{"id":10992,"date":"2023-08-20T00:08:09","date_gmt":"2023-08-19T16:08:09","guid":{"rendered":"https:\/\/blog.iyatt.com\/?p=10992"},"modified":"2024-05-05T12:32:01","modified_gmt":"2024-05-05T04:32:01","slug":"%e7%94%b5%e5%8e%8b%e6%a3%80%e6%b5%8b%e6%a8%a1%e5%9d%97","status":"publish","type":"post","link":"https:\/\/blog.iyatt.com\/?p=10992","title":{"rendered":"\u7535\u963b\u5206\u538b\u6cd5\u7535\u538b\u68c0\u6d4b\u6a21\u5757"},"content":{"rendered":"

\"file\"<\/p>\n

\u8fd9\u4e2a\u6a21\u5757\u5176\u5b9e\u5c31\u662f\u7528\u7535\u963b\u5206\u538b\uff0c\u5927\u6982\u7535\u8def\u5c31\u662f\u4e0b\u9762\u7684\u6837\u5b50\u5427
\n\"file\"<\/p>\n

\u6211\u7528\u4e07\u7528\u8868\u6d4b\u4e86\u4e00\u4e0b\uff0c-<\/code> \u548c S<\/code> \u4e4b\u95f4\u7535\u963b\u7ea6\u4e3a 7.4k\u03a9\uff0cGND<\/code> \u548c VCC<\/code> \u4e4b\u95f4\u7ea6 37.3k\u03a9\uff0c\u5927\u7ea6 5.0405 \u500d\u7684\u5173\u7cfb\uff0c\u5e76\u4e0d\u662f\u521a\u597d 5 \u500d\uff0c\u6ee1\u8db3\u7cbe\u5ea6\u8981\u6c42\u5c31\u884c\u3002<\/p>\n

\u63a5\u7ebf\u5982\u8868<\/p>\n

\\begin{array}{|c|c|}\n\\hline\n\u7535\u538b\u68c0\u6d4b\u6a21\u5757 & Arduino \\\\\n\\hline\n- & GND \\\\\n\\hline\nS & A0 \\\\\n\\hline\n\\end{array}<\/code><\/pre>\n
\u4f7f\u7528\u6a21\u62df\u5f15\u811a A0 \u8bfb\u53d6 S \u7aef\u7684\u6a21\u62df\u4fe1\u53f7\u5927\u5c0f\uff0c\u6a21\u62df\u4fe1\u53f7\u7684\u53d6\u503c\u8303\u56f4\u662f 0~1023\uff0c\u90a3\u4e48\\frac{\u6a21\u62df\u4fe1\u53f7\u6570\u503c}{1023}=\\frac{S\u7aef\u7684\u7535\u538b}{Arduino \u7535\u6e90\u7535\u538b}<\/code>\uff0c\u6240\u4ee5S\u7aef\u7684\u7535\u538b=\\frac{\u6a21\u62df\u4fe1\u53f7\u6570\u503c}{1023}\\times Arduino \u7535\u6e90\u7535\u538b<\/code>\uff0c\u5219\u6709VCC \u7aef\u7535\u538b=S\u7aef\u7684\u7535\u538b * \\frac{GND \u548c VCC \u4e4b\u95f4\u7535\u963b\u503c}{-\u548cS\u7aef\u7535\u963b\u503c}=\\frac{\u6a21\u62df\u4fe1\u53f7\u6570\u503c}{1023}\\times Arduino \u7535\u6e90\u7535\u538b\\times \\frac{GND \u548c VCC \u4e4b\u95f4\u7535\u963b\u503c}{-\u548cS\u7aef\u7535\u963b\u503c}<\/code>\u3002<\/p>\n
\u8fd9\u91cc\u53ea\u662f\u6f14\u793a\uff0c\u5bf9\u7cbe\u5ea6\u8981\u6c42\u4e0d\u662f\u90a3\u4e48\u9ad8\uff0c\\frac{GND \u548c VCC \u4e4b\u95f4\u7535\u963b\u503c}{-\u548cS\u7aef\u7535\u963b\u503c}<\/code>\u5c31\u53d6 5 \u4e86\u3002\u6211\u8fd9\u91cc Arduino \u7535\u6e90\u662f USB \u63d2\u5728\u7b14\u8bb0\u672c\u7535\u8111\u4e0a\u7684\uff0c\u6211\u62ff\u4e07\u7528\u8868\u6d4b\u8bd5\u4e86\u4e00\u4e0b\uff0c\u5b9e\u9645\u7535\u538b 4.852V\uff08\u628a\u7535\u8111\u5185\u90e8\u7684\u89c6\u4f5c\u5185\u963b\uff0c\u5916\u8bbe\u8d8a\u591a\uff0c\u4f9b\u7535\u7535\u6d41\u8d8a\u5927\uff0c\u5185\u963b\u5206\u538b\u8d8a\u591a\uff0c\u6709\u6548\u7535\u538b\u5c31\u4f1a\u4e0b\u964d\uff09\uff0c\u8fd9\u4e2a\u6211\u5c31\u662f\u53d6\u7684\u5b9e\u9645\u503c\uff0c\u6ca1\u6709\u7167 USB \u6807\u51c6 5V \u6765\u7b97\u3002\u56e0\u6b64\u786e\u5b9a\u8ba1\u7b97\u5f0f\u4e3aVCC\u7aef\u7535\u538b=\\frac{\u6a21\u62df\u4fe1\u53f7\u6570\u503c}{1023}\\times4.852\\times5<\/code><\/p>\n
#define VOLTAGE     4.852\n#define RATIO       5\n\nvoid setup()\n{\n    Serial.begin(9600);\n\n    pinMode(A0, INPUT);\n}\n\nvoid loop()\n{\n    Serial.println(analogRead(A0) \/ 1023.0 * VOLTAGE * RATIO);\n    delay(500);\n}<\/code><\/pre>\n
\u56e0\u6b64\u8fd9\u4e2a\u7535\u538b\u6d4b\u91cf\u6a21\u5757\u7684\u6700\u7ec8\u7cbe\u5ea6\u5176\u5b9e\u548c Arduino \u7535\u6e90\u7535\u538b\uff08VOLTAGE\uff09\u548c\u5206\u538b\u7535\u963b\u6bd4\u503c\uff08RATIO\uff09\u6709\u5173\uff0c\u5982\u679c\u8981\u4fdd\u8bc1\u6a21\u5757\u6d4b\u91cf\u7cbe\u786e\uff0c\u9996\u5148\u5c31\u8981\u6d4b\u91cf\u6821\u6b63\u8fd9\u4e24\u4e2a\u53c2\u6570\u3002<\/p>\n
\u4e0b\u9762\u662f\u7535\u538b\u68c0\u6d4b\u6a21\u5757\u6d4b\u91cf\u7684\u67d0\u7535\u6e90\u4e24\u7aef\u7535\u538b\u548c\u4e07\u7528\u8868\u6d4b\u91cf\u7684\u7ed3\u679c
\n\"file\"
\n\"file\"<\/p>\n","protected":false},"excerpt":{"rendered":"
\u8fd9\u4e2a\u6a21\u5757\u5176\u5b9e\u5c31\u662f\u7528\u7535\u963b\u5206\u538b\uff0c\u5927\u6982\u7535\u8def\u5c31\u662f\u4e0b\u9762\u7684\u6837\u5b50\u5427 \u6211\u7528\u4e07\u7528\u8868\u6d4b\u4e86\u4e00\u4e0b\uff0c- \u548c S \u4e4b\u95f4\u7535\u963b\u7ea6\u4e3a 7.4k\u03a9 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"zakra_page_container_layout":"customizer","zakra_page_sidebar_layout":"customizer","zakra_remove_content_margin":false,"zakra_sidebar":"customizer","zakra_transparent_header":"customizer","zakra_logo":0,"zakra_main_header_style":"default","zakra_menu_item_color":"","zakra_menu_item_hover_color":"","zakra_menu_item_active_color":"","zakra_menu_active_style":"","zakra_page_header":true,"_lmt_disableupdate":"no","_lmt_disable":"no","footnotes":""},"categories":[1],"tags":[],"class_list":["post-10992","post","type-post","status-publish","format-standard","hentry","category-all"],"modified_by":"IYATT-yx","_links":{"self":[{"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=\/wp\/v2\/posts\/10992","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=10992"}],"version-history":[{"count":0,"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=\/wp\/v2\/posts\/10992\/revisions"}],"wp:attachment":[{"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=10992"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=10992"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=10992"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}