017\/08\/2017-08-30-10.06.11-600x338.jpg 600w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/a><\/p>\n<p>Arduino\u540c\u6a23\u5730\u8f38\u51fa5V\u7684\u96fb\u6e90\u548cGND\uff08\u4e0a\u5716\u4e0b\u65b9\uff09\uff0c\u7136\u5f8c\u5728\u4e0a\u4e00\u7bc7\u6587\u7ae0\u4e2d\u7528\u4f86\u63a7\u52367447\u7684\u8cc7\u6599\u8f38\u5165D1~D4\u4ecd\u7136\u662f\u63a5\u5230PIN2~PIN5\uff0c\u53e6\u5916\uff0c\u591a\u63a5\u4e862\u689d\u7dda\uff0c\u5206\u5225\u662f\u7528\u4f86\u63a7\u52362\u9846\u4e03\u6bb5\u986f\u793a\u5668\u7684PIN6\u548cPIN7\u3002PIN6\u548cPIN7\u5982\u679c\u8f38\u51fa\u662f0\u7684\u8a71\uff08\u56e0\u70ba\u662f\u5171\u967d\uff09\uff0c\u5247\u6703\u9ede\u4eae\u8a72\u98467\u6bb5\u986f\u793a\u5668\uff0c\u5982\u679c\u662f1\u7684\u8a71\uff0c\u5247\u4e0d\u986f\u793a\u3002\u4e0b\u5716\u662f\u9eb5\u5305\u677f\u4e0a\u7684\u9023\u63a5\u7dda\uff1a<\/p>\n<p><a href=\"https:\/\/104.es\/wp-content\/uploads\/2017\/08\/2017-08-30-10.06.20.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-1752 aligncenter\" src=\"https:\/\/104.es\/wp-content\/uploads\/2017\/08\/2017-08-30-10.06.20.jpg\" alt=\"\" width=\"800\" height=\"450\" \/><\/a><\/p>\n<p>\u7559\u610f\u52307447\u76847\u6bb5\u986f\u793a\u5668\u8f38\u51faa~g\u5148\u9023\u7dda\u5230220\u6b50\u59c6\u7684\u96fb\u963b\uff0c\u7136\u5f8c\u96fb\u963b\u7684\u53e6\u5916\u4e00\u7aef\uff0c\u518d\u5206\u5225\u4e26\u806f\u63a5\u5230\u4e03\u6bb5\u986f\u793a\u5668\u4e2d\u3002\u7576\u7136\uff0c\u4e03\u6bb5\u986f\u793a\u5668\u7684\u5171\u967d\u7aef\u5c31\u662f\u5206\u5225\u63a5\u5230PIN6\u548cPIN7\uff0c\u4e5f\u5225\u5fd8\u4e867447\u672c\u8eab\u4e5f\u662f\u9700\u8981\u96fb\u6e90\u7684\u3002\u90fd\u9023\u597d\u4e86\u4e4b\u5f8c\uff0c\u63a5\u4e0b\u4f86\u5c31\u662f\u6700\u91cd\u8981\u7684\u7a0b\u5f0f\uff1a<\/p>\n<p>[code]<br \/>\nbyte bcd_code[10][4] = {<br \/>\n  {0,0,0,0},<br \/>\n  {0,0,0,1},<br \/>\n  {0,0,1,0},<br \/>\n  {0,0,1,1},<br \/>\n  {0,1,0,0},<br \/>\n  {0,1,0,1},<br \/>\n  {0,1,1,0},<br \/>\n  {0,1,1,1},<br \/>\n  {1,0,0,0},<br \/>\n  {1,0,0,1}<br \/>\n};<br \/>\nbyte count = 0;<br \/>\nunsigned long time_prev = 0;<br \/>\nvoid setup() {<br \/>\n  pinMode(2, OUTPUT);<br \/>\n  pinMode(3, OUTPUT);<br \/>\n  pinMode(4, OUTPUT);<br \/>\n  pinMode(5, OUTPUT);<br \/>\n  pinMode(6, OUTPUT);<br \/>\n  pinMode(7, OUTPUT);<br \/>\n  time_prev = millis();<br \/>\n}<\/p>\n<p>void disp(byte d) {<br \/>\n  for(byte i=0; i&lt;4; i++) { digitalWrite(5-i, bcd_code[d][i]); } } void loop() { unsigned long time_now = millis(); if(time_now &#8211; time_prev &gt; 500) {<br \/>\n    count ++;<br \/>\n    if(count&gt;99) count=0;<br \/>\n    time_prev += 500;<br \/>\n  }<br \/>\n  digitalWrite(6, 1);<br \/>\n  digitalWrite(7, 0);<br \/>\n  disp(count%10);<br \/>\n  delay(5);<br \/>\n  digitalWrite(6, 0);<br \/>\n  digitalWrite(7, 1);<br \/>\n  disp(count\/10);<br \/>\n  delay(5);<br \/>\n}<br \/>\n[\/code]<\/p>\n<p>\u5ef6\u7e8c\u4e0a\u4e00\u7bc7\u6587\u7ae0\u7684\u7a0b\u5f0f\u6211\u5011\u505a\u4e86\u4e00\u4e9b\u4fee\u6539\u3002\u672c\u96fb\u8def\u7684\u4e3b\u8981\u76ee\u7684\u662f\u8981\u8b93\u4e03\u6bb5\u986f\u793a\u5668\u5f9e00\u6b63\u6578\u523099\uff0c\u6bcf0.5\u79d2\u5207\u63db\u4e00\u6b21\u3002\u4f7f\u7528\u524d\u4e00\u7bc7\u6587\u7ae0\u7684disp()\u51fd\u5f0f\uff0c\u4f46\u662f\u5728\u7b49\u5f850.5\u9019\u4ef6\u4e8b\u4e0a\uff0c\u5c31\u4e0d\u80fd\u4f7f\u7528\u4e4b\u524d\u7684delay()\u51fd\u5f0f\uff0c\u56e0\u70ba\u5b83\u5728\u7b49\u5f85\u7684\u6642\u9593\u6c92\u6709\u8fa6\u6cd5\u986f\u793aLED\u7684\u5167\u5bb9\uff0c\u6211\u5011\u8981\u505a\u7684\u662f\uff0c\u6301\u7e8c\u5730\u4f7f\u7528millis()\u51fd\u6578\u53d6\u5f97\u6642\u9593\uff0c\u53d6\u5f97\u6642\u9593\u4e4b\u5f8c\u8981\u505a\u6aa2\u67e5\uff0c\u53ea\u6709\u5728\u5dee\u503c\u8d85\u904e500\uff08ms\uff09\u6642\u624d\u6703\u5207\u63db\u8981\u986f\u793a\u7684\u6578\u5b57\uff0c\u5426\u5247\u5c31\u9084\u662f\u986f\u793a\u4e00\u6a23\u7684\u6578\u5b57\u3002\u610f\u601d\u662f\u8aaa\uff0c\u4e0d\u7ba1\u76ee\u524d\u6578\u5b57\u5982\u4f55\uff0c\u4e00\u5b9a\u8981\u4e00\u76f4\u505a\u986f\u793a\u7684\u52d5\u4f5c\u3002<\/p>\n<p>\u800c\u5728\u986f\u793a\u6642\uff0c\u4f7f\u7528\u6574\u9664\u548c\u53d6\u9918\u6578\u7684\u65b9\u6cd5\uff0c\u5206\u5225\u53d6\u5f9710\u4f4d\u6578\u548c\u500b\u4f4d\u6578\u518d\u986f\u793a\u4e4b\uff0c\u800c\u4e14\u986f\u793a\u7684\u6642\u5019\u8981\u9069\u7576\u5730\u5207\u63db\u8981\u9ede\u4eae\u7684\u662f\u54ea\u4e00\u9846\u4e03\u6bb5\u986f\u793a\u5668\u3002\u6700\u5f8c\uff0c\u5728\u5207\u63db\u4e4b\u5f8c\u8981delay(5)\uff0c\u505a\u4e00\u9ede\u5c0f\u5c0f\u7684\u5ef6\u9072\uff0c\u5207\u63dbLED\u624d\u4e0d\u6703\u51fa\u554f\u984c\u3002\u7576\u7136\u540c\u6a23\u7684\u65b9\u6cd5\u4e5f\u53ef\u4ee5\u7e7c\u7e8c\u5f80\u4e0b\u64f4\u5145\uff1a<\/p>\n<p><a href=\"https:\/\/104.es\/wp-content\/uploads\/2017\/08\/2017-08-30-11.58.56.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-1757 aligncenter\" src=\"https:\/\/104.es\/wp-content\/uploads\/2017\/08\/2017-08-30-11.58.56.jpg\" alt=\"\" width=\"800\" height=\"450\" srcset=\"https:\/\/104.es\/wp-content\/uploads\/2017\/08\/2017-08-30-11.58.56.jpg 800w, https:\/\/104.es\/wp-content\/uploads\/2017\/08\/2017-08-30-11.58.56-300x169.jpg 300w, https:\/\/104.es\/wp-content\/uploads\/2017\/08\/2017-08-30-11.58.56-768x432.jpg 768w, https:\/\/104.es\/wp-content\/uploads\/2017\/08\/2017-08-30-11.58.56-600x338.jpg 600w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/a><\/p>\n<p>\u5f71\u7247\u5982\u4e0b\uff1a<\/p>\n<p><iframe loading=\"lazy\" title=\"Arduino\u900f\u904e1\u7d447447\u63a7\u52364\u500b\u4e03\u6bb5\u986f\u793a\u5668\" width=\"640\" height=\"360\" src=\"https:\/\/www.youtube.com\/embed\/7Vm3D_5bRLw?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/p>\n<p>\u7a0b\u5f0f\u5982\u4e0b\uff1a<\/p>\n<p>[code]<br \/>\nbyte bcd_code[10][4] = {<br \/>\n  {0,0,0,0},<br \/>\n  {0,0,0,1},<br \/>\n  {0,0,1,0},<br \/>\n  {0,0,1,1},<br \/>\n  {0,1,0,0},<br \/>\n  {0,1,0,1},<br \/>\n  {0,1,1,0},<br \/>\n  {0,1,1,1},<br \/>\n  {1,0,0,0},<br \/>\n  {1,0,0,1}<br \/>\n};<br \/>\nunsigned  count = 0;<br \/>\nunsigned long time_prev = 0;<br \/>\nvoid setup() {<br \/>\n  pinMode(2, OUTPUT);<br \/>\n  pinMode(3, OUTPUT);<br \/>\n  pinMode(4, OUTPUT);<br \/>\n  pinMode(5, OUTPUT);<br \/>\n  pinMode(6, OUTPUT);<br \/>\n  pinMode(7, OUTPUT);<br \/>\n  pinMode(8, OUTPUT);<br \/>\n  pinMode(9, OUTPUT);<\/p>\n<p>  time_prev = millis();<br \/>\n}<\/p>\n<p>void disp(byte d) {<br \/>\n  for(byte i=0; i&lt;4; i++) {<br \/>\n    digitalWrite(5-i, bcd_code[d][i]);<br \/>\n  }<br \/>\n}<\/p>\n<p>void setLED(byte target) {<br \/>\n  for(byte i=6; i&lt;=9; i++) { if(target+6==i) digitalWrite(i, 1); else digitalWrite(i, 0); } } void loop() { unsigned long time_now = millis(); if(time_now &#8211; time_prev &gt; 200) {<br \/>\n    count ++;<br \/>\n    if(count&gt;9999) count=0;<br \/>\n    time_prev += 200;<br \/>\n  }<br \/>\n  unsigned temp = count;<br \/>\n  for(byte t=0; t&lt;4; t++) {<br \/>\n    unsigned d = temp \/10;<br \/>\n    byte m = temp % 10;<br \/>\n    setLED(t);<br \/>\n    disp(m);<br \/>\n    temp = d;<br \/>\n    delay(1);<br \/>\n  }<br \/>\n}<br \/>\n[\/code]<\/p>\n<p>\u6311\u6230\u770b\u770b\u5427\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728\u524d\u4e00\u7bc7\u6587\u7ae0\u4e2d\uff0c\u6211\u5011\u900f\u904e\u4e867447\u4ee54\u500b\u8173\u4f4d\u7684\u65b9\u5f0f\u4f86\u63a7\u52361\u500b\u4e03\u6bb5\u986f\u793a\u5668\uff0c\u90a3\u9ebc\u5982\u679c\u9700\u8981\u4f7f\u75282\u500b7\u6bb5\u986f\u793a\u5668\u7684\u8a71\uff0c\u662f\u5426\u9700\u89812\u98467447\u4ee5\u53ca2\u7d44\u96fb\u963b\u5462\uff1f\u7b54\u6848\u662f\u300c\u4e0d\u7528\u300d\uff0c\u53ea\u8981\u591a\u4f7f\u75282\u689d\u63a7\u5236\u7dda\uff0c\u548c\u591a\u4e00\u500b\u4e03\u6bb5\u986f\u793a\u5668\uff08\u597d\u50cf\u662f\u5ee2\u8a71\uff09\uff0c\u9084\u6709\u4e00\u4e9b\u9023\u63a5\u7dda\u5c31\u53ef\u4ee5\u4e86\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[3],"tags":[105,106,24],"class_list":["post-1750","post","type-post","status-publish","format-standard","hentry","category-arduino","tag-105","tag-106","tag-arduino"],"jetpack_featured_media_url":"","jetpack-related-posts":[],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/104.es\/index.php\/wp-json\/wp\/v2\/posts\/1750","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/104.es\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/104.es\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/104.es\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/104.es\/index.php\/wp-json\/wp\/v2\/comments?post=1750"}],"version-history":[{"count":0,"href":"https:\/\/104.es\/index.php\/wp-json\/wp\/v2\/posts\/1750\/revisions"}],"wp:attachment":[{"href":"https:\/\/104.es\/index.php\/wp-json\/wp\/v2\/media?parent=1750"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/104.es\/index.php\/wp-json\/wp\/v2\/categories?post=1750"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/104.es\/index.php\/wp-json\/wp\/v2\/tags?post=1750"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}