{"id":1881,"date":"2022-12-27T16:07:02","date_gmt":"2022-12-27T08:07:02","guid":{"rendered":"https:\/\/104.es\/?p=1881"},"modified":"2022-12-27T16:07:02","modified_gmt":"2022-12-27T08:07:02","slug":"raspberry-pi-pico-w-dht11","status":"publish","type":"post","link":"https:\/\/104.es\/index.php\/2022\/12\/27\/raspberry-pi-pico-w-dht11\/","title":{"rendered":"Raspberry Pi Pico W + DHT11\u6eab\u6fd5\u5ea6\u91cf\u6e2c"},"content":{"rendered":"\n<p>\u901a\u5e38\u6211\u5011\u7b2c\u4e00\u6b21\u62ff\u5230\u4e00\u500b\u65b0\u7684\u958b\u767c\u677f\uff0c\u6700\u65b0\u6703\u60f3\u8981\u4f7f\u7528\u5c31\u662fDHT11\u6eab\u6fd5\u5ea6\u611f\u6e2c\u5668\uff0c\u56e0\u70ba\u5b83\u4fbf\u5b9c\u597d\u7528\uff0c\u800c\u4e14\u76f4\u63a5\u4f7f\u7528\u6578\u4f4d\u63a5\u8173\u5373\u53ef\u53d6\u5f97\u6240\u9700\u7684\u6578\u503c\u3002\u5728\u9019\u4e00\u7bc7\u6587\u7ae0\u4e2d\u6211\u5011\u5c31\u4f86\u770b\u770b\u5982\u4f55\u5229\u7528\u5225\u4eba\u505a\u597d\u7684\u73fe\u6210\u7684\u51fd\u5f0f\uff0c\u5957\u7528\u5728\u81ea\u5df1\u7684 Pico W\u677f\u5b50\u4e0a\u3002<\/p>\n\n\n\n<p>\u5728\u958b\u59cb\u9023\u63a5DHT11\u4e4b\u524d\uff0c\u5148\u4f86\u770b\u770b\u5982\u4f55\u4f7f\u7528\u6676\u7247\u5167\u5efa\u7684\u6eab\u5ea6\u611f\u6e2c\u5668\u3002\u6839\u64da\u8aaa\u660e\u6587\u4ef6\u7684\u5167\u5bb9\uff0c\u5167\u5efa\u7684\u6eab\u5ea6\u611f\u6e2c\u5668\u662f\u653e\u5728\u7de8\u865f4\u7684ADC\u4e0a\uff0c\u4e5f\u5c31\u662fADC(4)\uff0c\u4f46\u662f\u5b83\u8b80\u51fa\u4f86\u662f\u4e00\u500b\u6578\u503c\uff0c\u6211\u5011\u9700\u8981\u628a\u5b83\u8f49\u63db\u6210\u96fb\u58d3\u4e4b\u5f8c\u518d\u63db\u7b97\u6210\u5be6\u969b\u7684\u6eab\u5ea6\uff0c\u6240\u4ee5\u8b80\u5230\u7684\u6578\u503c\u8981\u7d93\u904e\u4e00\u4e9b\u8a08\u7b97\u624d\u6703\u5f97\u5230\u6b63\u78ba\u7684\u6676\u7247\u8868\u9762\u6eab\u5ea6\u3002\u4f46\u662f\uff0c\u662f\u5426\u548c\u5be6\u969b\u7684\u6eab\u5ea6\u4e00\u81f4\uff0c\u9084\u8981\u770b\u96fb\u58d3\u7684\u7a69\u5b9a\u5ea6\u800c\u5b9a\u3002<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u662f\u4fee\u6539\u81ea\u8aaa\u660e\u6587\u4ef6\u7bc4\u4f8b\u7a0b\u5f0f\u7684\u7a0b\u5f0f\u78bc\uff0c\u5c0d\u65bc\u5982\u4f55\u8a08\u7b97\u4ee5\u53ca\u5982\u4f55\u6821\u6e96\u6709\u8208\u8da3\u7684\u540c\u5b78\uff0c\u53ef\u4ee5\u76f4\u63a5\u53bb\u53c3\u8003RP2040\u9019\u9846\u6676\u7247\u7684\u8aaa\u660e\u624b\u518a\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>from machine import ADC\nimport time\n \nts = ADC(4)\ncfactor = 3.3 \/ (65535)\n \nwhile True:\n    value = ts.read_u16() * cfactor \n    temperature = 27 - (value - 0.706)\/0.001721\n    print(temperature)\n    time.sleep(2)<\/code><\/pre>\n\n\n\n<p>\u4ee5\u4e0b\u662f\u57f7\u884c\u7684\u7d50\u679c\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1429\" height=\"833\" src=\"http:\/\/104es.nkust.org\/wp-content\/uploads\/2022\/12\/image-13.png?w=1024\" alt=\"\" class=\"wp-image-1891\" srcset=\"https:\/\/104.es\/wp-content\/uploads\/2022\/12\/image-13.png 1429w, https:\/\/104.es\/wp-content\/uploads\/2022\/12\/image-13-300x175.png 300w, https:\/\/104.es\/wp-content\/uploads\/2022\/12\/image-13-1024x597.png 1024w, https:\/\/104.es\/wp-content\/uploads\/2022\/12\/image-13-768x448.png 768w\" sizes=\"auto, (max-width: 1429px) 100vw, 1429px\" \/><\/figure>\n\n\n\n<p>\u4e0a\u8ff0\u7684\u65b9\u6cd5\u53d6\u5f97\u7684\u662f\u6676\u7247\u8868\u9762\u7684\u6eab\u5ea6\uff0c\u74b0\u5883\u7684\u6eab\u6fd5\u5ea6\u5247\u662f\u8981\u9760DHT11\uff0cDHT11\u662f\u6578\u4f4d\u578b\u7684\u6eab\u6fd5\u5ea6\u611f\u6e2c\u5668\u5171\u67093\u652f\u63a5\u8173\uff0c\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"405\" height=\"488\" src=\"http:\/\/104es.nkust.org\/wp-content\/uploads\/2022\/12\/image-14.png?w=405\" alt=\"\" class=\"wp-image-1893\" srcset=\"https:\/\/104.es\/wp-content\/uploads\/2022\/12\/image-14.png 405w, https:\/\/104.es\/wp-content\/uploads\/2022\/12\/image-14-249x300.png 249w\" sizes=\"auto, (max-width: 405px) 100vw, 405px\" \/><\/figure>\n\n\n\n<p>\u4ee5\u9019\u500b\u611f\u6e2c\u5668\u70ba\u4f8b\uff0c\u53f3\u5074\u662fGND\u63a5\u5730\uff08\u5728\u6b64\u4f8b\u63a5\u5230\u5be6\u9ad4\u63a5\u8173\u7684\u7b2c38\u8173\uff09\uff0c\u4e2d\u9593\u662fVCC\u63a5\u6b633.3V~5V\uff08\u5728\u6b64\u4f8b\u8acb\u63a5\u5230\u5be6\u9ad4\u63a5\u8173\u7684\u7b2c36\u8173\uff09\uff0c\u5de6\u5074\u662f\u4fe1\u865f\u8f38\u51fa\u7dda\uff0c\u76f4\u63a5\u63a5\u5230GPIO\u7684\u4efb\u4e00\u63a5\u8173\u3002\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c\u6211\u5011\u628a\u5b83\u63a5\u5230\u7b2c29\u8173\uff0c\u4e5f\u5c31\u662fGP22\u7684\u90a3\u652f\u63a5\u8173\u3002\u7531\u65bc\u6211\u5011\u662f\u9023\u63a5\u5230\u9eb5\u5305\u677f\u4e0a\uff0c\u70ba\u4e86\u65e5\u5f8c\u65b9\u4fbf\u9023\u63a5\u5176\u5b83\u7684\u611f\u6e2c\u5668\uff0c\u6240\u4ee5\u96fb\u6e90\u662f\u5f9e\u532f\u6d41\u6392\u8655\u62c9\u51fa\u4f86\u3002\u63a5\u7dda\u5716\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1013\" height=\"737\" src=\"http:\/\/104es.nkust.org\/wp-content\/uploads\/2022\/12\/image-15.png?w=1013\" alt=\"\" class=\"wp-image-1896\" srcset=\"https:\/\/104.es\/wp-content\/uploads\/2022\/12\/image-15.png 1013w, https:\/\/104.es\/wp-content\/uploads\/2022\/12\/image-15-300x218.png 300w, https:\/\/104.es\/wp-content\/uploads\/2022\/12\/image-15-768x559.png 768w\" sizes=\"auto, (max-width: 1013px) 100vw, 1013px\" \/><\/figure>\n\n\n\n<p>\u63a5\u7dda\u5b8c\u6210\u4e4b\u5f8c\u6700\u91cd\u8981\u7684\u662f\u8b80\u53d6DHT11\u6578\u503c\u5167\u5bb9\u7684\u51fd\u5f0f\u3002\u4e0d\u540c\u7684\u88dd\u7f6e\u8b80\u53d6\u7684\u526f\u7a0b\u5f0f\u90fd\u4e0d\u540c\uff0c\u4e0d\u662f\u6bcf\u4e00\u500b\u90fd\u53ef\u4ee5\u4f7f\u7528\u3002\u5c0d\u65bcPico W\u4f86\u8aaa\uff0c\u7b46\u8005\u627e\u5230\u7684\u662f\u4ee5\u4e0b\u9019\u500b\u9023\u7d50\u6240\u63d0\u4f9b\u7684dht.py\u7a0b\u5f0f\u3002<\/p>\n\n\n\n<p>https:\/\/www.instructables.com\/DHT11-With-Raspberry-Pi-Pico\/<\/p>\n\n\n\n<p>\u8acb\u9032\u5165\u8a72\u7db2\u9801\uff0c\u627e\u5230dht.py\u7684\u7a0b\u5f0f\u78bc\uff0c\u50cf\u662f\u4e0b\u9762\u9019\u500b\u6a23\u5b50\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"849\" height=\"693\" src=\"http:\/\/104es.nkust.org\/wp-content\/uploads\/2022\/12\/image-16.png?w=849\" alt=\"\" class=\"wp-image-1898\" srcset=\"https:\/\/104.es\/wp-content\/uploads\/2022\/12\/image-16.png 849w, https:\/\/104.es\/wp-content\/uploads\/2022\/12\/image-16-300x245.png 300w, https:\/\/104.es\/wp-content\/uploads\/2022\/12\/image-16-768x627.png 768w\" sizes=\"auto, (max-width: 849px) 100vw, 849px\" \/><\/figure>\n\n\n\n<p>\u8907\u88fd\u88e1\u9762\u6240\u6709\u7684\u7a0b\u5f0f\u78bc\uff0c\u5728\u81ea\u5df1\u7684Thonny\u7de8\u8f2f\u74b0\u5883\u4e2d\u958b\u555f\u4e00\u500b\u65b0\u7684\u7a0b\u5f0f\u6a94\u6848\uff0c\u8cbc\u4e0a\u525b\u525b\u8907\u88fd\u597d\u7684\u7a0b\u5f0f\u5167\u5bb9\uff0c\u7136\u5f8c\u9078\u64c7\u5132\u5b58\u5230Pico\u7684\u677f\u5b50\u4e0a\uff0c\u4e00\u6a23\u547d\u540d\u70badht.py\u5c31\u53ef\u4ee5\u4e86\u3002<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u7684\u7a0b\u5f0f\u5373\u662f\u61c9\u7528\u4e0a\u8ff0\u7684dht.py\uff0c\u6bcf2\u79d2\u5075\u6e2c\u4e00\u6b21\u76ee\u524d\u7684\u6eab\u6fd5\u5ea6\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>from machine import Pin\nimport time\nfrom dht import DHT11\npin = Pin(22, Pin.OUT, Pin.PULL_UP)\nsensor = DHT11(pin)\nwhile True:\n    time.sleep(2)\n    try:   \n        sensor.measure()\n        t  = (sensor.temperature)\n        h = (sensor.humidity)\n        print(\"{}, {}%\".format(t, h))\n    except:\n        pass\n<\/code><\/pre>\n\n\n\n<p> \u57f7\u884c\u7684\u904e\u7a0b\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1429\" height=\"833\" src=\"http:\/\/104es.nkust.org\/wp-content\/uploads\/2022\/12\/image-17.png?w=1024\" alt=\"\" class=\"wp-image-1901\" srcset=\"https:\/\/104.es\/wp-content\/uploads\/2022\/12\/image-17.png 1429w, https:\/\/104.es\/wp-content\/uploads\/2022\/12\/image-17-300x175.png 300w, https:\/\/104.es\/wp-content\/uploads\/2022\/12\/image-17-1024x597.png 1024w, https:\/\/104.es\/wp-content\/uploads\/2022\/12\/image-17-768x448.png 768w\" sizes=\"auto, (max-width: 1429px) 100vw, 1429px\" \/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>\u901a\u5e38\u6211\u5011\u7b2c\u4e00\u6b21\u62ff\u5230\u4e00\u500b\u65b0\u7684\u958b\u767c\u677f\uff0c\u6700\u65b0\u6703\u60f3\u8981\u4f7f\u7528\u5c31\u662fDHT11\u6eab\u6fd5\u5ea6\u611f\u6e2c\u5668\uff0c\u56e0\u70ba\u5b83\u4fbf\u5b9c\u597d\u7528\uff0c\u800c\u4e14\u76f4\u63a5\u4f7f\u7528\u6578\u4f4d\u63a5\u8173\u5373\u53ef\u53d6\u5f97\u6240\u9700\u7684\u6578\u503c\u3002\u5728\u9019\u4e00\u7bc7\u6587\u7ae0\u4e2d\u6211\u5011\u5c31\u4f86\u770b\u770b\u5982\u4f55\u5229\u7528\u5225\u4eba\u505a\u597d\u7684\u73fe\u6210\u7684\u51fd\u5f0f\uff0c\u5957\u7528\u5728\u81ea\u5df1\u7684 Pico W\u677f\u5b50\u4e0a\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":[16],"tags":[],"class_list":["post-1881","post","type-post","status-publish","format-standard","hentry","category-rasbperry-pi-pico"],"jetpack_featured_media_url":"","jetpack-related-posts":[],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/104.es\/index.php\/wp-json\/wp\/v2\/posts\/1881","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=1881"}],"version-history":[{"count":0,"href":"https:\/\/104.es\/index.php\/wp-json\/wp\/v2\/posts\/1881\/revisions"}],"wp:attachment":[{"href":"https:\/\/104.es\/index.php\/wp-json\/wp\/v2\/media?parent=1881"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/104.es\/index.php\/wp-json\/wp\/v2\/categories?post=1881"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/104.es\/index.php\/wp-json\/wp\/v2\/tags?post=1881"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}