{"id":1556,"date":"2026-04-10T10:11:24","date_gmt":"2026-04-10T02:11:24","guid":{"rendered":"https:\/\/mayaharper.showcasingme.net\/cn\/understanding-timing-diagrams-iot-protocols\/"},"modified":"2026-04-10T10:11:24","modified_gmt":"2026-04-10T02:11:24","slug":"understanding-timing-diagrams-iot-protocols","status":"publish","type":"post","link":"https:\/\/mayaharper.showcasingme.net\/cn\/understanding-timing-diagrams-iot-protocols\/","title":{"rendered":"\u7406\u89e3\u65f6\u5e8f\u56fe\uff1a\u7269\u8054\u7f51\u534f\u8bae\u80cc\u540e\u7684\u9690\u85cf\u903b\u8f91"},"content":{"rendered":"<p>\u5d4c\u5165\u5f0f\u7cfb\u7edf\u548c\u7269\u8054\u7f51\uff08IoT\uff09\u8bbe\u5907\u4e25\u91cd\u4f9d\u8d56\u7cbe\u786e\u7684\u901a\u4fe1\u3002\u5982\u679c\u6ca1\u6709\u5bf9\u6570\u636e\u4f55\u65f6\u5230\u8fbe\u4ee5\u53ca\u4fe1\u53f7\u4f55\u65f6\u6539\u53d8\u72b6\u6001\u7684\u5171\u540c\u7406\u89e3\uff0c\u8bbe\u5907\u5c31\u65e0\u6cd5\u6709\u6548\u5730\u76f8\u4e92\u4ea4\u6d41\u3002\u8fd9\u5c31\u662f\u65f6\u5e8f\u56fe\u53d8\u5f97\u81f3\u5173\u91cd\u8981\u7684\u539f\u56e0\u3002\u5b83\u4eec\u662f\u6570\u5b57\u901a\u4fe1\u7684\u84dd\u56fe\uff0c\u5c55\u793a\u4e86\u4fe1\u53f7\u968f\u65f6\u95f4\u53d8\u5316\u7684\u5173\u7cfb\u3002\ud83d\udcc8<\/p>\n<p>\u672c\u6307\u5357\u63a2\u8ba8\u4e86\u5982\u4f55\u9605\u8bfb\u3001\u89e3\u8bfb\u548c\u5229\u7528\u65f6\u5e8f\u56fe\uff0c\u4ee5\u786e\u4fdd\u5fae\u63a7\u5236\u5668\u3001\u4f20\u611f\u5668\u548c\u901a\u4fe1\u6a21\u5757\u4e4b\u95f4\u7684\u7a33\u5b9a\u8fde\u63a5\u3002\u65e0\u8bba\u60a8\u662f\u5728\u8bbe\u8ba1\u65b0\u4ea7\u54c1\u8fd8\u662f\u8c03\u8bd5\u68d8\u624b\u7684\u8fde\u63a5\u95ee\u9898\uff0c\u638c\u63e1\u8fd9\u4e9b\u89c6\u89c9\u8868\u793a\u65b9\u6cd5\u90fd\u81f3\u5173\u91cd\u8981\u3002<\/p>\n<figure class=\"wp-block-image aligncenter\"><img alt=\"Hand-drawn infographic explaining timing diagrams for IoT protocols: visual guide to reading signal waveforms, clock edges, data validity windows, and protocol comparisons for I2C, SPI, and UART with troubleshooting tips and best practices for embedded systems engineers\" decoding=\"async\" src=\"https:\/\/mayaharper.showcasingme.net\/wp-content\/uploads\/2026\/04\/timing-diagrams-iot-protocols-infographic-hand-drawn.jpg\"\/><\/figure>\n<h2>\u4ec0\u4e48\u662f\u65f6\u5e8f\u56fe\uff1f\ud83d\udcca<\/h2>\n<p>\u65f6\u5e8f\u56fe\u662f\u6570\u5b57\u4fe1\u53f7\u968f\u65f6\u95f4\u53d8\u5316\u7684\u56fe\u5f62\u5316\u8868\u793a\u3002\u4e0e\u5c55\u793a\u8fde\u63a5\u5173\u7cfb\u7684\u903b\u8f91\u56fe\u4e0d\u540c\uff0c\u65f6\u5e8f\u56fe\u5173\u6ce8\u7684\u662f<em>\u4f55\u65f6<\/em>\u3002\u5b83\u4eec\u5c06\u7535\u538b\u7535\u5e73\uff08\u9ad8\/\u4f4e\uff09\u4e0e\u65f6\u95f4\u8f74\u76f8\u5bf9\u5e94\uff0c\u4f7f\u5de5\u7a0b\u5e08\u80fd\u591f\u53ef\u89c6\u5316\u4e8b\u4ef6\u7684\u987a\u5e8f\u3002<\/p>\n<p>\u8fd9\u4e9b\u56fe\u5728\u5d4c\u5165\u5f0f\u7cfb\u7edf\u4e2d\u5c24\u5176\u5173\u952e\uff0c\u56e0\u4e3a\u6570\u5b57\u903b\u8f91\u4ee5\u6781\u9ad8\u7684\u901f\u5ea6\u8fd0\u884c\u3002\u51e0\u7eb3\u79d2\u7684\u5ef6\u8fdf\u5c31\u53ef\u80fd\u5bfc\u81f4\u6570\u636e\u5305\u635f\u574f\u3002\u901a\u8fc7\u7ed8\u5236\u8fd9\u4e9b\u65f6\u523b\uff0c\u5de5\u7a0b\u5e08\u53ef\u4ee5\u9a8c\u8bc1\u6240\u6709\u7ec4\u4ef6\u662f\u5426\u7b26\u5408\u6240\u9700\u89c4\u8303\u3002<\/p>\n<ul>\n<li><strong>\u65f6\u95f4\u8f74\uff1a<\/strong> \u901a\u5e38\u6c34\u5e73\u8fd0\u884c\uff0c\u4ece\u5de6\u5411\u53f3\u3002<\/li>\n<li><strong> \u4fe1\u53f7\u7ebf\uff1a<\/strong> \u6c34\u5e73\u7ebf\u4ee3\u8868\u5355\u4e2a\u5bfc\u7ebf\u6216\u7f51\u7edc\u3002<\/li>\n<li><strong> \u903b\u8f91\u7535\u5e73\uff1a<\/strong> \u9ad8\u7535\u538b\uff08\u903b\u8f911\uff09\u548c\u4f4e\u7535\u538b\uff08\u903b\u8f910\uff09\u3002<\/li>\n<li><strong> \u8f6c\u6362\uff1a<\/strong> \u4fe1\u53f7\u4ece\u4f4e\u7535\u5e73\u5207\u6362\u5230\u9ad8\u7535\u5e73\u6216\u53cd\u4e4b\u7684\u77ac\u95f4\u3002<\/li>\n<\/ul>\n<h2>\u4e3a\u4ec0\u4e48\u65f6\u5e8f\u56fe\u5728\u7269\u8054\u7f51\u4e2d\u81f3\u5173\u91cd\u8981 \ud83c\udf10<\/h2>\n<p>\u5728\u7269\u8054\u7f51\u9886\u57df\uff0c\u8bbe\u5907\u901a\u5e38\u5728\u6709\u9650\u7684\u7535\u6e90\u548c\u5904\u7406\u80fd\u529b\u4e0b\u8fd0\u884c\u3002\u9ad8\u6548\u7684\u901a\u4fe1\u4e0d\u4ec5\u662f\u4e00\u79cd\u5962\u4f88\uff0c\u66f4\u662f\u4e00\u79cd\u5fc5\u9700\u3002\u65f6\u5e8f\u56fe\u5e2e\u52a9\u5de5\u7a0b\u5e08\u4f18\u5316\u8fd9\u4e9b\u9650\u5236\u3002<\/p>\n<h3>1. \u786e\u4fdd\u6570\u636e\u5b8c\u6574\u6027 \ud83d\udd12<\/h3>\n<p>\u7269\u8054\u7f51\u7f51\u7edc\u901a\u5e38\u5728\u566a\u58f0\u73af\u5883\u4e2d\u4f20\u8f93\u6570\u636e\u3002\u7535\u78c1\u5e72\u6270\uff08EMI\uff09\u53ef\u80fd\u5bfc\u81f4\u4f4d\u7ffb\u8f6c\u6216\u4ea7\u751f\u6bdb\u523a\u3002\u65f6\u5e8f\u56fe\u53ef\u4ee5\u63ed\u793a\u5efa\u7acb\u65f6\u95f4\u548c\u4fdd\u6301\u65f6\u95f4\u662f\u5426\u6ee1\u8db3\u8981\u6c42\u3002\u5982\u679c\u4fe1\u53f7\u5728\u65f6\u949f\u8fb9\u6cbf\u9644\u8fd1\u53d1\u751f\u6539\u53d8\uff0c\u63a5\u6536\u8bbe\u5907\u53ef\u80fd\u4f1a\u8bef\u89e3\u6570\u636e\u3002\u8fd9\u4e9b\u56fe\u6709\u52a9\u4e8e\u8bc6\u522b\u8fd9\u4e9b\u9ad8\u98ce\u9669\u65f6\u6bb5\u3002<\/p>\n<h3>2. \u534f\u8bae\u517c\u5bb9\u6027 \ud83e\udd1d<\/h3>\n<p>\u4e0d\u540c\u7684\u534f\u8bae\u6709\u4e0d\u540c\u7684\u89c4\u5219\u3002I2C\u9700\u8981\u7279\u5b9a\u7684\u8d77\u59cb\u548c\u505c\u6b62\u6761\u4ef6\u3002SPI\u4f9d\u8d56\u4e8e\u65f6\u949f\u6781\u6027\u548c\u76f8\u4f4d\u3002\u5982\u679c\u6ca1\u6709\u65f6\u5e8f\u56fe\uff0c\u5f88\u96be\u9a8c\u8bc1\u4f20\u611f\u5668\u662f\u5426\u7b26\u5408\u5fae\u63a7\u5236\u5668\u7684\u9884\u671f\u3002\u8fd9\u4e9b\u56fe\u5145\u5f53\u4e86\u786c\u4ef6\u7ec4\u4ef6\u4e4b\u95f4\u7684\u534f\u8bae\u5408\u540c\u3002<\/p>\n<h3>3. \u8c03\u8bd5\u901a\u4fe1\u9519\u8bef \ud83d\udd0d<\/h3>\n<p>\u5f53\u901a\u4fe1\u5931\u8d25\u65f6\uff0c\u901a\u5e38\u5e76\u975e\u968f\u673a\u53d1\u751f\uff0c\u800c\u5f80\u5f80\u662f\u65f6\u5e8f\u8fdd\u89c4\u6240\u81f4\u3002\u901a\u8fc7\u5728\u793a\u6ce2\u5668\u4e0a\u6355\u83b7\u5b9e\u9645\u4fe1\u53f7\uff0c\u5e76\u5c06\u5176\u4e0e\u7406\u8bba\u65f6\u5e8f\u56fe\u53e0\u52a0\uff0c\u5de5\u7a0b\u5e08\u53ef\u4ee5\u7cbe\u786e\u5730\u5b9a\u4f4d\u540c\u6b65\u4e22\u5931\u7684\u4f4d\u7f6e\u3002<\/p>\n<h2>\u65f6\u5e8f\u56fe\u7684\u5173\u952e\u7ec4\u6210\u90e8\u5206 \u2699\ufe0f<\/h2>\n<p>\u8981\u6709\u6548\u9605\u8bfb\u8fd9\u4e9b\u56fe\uff0c\u5fc5\u987b\u7406\u89e3\u7528\u4e8e\u6784\u5efa\u5b83\u4eec\u7684\u6807\u51c6\u5143\u7d20\u3002\u65e0\u8bba\u534f\u8bae\u5982\u4f55\uff0c\u6bcf\u4e2a\u56fe\u90fd\u4f9d\u8d56\u4e8e\u8fd9\u4e9b\u6838\u5fc3\u6982\u5ff5\u3002<\/p>\n<h3>\u65f6\u949f\u4fe1\u53f7\uff08CLK\uff09 \ud83d\udd70\ufe0f<\/h3>\n<p>\u8bb8\u591a\u7269\u8054\u7f51\u534f\u8bae\u662f\u540c\u6b65\u7684\uff0c\u8fd9\u610f\u5473\u7740\u5b83\u4eec\u4f9d\u8d56\u65f6\u949f\u4fe1\u53f7\u6765\u534f\u8c03\u6570\u636e\u4f20\u8f93\u3002\u65f6\u949f\u51b3\u5b9a\u4e86\u901a\u4fe1\u7684\u901f\u5ea6\u3002<\/p>\n<ul>\n<li><strong>\u9891\u7387\uff1a<\/strong> \u6bcf\u79d2\u53d1\u751f\u7684\u5468\u671f\u6570\uff08Hz\u3001kHz\u3001MHz\uff09\u3002<\/li>\n<li><strong>\u5360\u7a7a\u6bd4\uff1a<\/strong> \u9ad8\u7535\u5e73\u65f6\u95f4\u4e0e\u603b\u5468\u671f\u7684\u6bd4\u503c\u3002<\/li>\n<li><strong> \u8fb9\u6cbf\uff1a<\/strong> \u4fe1\u53f7\u901a\u5e38\u5728\u4e0a\u5347\u6cbf\uff08\u4f4e\u5230\u9ad8\uff09\u6216\u4e0b\u964d\u6cbf\uff08\u9ad8\u5230\u4f4e\uff09\u89e6\u53d1\u3002<\/li>\n<\/ul>\n<h3> \u6570\u636e\u7ebf\uff08SDA\u3001MOSI\u3001TX\uff09 \ud83d\udce1<\/h3>\n<p> \u8fd9\u4e9b\u662f\u4f20\u8f93\u5b9e\u9645\u4fe1\u606f\u7684\u5bfc\u7ebf\u3002\u5728\u65f6\u5e8f\u56fe\u4e2d\uff0c\u4f60\u4f1a\u770b\u5230\u9ad8\u7535\u5e73\u548c\u4f4e\u7535\u5e73\u7684\u6a21\u5f0f\uff0c\u4ee3\u8868\u4e8c\u8fdb\u5236\u76841\u548c0\u3002<\/p>\n<h3> \u63a7\u5236\u4fe1\u53f7\uff08CS\u3001EN\u3001RD\u3001WR\uff09 \ud83d\uded1<\/h3>\n<p> \u63a7\u5236\u7ebf\u7528\u4e8e\u7ba1\u7406\u6570\u636e\u6d41\u3002\u4f8b\u5982\uff0c\u7247\u9009\uff08CS\uff09\u7ebf\u62c9\u4f4e\u53ef\u542f\u7528\u5171\u4eab\u603b\u7ebf\u4e0a\u7684\u7279\u5b9a\u8bbe\u5907\u3002\u8bfb\/\u5199\uff08R\/W\uff09\u7ebf\u544a\u8bc9\u8bbe\u5907\u662f\u53d1\u9001\u6570\u636e\u8fd8\u662f\u63a5\u6536\u6570\u636e\u3002<\/p>\n<h3> \u5efa\u7acb\u65f6\u95f4\u548c\u4fdd\u6301\u65f6\u95f4 \u23f1\ufe0f<\/h3>\n<p> \u8fd9\u4e9b\u662f\u5173\u952e\u7684\u88d5\u91cf\u3002<strong> \u5efa\u7acb\u65f6\u95f4<\/strong> \u662f\u6307\u5728\u65f6\u949f\u8fb9\u6cbf\u4e4b\u524d\u6570\u636e\u5fc5\u987b\u4fdd\u6301\u7a33\u5b9a\u7684\u65f6\u95f4\u3002<strong> \u4fdd\u6301\u65f6\u95f4<\/strong> \u662f\u6307\u5728\u65f6\u949f\u8fb9\u6cbf\u4e4b\u540e\u6570\u636e\u5fc5\u987b\u4fdd\u6301\u7a33\u5b9a\u7684\u65f6\u95f4\u3002\u8fdd\u53cd\u8fd9\u4e9b\u8981\u6c42\u4f1a\u5bfc\u81f4\u4e9a\u7a33\u6001\u3002<\/p>\n<h2> \u6df1\u5165\u89e3\u6790\uff1a\u5e38\u89c1\u7269\u8054\u7f51\u534f\u8bae\u53ca\u5176\u65f6\u5e8f \ud83d\udd0c<\/h2>\n<p> \u4e0d\u540c\u7684\u901a\u4fe1\u6807\u51c6\u5177\u6709\u72ec\u7279\u7684\u65f6\u5e8f\u8981\u6c42\u3002\u4ee5\u4e0b\u662f\u5d4c\u5165\u5f0f\u7cfb\u7edf\u4e2d\u6700\u5e38\u89c1\u7684\u4e09\u79cd\u534f\u8bae\u7684\u89e3\u6790\u3002<\/p>\n<h3>1. I2C\uff08\u96c6\u6210\u7535\u8def\u95f4\u901a\u4fe1\uff09 \ud83e\udde9<\/h3>\n<p> I2C \u5e7f\u6cdb\u7528\u4e8e\u8fde\u63a5\u4f4e\u901f\u5916\u8bbe\uff0c\u5982\u4f20\u611f\u5668\u3002\u5b83\u4f7f\u7528\u4e24\u6761\u7ebf\u8def\uff1aSDA\uff08\u6570\u636e\uff09\u548c SCL\uff08\u65f6\u949f\uff09\u3002<\/p>\n<table>\n<tr>\n<th> \u7279\u6027<\/th>\n<th> \u65f6\u5e8f\u7279\u6027<\/th>\n<\/tr>\n<tr>\n<td> \u8d77\u59cb\u6761\u4ef6<\/td>\n<td> \u5f53 SCL \u4e3a\u9ad8\u7535\u5e73\u65f6\uff0cSDA \u4ece\u9ad8\u7535\u5e73\u8df3\u53d8\u4e3a\u4f4e\u7535\u5e73\u3002<\/td>\n<\/tr>\n<tr>\n<td> \u505c\u6b62\u6761\u4ef6<\/td>\n<td> \u5f53 SCL \u4e3a\u9ad8\u7535\u5e73\u65f6\uff0cSDA \u4ece\u4f4e\u7535\u5e73\u8df3\u53d8\u4e3a\u9ad8\u7535\u5e73\u3002<\/td>\n<\/tr>\n<tr>\n<td> \u6570\u636e\u6709\u6548\u6027<\/td>\n<td> \u5f53 SCL \u4e3a\u9ad8\u7535\u5e73\u65f6\uff0c\u6570\u636e\u5fc5\u987b\u4fdd\u6301\u7a33\u5b9a\u3002\u53ea\u6709\u5f53 SCL \u4e3a\u4f4e\u7535\u5e73\u65f6\uff0c\u6570\u636e\u624d\u80fd\u6539\u53d8\u3002<\/td>\n<\/tr>\n<tr>\n<td> \u5e94\u7b54\uff08ACK\uff09<\/td>\n<td> \u63a5\u6536\u65b9\u5728\u7b2c9\u4e2a\u65f6\u949f\u8109\u51b2\u671f\u95f4\u5c06 SDA \u62c9\u4f4e\u3002<\/td>\n<\/tr>\n<\/table>\n<p> \u8d77\u59cb\u6761\u4ef6\u8868\u793a\u4e8b\u52a1\u7684\u5f00\u59cb\uff0c\u505c\u6b62\u6761\u4ef6\u8868\u793a\u4e8b\u52a1\u7684\u7ed3\u675f\u3002\u5173\u952e\u7684\u662f\uff0c\u6570\u636e\u7ebf\u53ea\u6709\u5728\u65f6\u949f\u4e3a\u4f4e\u7535\u5e73\u65f6\u624d\u5141\u8bb8\u6539\u53d8\u72b6\u6001\u3002\u5982\u679c\u8bbe\u5907\u5728\u65f6\u949f\u4e3a\u9ad8\u7535\u5e73\u65f6\u6539\u53d8\u6570\u636e\uff0c\u4f1a\u6a21\u62df\u51fa\u8d77\u59cb\u6216\u505c\u6b62\u6761\u4ef6\uff0c\u9020\u6210\u6df7\u4e71\u3002<\/p>\n<h3>2. SPI\uff08\u4e32\u884c\u5916\u8bbe\u63a5\u53e3\uff09 \ud83d\ude80<\/h3>\n<p>SPI\u6bd4I2C\u66f4\u5feb\uff0c\u7528\u4e8e\u9ad8\u5e26\u5bbd\u8bbe\u5907\uff0c\u5982SD\u5361\u6216\u663e\u793a\u5668\u3002\u5b83\u901a\u5e38\u4f7f\u7528\u56db\u6761\u7ebf\u8def\uff1aMOSI\u3001MISO\u3001SCK\u548cCS\u3002<\/p>\n<ul>\n<li><strong>\u65f6\u949f\u6781\u6027\uff08CPOL\uff09\uff1a<\/strong> \u5b9a\u4e49\u65f6\u949f\u7684\u7a7a\u95f2\u72b6\u6001\u3002\u5b83\u662f\u9ad8\u7535\u5e73\u8fd8\u662f\u4f4e\u7535\u5e73\uff1f<\/li>\n<li><strong>\u65f6\u949f\u76f8\u4f4d\uff08CPHA\uff09\uff1a<\/strong> \u5b9a\u4e49\u6570\u636e\u91c7\u6837\u7684\u65f6\u523b\u3002\u662f\u5728\u7b2c\u4e00\u4e2a\u8fd8\u662f\u7b2c\u4e8c\u4e2a\u65f6\u949f\u8fb9\u6cbf\uff1f<\/li>\n<\/ul>\n<p>SPI\u6709\u56db\u79cd\u5de5\u4f5c\u6a21\u5f0f\uff0c\u7531CPOL\u548cCPHA\u7684\u7ec4\u5408\u51b3\u5b9a\u3002\u65f6\u5e8f\u56fe\u5fc5\u987b\u6e05\u695a\u5730\u8868\u660e\u7a7a\u95f2\u72b6\u6001\u548c\u6709\u6548\u8fb9\u6cbf\u3002\u4e0eI2C\u4e0d\u540c\uff0cSPI\u6ca1\u6709\u5185\u7f6e\u7684\u5e94\u7b54\u4f4d\uff1b\u4e3b\u8bbe\u5907\u53ea\u9700\u671f\u671b\u6536\u5230\u6570\u636e\u5373\u53ef\u3002<\/p>\n<h3>3. UART\uff08\u901a\u7528\u5f02\u6b65\u6536\u53d1\u5668\uff09 \ud83d\udcdf<\/h3>\n<p>UART\u662f\u5f02\u6b65\u7684\uff0c\u8fd9\u610f\u5473\u7740\u5b83\u4e0d\u4f7f\u7528\u5171\u4eab\u65f6\u949f\u3002\u76f8\u53cd\uff0c\u5b83\u4f9d\u8d56\u4e8e\u9884\u5148\u7ea6\u5b9a\u7684\u6ce2\u7279\u7387\u3002<\/p>\n<ul>\n<li><strong>\u7a7a\u95f2\u72b6\u6001\uff1a<\/strong> \u901a\u5e38\u4e3a\u9ad8\u7535\u5e73\u3002<\/li>\n<li><strong>\u8d77\u59cb\u4f4d\uff1a<\/strong> \u4ece\u9ad8\u7535\u5e73\u5230\u4f4e\u7535\u5e73\u7684\u8df3\u53d8\u8868\u793a\u4e00\u4e2a\u5b57\u8282\u7684\u5f00\u59cb\u3002<\/li>\n<li><strong>\u505c\u6b62\u4f4d\uff1a<\/strong> \u56de\u5230\u9ad8\u7535\u5e73\u7684\u8df3\u53d8\u6807\u5fd7\u7740\u7ed3\u675f\u3002<\/li>\n<\/ul>\n<p>\u65f6\u5e8f\u5728\u8fd9\u91cc\u81f3\u5173\u91cd\u8981\uff0c\u56e0\u4e3a\u6ca1\u6709\u65f6\u949f\u6765\u540c\u6b65\u4e24\u4e2a\u8bbe\u5907\u3002\u5982\u679c\u6ce2\u7279\u7387\u5373\u4f7f\u6709\u5fae\u5c0f\u504f\u5dee\uff0c\u63a5\u6536\u7aef\u4e5f\u4f1a\u5728\u9519\u8bef\u7684\u65f6\u95f4\u91c7\u6837\u6bd4\u7279\uff0c\u5bfc\u81f4\u9519\u8bef\u3002\u65f6\u5e8f\u56fe\u663e\u793a\u4e86\u8d77\u59cb\u4f4d\u548c\u505c\u6b62\u4f4d\u7684\u8109\u51b2\u5bbd\u5ea6\u76f8\u5bf9\u4e8e\u6570\u636e\u4f4d\u7684\u60c5\u51b5\u3002<\/p>\n<h2>\u5982\u4f55\u4e00\u6b65\u6b65\u9605\u8bfb\u65f6\u5e8f\u56fe \ud83e\uddd0<\/h2>\n<p>\u9762\u5bf9\u65b0\u7684\u534f\u8bae\u89c4\u8303\u65f6\uff0c\u9075\u5faa\u8fd9\u79cd\u7cfb\u7edf\u5316\u7684\u65b9\u6cd5\u6765\u89e3\u6790\u65f6\u5e8f\u56fe\u3002<\/p>\n<ol>\n<li><strong>\u8bc6\u522b\u65f6\u949f\uff1a<\/strong> \u627e\u5230\u5468\u671f\u6027\u4fe1\u53f7\u3002\u786e\u5b9a\u5176\u9891\u7387\u548c\u5360\u7a7a\u6bd4\u3002<\/li>\n<li><strong>\u786e\u5b9a\u6709\u6548\u8fb9\u6cbf\uff1a<\/strong> \u67e5\u627e\u6307\u793a\u54ea\u4e2a\u8fb9\u6cbf\u89e6\u53d1\u52a8\u4f5c\u7684\u7bad\u5934\u6216\u6ce8\u91ca\u3002\u662f\u4e0a\u5347\u6cbf\u8fd8\u662f\u4e0b\u964d\u6cbf\uff1f<\/li>\n<li><strong>\u68c0\u67e5\u6570\u636e\u6709\u6548\u7a97\u53e3\uff1a<\/strong> \u5bfb\u627e\u6570\u636e\u7a33\u5b9a\u7684\u9634\u5f71\u533a\u57df\u3002\u8fd9\u662f\u63a5\u6536\u5668\u53ef\u4ee5\u8bfb\u53d6\u6570\u503c\u7684\u5730\u65b9\u3002<\/li>\n<li><strong>\u5b9a\u4f4d\u63a7\u5236\u4fe1\u53f7\uff1a<\/strong> \u8bc6\u522b\u7247\u9009\u3001\u590d\u4f4d\u6216\u4f7f\u80fd\u7ebf\u3002\u6ce8\u610f\u5b83\u4eec\u76f8\u5bf9\u4e8e\u65f6\u949f\u4f55\u65f6\u53d8\u4e3a\u6709\u6548\u3002<\/li>\n<li><strong>\u9a8c\u8bc1\u88d5\u91cf\uff1a<\/strong> \u68c0\u67e5\u5efa\u7acb\u65f6\u95f4\u548c\u4fdd\u6301\u65f6\u95f4\u7684\u6ce8\u91ca\u3002\u786e\u4fdd\u7269\u7406\u5b9e\u73b0\u80fd\u591f\u6ee1\u8db3\u8fd9\u4e9b\u8981\u6c42\u3002<\/li>\n<\/ol>\n<h2>\u4f7f\u7528\u65f6\u5e8f\u56fe\u8fdb\u884c\u6545\u969c\u6392\u67e5 \ud83d\udee0\ufe0f<\/h2>\n<p>\u5f53\u7cfb\u7edf\u65e0\u6cd5\u901a\u4fe1\u65f6\uff0c\u65f6\u5e8f\u56fe\u662f\u60a8\u4e3b\u8981\u7684\u8bca\u65ad\u5de5\u5177\u3002\u4ee5\u4e0b\u662f\u5e38\u89c1\u7684\u6545\u969c\u6a21\u5f0f\u4ee5\u53ca\u65f6\u5e8f\u56fe\u5982\u4f55\u5e2e\u52a9\u8bc6\u522b\u5b83\u4eec\u3002<\/p>\n<h3>1. \u5c16\u5cf0\u548c\u566a\u58f0 \u26a1<\/h3>\n<p>\u4fe1\u53f7\u7ebf\u4e0a\u7684\u77ed\u5c16\u5cf0\u53ef\u80fd\u88ab\u89e3\u91ca\u4e3a\u6709\u6548\u8fb9\u6cbf\u3002\u65f6\u5e8f\u56fe\u6709\u52a9\u4e8e\u533a\u5206\u771f\u5b9e\u7684\u4fe1\u53f7\u8df3\u53d8\u548c\u7535\u6c14\u566a\u58f0\u3002\u5982\u679c\u8109\u51b2\u5bbd\u5ea6\u5c0f\u4e8e\u6700\u5c0f\u89c4\u683c\uff0c\u5f88\u53ef\u80fd\u662f\u566a\u58f0\u3002<\/p>\n<h3>2. \u65f6\u949f\u504f\u79fb \ud83c\udfc1<\/h3>\n<p>\u65f6\u949f\u504f\u79fb\u53d1\u751f\u5728\u65f6\u949f\u4fe1\u53f7\u5728\u4e0d\u540c\u8bbe\u5907\u4e0a\u5230\u8fbe\u65f6\u95f4\u4e0d\u540c\u65f6\u3002\u5728\u65f6\u5e8f\u56fe\u4e2d\uff0c\u8fd9\u8868\u73b0\u4e3a\u65f6\u949f\u8fb9\u6cbf\u76f8\u5bf9\u4e8e\u6570\u636e\u8fb9\u6cbf\u7684\u504f\u79fb\u3002\u5982\u679c\u504f\u79fb\u8d85\u8fc7\u65f6\u5e8f\u9884\u7b97\uff0c\u7cfb\u7edf\u5c06\u5931\u6548\u3002<\/p>\n<h3>3. \u6ce2\u7279\u7387\u4e0d\u5339\u914d\uff08UART\uff09 \ud83d\udcc9<\/h3>\n<p>\u5982\u679c\u53d1\u9001\u7aef\u548c\u63a5\u6536\u7aef\u672a\u5b8c\u5168\u540c\u6b65\uff0c\u91c7\u6837\u70b9\u4f1a\u6f02\u79fb\u3002\u968f\u7740\u65f6\u95f4\u63a8\u79fb\uff0c\u63a5\u6536\u7aef\u53ef\u80fd\u4f1a\u91c7\u6837\u4e0b\u4e00\u4e2a\u6bd4\u7279\u800c\u975e\u5f53\u524d\u6bd4\u7279\u3002\u65f6\u5e8f\u56fe\u53ef\u76f4\u89c2\u663e\u793a\u8fd9\u79cd\u6f02\u79fb\uff0c\u8868\u660e\u9519\u8bef\u6bd4\u7279\u7684\u7d2f\u79ef\u3002<\/p>\n<h3>4. \u4e0a\u62c9\u7535\u963b\u95ee\u9898\uff08I2C\uff09 \ud83e\uddf1<\/h3>\n<p>I2C\u7ebf\u8def\u4e3a\u5f00\u6f0f\u7ed3\u6784\uff0c\u9700\u8981\u4e0a\u62c9\u7535\u963b\u3002\u5982\u679c\u963b\u503c\u8fc7\u5927\uff0c\u4fe1\u53f7\u4e0a\u5347\u7f13\u6162\u3002\u65f6\u5e8f\u56fe\u4f1a\u663e\u793a\u4e0a\u5347\u65f6\u95f4\u8fc7\u6162\uff0c\u53ef\u80fd\u5bfc\u81f4\u4fe1\u53f7\u5728\u65f6\u949f\u8fb9\u6cbf\u5230\u6765\u524d\u672a\u80fd\u8fbe\u5230\u9ad8\u7535\u5e73\u9608\u503c\u3002<\/p>\n<h2>\u8bbe\u8ba1\u53ef\u9760\u65f6\u5e8f\u7684\u6700\u4f73\u5b9e\u8df5 \ud83d\udcdd<\/h2>\n<p>\u5b9e\u73b0\u65f6\u5e8f\u6210\u529f\u9700\u8981\u4ece\u539f\u7406\u56fe\u9636\u6bb5\u5230PCB\u5e03\u5c40\u90fd\u6ce8\u91cd\u7ec6\u8282\u3002\u9075\u5faa\u4ee5\u4e0b\u6307\u5357\u53ef\u6700\u5927\u9650\u5ea6\u51cf\u5c11\u95ee\u9898\u3002<\/p>\n<ul>\n<li><strong>\u5339\u914d\u8d70\u7ebf\u957f\u5ea6\uff1a<\/strong> \u5bf9\u4e8e\u5e76\u884c\u603b\u7ebf\uff0c\u4fdd\u6301\u8d70\u7ebf\u7b49\u957f\u4ee5\u907f\u514d\u504f\u79fb\uff1b\u5bf9\u4e8e\u4e32\u884c\u603b\u7ebf\uff0c\u786e\u4fdd\u65f6\u949f\u8def\u5f84\u5e72\u51c0\u3002<\/li>\n<li><strong>\u7ba1\u7406\u963b\u6297\uff1a<\/strong> \u4f7f\u7528\u53d7\u63a7\u963b\u6297\u8d70\u7ebf\u4ee5\u9632\u6b62\u4fe1\u53f7\u53cd\u5c04\uff0c\u907f\u514d\u65f6\u5e8f\u5931\u771f\u3002<\/li>\n<li><strong>\u53bb\u8026\u7535\u5bb9\uff1a<\/strong> \u5728\u7535\u6e90\u5f15\u811a\u9644\u8fd1\u653e\u7f6e\u7535\u5bb9\uff0c\u4ee5\u786e\u4fdd\u5f00\u5173\u8fc7\u7a0b\u4e2d\u7535\u538b\u7a33\u5b9a\uff0c\u4ece\u800c\u9632\u6b62\u65f6\u5e8f\u6296\u52a8\u3002<\/li>\n<li><strong>\u5c0a\u91cd\u4e0a\u5347\u65f6\u95f4\uff1a<\/strong> 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