{"id":619,"date":"2025-09-18T10:00:27","date_gmt":"2025-09-18T02:00:27","guid":{"rendered":"https:\/\/www.640629.xyz\/?p=619"},"modified":"2025-09-18T10:02:08","modified_gmt":"2025-09-18T02:02:08","slug":"rgb-led%e7%b0%a1%e6%98%93%e6%8e%a7%e5%88%b6","status":"publish","type":"post","link":"https:\/\/www.640629.xyz\/?p=619","title":{"rendered":"RGB LED\u7c21\u6613\u63a7\u5236\u3001\u96a8\u6a5f\u51fd\u5f0f"},"content":{"rendered":"\n<p>\u96fb\u8def\u63a5\u7dda\u5716<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/img.640629.xyz\/i\/2024\/09\/19\/66eb734d0e538.png\" alt=\"\"\/><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<p>\u5e38\u6578\u5b9a\u7fa9<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"cpp\" class=\"language-cpp\">#define \u540d\u7a31 \u6578\u503c   \/\/ \u6c92\u6709\u5206\u865f\uff0c\u6c92\u6709\u7b49\u865f<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"cpp\" class=\"language-cpp\">#define R 21 \/\/ R \u63a5\u8173\n#define G 22 \/\/ G \u63a5\u8173\n#define B 23 \/\/ B \u63a5\u8173<\/code><\/pre>\n\n\n\n<p>\u984f\u8272\u63a7\u5236<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"cpp\" class=\"language-cpp\">\/\/ \u7d05\u8272\nanalogWrite(R, 255);\nanalogWrite(G, 0);\nanalogWrite(B, 0);\n\n\/\/ \u7da0\u8272\nanalogWrite(R, 0);\nanalogWrite(G, 255);\nanalogWrite(B, 0);\n\n\/\/ \u85cd\u8272\nanalogWrite(R, 0);\nanalogWrite(G, 0);\nanalogWrite(B, 255);\n\n\/\/ \u767d\u8272\nanalogWrite(R, 255);\nanalogWrite(G, 255);\nanalogWrite(B, 255);\n\n\/\/ \u9ed1\u8272\nanalogWrite(R, 0);\nanalogWrite(G, 0);\nanalogWrite(B, 0);\n\n\/\/ \u4efb\u610f\u984f\u8272(\u7531 r, g, b \u90193\u500b\u53c3\u6578\u81ea\u7531\u7d44\u5408)\nanalogWrite(R, r);  \/\/ r: 0 ~ 255\nanalogWrite(G, g);  \/\/ g: 0 ~ 255\nanalogWrite(B, b);  \/\/ b: 0 ~ 255<\/code><\/pre>\n\n\n\n<p>\u96a8\u6a5f\u51fd\u5f0f<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"cpp\" class=\"language-cpp\">random(max);      \/\/ \u96a8\u6a5f\u50b3\u56de 0 ~ max-1 \u4e4b\u9593\u7684\u6574\u6578\nrandom(min, max); \/\/ \u96a8\u6a5f\u50b3\u56de min ~ max-1 \u4e4b\u9593\u7684\u6574\u6578<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"cpp\" class=\"language-cpp\">r=random(256);    \/\/ \u96a8\u6a5f\u7522\u751f0~255\u7684\u6574\u6578\uff0c\u5132\u5b58\u5230 r\ng=random(256);    \/\/ \u96a8\u6a5f\u7522\u751f0~255\u7684\u6574\u6578\uff0c\u5132\u5b58\u5230 g\nb=random(256);    \/\/ \u96a8\u6a5f\u7522\u751f0~255\u7684\u6574\u6578\uff0c\u5132\u5b58\u5230 b<\/code><\/pre>\n\n\n\n<p>\u53c3\u8003\u7bc4\u4f8b<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"cpp\" class=\"language-cpp line-numbers\">#define R 21 \/\/ R \u63a5\u8173\n#define G 22 \/\/ G \u63a5\u8173\n#define B 23 \/\/ B \u63a5\u8173\nint r;  \/\/ \u5132\u5b58\u7d05\u8272\u6210\u5206\u7684\u53c3\u6578r\nint g;  \/\/ \u5132\u5b58\u7da0\u8272\u6210\u5206\u7684\u53c3\u6578g\nint b;  \/\/ \u5132\u5b58\u85cd\u8272\u6210\u5206\u7684\u53c3\u6578b\n\nvoid setup() {\n  pinMode(R, OUTPUT); \/\/ \u5ba3\u544aR\u70ba\u8f38\u51fa\u8173\n  pinMode(G, OUTPUT); \/\/ \u5ba3\u544aG\u70ba\u8f38\u51fa\u8173\n  pinMode(B, OUTPUT); \/\/ \u5ba3\u544aB\u70ba\u8f38\u51fa\u8173\n  Serial.begin(9600); \/\/ \u555f\u7528\u4e32\u5217\u57e0\u76e3\u770b\u8996\u7a97\n\n  \/\/ \u7d05\u8272\n  analogWrite(R, 255);\n  analogWrite(G, 0);\n  analogWrite(B, 0);\n  Serial.println(\"Red\");\n\n\n  delay(1000);\n\n  \/\/ \u7da0\u8272\n  analogWrite(R, 0);\n  analogWrite(G, 255);\n  analogWrite(B, 0);\n  Serial.println(\"Green\");\n\n  delay(1000);\n\n  \/\/ \u85cd\u8272\n  analogWrite(R, 0);\n  analogWrite(G, 0);\n  analogWrite(B, 255);\n  Serial.println(\"Blue\");\n\n  delay(1000);\n\n  \/\/ \u767d\u8272\n  analogWrite(R, 255);\n  analogWrite(G, 255);\n  analogWrite(B, 255);\n  Serial.println(\"White\");\n\n  delay(1000);\n\n  \/\/ \u9ed1\u8272\n  analogWrite(R, 0);\n  analogWrite(G, 0);\n  analogWrite(B, 0);\n  Serial.println(\"Black\");\n\n  delay(2000);\n}\n\nvoid loop() {\n  \/\/ \u4efb\u610f\u984f\u8272(\u7531 r, g, b \u90193\u500b\u53c3\u6578\u81ea\u7531\u7d44\u5408)\n  r = random(256);  \/\/ \u96a8\u6a5f\u7522\u751f0~255\u7684\u6574\u6578\uff0c\u5132\u5b58\u5230 r\n  g = random(256);  \/\/ \u96a8\u6a5f\u7522\u751f0~255\u7684\u6574\u6578\uff0c\u5132\u5b58\u5230 g\n  b = random(256);  \/\/ \u96a8\u6a5f\u7522\u751f0~255\u7684\u6574\u6578\uff0c\u5132\u5b58\u5230 b\n  \/\/ \u4efb\u610f\u984f\u8272(\u7531 r, g, b \u90193\u500b\u53c3\u6578\u81ea\u7531\u7d44\u5408)\n  analogWrite(R, r);  \/\/ r: 0 ~ 255\n  analogWrite(G, g);  \/\/ g: 0 ~ 255\n  analogWrite(B, b);  \/\/ b: 0 ~ 255\n  Serial.print(\"Random........\");\n  Serial.print(\"r=\");\n  Serial.print(r);\n  Serial.print(\" ,g=\");\n  Serial.print(g);\n  Serial.print(\" ,b=\");\n  Serial.println(b);\n\n  delay(1000);\n}<\/code><\/pre>\n\n\n\n<p>\u4f5c\u696d\u7df4\u7fd2\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u958b\u6a5f\u5f8c\uff0c\u4f9d\u5e8f\u986f\u793a\u7d05\u3001\u7da0\u3001\u85cd\u3001\u767d\u3001\u9ed15\u7a2e\u984f\u8272\u4e00\u6b21\u3002<\/li>\n\n\n\n<li>\u5faa\u74b0\u986f\u793a\u4e0b\u5217\u72c0\u614b\uff1a\n<ul class=\"wp-block-list\">\n<li>\u7d05\u8272\u547c\u54381\u6b21(2~3\u79d2)<\/li>\n\n\n\n<li>\u7da0\u82722\u79d2<\/li>\n\n\n\n<li>\u85cd\u8272\u547c\u54381\u6b21(2~3\u79d2)<\/li>\n\n\n\n<li>\u767d\u82722\u79d2<\/li>\n\n\n\n<li>\u96a8\u6a5f\u984f\u82722\u79d2<\/li>\n\n\n\n<li>\u9ed1\u82722\u79d2<\/li>\n\n\n\n<li>\u96a8\u6a5f\u984f\u82722\u79d2<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\u5404\u984f\u8272\u7684\u72c0\u614b\u5fc5\u9808\u986f\u793a\u5728\u76e3\u770b\u8996\u7a97\u4e0a\u3002<\/li>\n\n\n\n<li>\u5728Wokwi\u7db2\u7ad9\u4e0a\u9032\u884c\u6a21\u64ec\uff0c\u4e26\u5b8c\u6210\u5be6\u9ad4\u63a5\u7dda\u3002<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"<p>\u96fb\u8def\u63a5\u7dda\u5716 \u5e38\u6578\u5b9a\u7fa9 \u984f\u8272\u63a7\u5236 \u96a8\u6a5f\u51fd\u5f0f \u53c3\u8003\u7bc4\u4f8b \u4f5c\u696d\u7df4\u7fd2\uff1a<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-619","post","type-post","status-publish","format-standard","hentry","category-programming"],"_links":{"self":[{"href":"https:\/\/www.640629.xyz\/index.php?rest_route=\/wp\/v2\/posts\/619","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.640629.xyz\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.640629.xyz\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.640629.xyz\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.640629.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=619"}],"version-history":[{"count":21,"href":"https:\/\/www.640629.xyz\/index.php?rest_route=\/wp\/v2\/posts\/619\/revisions"}],"predecessor-version":[{"id":651,"href":"https:\/\/www.640629.xyz\/index.php?rest_route=\/wp\/v2\/posts\/619\/revisions\/651"}],"wp:attachment":[{"href":"https:\/\/www.640629.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=619"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.640629.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=619"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.640629.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=619"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}