{"id":2840,"date":"2023-08-06T17:32:20","date_gmt":"2023-08-06T09:32:20","guid":{"rendered":"https:\/\/104.es\/?p=2840"},"modified":"2023-08-06T17:32:55","modified_gmt":"2023-08-06T09:32:55","slug":"nodemcu-common-sensors","status":"publish","type":"post","link":"https:\/\/104.es\/index.php\/2023\/08\/06\/nodemcu-common-sensors\/","title":{"rendered":"\u3010NodeMCU\u3011\u5e38\u7528\u611f\u6e2c\u5668\u7684\u9023\u63a5\u8207\u4f7f\u7528"},"content":{"rendered":"\n<p>\u4f7f\u7528\u5d4c\u5165\u5f0f\u7cfb\u7d71\u5176\u4e2d\u4e00\u500b\u6700\u4e3b\u8981\u7684\u76ee\u7684\u5c31\u662f\u5e0c\u671b\u80fd\u5920\u6536\u96c6\u74b0\u5883\u4e2d\u7684\u8cc7\u8a0a\uff0c\u800c\u9019\u4e9b\u8cc7\u8a0a\u5c31\u9700\u8981\u900f\u904e\u611f\u6e2c\u5668\u4f86\u52a0\u4ee5\u5be6\u73fe\u3002\u5728\u9019\u500b\u55ae\u5143\u4e2d\uff0c\u6211\u5011\u5c07\u9010\u4e00\u4ecb\u7d39\u4e00\u4e9b\u65b9\u4fbf\u597d\u7528\u7684\u611f\u6e2c\u5668\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"wen-shi-du-gan-ce-qi\">\u6eab\u6fd5\u5ea6\u611f\u6e2c\u5668<a href=\"#wen-shi-du-gan-ce-qi\"><\/a><\/h2>\n\n\n\n<p>\u6700\u5e38\u7528\u7684\u611f\u6e2c\u5668\u975e\u6eab\u6fd5\u5ea6\u611f\u6e2c\u5668\u83ab\u5c6c\u4e86\uff0c\u5728NodeMCU\u7684MicroPython\u5df2\u7d93\u6709\u53ef\u4ee5\u76f4\u63a5\u4f7f\u7528\u7684\u6a21\u7d44\uff0c\u5728\u7a0b\u5f0f\u4e2d\u53ef\u4ee5\u76f4\u63a5\u4f7f\u7528import\u5f15\u5165\u4f7f\u7528\u3002\u5e38\u898b\u7684\u6eab\u6fd5\u5ea6\u611f\u6e2c\u5668\u6709\u4ee5\u4e0b\u9019\u5169\u7a2e\uff1a<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/104.es\/wp-content\/uploads\/2023\/08\/image-26.png\" alt=\"\" class=\"wp-image-2842\" width=\"316\" height=\"266\" srcset=\"https:\/\/104.es\/wp-content\/uploads\/2023\/08\/image-26.png 600w, https:\/\/104.es\/wp-content\/uploads\/2023\/08\/image-26-300x253.png 300w\" sizes=\"auto, (max-width: 316px) 100vw, 316px\" \/><\/figure>\n<\/div>\n\n\n<p>\u5b83\u5011\u5206\u5225\u662fDHT11\u548cDHT22\uff0c\u8a73\u7d30\u7684\u898f\u683c\u5982\u4e0b\u9762\u9019\u500b\u7db2\u5740\u4e0a\u7684\u8aaa\u660e\uff1a<\/p>\n\n\n\n<p><a href=\"https:\/\/learn.adafruit.com\/dht\/overview\">https:\/\/learn.adafruit.com\/dht\/overview<\/a><\/p>\n\n\n\n<p>\u5143\u4ef6\u672c\u8eab\u90fd\u662f4\u652f\u63a5\u8173\uff0c\u4f46\u662f\u505a\u6210\u6a21\u7d44\u4e4b\u5f8c\uff0c\u53ea\u4fdd\u75593\u652f\u8173\uff0c\u5be6\u969b\u4f7f\u7528\u4e0a\u4e5f\u53ea\u8981\u90193\u652f\u8173\u5c31\u53ef\u4ee5\u4e86\u3002\u5728\u9019\u500b\u55ae\u5143\u7df4\u7fd2\u4e2d\u4f7f\u7528\u7684\u662f3\u652f\u8173\u7684DHT11\u6a21\u7d44\u3002\u4ed4\u7d30\u89c0\u5bdf\u6a21\u7d44\u7684\u5916\u89c0\u53ef\u4ee5\u770b\u5230\u677f\u5b50\u4e0a\u7684\u6a19\u793a\uff0c\u5176\u4e2d\u53f3\u908a\u662f\u300c-\u300d\uff0c\u4e5f\u5c31\u662f\u8981\u9023\u63a5\u5230\u8ca0\u6975\uff08GND\uff09\uff0c\u4e2d\u9593\u6c92\u6709\u6a19\u7684\u5730\u65b9\u662f\u300c+\u300d\uff0c\u8981\u9023\u63a5\u5230\u6b63\u6975\uff08\u4e5f\u5c31\u662f\u96fb\u6e90\u8655\uff09\uff0c\u5de6\u5074\u7684\u300cS\u300d\u63a5\u8173\uff0c\u5c31\u662f\u8981\u9023\u63a5\u8a0a\u865f\u4fe1\u7684\u5730\u65b9\uff0c\u4e5f\u5c31\u662fNodeMCU\u7684\u8f38\u5165\u57e0\u3002<\/p>\n\n\n\n<p>\u548cNodeMCU\u9023\u63a5\u7684\u65b9\u5f0f\u975e\u5e38\u7c21\u55ae\uff0c\u53ea\u8981\u628a\u6b63\u8ca0\u63a5\u8173\u9023\u63a5\u5230\u64f4\u5145\u677f\u76843V\u548cGND\u8f38\u51fa\uff0c\u7136\u5f8c\u628a\u300cS\u300d\u8a0a\u865f\u63a5\u8173\u9023\u63a5\u5230NodeMCU\u7684D2\u63a5\u8173\u5c31\u53ef\u4ee5\u4e86\u3002\u5982\u4e0b\u5716\u6240\u793a\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"450\" src=\"https:\/\/104.es\/wp-content\/uploads\/2023\/08\/image-27.png\" alt=\"\" class=\"wp-image-2843\" srcset=\"https:\/\/104.es\/wp-content\/uploads\/2023\/08\/image-27.png 800w, https:\/\/104.es\/wp-content\/uploads\/2023\/08\/image-27-300x169.png 300w, https:\/\/104.es\/wp-content\/uploads\/2023\/08\/image-27-768x432.png 768w, https:\/\/104.es\/wp-content\/uploads\/2023\/08\/image-27-600x338.png 600w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p>\u8fd1\u4e00\u9ede\u770b\u7684\u8a71\u5982\u4e0b\u5716\u6240\u793a\uff1a<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"579\" height=\"400\" src=\"https:\/\/104.es\/wp-content\/uploads\/2023\/08\/image-28.png\" alt=\"\" class=\"wp-image-2844\" srcset=\"https:\/\/104.es\/wp-content\/uploads\/2023\/08\/image-28.png 579w, https:\/\/104.es\/wp-content\/uploads\/2023\/08\/image-28-300x207.png 300w\" sizes=\"auto, (max-width: 579px) 100vw, 579px\" \/><\/figure>\n<\/div>\n\n\n<p>\u63a5\u8457\u5c31\u662f\u9023\u4e0aNodeMCU\u7684MicroPython Shell\uff0c\u8f38\u5165\u4ee5\u4e0b\u7a0b\u5f0f\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>import dht\r\nfrom machine import Pin\r\nd = dht.DHT11(Pin(4))\r\nd.measure()\r\nd.temperature()  #\u6eab\u5ea6\r\nd.humidity()     #\u6fd5\u5ea6<\/code><\/pre>\n\n\n\n<p>\u5225\u5fd8\u4e86\uff0c\u53c3\u8003NodeMCU\u7684\u8173\u4f4d\u5716\uff0cD2\u5176\u5be6\u662fGPIO4\uff0c\u6240\u4ee5\u5728\u7a0b\u5f0f\u4e2d\u662f\u64cd\u4f5c\u6642\u662f\u8a2d\u5b9a\u7b2c4\u652f\u8173\uff08Pin(4)\uff09<\/p>\n\n\n\n<p>\u57f7\u884c\u7684\u7d50\u679c\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"825\" height=\"521\" src=\"https:\/\/104.es\/wp-content\/uploads\/2023\/08\/image-29.png\" alt=\"\" class=\"wp-image-2845\" srcset=\"https:\/\/104.es\/wp-content\/uploads\/2023\/08\/image-29.png 825w, https:\/\/104.es\/wp-content\/uploads\/2023\/08\/image-29-300x189.png 300w, https:\/\/104.es\/wp-content\/uploads\/2023\/08\/image-29-768x485.png 768w, https:\/\/104.es\/wp-content\/uploads\/2023\/08\/image-29-150x95.png 150w, https:\/\/104.es\/wp-content\/uploads\/2023\/08\/image-29-600x379.png 600w\" sizes=\"auto, (max-width: 825px) 100vw, 825px\" \/><\/figure>\n\n\n\n<p>\u4e0a\u9762\u9019\u500b\u4f8b\u5b50\u662f\u651d\u6c0f\u6eab\u5ea6\uff0c\u5982\u679c\u8981\u6539\u70ba\u83ef\u6c0f\u7684\u8a71\uff0c\u900f\u904e\u4ee5\u4e0b\u7684\u516c\u5f0f\u5c31\u53ef\u4ee5\u8f15\u9b06\u8f49\u63db\u4e86\uff1a<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"163\" height=\"68\" src=\"https:\/\/104.es\/wp-content\/uploads\/2023\/08\/image-30.png\" alt=\"\" class=\"wp-image-2846\"\/><\/figure>\n<\/div>\n\n\n<p>\u4ee5\u4e0b\u662f\u6bcf2\u79d2\u5373\u8f38\u51fa\u76ee\u524d\u7684\u6eab\u6fd5\u5ea6\u7684\u7a0b\u5f0f\uff0c\u7e3d\u5171\u6703\u8f38\u51fa10\u6b21\u8cc7\u8a0a\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>import dht\r\nimport time\r\nfrom machine import Pin\r\nd = dht.DHT11(Pin(4))\r\nfor i in range(10):\r\n    d.measure()\r\n    print(\"{}, {}%\".format(d.temperature(), d.humidity()))\r\n    time.sleep(2)<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"guang-gan-ce-qi\">\u5149\u611f\u6e2c\u5668<a href=\"#guang-gan-ce-qi\"><\/a><\/h2>\n\n\n\n<p>NodeMCU\u672c\u8eab\u6709\u4e00\u500bPin\u53ef\u4ee5\u4f5c\u70ba\u985e\u6bd4\u8f38\u5165\u4e4b\u7528\uff0c\u5b83\u662f\u63a5\u8173A0\u3002\u800c\u5728\u9019\u88e1\u7528\u4f86\u91cf\u6e2c\u4eae\u5ea6\u7684\u611f\u6e2c\u6a21\u7d44\u662f\u4e0b\u9762\u9019\u500b\uff1a<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/104.es\/wp-content\/uploads\/2023\/08\/image-31.png\" alt=\"\" class=\"wp-image-2847\" width=\"141\" height=\"255\" srcset=\"https:\/\/104.es\/wp-content\/uploads\/2023\/08\/image-31.png 331w, https:\/\/104.es\/wp-content\/uploads\/2023\/08\/image-31-166x300.png 166w\" sizes=\"auto, (max-width: 141px) 100vw, 141px\" \/><\/figure>\n<\/div>\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/104.es\/wp-content\/uploads\/2023\/08\/image-32.png\" alt=\"\" class=\"wp-image-2848\" width=\"133\" height=\"282\" srcset=\"https:\/\/104.es\/wp-content\/uploads\/2023\/08\/image-32.png 283w, https:\/\/104.es\/wp-content\/uploads\/2023\/08\/image-32-142x300.png 142w\" sizes=\"auto, (max-width: 133px) 100vw, 133px\" \/><\/figure>\n<\/div>\n\n\n<p>\u5b83\u7684\u5e95\u4e0b\u67094\u652f\u63a5\u8173\uff0c\u5f9e\u5de6\u81f3\u53f3\u5206\u5225\u662f\u985e\u6bd4\u8f38\u51fa\u3001\u6578\u4f4d\u8f38\u51fa\u3001GND\u3001\u4ee5\u53ca\u6b63\u96fb\u6e90\u3002\u53ea\u8981\u628aA0\u9023\u63a5\u5230NodeMCU\u7684A0\uff0c\u7136\u5f8c\u518d\u63a5\u4e0a\u96fb\u6e90\uff0c\u5c31\u53ef\u4ee5\u4f7f\u7528\u9019\u500b\u611f\u6e2c\u5668\u4e86\u3002\u9023\u63a5\u7684\u65b9\u5f0f\u5982\u4e0b\uff1a<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"708\" height=\"396\" src=\"https:\/\/104.es\/wp-content\/uploads\/2023\/08\/image-33.png\" alt=\"\" class=\"wp-image-2849\" srcset=\"https:\/\/104.es\/wp-content\/uploads\/2023\/08\/image-33.png 708w, https:\/\/104.es\/wp-content\/uploads\/2023\/08\/image-33-300x168.png 300w, https:\/\/104.es\/wp-content\/uploads\/2023\/08\/image-33-600x336.png 600w\" sizes=\"auto, (max-width: 708px) 100vw, 708px\" \/><\/figure>\n<\/div>\n\n\n<p>NodeMCU\u4e0a\u7684\u9023\u63a5\u65b9\u5f0f\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"761\" src=\"https:\/\/104.es\/wp-content\/uploads\/2023\/08\/image-34.png\" alt=\"\" class=\"wp-image-2850\" srcset=\"https:\/\/104.es\/wp-content\/uploads\/2023\/08\/image-34.png 900w, https:\/\/104.es\/wp-content\/uploads\/2023\/08\/image-34-300x254.png 300w, https:\/\/104.es\/wp-content\/uploads\/2023\/08\/image-34-768x649.png 768w, https:\/\/104.es\/wp-content\/uploads\/2023\/08\/image-34-600x507.png 600w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><\/figure>\n\n\n\n<p>\u9019\u500b\u6a21\u7d44\u9084\u6709\u4e00\u500bD0\u53ef\u4ee5\u76f4\u63a5\u62ff\u4f86\u7576\u4f5c\u662f\u958b\u95dc\u4e4b\u7528\uff0c\u6a21\u7d44\u677f\u4e0a\u7684\u53ef\u8b8a\u96fb\u963b\u5c31\u662f\u8abf\u6574\u9748\u654f\u5ea6\u7528\u7684\u3002<\/p>\n\n\n\n<p>\u7136\u5f8c\uff0c\u5c31\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u7684\u7a0b\u5f0f\u986f\u793a\u51fa\u76ee\u524d\u7684\u4eae\u5ea6\u503c\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>from machine import ADC\r\nimport time\r\nadc = ADC(0)\r\nfor i in range(50):\r\n    print(adc.read())\r\n    time.sleep(0.5)<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"yan-wu-gan-ce-qi\">\u7159\u9727\u611f\u6e2c\u5668<a href=\"#yan-wu-gan-ce-qi\"><\/a><\/h2>\n\n\n\n<p>\u63a5\u4e0b\u4f86\u8981\u5be6\u7fd2\u7684\u662f\u7159\u9727\u611f\u6e2c\u5668\uff0c\u6211\u5011\u9019\u6b21\u7528\u7684\u662fKeyes\u7684\u7159\u9727\u611f\u6e2c\u6a21\u7d44\uff0c\u5176\u5916\u89c0\u5982\u4e0b\uff1a<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/104.es\/wp-content\/uploads\/2023\/08\/image-35.png\" alt=\"\" class=\"wp-image-2851\" width=\"494\" height=\"304\" srcset=\"https:\/\/104.es\/wp-content\/uploads\/2023\/08\/image-35.png 800w, https:\/\/104.es\/wp-content\/uploads\/2023\/08\/image-35-300x185.png 300w, https:\/\/104.es\/wp-content\/uploads\/2023\/08\/image-35-768x473.png 768w, https:\/\/104.es\/wp-content\/uploads\/2023\/08\/image-35-600x370.png 600w\" sizes=\"auto, (max-width: 494px) 100vw, 494px\" \/><\/figure>\n<\/div>\n\n\n<p>\u548c\u5149\u611f\u6e2c\u6a21\u7d44\u985e\u4f3c\uff0c\u5b83\u9700\u89815V\u7684\u96fb\u6e90\u8f38\u5165\u4ee5\u53caGND\u63a5\u5730\u3002\u53e6\u5916\uff0c\u4e0a\u5716\u90a3\u500bOUT\u63a5\u8173\u8981\u63a5\u4e0aNodeMCU\u7684A0\u63a5\u8173\uff0c\u4e5f\u5c31\u662f\u5b83\u4f7f\u7528\u7684\u4e5f\u662f\u985e\u6bd4\u7684\u8f38\u5165\u3002\u7531\u65bcNodeMCU\u53ea\u6709\u4e00\u500b\u985e\u6bd4\u8f38\u5165\u63a5\u8173\uff0c\u56e0\u6b64\u9664\u975e\u52a0\u4e0a\u591a\u5de5\u5668\u7684\u529f\u80fd\uff0c\u4e0d\u7136\u7684\u8a71\uff0c\u540c\u4e00\u500b\u6642\u9593\u53ea\u80fd\u9023\u63a5\u4e00\u500b\u985e\u6bd4\u8f38\u5165\u611f\u6e2c\u5668\uff0c\u4e5f\u5c31\u662f\u4e0a\u9762\u7684\u7159\u9727\u611f\u6e2c\u5668\u548c\u5149\u611f\u6e2c\u5668\u53ea\u80fd\u9023\u63a5\u5176\u4e2d\u4e00\u500b\u3002<\/p>\n\n\n\n<p>\u7159\u9727\u611f\u6e2c\u5668\u7684\u9023\u63a5\u65b9\u5f0f\u5982\u4e0b\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"600\" src=\"https:\/\/104.es\/wp-content\/uploads\/2023\/08\/image-36.png\" alt=\"\" class=\"wp-image-2852\" srcset=\"https:\/\/104.es\/wp-content\/uploads\/2023\/08\/image-36.png 800w, https:\/\/104.es\/wp-content\/uploads\/2023\/08\/image-36-300x225.png 300w, https:\/\/104.es\/wp-content\/uploads\/2023\/08\/image-36-768x576.png 768w, https:\/\/104.es\/wp-content\/uploads\/2023\/08\/image-36-600x450.png 600w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p>\u81f3\u65bc\u7a0b\u5f0f\u5462\uff0c\u5247\u662f\u548c\u5149\u611f\u6e2c\u5668\u7684\u4e00\u6a21\u4e00\u6a23\u5594\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"led-yu-gan-ce-qi-de-zheng-he\">LED\u8207\u611f\u6e2c\u5668\u7684\u6574\u5408<a href=\"#led-yu-gan-ce-qi-de-zheng-he\"><\/a><\/h2>\n\n\n\n<p>\u9084\u8a18\u5f97\u5728\u524d\u4e00\u500b\u55ae\u5143\u4e2d\uff0c\u6211\u5011\u4f7f\u7528\u4e868\u9846LED\u505a\u4e86\u4e00\u500b\u7c21\u55ae\u7684\u96fb\u5b50\u8f2a\u76e4\u904a\u6232\u55ce\uff1f\u540c\u6a23\u76848\u9846LED\uff0c\u9019\u6b21\u6211\u5011\u6253\u7b97\u628a\u5b83\u8b8a\u6210\u4e00\u500b\u4eae\u5ea6\u6307\u793a\u5668\u3002\u56de\u61b6\u4e00\u4e0b\u4e4b\u524d8\u9846LED\u7684\u6a23\u5b50\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"450\" src=\"https:\/\/104.es\/wp-content\/uploads\/2023\/08\/image-37.png\" alt=\"\" class=\"wp-image-2853\" srcset=\"https:\/\/104.es\/wp-content\/uploads\/2023\/08\/image-37.png 800w, https:\/\/104.es\/wp-content\/uploads\/2023\/08\/image-37-300x169.png 300w, https:\/\/104.es\/wp-content\/uploads\/2023\/08\/image-37-768x432.png 768w, https:\/\/104.es\/wp-content\/uploads\/2023\/08\/image-37-600x338.png 600w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p>\u9019\u6b21\u52a0\u4e0a\u524d\u9762\u6e2c\u8a66\u7684\u5149\u611f\u6e2c\u5668\uff0c\u8a18\u5f97\u52a0\u4e0a\u96fb\u6e90\u4ee5\u53ca\u9023\u63a5\u4e0aA0\uff0c\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"450\" src=\"https:\/\/104.es\/wp-content\/uploads\/2023\/08\/image-38.png\" alt=\"\" class=\"wp-image-2854\" srcset=\"https:\/\/104.es\/wp-content\/uploads\/2023\/08\/image-38.png 800w, https:\/\/104.es\/wp-content\/uploads\/2023\/08\/image-38-300x169.png 300w, https:\/\/104.es\/wp-content\/uploads\/2023\/08\/image-38-768x432.png 768w, https:\/\/104.es\/wp-content\/uploads\/2023\/08\/image-38-600x338.png 600w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p>\u4f7f\u7528\u4ee5\u4e0b\u7684\u7a0b\u5f0f\uff0c\u5c31\u53ef\u4ee5\u900f\u904e\u4eae\u5ea6\u4f86\u986f\u793a\u4e0d\u540c\u6578\u91cf\u7684LED\u71c8\u865f\u4e86\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>from machine import ADC\r\nfrom machine import Pin\r\nimport time\r\nled_no = &#91;16,5,4,0, 2, 14, 12, 13]\r\ndef switch_off():\r\n\tfor led in leds:\r\n\t\tled.off()\r\n\r\nleds = list()\r\nfor i in range(len(led_no)):\r\n\tled = Pin(led_no&#91;i], Pin.OUT)\r\n\tleds.append(led)\r\n\r\nadc = ADC(0)\r\nwhile True:\r\n\tswitch_off()\r\n\tlevel = adc.read()\r\n\tled = int(level\/400 * 8)\r\n\tfor i in range(led):\r\n\t\tleds&#91;i].on()<\/code><\/pre>\n\n\n\n<p>\u4e0a\u9762\u9019\u500b\u7a0b\u5f0f\u5728\u4eae\u5ea6\u6108\u6697\u7684\u6642\u5019\uff0c\u986f\u793a\u7684\u71c8\u5149\u6578\u6108\u591a\uff0c\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"\u5149\u611f\u6e2c\u5668\u548cLED\u7684\u7d50\u5408\" width=\"640\" height=\"360\" src=\"https:\/\/www.youtube.com\/embed\/ublwZcLYyJ4?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>\n<\/div><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"ji-dian-qi-yu-gan-ce-qi-de-zheng-he\">\u7e7c\u96fb\u5668\u8207\u611f\u6e2c\u5668\u7684\u6574\u5408<a href=\"#ji-dian-qi-yu-gan-ce-qi-de-zheng-he\"><\/a><\/h2>\n\n\n\n<p>\u6211\u5011\u4f7f\u7528\u7684\u7e7c\u96fb\u5668\u6a21\u7d44\u662f\u4e0b\u9762\u9019\u500b\uff1a<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/104.es\/wp-content\/uploads\/2023\/08\/image-39.png\" alt=\"\" class=\"wp-image-2855\" width=\"258\" height=\"299\" srcset=\"https:\/\/104.es\/wp-content\/uploads\/2023\/08\/image-39.png 518w, https:\/\/104.es\/wp-content\/uploads\/2023\/08\/image-39-259x300.png 259w\" sizes=\"auto, (max-width: 258px) 100vw, 258px\" \/><\/figure>\n<\/div>\n\n\n<p>\u540c\u6a23\u5730\uff0c\u5b83\u67093\u652f\u63a5\u8173\uff0c\u81ea\u5de6\u800c\u53f3\u5206\u5225\u662f\u4fe1\u865f\u3001\u6b63\u96fb\u6e90\u4ee5\u53caGND\u3002\u7531\u65bc\u7e7c\u96fb\u5668\u9700\u8981\u6bd4\u8f03\u5927\u7684\u96fb\u58d3\uff0c\u56e0\u6b64\u53ea\u80fd\u5920\u904e\u5916\u63a5\u76845V\u96fb\u6e90\u6216\u662fNodeMCU\u64f4\u5145\u677f\u4e0a\u76845V\u96fb\u6e90\u624d\u63a8\u5f97\u52d5\uff0c\u7121\u6cd5\u76f4\u63a5\u4f7f\u7528NodeMCU\u4e3b\u677f\u4e0a\u76843.3V\u96fb\u6e90\u5594\u3002<\/p>\n\n\n\n<p>\u63a5\u8457\uff0c\u6211\u5011\u628a\u5b83\u548c\u5149\u611f\u6e2c\u5668\u4e00\u8d77\u4f7f\u7528\u5728NodeMCU\u4e0a\uff0c\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"600\" src=\"https:\/\/104.es\/wp-content\/uploads\/2023\/08\/image-40.png\" alt=\"\" class=\"wp-image-2856\" srcset=\"https:\/\/104.es\/wp-content\/uploads\/2023\/08\/image-40.png 800w, https:\/\/104.es\/wp-content\/uploads\/2023\/08\/image-40-300x225.png 300w, https:\/\/104.es\/wp-content\/uploads\/2023\/08\/image-40-768x576.png 768w, https:\/\/104.es\/wp-content\/uploads\/2023\/08\/image-40-600x450.png 600w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"680\" src=\"https:\/\/104.es\/wp-content\/uploads\/2023\/08\/image-41.png\" alt=\"\" class=\"wp-image-2857\" srcset=\"https:\/\/104.es\/wp-content\/uploads\/2023\/08\/image-41.png 800w, https:\/\/104.es\/wp-content\/uploads\/2023\/08\/image-41-300x255.png 300w, https:\/\/104.es\/wp-content\/uploads\/2023\/08\/image-41-768x653.png 768w, https:\/\/104.es\/wp-content\/uploads\/2023\/08\/image-41-600x510.png 600w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p>\u628a\u7e7c\u96fb\u5668\u7684S\u4fe1\u865f\u7dda\u9023\u63a5\u5230D2\uff0c\u4e5f\u5c31\u662f\u7b2c4\u652f\u63a5\u8173\uff0c\u6b63\u8ca0\u96fb\u6e90\u63a5\u5230\u64f4\u5145\u677f\u7684USB\u96fb\u6e90\u8f38\u51fa\u7684\u5730\u65b9\uff0c\u7136\u5f8c\u57f7\u884c\u4ee5\u4e0b\u7684\u7a0b\u5f0f\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>from machine import Pin\r\nfrom machine import ADC\r\nrelay = Pin(4, Pin.OUT)\r\nwhile True:\r\n    if adc.read() > 500:\r\n        relay.on()\r\n    else:\r\n        relay.off()<\/code><\/pre>\n\n\n\n<p>\u4ee5\u4e0b\u662f\u57f7\u884c\u7684\u7d50\u679c\u793a\u7bc4\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"NodeMCU\u5149\u611f\u6e2c\u5668\u6a21\u7d44\u548c\u7e7c\u96fb\u5668\u7684\u61c9\u7528\u793a\u7bc4\" width=\"640\" height=\"360\" src=\"https:\/\/www.youtube.com\/embed\/Jq42GXnNIuo?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>\n<\/div><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>\u4f7f\u7528\u5d4c\u5165\u5f0f\u7cfb\u7d71\u5176\u4e2d\u4e00\u500b\u6700\u4e3b\u8981\u7684\u76ee\u7684\u5c31\u662f\u5e0c\u671b\u80fd\u5920\u6536\u96c6\u74b0\u5883\u4e2d\u7684\u8cc7\u8a0a\uff0c\u800c\u9019\u4e9b\u8cc7\u8a0a\u5c31\u9700\u8981\u900f\u904e\u611f\u6e2c\u5668\u4f86\u52a0\u4ee5\u5be6\u73fe\u3002\u5728\u9019\u500b\u55ae\u5143\u4e2d\uff0c\u6211\u5011\u5c07\u9010\u4e00\u4ecb\u7d39\u4e00\u4e9b\u65b9\u4fbf\u597d\u7528\u7684\u611f\u6e2c\u5668\u3002<\/p>\n","protected":false},"author":1,"featured_media":2854,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[13,15],"tags":[216,215,217,206],"class_list":["post-2840","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nodemcu","category-python","tag-216","tag-215","tag-217","tag-206"],"jetpack_featured_media_url":"https:\/\/104.es\/wp-content\/uploads\/2023\/08\/image-38.png","jetpack-related-posts":[],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/104.es\/index.php\/wp-json\/wp\/v2\/posts\/2840","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=2840"}],"version-history":[{"count":2,"href":"https:\/\/104.es\/index.php\/wp-json\/wp\/v2\/posts\/2840\/revisions"}],"predecessor-version":[{"id":2858,"href":"https:\/\/104.es\/index.php\/wp-json\/wp\/v2\/posts\/2840\/revisions\/2858"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/104.es\/index.php\/wp-json\/wp\/v2\/media\/2854"}],"wp:attachment":[{"href":"https:\/\/104.es\/index.php\/wp-json\/wp\/v2\/media?parent=2840"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/104.es\/index.php\/wp-json\/wp\/v2\/categories?post=2840"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/104.es\/index.php\/wp-json\/wp\/v2\/tags?post=2840"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}