{"id":1203,"date":"2021-05-01T19:03:49","date_gmt":"2021-05-01T11:03:49","guid":{"rendered":"http:\/\/mgspace.wiki\/docs\/?post_type=docs&#038;p=1203"},"modified":"2021-06-18T15:13:39","modified_gmt":"2021-06-18T07:13:39","slug":"%e4%ba%ba%e4%bd%93%e7%ba%a2%e5%a4%96%e4%bc%a0%e6%84%9f%e5%99%a8","status":"publish","type":"docs","link":"http:\/\/mgspace.wiki\/docs\/?docs=%e4%ba%ba%e4%bd%93%e7%ba%a2%e5%a4%96%e4%bc%a0%e6%84%9f%e5%99%a8","title":{"rendered":"\u4eba\u4f53\u7ea2\u5916\u4f20\u611f\u5668"},"content":{"rendered":"\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"164\" height=\"325\" src=\"http:\/\/mgspace.wiki\/docs\/wp-content\/uploads\/2021\/06\/6167AAsH3RL.png\" alt=\"\" class=\"wp-image-2194\"\/><\/figure><\/div>\n\n\n\n<p>\u6bcf\u4e2a\u75af\u72c2\u7684\u79d1\u5b66\u5bb6\u5b9e\u9a8c\u5ba4\u6216\u9752\u5c11\u5e74\u7684\u79d8\u5bc6\u5ba4\u90fd\u9700\u8981\u9ad8\u7ea7\u4fdd\u62a4\uff0c\u4ee5\u9632\u6b62\u6d41\u6c13\u7279\u5de5\u6216\u5144\u5f1f\u59d0\u59b9\u5165\u4fb5\u3002\u5982\u679c\u60a8\u662f\u5176\u4e2d\u4e4b\u4e00\uff0c\u5219\u53ef\u80fd\u5e94\u8be5\u8003\u8651\u4e3a\u60a8\u8d2d\u4e70\u88ab\u52a8\u7ea2\u5916\uff08PIR\uff09\u4f20\u611f\u5668\u3002\u901a\u8fc7PIR\u4f20\u611f\u5668\uff0c\u60a8\u53ef\u4ee5\u68c0\u6d4b\u4e0d\u5e94\u8be5\u6709\u4eba\u8fdb\u5165\u623f\u95f4\u7684\u65f6\u95f4\u3002<\/p>\n\n\n\n<p>\u5c3d\u7ba1\u770b\u8d77\u6765\u597d\u50cf\u662f\u95f4\u8c0d\u7535\u5f71\u91cc\u7684\u4e1c\u897f\uff0c\u4f46\u60a8\u53ef\u80fd\u6bcf\u5929\u90fd\u5728\u4f7f\u7528PIR\u4f20\u611f\u5668\u3002\u8be5\u4f20\u611f\u5668\u4e0e\u5927\u591a\u6570\u73b0\u4ee3\u5b89\u5168\u7cfb\u7edf\uff0c\u81ea\u52a8\u7167\u660e\u5f00\u5173\uff0c\u8f66\u5e93\u95e8\u5f00\u542f\u5668\u4ee5\u53ca\u7c7b\u4f3c\u7684\u5e94\u7528\u4e2d\u7684\u4f20\u611f\u5668\u76f8\u540c\uff0c\u5728\u8fd9\u4e9b\u5e94\u7528\u4e2d\uff0c\u53ea\u6709\u5728\u6709\u4eba\u5728\u573a\u7684\u60c5\u51b5\u4e0b\u624d\u9700\u8981\u64cd\u4f5c\u67d0\u4e9b\u7535\u6c14\u8bbe\u5907\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"how-pir-motion-sensor-works\">PIR\u8fd0\u52a8\u4f20\u611f\u5668\u5982\u4f55\u5de5\u4f5c\uff1f<\/h2>\n\n\n\n<p>\u5982\u679c\u60a8\u4e0d\u77e5\u9053\uff0c\u6240\u6709\u6e29\u5ea6\u9ad8\u4e8e\u7edd\u5bf9\u96f6\u6e29\u5ea6\uff080\u5f00\u5c14\u6587\/ -273.15\u00b0C\uff09\u7684\u7269\u4f53\u90fd\u4f1a\u4ee5\u7ea2\u5916\u7ebf\u8f90\u5c04\u7684\u5f62\u5f0f\u91ca\u653e\u70ed\u80fd\uff0c\u5305\u62ec\u4eba\u4f53\u3002\u4e00\u4e2a\u7269\u4f53\u8d8a\u70ed\uff0c\u5b83\u53d1\u51fa\u7684\u8f90\u5c04\u5c31\u8d8a\u591a\u3002<\/p>\n\n\n\n<p>PIR\u4f20\u611f\u5668\u7ecf\u8fc7\u4e13\u95e8\u8bbe\u8ba1\uff0c\u53ef\u68c0\u6d4b\u8fd9\u79cd\u6c34\u5e73\u7684\u7ea2\u5916\u8f90\u5c04\u3002\u5b83\u57fa\u672c\u4e0a\u7531\u4e24\u4e2a\u4e3b\u8981\u90e8\u5206\u7ec4\u6210\uff1a<strong>\u4e00\u4e2a\u70ed\u91ca\u7535\u4f20\u611f\u5668<\/strong>\u548c\u4e00\u4e2a\u79f0\u4e3a<strong>\u83f2\u6d85\u8033\u900f\u955c\u7684<\/strong>\u7279\u6b8a<strong>\u900f\u955c<\/strong>\uff0c\u8be5<strong>\u900f\u955c<\/strong>\u5c06\u7ea2\u5916\u4fe1\u53f7\u805a\u7126\u5230\u70ed\u91ca\u7535\u4f20\u611f\u5668\u4e0a\u3002<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/lastminuteengineers.com\/wp-content\/uploads\/arduino\/PIR-Sensor-Working-Pyroelectric-Sensor-Two-Detection-Slots.png\" alt=\"PIR\u4f20\u611f\u5668\u5de5\u4f5c\u70ed\u91ca\u7535\u4f20\u611f\u5668\u4e24\u4e2a\u68c0\u6d4b\u69fd\"\/><\/figure><\/div>\n\n\n\n<p>\u70ed\u91ca\u7535\u4f20\u611f\u5668\u5b9e\u9645\u4e0a\u5177\u6709\u4e24\u4e2a\u77e9\u5f62\u72ed\u69fd\uff0c\u8be5\u72ed\u69fd\u7531\u5141\u8bb8\u7ea2\u5916\u8f90\u5c04\u901a\u8fc7\u7684\u6750\u6599\u5236\u6210\u3002\u5728\u5b83\u4eec\u7684\u540e\u9762\u662f\u4e24\u4e2a\u5355\u72ec\u7684\u7ea2\u5916\u4f20\u611f\u5668\u7535\u6781\uff0c\u4e00\u4e2a\u8d1f\u8d23\u4ea7\u751f\u6b63\u8f93\u51fa\uff0c\u53e6\u4e00\u4e2a\u8d1f\u8d23\u8d1f\u8f93\u51fa\u3002\u8fd9\u6837\u505a\u7684\u539f\u56e0\u662f\u6211\u4eec\u6b63\u5728\u5bfb\u627eIR\u7ea7\u522b\u7684\u53d8\u5316\uff0c\u800c\u4e0d\u662f\u73af\u5883IR\u7ea7\u522b\u7684\u53d8\u5316\u3002\u4e24\u4e2a\u7535\u6781\u8fde\u63a5\u5728\u4e00\u8d77\uff0c\u4ee5\u4fbf\u5f7c\u6b64\u62b5\u6d88\u3002\u5982\u679c\u4e00\u534a\u7684\u7ea2\u5916\u8f90\u5c04\u6bd4\u53e6\u4e00\u534a\u591a\u6216\u5c11\uff0c\u5219\u8f93\u51fa\u5c06\u6446\u9ad8\u6216\u6446\u4f4e\u3002<\/p>\n\n\n\n<p><strong>\u5f53\u4f20\u611f\u5668\u5904\u4e8e\u7a7a\u95f2\u72b6\u6001\u65f6<\/strong>\uff0c\u5373\u4f20\u611f\u5668\u5468\u56f4\u6ca1\u6709\u8fd0\u52a8\uff1b\u4e24\u4e2a\u63d2\u69fd\u68c0\u6d4b\u5230\u7684\u7ea2\u5916\u8f90\u5c04\u91cf\u76f8\u540c\uff0c\u4ece\u800c\u5bfc\u81f4\u8f93\u51fa\u4fe1\u53f7\u4e3a\u96f6\u3002<\/p>\n\n\n\n<p><strong>\u4f46\u662f\u5f53\u50cf\u4eba\u6216\u52a8\u7269\u4e00\u6837\u6e29\u6696\u7684\u8eab\u4f53\u7ecf\u8fc7\u65f6<\/strong>;&nbsp;\u5b83\u9996\u5148\u622a\u53d6\u4e86PIR\u4f20\u611f\u5668\u7684\u4e00\u534a\uff0c\u8fd9\u5bfc\u81f4\u4e86\u4e24\u534a\u4e4b\u95f4\u7684\u6b63\u5dee\u5206\u53d8\u5316\u3002\u5f53\u6e29\u6696\u7684\u8eab\u4f53\u79bb\u5f00\u611f\u5e94\u533a\u57df\u65f6\uff0c\u60c5\u51b5\u4f1a\u53d1\u751f\u76f8\u53cd\u7684\u53d8\u5316\uff0c\u4ece\u800c\u4f7f\u4f20\u611f\u5668\u4ea7\u751f\u8d1f\u7684\u5dee\u5206\u53d8\u5316\u3002\u76f8\u5e94\u7684\u4fe1\u53f7\u8109\u51b2\u5bfc\u81f4\u4f20\u611f\u5668\u5c06\u5176\u8f93\u51fa\u5f15\u811a\u8bbe\u7f6e\u4e3a\u9ad8\u7535\u5e73\u3002<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/lastminuteengineers.com\/wp-content\/uploads\/arduino\/PIR-Sensor-Working-Animation-Differential-Output.gif\" alt=\"PIR\u4f20\u611f\u5668\u5de5\u4f5c\u52a8\u753b\u5dee\u5206\u8f93\u51fa\"\/><\/figure><\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"hcsr501-pir-motion-detector\">HC-SR501\u88ab\u52a8\u7ea2\u5916\u63a2\u6d4b\u5668<\/h2>\n\n\n\n<p>\u5bf9\u4e8e\u6211\u4eec\u5927\u591a\u6570\u9700\u8981\u68c0\u6d4b\u4eba\u5458\u4f55\u65f6\u79bb\u5f00\u6216\u8fdb\u5165\u8be5\u533a\u57df\u6216\u63a5\u8fd1\u8be5\u533a\u57df\u7684Arduino\u9879\u76ee\uff0cHC-SR501 PIR\u4f20\u611f\u5668\u662f\u4e00\u4e2a\u4e0d\u9519\u7684\u9009\u62e9\u3002\u5b83\u4eec\u529f\u8017\u4f4e\uff0c\u6210\u672c\u4f4e\uff0c\u575a\u56fa\u8010\u7528\uff0c\u5177\u6709\u5bbd\u5e7f\u7684\u955c\u5934\u8303\u56f4\uff0c\u6613\u4e8e\u8fde\u63a5\u5e76\u4e14\u5728\u4e1a\u4f59\u7231\u597d\u8005\u4e2d\u75af\u72c2\u5730\u6d41\u884c\u3002<\/p>\n\n\n\n<p>HC-SR501 PIR\u4f20\u611f\u5668\u5177\u6709\u4e09\u4e2a\u8f93\u51fa\u5f15\u811aVCC\uff0c\u8f93\u51fa\u548c\u63a5\u5730\uff0c\u5982\u4e0b\u56fe\u6240\u793a\u3002\u5b83\u5177\u6709\u5185\u7f6e\u7684\u7a33\u538b\u5668\uff0c\u56e0\u6b64\u53ef\u4ee5\u901a\u8fc74.5\u81f312\u4f0f\u7684\u4efb\u4f55DC\u7535\u538b\uff08\u901a\u5e38\u4f7f\u75285V\uff09\u4f9b\u7535\u3002\u9664\u6b64\u4e4b\u5916\uff0cPIR\u8fd8\u6709\u4e24\u4e2a\u9009\u9879\u3002\u8ba9\u6211\u4eec\u68c0\u67e5\u4e00\u4e0b\u3002<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/lastminuteengineers.com\/wp-content\/uploads\/arduino\/PIR-Sensor-Pinout-with-Jumper-Setting-Sensitivity-Time-Adjustment-BISS0001-IC-Labeling-Diagram.png\" alt=\"\u5177\u6709\u8df3\u7ebf\u8bbe\u7f6e\u7075\u654f\u5ea6\u65f6\u95f4\u8c03\u6574\u529f\u80fd\u7684PIR\u4f20\u611f\u5668\u5f15\u811a\u6392\u5217BISS0001 IC\u6807\u7b7e\u56fe\"\/><\/figure><\/div>\n\n\n\n<p>\u677f\u4e0a\u6709\u4e24\u4e2a\u7535\u4f4d\u5668\uff0c\u53ef\u8c03\u8282\u4e24\u4e2a\u53c2\u6570\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>\u7075\u654f\u5ea6<\/strong>\u2013\u8bbe\u7f6e\u53ef\u4ee5\u68c0\u6d4b\u5230\u8fd0\u52a8\u7684\u6700\u5927\u8ddd\u79bb\u3002\u8303\u56f4\u4ece3\u7c73\u5230\u5927\u7ea67\u7c73\u3002\u623f\u95f4\u7684\u62d3\u6251\u7ed3\u6784\u53ef\u80fd\u4f1a\u5f71\u54cd\u60a8\u8fbe\u5230\u7684\u5b9e\u9645\u8303\u56f4\u3002<\/li><li><strong>\u65f6\u95f4<\/strong>\u2013\u8bbe\u7f6e\u68c0\u6d4b\u540e\u8f93\u51fa\u5c06\u4fdd\u6301\u9ad8\u7535\u5e73\u7684\u65f6\u95f4\u3002\u6700\u5c113\u79d2\uff0c\u6700\u591a300\u79d2\u62165\u5206\u949f\u3002<\/li><\/ul>\n\n\n\n<p>\u6700\u540e\uff0c\u677f\u4e0a\u6709\u4e00\u4e2a\u8df3\u7ebf\uff08\u67d0\u4e9b\u578b\u53f7\u7684\u8df3\u7ebf\u672a\u710a\u63a5\uff09\u3002\u5b83\u6709\u4e24\u4e2a\u8bbe\u7f6e\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>H<\/strong>&nbsp;\u2013\u8fd9\u662f\u4fdd\u6301\/\u91cd\u590d\/\u89e6\u53d1\u5728\u6b64\u4f4d\u7f6e\uff0c\u53ea\u8981HC-SR501\u7ee7\u7eed\u68c0\u6d4b\u5230\u8fd0\u52a8\uff0c\u5b83\u5c06\u7ee7\u7eed\u8f93\u51faHIGH\u4fe1\u53f7\u3002<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/lastminuteengineers.com\/wp-content\/uploads\/arduino\/PIR-Sensor-Retriggering-Repeat-Mode-Jumper-Setting.png\" width=\"671\" height=\"270\" alt=\"PIR\u4f20\u611f\u5668\u89e6\u53d1\u91cd\u590d\u6a21\u5f0f\u8df3\u7ebf\u8bbe\u7f6e\"><\/li><li><strong>L<\/strong>&nbsp;\u2013\u8fd9\u662f\u95f4\u6b47\u6027\u7684\u6216\u4e0d\u91cd\u590d\/\u4e0d\u89e6\u53d1\u7684\u3002\u5728\u6b64\u4f4d\u7f6e\uff0c\u8f93\u51fa\u5c06\u5728\u7531TIME\u7535\u4f4d\u5668\u8c03\u6574\u8bbe\u7f6e\u7684\u65f6\u95f4\u6bb5\u5185\u4fdd\u6301\u9ad8\u7535\u5e73\u3002<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/lastminuteengineers.com\/wp-content\/uploads\/arduino\/PIR-Sensor-Non-Retriggering-No-Repeat-Mode-Jumper-Setting.png\" width=\"671\" height=\"275\" alt=\"PIR\u4f20\u611f\u5668\u4e0d\u89e6\u53d1\u4e0d\u91cd\u590d\u6a21\u5f0f\u8df3\u7ebf\u8bbe\u7f6e\"><\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"making-hcsr501-pir-sensor-more-versatile\">\u4f7fHC-SR501 PIR\u4f20\u611f\u5668\u66f4\u5177\u901a\u7528\u6027<\/h2>\n\n\n\n<p>HC-SR501\u7535\u8def\u677f\u5177\u6709\u7528\u4e8e\u4e24\u4e2a\u5176\u4ed6\u7ec4\u4ef6\u7684\u710a\u76d8\u3002\u8fd9\u4e9b\u901a\u5e38\u88ab\u6807\u8bb0\u4e3a\u201c RT\u201d\u548c\u201c RL\u201d\u3002\u8bf7\u6ce8\u610f\uff0c\u5728\u67d0\u4e9b\u677f\u4e0a\uff0c\u6807\u7b7e\u53ef\u80fd\u88ab\u4e0e\u7ec4\u4ef6\u76f8\u5bf9\u7684\u4e00\u4fa7\u7684\u201c\u5706\u9876\u201d\u900f\u955c\u8986\u76d6\u3002<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/lastminuteengineers.com\/wp-content\/uploads\/arduino\/PIR-Sensor-LDR-and-Thermistor-Setting-to-Improve-Accuracy.png\" alt=\"PIR\u4f20\u611f\u5668LDR\u548c\u70ed\u654f\u7535\u963b\u8bbe\u7f6e\u53ef\u63d0\u9ad8\u7cbe\u5ea6\"\/><\/figure><\/div>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>RT<\/strong>&nbsp;\u2013\u7528\u4e8e\u70ed\u654f\u7535\u963b\u6216\u6e29\u5ea6\u654f\u611f\u7535\u963b\u3002\u9664\u6b64\u4e4b\u5916\uff0cHC-SR501\u53ef\u4ee5\u5728\u6781\u7aef\u6e29\u5ea6\u4e0b\u4f7f\u7528\uff0c\u4e5f\u53ef\u4ee5\u5728\u67d0\u79cd\u7a0b\u5ea6\u4e0a\u63d0\u9ad8\u68c0\u6d4b\u5668\u7684\u7cbe\u5ea6\u3002<\/li><li><strong>RL<\/strong>&nbsp;\u2013\u6b64\u8fde\u63a5\u7528\u4e8e\u5149\u654f\u7535\u963b\uff08LDR\uff09\u6216\u5149\u654f\u7535\u963b\u3002\u901a\u8fc7\u6dfb\u52a0\u8be5\u7ec4\u4ef6\uff0cHC-SR501\u5c06\u4ec5\u5728\u9ed1\u6697\u4e2d\u8fd0\u884c\uff0c\u8fd9\u662f\u8fd0\u52a8\u654f\u611f\u7167\u660e\u7cfb\u7edf\u7684\u5e38\u89c1\u5e94\u7528\u3002<\/li><\/ul>\n\n\n\n<p>\u53ef\u4ee5\u5c06\u5176\u4ed6\u7ec4\u4ef6\u76f4\u63a5\u710a\u63a5\u5230\u677f\u4e0a\uff0c\u4e5f\u53ef\u4ee5\u4f7f\u7528\u7535\u7ebf\u548c\u8fde\u63a5\u5668\u5c06\u5176\u6269\u5c55\u5230\u8fdc\u7a0b\u4f4d\u7f6e\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"hcsr501-pir-sensor-pinout\">HC-SR501 PIR\u4f20\u611f\u5668\u5f15\u811a<\/h2>\n\n\n\n<p>HC-SR501\u5177\u6709\u4e00\u4e2a3\u9488\u8fde\u63a5\u5668\uff0c\u53ef\u5c06\u5176\u4e0e\u5916\u754c\u8fde\u63a5\u3002\u8fde\u63a5\u5982\u4e0b\uff1a<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/lastminuteengineers.com\/wp-content\/uploads\/arduino\/Passive-Infrared-PIR-Sensor-Pinout-Diagram.png\" alt=\"\u65e0\u6e90\u7ea2\u5916PIR\u4f20\u611f\u5668\u7684\u5f15\u811a\u6392\u5217\u56fe\"\/><\/figure><\/div>\n\n\n\n<p>VCC&nbsp;\u662fHC-SR501 PIR\u4f20\u611f\u5668\u7684\u7535\u6e90\uff0c\u6211\u4eec\u8fde\u63a5\u4e86Arduino\u4e0a\u76845V\u5f15\u811a\u3002<\/p>\n\n\n\n<p>\u8f93\u51fa\u5f15\u811a\u4e3a3.3V TTL\u903b\u8f91\u8f93\u51fa\u3002LOW\u8868\u793a\u672a\u68c0\u6d4b\u5230\u8fd0\u52a8\uff0cHIGH\u8868\u793a\u5df2\u68c0\u6d4b\u5230\u67d0\u4e9b\u8fd0\u52a8\u3002<\/p>\n\n\n\n<p>\u5730\u7ebf&nbsp;\u5e94\u8be5\u8fde\u63a5\u5230Arduino\u7684\u5730\u9762\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"using-pir-sensor-as-a-standalone-unit\">\u4f7f\u7528PIR\u4f20\u611f\u5668\u4f5c\u4e3a\u72ec\u7acb\u5355\u5143<\/h2>\n\n\n\n<p>HC-SR501 PIR\u4f20\u611f\u5668\u4e4b\u6240\u4ee5\u5e7f\u53d7\u6b22\u8fce\u7684\u539f\u56e0\u4e4b\u4e00\u662f\uff0cHC-SR501\u662f\u4e00\u79cd\u7528\u9014\u975e\u5e38\u5e7f\u6cdb\u7684\u4f20\u611f\u5668\uff0c\u5176\u529f\u80fd\u5341\u5206\u5f3a\u5927\u3002\u901a\u8fc7\u5c06\u5176\u8fde\u63a5\u5230Arduino\u7b49\u67d0\u4e9b\u5fae\u63a7\u5236\u5668\uff0c\u60a8\u53ef\u4ee5\u8fdb\u4e00\u6b65\u6269\u5c55\u5176\u591a\u529f\u80fd\u6027\u3002\u5bf9\u4e8e\u6211\u4eec\u7684\u7b2c\u4e00\u4e2a\u5b9e\u9a8c\uff0c\u6211\u4eec\u5c06\u5355\u72ec\u4f7f\u7528HC-SR501\u6765\u8bf4\u660e\u5b83\u672c\u8eab\u662f\u591a\u4e48\u6709\u7528\u3002<\/p>\n\n\n\n<p>\u6b64\u5b9e\u9a8c\u7684\u63a5\u7ebf\u975e\u5e38\u7b80\u5355\u3002\u7535\u6c60\u8fde\u63a5\u5728\u4f20\u611f\u5668\u7684VCC\u548cGND\u4e4b\u95f4\uff0c\u4e00\u4e2a\u5c0f\u7684\u7ea2\u8272LED\u901a\u8fc7220\u03a9\u9650\u6d41\u7535\u963b\u8fde\u63a5\u5230\u8f93\u51fa\u5f15\u811a\u3002\u5c31\u662f\u8fd9\u6837\uff01<\/p>\n\n\n\n<p>\u73b0\u5728\uff0c\u5f53PIR\u68c0\u6d4b\u5230\u8fd0\u52a8\u65f6\uff0c\u8f93\u51fa\u5f15\u811a\u5c06\u53d8\u4e3a\u201c\u9ad8\u7535\u5e73\u201d\u5e76\u70b9\u4eaeLED\uff01<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/lastminuteengineers.com\/wp-content\/uploads\/arduino\/Testing-PIR-Sensor-Wiring-Fritzing-Connections-without-Arduino.png\" alt=\"\u5728\u6ca1\u6709Arduino\u7684\u60c5\u51b5\u4e0b\u6d4b\u8bd5PIR\u4f20\u611f\u5668\u63a5\u7ebf\u7684\u538b\u63a5\u8fde\u63a5\"\/><figcaption>\u8fd9\u8bf4\u660e\u4e86\u5982\u4f55\u5728\u72ec\u7acb\u5e94\u7528\u4e2d\u4f7f\u7528PIR\u4f20\u611f\u5668\u3002<\/figcaption><\/figure><\/div>\n\n\n\n<p>\u8bf7\u8bb0\u4f4f\uff0c\u4e00\u65e6\u4e3a\u7535\u8def\u52a0\u7535\uff0c\u5219\u9700\u8981\u7b49\u5f8530-60\u79d2\uff0c\u4ee5\u4f7fPIR\u9002\u5e94\u5ba4\u5185\u7684\u7ea2\u5916\u80fd\u91cf\u3002\u5728\u6b64\u671f\u95f4\uff0cLED\u53ef\u80fd\u4f1a\u95ea\u70c1\u4e00\u70b9\u3002\u7b49\u5230\u6307\u793a\u706f\u7184\u706d\u540e\uff0c\u518d\u6325\u52a8\u624b\u7b49\u5728\u6307\u793a\u706f\u7684\u524d\u9762\u56db\u5904\u8d70\u52a8\uff0c\u4ee5\u67e5\u770b\u6307\u793a\u706f\u662f\u5426\u4eae\u8d77\uff01<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"wiring-connecting-pir-sensor-to-arduino-uno\">\u63a5\u7ebf\u2013\u5c06PIR\u4f20\u611f\u5668\u8fde\u63a5\u5230Arduino UNO<\/h2>\n\n\n\n<p>\u73b0\u5728\u6211\u4eec\u5df2\u7ecf\u5b8c\u5168\u4e86\u89e3\u4e86PIR\u4f20\u611f\u5668\u7684\u5de5\u4f5c\u539f\u7406\uff0c\u6211\u4eec\u53ef\u4ee5\u5f00\u59cb\u5c06\u5176\u8fde\u63a5\u5230Arduino\u4e86\uff01<\/p>\n\n\n\n<p>\u5c06PIR\u4f20\u611f\u5668\u8fde\u63a5\u5230\u5fae\u63a7\u5236\u5668\u786e\u5b9e\u975e\u5e38\u7b80\u5355\u3002PIR\u7528\u4f5c\u6570\u5b57\u8f93\u51fa\uff0c\u56e0\u6b64\u60a8\u6240\u9700\u8981\u505a\u7684\u5c31\u662f\u76d1\u542c\u8f93\u51fa\u5f15\u811a\u5c06\u5176\u7ffb\u8f6c\u4e3aHIGH\uff08\u68c0\u6d4b\u5230\u8fd0\u52a8\uff09\u6216LOW\uff08\u672a\u68c0\u6d4b\u5230\uff09\u3002\u75285V\u4e3aPIR\u4f9b\u7535\uff0c\u5e76\u5c06\u5730\u7ebf\u63a5\u5730\u3002\u7136\u540e\u5c06\u8f93\u51fa\u8fde\u63a5\u5230\u6570\u5b57\u5f15\u811a2\u3002<\/p>\n\n\n\n<p>\u60a8\u9700\u8981\u5c06HC-SR501\u4e0a\u7684\u8df3\u7ebf\u8bbe\u7f6e\u4e3a<strong>H<\/strong>\uff08\u91cd\u65b0\u89e6\u53d1\uff09\u4f4d\u7f6e\uff0c\u4ee5\u4f7f\u5176\u6b63\u5e38\u5de5\u4f5c\u3002\u60a8\u8fd8\u9700\u8981\u5c06TIME\u8bbe\u7f6e\u4e3a\u6700\u5c113\u79d2\u949f\uff0c\u7136\u540e\u5c06TIME\u7535\u4f4d\u8ba1\u9006\u65f6\u9488\u65cb\u8f6c\u5230\u5e95\u3002\u5c06\u7075\u654f\u5ea6\u8bbe\u7f6e\u4e3a\u4efb\u610f\u4f4d\u7f6e\uff0c\u5982\u679c\u4e0d\u786e\u5b9a\uff0c\u5c06\u5176\u8bbe\u7f6e\u4e3a\u4e2d\u70b9\u3002<\/p>\n\n\n\n<p>\u8fd9\u6837\uff0c\u60a8\u73b0\u5728\u5c31\u53ef\u4ee5\u4e0a\u4f20\u4e00\u4e9b\u4ee3\u7801\u5e76\u4f7fPIR\u6b63\u5e38\u5de5\u4f5c\u4e86\u3002<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/lastminuteengineers.com\/wp-content\/uploads\/arduino\/Arduino-Wiring-Fritzing-Connections-with-PIR-Sensor.png\" alt=\"Arduino\u7528PIR\u4f20\u611f\u5668\u6a21\u5757\u63a5\u7ebfFritzing\u8fde\u63a5\"\/><figcaption>\u5c06PIR\u4f20\u611f\u5668\u8fde\u63a5\u5230Arduino UNO<\/figcaption><\/figure><\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"arduino-code\">Arduino\u4ee3\u7801<\/h2>\n\n\n\n<p>\u4ee3\u7801\u975e\u5e38\u7b80\u5355\uff0c\u57fa\u672c\u4e0a\u53ea\u662f\u8ddf\u8e2a\u5f15\u811a2\u7684\u8f93\u5165\u662fHIGH\u8fd8\u662fLOW\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">int ledPin = 13;                \/\/ choose the pin for the LED\nint inputPin = 8;               \/\/ choose the input pin (for PIR sensor)\nint pirState = LOW;             \/\/ we start, assuming no motion detected\nint val = 0;                    \/\/ variable for reading the pin status\n \nvoid setup() {\n  pinMode(ledPin, OUTPUT);      \/\/ declare LED as output\n  pinMode(inputPin, INPUT);     \/\/ declare sensor as input\n \n  Serial.begin(9600);\n}\n \nvoid loop(){\n  val = digitalRead(inputPin);  \/\/ read input value\n  \n  if (val == HIGH)\t\/\/ check if the input is HIGH\n  {            \n    digitalWrite(ledPin, HIGH);  \/\/ turn LED ON\n\t\n    if (pirState == LOW) \n\t{\n      Serial.println(\"Motion detected!\");\t\/\/ print on output change\n      pirState = HIGH;\n    }\n  } \n  else \n  {\n    digitalWrite(ledPin, LOW); \/\/ turn LED OFF\n\t\n    if (pirState == HIGH)\n\t{\n      Serial.println(\"Motion ended!\");\t\/\/ print on output change\n      pirState = LOW;\n    }\n  }\n}<\/pre>\n\n\n\n<p>\u6700\u540e\uff0c\u5f53\u68c0\u6d4b\u5230\u8fd0\u52a8\u65f6\uff0c\u6211\u4eec\u5c06\u5728\u4e32\u884c\u76d1\u89c6\u5668\u4e0a\u6253\u5370\u4e00\u6761\u6d88\u606f\u3002<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/lastminuteengineers.com\/wp-content\/uploads\/arduino\/Passive-Infrared-PIR-Sensor-Arduino-Sketch-Output-Serial-Monitor.png\" alt=\"\u65e0\u6e90\u7ea2\u5916PIR\u4f20\u611f\u5668Arduino\u8349\u56fe\u8f93\u51fa\u4e32\u884c\u76d1\u89c6\u5668\"\/><figcaption>\u4e32\u884c\u76d1\u89c6\u5668\u4e0a\u7684PIR\u4f20\u611f\u5668\u8f93\u51fa<\/figcaption><\/figure><\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"before-designing-pir-based-applications\">\u5728\u8bbe\u8ba1\u57fa\u4e8ePIR\u7684\u5e94\u7528\u7a0b\u5e8f\u4e4b\u524d\u8981\u8003\u8651\u7684\u4e8b\u9879<\/h2>\n\n\n\n<p>\u4e0e\u5927\u591a\u6570PIR\u4f20\u611f\u5668\u4e00\u6837\uff0cHC-SR501\u9700\u8981\u4e00\u4e9b\u65f6\u95f4\u6765\u9002\u5e94\u5ba4\u5185\u7684\u7ea2\u5916\u80fd\u91cf\u3002\u9996\u6b21\u542f\u52a8\u4f20\u611f\u5668\u65f6\uff0c\u6b64\u8fc7\u7a0b\u9700\u898130\u523060\u79d2\u3002<\/p>\n\n\n\n<p>\u53e6\u5916\uff0c\u4f20\u611f\u5668\u5728\u8bfb\u53d6\u540e\u5927\u7ea6\u67095\u62166\u79d2\u7684\u201c\u91cd\u7f6e\u201d\u65f6\u95f4\u3002\u5728\u6b64\u671f\u95f4\uff0c\u5b83\u5c06\u4e0d\u4f1a\u68c0\u6d4b\u5230\u4efb\u4f55\u8fd0\u52a8\u3002<\/p>\n\n\n\n<p>\u5728\u57fa\u4e8eHC-SR501\u8bbe\u8ba1\u7cfb\u7edf\u65f6\uff0c\u60a8\u9700\u8981\u8003\u8651\u8fd9\u4e9b\u5ef6\u8fdf\u65f6\u95f4\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6bcf\u4e2a\u75af\u72c2\u7684\u79d1\u5b66\u5bb6\u5b9e\u9a8c\u5ba4\u6216\u9752\u5c11\u5e74\u7684\u79d8\u5bc6\u5ba4\u90fd\u9700\u8981\u9ad8\u7ea7\u4fdd\u62a4\uff0c\u4ee5\u9632\u6b62\u6d41\u6c13\u7279\u5de5\u6216\u5144\u5f1f\u59d0\u59b9\u5165\u4fb5\u3002\u5982\u679c\u60a8\u662f\u5176\u4e2d\u4e4b\u4e00\uff0c\u5219\u53ef\u80fd\u5e94 &hellip; <a href=\"http:\/\/mgspace.wiki\/docs\/?docs=%e4%ba%ba%e4%bd%93%e7%ba%a2%e5%a4%96%e4%bc%a0%e6%84%9f%e5%99%a8\" class=\"more-link\">\u7ee7\u7eed\u9605\u8bfb<span class=\"screen-reader-text\">\u201c\u4eba\u4f53\u7ea2\u5916\u4f20\u611f\u5668\u201d<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"comment_status":"open","ping_status":"closed","template":"","meta":{"footnotes":""},"doc_category":[34],"doc_tag":[],"class_list":["post-1203","docs","type-docs","status-publish","hentry","doc_category-coding"],"_links":{"self":[{"href":"http:\/\/mgspace.wiki\/docs\/index.php?rest_route=\/wp\/v2\/docs\/1203","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/mgspace.wiki\/docs\/index.php?rest_route=\/wp\/v2\/docs"}],"about":[{"href":"http:\/\/mgspace.wiki\/docs\/index.php?rest_route=\/wp\/v2\/types\/docs"}],"author":[{"embeddable":true,"href":"http:\/\/mgspace.wiki\/docs\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/mgspace.wiki\/docs\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1203"}],"version-history":[{"count":3,"href":"http:\/\/mgspace.wiki\/docs\/index.php?rest_route=\/wp\/v2\/docs\/1203\/revisions"}],"predecessor-version":[{"id":2196,"href":"http:\/\/mgspace.wiki\/docs\/index.php?rest_route=\/wp\/v2\/docs\/1203\/revisions\/2196"}],"wp:attachment":[{"href":"http:\/\/mgspace.wiki\/docs\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1203"}],"wp:term":[{"taxonomy":"doc_category","embeddable":true,"href":"http:\/\/mgspace.wiki\/docs\/index.php?rest_route=%2Fwp%2Fv2%2Fdoc_category&post=1203"},{"taxonomy":"doc_tag","embeddable":true,"href":"http:\/\/mgspace.wiki\/docs\/index.php?rest_route=%2Fwp%2Fv2%2Fdoc_tag&post=1203"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}