{"id":17371,"date":"2022-09-30T09:36:00","date_gmt":"2022-09-30T01:36:00","guid":{"rendered":"https:\/\/www.circuspi.com\/?p=17371"},"modified":"2022-09-30T16:53:58","modified_gmt":"2022-09-30T08:53:58","slug":"automatic-watering-plants","status":"publish","type":"post","link":"https:\/\/www.circuspi.com\/index.php\/2022\/09\/30\/automatic-watering-plants\/","title":{"rendered":"\u6a39\u8393\u6d3e\u611f\u6e2c\u5668\u5be6\u4f5c(\u56db)\uff1a\u690d\u7269\u76e3\u6e2c\u5668"},"content":{"rendered":"\n<p><style>\n\/* ###\u5be6\u9a57\u4e0b\u4e00\u5217### *\/\n\na:link {color:#0695e4\n;}    \/* \u8a2d\u5b9a\u5c1a\u672a\u9ede\u95b1\u904e\u7684\u9023\u7d50\u6a23\u5f0f *\/\na:visited {color:#0695e4\n;} \/* \u8a2d\u5b9a\u904e\u53bb\u66fe\u7d93\u95b1\u904e\u7684\u9023\u7d50 *\/\na:hover {color:#0695e4\n;}   \/* \u8a2d\u5b9a\u6ed1\u9f20\u6e38\u6a19\u6307\u5728\u9023\u7d50\u4f4d\u7f6e\u4e0a\u7684\u6a23\u5f0f *\/\na:active {color:#0000BB;}  \/* \u8a2d\u5b9a\u4e0a\u9ede\u64ca\u904e\u7684\u9023\u7d50\u6a23\u5f0f *\/\n<\/style><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"526\" src=\"https:\/\/www.circuspi.com\/wp-content\/uploads\/2022\/09\/1000x526-5.jpg\" alt=\"\u6a39\u8393\u6d3e\u611f\u6e2c\u5668\u5be6\u4f5c(\u56db)\uff1a\u690d\u7269\u76e3\u6e2c\u5668\" class=\"wp-image-17691\"\/><\/figure>\n\n\n\n<p><em>\u672c\u6587\u8b6f\u81ea\u6a39\u8393\u6d3e\u96dc\u8a8c 114 \u671f(MagPi issue 114)\uff0c\u539f\u6587\u6a19\u984c\u70ba Make a plant monitor\uff08\u5716\u7247\u4f86\u6e90\u53d6\u81ea\u96dc\u8a8c\u5167\u9801\uff09\uff0c\u76f8\u95dc\u539f\u59cb\u7a0b\u5f0f\u78bc\u53ef\u53c3\u8003<\/em><a href=\"https:\/\/github.com\/themagpimag\/magpi-issue114\/tree\/master\/SensoryWorld4\" target=\"_blank\" rel=\"noreferrer noopener\"><em>\u5b98\u65b9\u7a0b\u5f0f\u78bc<\/em><\/a><em>\u3002\u672c\u7bc7\u8207\u539f\u6587\u540c\u6a23\u4f7f\u7528 CC 3.0 BY-NC-SA \u6388\u6b0a\uff0c\u6b61\u8fce\u6a19\u8a3b\u539f\u4f5c\u8005\u8f49\u8f09\uff0c\u82e5\u6709\u4efb\u4f55\u4e0d\u59a5\u8207\u6307\u6559\u656c\u8acb\u544a\u77e5\u3002<\/em><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e00\u3001\u524d\u8a00<\/h2>\n\n\n\n<p>\u300c<a href=\"https:\/\/www.circuspi.com\/?s=%E6%A8%B9%E8%8E%93%E6%B4%BE%E6%84%9F%E6%B8%AC%E5%99%A8%E5%AF%A6%E4%BD%9C\" target=\"_blank\" rel=\"noreferrer noopener\">\u6a39\u8393\u6d3e\u611f\u6e2c\u5668\u5be6\u4f5c<\/a>\u300d\u7cfb\u5217\u4e2d\u6211\u5011\u5c07\u6703\u63a2\u7d22\u4e00\u4e9b\u5e38\u898b\u7684\u611f\u6e2c\u5668\uff0c\u4e26\u88fd\u4f5c\u51fa\u53ef\u57f7\u884c\u7684\u5c08\u6848\u3002\u5728\u524d\u9762\u7684<a href=\"https:\/\/www.circuspi.com\/?s=%E6%A8%B9%E8%8E%93%E6%B4%BE%E6%84%9F%E6%B8%AC%E5%99%A8%E5%AF%A6%E4%BD%9C\" target=\"_blank\" rel=\"noreferrer noopener\">\u6a39\u8393\u6d3e\u611f\u6e2c\u5668\u5be6\u4f5c<\/a>\u4e2d\uff0c\u6211\u5011\u88fd\u4f5c\u4e86\u5e7e\u500b\u8b66\u5831\u7cfb\u7d71\uff0c\u95dc\u65bc\u706b\u7130\u8207\u74e6\u65af\u7684\u5b89\u5168\u6027\uff0c\u4ee5\u53ca\u5075\u6e2c\u5165\u4fb5\u8005\uff0c\u53e6\u5916\u9084\u6709\u7c21\u6613\u7684\u6c23\u8c61\u7ad9\u3002<\/p>\n\n\n\n<p>\u5728\u7c21\u6613\u6c23\u8c61\u7ad9\u5be6\u4f5c\u4e2d\uff0c\u6211\u5011\u4f7f\u7528\u985e\u6bd4\u6578\u4f4d\u8f49\u63db\u5668(ADC)\u8b80\u53d6\u7d2b\u5916\u7dda\u611f\u6e2c\u5668\u8f38\u51fa\u7684\u985e\u6bd4\u8a0a\u865f\u3002\u9019\u6b21\u6211\u5011\u5c07\u8981\u4f7f\u7528\u985e\u6bd4\u6578\u4f4d\u8f49\u63db\u5668(ADC)\u53bb\u6aa2\u6e2c\u76c6\u683d\u4e2d\u7684\u6fd5\u5ea6\u611f\u6e2c\u5668\uff0c\u53e6\u5916\u52a0\u5165\u6c34\u4f4d\u611f\u6e2c\u5668\u53bb\u6aa2\u6e2c\u84c4\u6c34\u76e4\u4e2d\u7684\u6c34\u4f4d\u3002<\/p>\n\n\n\n<p>\u5982\u679c\u571f\u58e4\u6216\u84c4\u6c34\u76e4\u5448\u73fe\u4e7e\u71e5\u72c0\u614b\uff0c\u76e3\u6e2c\u5668\u6703\u767c\u9001\u8b66\u793a\u8a0a\u606f\u544a\u8a34\u6211\u5011\u61c9\u8a72\u8981\u5e6b\u690d\u7269\u6f86\u6c34\uff0c\u4ee5\u4fdd\u6301\u5176\u5065\u5eb7\u751f\u9577\uff0c\u5982\u4e0b\u5716\u6240\u793a\uff1a<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/lh4.googleusercontent.com\/Nw90DJ1akBHd_74Wvq_f6KCpCpjqvIg1dT2nrNUcPSMc_dexh6mDuoEn5wyJ_2qxosyfxfVYyAZ2CCvCrkhA32Fou1VIW6qPrOWzI988Qpk2Tx7osy7z96tXkUjektO2Q-pSlKtkSppWR5A4W3rxUjA\" alt=\"\u6a39\u8393\u6d3e\u611f\u6e2c\u5668\u5be6\u4f5c(\u56db)\uff1a\u690d\u7269\u76e3\u6e2c\u5668\"\/><\/figure><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e8c\u3001\u6240\u9700\u8a2d\u5099<\/h2>\n\n\n\n<p>1. <a href=\"https:\/\/www.icshop.com.tw\/product_list.php?1915\" target=\"_blank\" rel=\"noreferrer noopener\">\u6fd5\u5ea6\u611f\u6e2c\u5668<\/a> x1<\/p>\n\n\n\n<p>2. <a href=\"https:\/\/www.icshop.com.tw\/product-page.php?24985\" target=\"_blank\" rel=\"noreferrer noopener\">\u6c34\u4f4d\u611f\u6e2c\u5668<\/a> x1<\/p>\n\n\n\n<p>3. <a href=\"https:\/\/www.icshop.com.tw\/product-page.php?10946\" target=\"_blank\" rel=\"noreferrer noopener\">MCP3008 ADC<\/a> x1<\/p>\n\n\n\n<p>4. <a href=\"https:\/\/www.icshop.com.tw\/product_list.php?categories_id=190&amp;header_search=%E9%BA%B5%E5%8C%85%E6%9D%BF\/p_1\" target=\"_blank\" rel=\"noreferrer noopener\">\u9eb5\u5305\u677f<\/a> x1<\/p>\n\n\n\n<p>5. <a href=\"https:\/\/www.icshop.com.tw\/product_list.php?header_search=%E6%9D%9C%E9%82%A6%E7%B7%9A\/p_1\" target=\"_blank\" rel=\"noreferrer noopener\">\u675c\u90a6\u7dda\u6750<\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e09\u3001\u5be6\u4f5c\u6b65\u9a5f<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">1. \u9023\u63a5\u985e\u6bd4\u6578\u4f4d\u8f49\u63db\u5668(ADC)<\/h3>\n\n\n\n<p>\u7531\u65bc\u6211\u5011\u7684\u690d\u7269\u76e3\u6e2c\u5668\u4f7f\u7528\u6fd5\u5ea6\u8207\u6c34\u4f4d\u611f\u6e2c\u5668\uff0c\u5169\u7a2e\u611f\u6e2c\u5668\u90fd\u662f\u8f38\u51fa\u985e\u6bd4\u8a0a\u865f\uff0c\u56e0\u6b64\u9700\u8981\u900f\u904e\u985e\u6bd4\u6578\u4f4d\u8f49\u63db\u5668(ADC, analogue-to-digital converter)\u4f86\u5c07\u6578\u503c\u8f49\u63db\u6210\u6578\u4f4d\u8a0a\u865f\u8b80\u53d6\uff0c\u6211\u5011\u8207\u4e0a\u4e00\u6b21\u4e00\u6a23\u9078\u7528 MCP3008 \u985e\u6bd4\u6578\u4f4d\u8f49\u63db\u5668\uff0c\u5b83\u6709 8 \u500b\u8f38\u5165\u901a\u9053\u3002<\/p>\n\n\n\n<p>\u56e0\u70ba\u985e\u6bd4\u6578\u4f4d\u8f49\u63db\u5668(ADC)\u4f7f\u7528 SPI \u4ecb\u9762\uff0c\u6240\u4ee5\u6211\u5011\u9700\u8981\u900f\u904e Raspberry Pi \u6a39\u8393\u6d3e\u914d\u7f6e\u5de5\u5177\u555f\u7528 SPI\uff0c\u56e0\u6b64\u6211\u5011\u4f7f\u7528\u652f\u63f4\u5b8c\u6574 SPI \u7684 Pythhon 3\uff0c\u6253\u958b\u96fb\u8166\u7d42\u7aef\u6a5f\u8996\u7a97\uff0c\u4e26\u8f38\u5165\u4ee5\u4e0b\u6307\u4ee4\uff1a<\/p>\n\n\n\n<p><span style=\"background-color:#c8c8c8\" class=\"tadv-background-color\">sudo apt-get install python3-spidev<\/span><\/p>\n\n\n\n<p>\u9996\u5148\u95dc\u9589 Raspberry Pi \u6a39\u8393\u6d3e\u7684\u96fb\u6e90\uff0c\u6e96\u5099\u9023\u63a5 MCP3008 \u985e\u6bd4\u6578\u4f4d\u8f49\u63db\u5668\uff0c\u4e5f\u8a31\u5728\u4e0a\u4e00\u7bc7\u7684\u5be6\u4f5c(\u4e09)\u4e2d\uff0c\u4f60\u5df2\u7d93\u8a2d\u5b9a\u5b8c\u6210\u3002\u5c07 MCP3008 \u653e\u7f6e\u5728\u9eb5\u5305\u677f\u4e2d\u9593\uff0c\u9023\u63a5\u5230\u958b\u767c\u677f\u5982\u5716 1 \u6240\u793a\uff1a<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/lh4.googleusercontent.com\/q-P1TwOdTOCQFTAXBo6xC9ORH9Lf7wfhs8VpSe79B21W59KJOmsSubqvV4OrS_g7XTN7uF2jzRcJt0YuPcCRhVLZGgmzqNo1tbHg1Se0ESne1ISIrjLj-TCnbkLi8KOBF3F_WbEndNlGyLjZD9SU0TE\" alt=\"\u6a39\u8393\u6d3e\u611f\u6e2c\u5668\u5be6\u4f5c(\u56db)\uff1a\u690d\u7269\u76e3\u6e2c\u5668\"\/><figcaption>\u57161. \u690d\u7269\u76e3\u6e2c\u5668\u63a5\u7dda\u5716<\/figcaption><\/figure><\/div>\n\n\n\n<p>\u63a5\u7dda\u8acb\u53c3\u7167\u4e0b\u8868\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table aligncenter\"><table><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>Raspberry Pi \u6a39\u8393\u6d3e<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\"><strong>MCP3008<\/strong><\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">IO8<\/td><td class=\"has-text-align-center\" data-align=\"center\">CEo<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">IO10<\/td><td class=\"has-text-align-center\" data-align=\"center\">MOSI<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">IO9<\/td><td class=\"has-text-align-center\" data-align=\"center\">MISO<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">IO11<\/td><td class=\"has-text-align-center\" data-align=\"center\">SCLK<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<blockquote class=\"wp-block-quote\"><p><strong>\u5c0f\u63d0\u9192<\/strong><\/p><cite>\u8acb\u52d9\u5fc5\u78ba\u8a8d\u6240\u6709\u8173\u4f4d\u9023\u63a5\u6b63\u78ba\uff0c\u5426\u5247\u5c07\u6709\u7121\u6cd5\u6b63\u5e38\u904b\u4f5c\u7684\u53ef\u80fd\u6027\uff0c\u66f4\u6709\u53ef\u80fd\u640d\u58de ADC \u985e\u6bd4\u6578\u4f4d\u8f49\u63db\u5668 Raspberry Pi \u6a39\u8393\u6d3e\u3002<\/cite><\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\">2. \u9023\u63a5\u6fd5\u5ea6\u611f\u6e2c\u5668<\/h3>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/lh5.googleusercontent.com\/YIyjwxBq0AKvBYAwM7FXHP73lTYvLH7ig-pzpF4eD-B843SEY3FitOAdccrVyBHLOZtnw90_G5E3FjoSLfiNS9xYqLcT5Ti-1Yy4s1cXx5lJ8USaPzg802bmhP68PEIm5uwCyrRywzXDqtJuwv-GNys\" alt=\"\u6a39\u8393\u6d3e\u611f\u6e2c\u5668\u5be6\u4f5c(\u56db)\uff1a\u690d\u7269\u76e3\u6e2c\u5668\" width=\"300\" height=\"300\"\/><\/figure><\/div>\n\n\n\n<p>\u524d\u9762\u5df2\u7d93\u6b63\u78ba\u5c07\u985e\u6bd4\u6578\u4f4d\u8f49\u63db\u5668(ADC)\u9023\u63a5\u81f3 Raspberry Pi \u6a39\u8393\u6d3e\u4e86\uff0c\u73fe\u5728\u53ef\u4ee5\u8a2d\u7f6e\u6fd5\u5ea6\u611f\u6e2c\u5668\uff0c\u5c07\u6fd5\u5ea6\u611f\u6e2c\u5668\u9023\u63a5\u5230\u958b\u767c\u677f\u5982\u5716 1 \u6240\u793a\uff0c\u63a5\u7dda\u8acb\u53c3\u7167\u4e0b\u8868\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table aligncenter\"><table><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>Raspberry Pi \u6a39\u8393\u6d3e<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\"><strong>\u6fd5\u5ea6\u611f\u6e2c\u5668<\/strong><\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">3.3 V<\/td><td class=\"has-text-align-center\" data-align=\"center\">VCC<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">GND<\/td><td class=\"has-text-align-center\" data-align=\"center\">GND<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u7531\u65bc\u6211\u5011\u8981\u5c07\u6fd5\u5ea6\u611f\u6e2c\u5668\u653e\u7f6e\u5728\u76c6\u683d\u7576\u4e2d\uff0c\u56e0\u6b64\u6211\u5011\u4f7f\u7528\u9577\u7684\u6bcd\/\u6bcd\u96d9\u982d\u675c\u90a6\u7dda\u53bb\u5ef6\u9577&nbsp; Raspberry Pi \u6a39\u8393\u6d3e\u8207\u9eb5\u5305\u95c6\u4e4b\u9593\u7684\u8ddd\u96e2\u3002<\/p>\n\n\n\n<p>\u6700\u5f8c\u6211\u5011\u8981\u5c07\u6fd5\u5ea6\u611f\u6e2c\u5668\u5982\u5716 1 \u6240\u793a\uff0c\u4e26\u4f9d\u7167\u4e0b\u8868\u9023\u63a5\u5230 MCP3008\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table aligncenter\"><table><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>\u6fd5\u5ea6\u611f\u6e2c\u5668<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\"><strong>MCP3008<\/strong><\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">AOUT<\/td><td class=\"has-text-align-center\" data-align=\"center\">0<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<blockquote class=\"wp-block-quote\"><p><strong>\u5c0f\u63d0\u793a<\/strong><\/p><cite>\u6fd5\u5ea6\u611f\u6e2c\u5668\u53ef\u4ee5\u4efb\u610f\u9023\u63a5\u5230 MCP3008 \u7684 8 \u500b\u8f38\u5165\u901a\u9053\uff0c\u672c\u5be6\u4f5c\u4f7f\u7528\u7b2c 0 \u500b\u8f38\u5165\u901a\u9053\u3002<\/cite><\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\">3. \u6fd5\u5ea6\u611f\u6e2c\u5668\u6e2c\u8a66<\/h3>\n\n\n\n<p>\u73fe\u5728\u6211\u5011\u5c31\u4f86\u5efa\u7acb\u4e00\u500b\u7a0b\u5f0f\u300cmoisture_test.py\u300d\u4f86\u6e2c\u8a66\u6fd5\u5ea6\u611f\u6e2c\u5668\u5427\uff01<\/p>\n\n\n\n<div style=\"overflow: auto; height: 200px; background-color: #0000;\"><script src=\"https:\/\/gist.github.com\/icchannel\/20fa290d7091c0b84ec5ff4720837639.js\"><\/script>\n<\/div>\n\n\n\n<p>\u7b2c 1~3 \u884c\uff1a\u6211\u5011\u4f7f\u7528 GPIO Zero \u7a0b\u5f0f\u5eab\uff0c\u65b9\u4fbf\u4f7f\u7528 MCP3008 \u985e\u5225\uff0c\u4e26\u6307\u5b9a moisture \u70ba MCP3008(0) \u53bb\u8b80\u53d6\u611f\u6e2c\u5668\u7684\u985e\u6bd4\u8f38\u51fa\u8a0a\u865f\u3002<\/p>\n\n\n\n<p>\u7b2c 5~6 \u884c\uff1a\u8a2d\u5b9a\u4e00\u500b\u8ff4\u5708 while True: \uff0c\u5c07\u611f\u6e2c\u5668\u8f38\u51fa\u7684\u503c(\u7bc4\u570d\u70ba 0~1)\u4e58\u4e0a 3300 \u6beb\u4f0f(mV)\u6700\u5927\u96fb\u58d3\u4ee5\u7372\u5f97\u6e96\u78ba\u7684\u6578\u503c\u3002\u5728 print \u986f\u793a\u53c3\u6578\u7684\u683c\u5f0f\u8a2d\u5b9a\u70ba %-3.2f\uff0c\u81f3\u5c11\u4e09\u4f4d\u6578\u5b57\uff0c\u5305\u62ec\u5169\u4f4d\u5c0f\u6578\uff0c\u7576\u7136\u4e5f\u53ef\u4f9d\u7167\u81ea\u5df1\u7684\u559c\u597d\u8a2d\u5b9a\uff0c\u6700\u5f8c\u52a0\u5165 end = &#8220;\\r&#8221;\uff0c\u8b93\u6bcf\u6b21\u986f\u793a\u6587\u5b57\u90fd\u6703\u51fa\u73fe\u5728\u540c\u4e00\u884c\u3002<\/p>\n\n\n\n<p>\u5982\u679c\u6fd5\u5ea6\u611f\u6e2c\u5668\u5c1a\u672a\u88ab\u653e\u7f6e\u5728\u4efb\u4f55\u7269\u54c1\u4e2d\uff0c\u90a3\u9ebc\u5b83\u8b80\u53d6\u5230\u7684\u6578\u503c\u6703\u975e\u5e38\u7684\u4f4e\uff08\u672c\u5be6\u4f5c\u70ba 1.61 mV\uff09\u3002\u73fe\u5728\u7528\u624b\u63e1\u4f4f\u611f\u6e2c\u5668\uff0c\u5c07\u6703\u770b\u5230\u6578\u503c\u6703\u4e0a\u5347\u5230\u7d04 200 mV\uff0c\u751a\u81f3\u66f4\u9ad8(\u5c31\u770b\u5404\u4f4d\u7684\u624b\u5920\u4e0d\u5920\u6f6e\u6fd5\u56c9\uff5e\uff09\u3002<\/p>\n\n\n\n<p>\u6fd5\u5ea6\u611f\u6e2c\u5668\u900f\u904e\u5169\u500b\u91d1\u5c6c\u63d2\u8173\u4f5c\u70ba\u5c0e\u9ad4\uff0c\u8b93\u96fb\u6d41\u4e92\u76f8\u6d41\u901a\uff0c\u7576\u96fb\u963b\u5c3c\u8d8a\u5927\uff0c\u5c0e\u96fb\u6027\u5c31\u8d8a\u9ad8\uff0c\u56e0\u6b64\u6211\u5011\u53ef\u4ee5\u5229\u7528\u6b64\u7279\u6027\u5c07\u611f\u6e2c\u5668\u653e\u7f6e\u65bc\u690d\u7269\u76c6\u683d\u7684\u571f\u58e4\u4e2d\uff0c\u6aa2\u6e2c\u571f\u58e4\u7684\u6fd5\u5ea6\u3002<\/p>\n\n\n\n<p>\u5982\u679c\u5c07\u624b\u5f04\u6fd5\u5f8c\u518d\u63e1\u4f4f\u611f\u6e2c\u5668\uff0c\u90a3\u9ebc\u61c9\u8a72\u6703\u770b\u5230\u8b80\u53d6\u5230\u7684\u6578\u503c\u6703\u4e0a\u5347\u8d85\u904e 800 mV\u3002\u4f46\u662f\u5207\u8a18\u4f7f\u7528\u6642\u4e0d\u8981\u5f04\u6fd5\u4efb\u4f55\u96fb\u5b50\u7522\u54c1\u5594\uff01<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">4. \u5c07\u6fd5\u5ea6\u611f\u6e2c\u5668\u653e\u5165\u76c6\u683d\u4e2d<\/h3>\n\n\n\n<p>\u73fe\u5728\u65e2\u7136\u6211\u5011\u5df2\u7d93\u4e86\u89e3\u6fd5\u5ea6\u611f\u6e2c\u5668\u7684\u7279\u6027\uff0c\u4e26\u80fd\u5920\u6b63\u5e38\u904b\u4f5c\u4e86\uff0c\u90a3\u9ebc\u5c31\u53ef\u4ee5\u5c07\u611f\u6e2c\u5668\u7f6e\u5165\u690d\u7269\u7684\u76c6\u683d\u4e2d\u56c9\uff01<\/p>\n\n\n\n<p>\u6211\u5011\u5c07\u611f\u6e2c\u5668\u653e\u5165\u4e7e\u71e5\u7684\u571f\u58e4\u4e2d\u4f5c\u70ba\u53c3\u8003\u503c\uff0c\u4f9d\u64da\u6b64\u6578\u503c\u6211\u5011\u53ef\u4ee5\u8a2d\u5b9a\u4e00\u500b\u7576\u571f\u58e4\u592a\u4e7e\u71e5\u6642\uff0c\u6703\u81ea\u52d5\u767c\u9001\u8b66\u793a\u901a\u77e5\u6211\u5011\u8a72\u70ba\u76c6\u683d\u6f86\u6c34\u3002<\/p>\n\n\n\n<p>\u73fe\u5728\u518d\u6e2c\u8a66\u4e00\u6b21\u7a0b\u5f0f\u300cmoisture_test.py\u300d\uff0c\u7576\u571f\u58e4\u4e7e\u71e5\u6642\u611f\u6e2c\u5668\u6703\u8b80\u53d6\u5230\u4f4e\u65bc 100 mV \u7684\u6578\u503c\uff1b\u4f46\u662f\u7576\u6211\u5011\u70ba\u76c6\u683d\u6f86\u6c34\u6642\uff0c\u5c31\u6703\u4e0a\u5347\u8d85\u904e 1400 mV\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">5. \u6c34\u4f4d\u611f\u6e2c\u5668\u6e2c\u8a66<\/h3>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/lh4.googleusercontent.com\/WZIpyj8v-Rt94oXpO67eCfGRQA4DfIw0gt3UvnHLwFUb7mmy3UZzPaT31jSR5p--OGbgs5zrwT7PANCDuvWxx0nOC46_3fcKxmmVrOSRONOPE8zr69MTrZVICCStRWjS6rhRTqkHRgAbi1-G5rg6WN4\" alt=\"\u6a39\u8393\u6d3e\u611f\u6e2c\u5668\u5be6\u4f5c(\u56db)\uff1a\u690d\u7269\u76e3\u6e2c\u5668\" width=\"450\" height=\"450\"\/><\/figure><\/div>\n\n\n\n<p>\u5982\u679c\u4f60\u7684\u76c6\u683d\u653e\u7f6e\u5728\u4e00\u500b\u84c4\u6c34\u76e4\u4e2d\uff0c\u90a3\u9ebc\u5c31\u53ef\u4ee5\u589e\u52a0\u4e00\u500b\u6c34\u4f4d\u611f\u6e2c\u5668\u4f86\u6aa2\u6e2c\u6c34\u4f4d\uff0c\u9019\u662f\u4e00\u500b\u81ea\u7531\u9078\u64c7\u7684\u6b65\u9a5f\uff0c\u4e5f\u8a31\u770b\u8d77\u4f86\u6709\u9ede\u591a\u6b64\u4e00\u8209\uff0c\u56e0\u70ba\u5176\u5be6\u6709\u6fd5\u5ea6\u611f\u6e2c\u5668\u5c31\u5f88\u8db3\u5920\u4e86\u3002<\/p>\n\n\n\n<p>\u6c34\u4f4d\u611f\u6e2c\u5668\u900f\u904e\u91d1\u5c6c\u689d\u70ba\u5c0e\u9ad4\uff0c\u7576\u6c34\u4f4d\u8d8a\u9ad8\uff0c\u90a3\u9ebc\u8f38\u51fa\u7684\u96fb\u6d41\u5c31\u6703\u8d8a\u5927\uff0c\u96fb\u6d41\u8f38\u51fa\u7bc4\u570d\u503c\uff1a0 V ~ 1.88 V\uff0c\u5c0d\u61c9\u6c34\u4f4d\uff1a0 cm ~ 4.8 cm\u3002\u56e0\u6b64\u6211\u5011\u53ef\u4ee5\u900f\u904e\u6b64\u7279\u6027\u8a2d\u5b9a\u7576\u6c34\u4f4d\u63a5\u8fd1 0 cm \u6642\u767c\u9001\u8b66\u793a\u3002<\/p>\n\n\n\n<p>\u73fe\u5728\u5c31\u5c07\u6c34\u4f4d\u611f\u6e2c\u5668\u5982\u5716 1 \u6240\u793a\uff0c\u4e26\u4f9d\u7167\u4e0b\u8868\u9023\u63a5\u5230 MCP3008\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table aligncenter\"><table><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>\u6c34\u4f4d\u611f\u6e2c\u5668<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\"><strong>MCP3008<\/strong><\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">AOUT<\/td><td class=\"has-text-align-center\" data-align=\"center\">1<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u63a5\u7dda\u5b8c\u6210\u5f8c\u5c31\u53ef\u4ee5\u6e2c\u8a66\u300cliquid_test.py\u300d\u7a0b\u5f0f\uff0c\u4e26\u5c07\u611f\u6e2c\u5668\u6c89\u6d78\u5728\u4e0d\u540c\u7684\u6c34\u4f4d\u4e2d\u89c0\u5bdf\u96fb\u6d41\u7684\u8b8a\u5316\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote\"><p>\u5c0f\u63d0\u9192<\/p><cite>\u4f7f\u7528\u6642\u4e0d\u8981\u5f04\u6fd5\u4efb\u4f55\u96fb\u5b50\u7522\u54c1\u6216\u662f Raspberry Pi \u6a39\u8393\u6d3e\u5594\uff01<\/cite><\/blockquote>\n\n\n\n<div style=\"overflow: auto; height: 200px; background-color: #0000;\"><script src=\"https:\/\/gist.github.com\/iCShop-Sophie\/6079ebbb2618d7114a845ff4a99b2436.js\"><\/script>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\">6. \u8a2d\u5b9a\u8b66\u793a\u901a\u77e5<\/h3>\n\n\n\n<p>\u6211\u5011\u8981\u8a2d\u8a08\u4e00\u500b\u7576\u5169\u500b\u611f\u6e2c\u5668\u5075\u6e2c\u5230\u6fd5\u5ea6\u6216\u6c34\u4f4d\u5230\u9054\u6211\u5011\u8a2d\u5b9a\u7684\u6578\u503c\u6642\uff0c\u6703\u81ea\u52d5\u89f8\u767c\u50b3\u9001\u8b66\u793a\u901a\u77e5\u3002<\/p>\n\n\n\n<p>\u5728\u4e4b\u524d\u7684\u5be6\u4f5c\u6587\u7ae0(\u4e00)\u3001(\u4e8c)\u4e2d\uff0c\u7576\u8b66\u5831\u88ab\u89f8\u767c\u6642\uff0c\u6211\u5011\u6703\u807d\u5230\u8702\u9cf4\u5668\u7684\u8b66\u5831\u8072\u3002\u9019\u6b21\u6211\u5011\u8981\u66f4\u9032\u4e00\u6b65\u8a2d\u8a08\u4e00\u500b\u53ef\u4ee5\u767c\u9001\u8b66\u793a\u8a0a\u606f\u5230\u6211\u5011\u7684\u624b\u6a5f\u6216\u96fb\u8166\u7684\u7a0b\u5f0f\u3002<\/p>\n\n\n\n<p>\u70ba\u4e86\u9054\u5230\u9019\u500b\u76ee\u7684\uff0c\u6211\u5011\u8981\u4f7f\u7528\u63d0\u4f9b\u514d\u8cbb\u670d\u52d9\u5c64\u7684 <a href=\"https:\/\/www.pushbullet.com\/\">Pushbullet<\/a>\u3002\u9996\u5148\uff0c\u8981\u5148\u5230 <a href=\"https:\/\/www.pushbullet.com\/\">Pushbullet<\/a> \u7db2\u7ad9\u4e0a\u8a3b\u518a\u4e00\u500b\u5e33\u865f\uff0c\u4e26\u4e14\u53d6\u5f97\u9ede\u64ca\u300cCreate Access Token\u300d\uff0c\u5c07\u6703\u7372\u53d6\u5230\u4e00\u4e32 API\uff0c\u8a18\u5f97\u628a\u5b83\u8907\u88fd\u8d77\u4f86\uff0c\u5f85\u6703\u6703\u9700\u8981\u5c07\u5b83\u52a0\u5165\u7a0b\u5f0f\u4e2d\u5594\uff01<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter is-resized\"><img decoding=\"async\" src=\"https:\/\/lh6.googleusercontent.com\/XuP9PNxbrNc-EezHuj6I5gCw5Yd1r9v7Y3-FO4bLa2QddOGEBbeI16PZVikCEuZmiPjQqesRXS9rBVUjAilVJB2TC3YbQuQ-3s-mbTjNYyTajVag78-i7i7e-xmaftamb05ig6pPUaForKtttcvUexQ\" alt=\"\" width=\"-45\" height=\"-16\"\/><\/figure><\/div>\n\n\n\n<p>\u4f7f\u7528 Pushbullet \u6211\u5011\u9700\u8981\u5b89\u88dd Python 3 \u7a0b\u5f0f\u5eab\uff0c\u7576\u4f60\u7684 Raspberry Pi \u6a39\u8393\u6d3e\u5b89\u88dd\u5b8c\u6210\u5f8c\uff0c\u8acb\u958b\u555f\u7d42\u7aef\u6a5f\u8996\u7a97\u8f38\u5165\u6307\u4ee4\uff1a<\/p>\n\n\n\n<p><span style=\"background-color:#c8c8c8\" class=\"tadv-background-color\">sudo pip3 install pushbullet.py<\/span><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">7. \u64b0\u5beb\u690d\u7269\u76e3\u6e2c\u5668\u7a0b\u5f0f<\/h3>\n\n\n\n<p>\u73fe\u5728\u6211\u5011\u5c31\u4f86\u5efa\u7acb\u6211\u5011\u6700\u5f8c\u7684\u7a0b\u5f0f\u300cplant_monitor.py\u300d\u4f86\u6e2c\u8a66\u690d\u7269\u76e3\u6e2c\u5668\u5427\uff01<\/p>\n\n\n\n<div style=\"overflow: auto; height: 500px; background-color: #0000;\"><script src=\"https:\/\/gist.github.com\/iCShop-Sophie\/520b9cd78cc2c0a5bcc93c3ab9be2ad1.js\"><\/script>\n<\/div>\n\n\n\n<p>\u7b2c 5 \u884c\uff1a\u6211\u5011\u4f7f\u7528 pushbullet \u7a0b\u5f0f\u5eab\uff0c\u4e26\u6388\u6b0a pb \u8b80\u53d6\u6211\u5011\u7684 Pushbullet \u5e33\u865f\uff08\u8acb\u5c07\u524d\u9762\u8907\u88fd\u7684 API \u586b\u5165\u300c Your Access Token\u300d\u4e2d\uff09\u3002<\/p>\n\n\n\n<p>\u7b2c 6 \u884c\uff1a\u70ba\u5df2\u7d93\u9023\u63a5\u7684 Pushbullet \uff0c\u4e26\u4e14\u8981\u63a5\u6536\u901a\u77e5\u7684\u88dd\u7f6e\u8a2d\u5b9a\u4e00\u500b\u540d\u7a31\uff0c\u88dd\u7f6e\u540d\u7a31\u53ef\u4ee5\u5728 Pushbullet \u7db2\u7ad9\u4e0a\u627e\u5230\uff0c\u6216\u662f\u4f7f\u7528 print(pb.devices) \u884c\uff0c\u5982\u7b2c 5 \u884c\u6240\u8a2d\u5b9a\u7684\u3002<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/lh6.googleusercontent.com\/WisyQIslMe17wv1UCaxjZMUzfM6VeQ8RlA-GumgJSgWR08bTZaCgop_weKDHbFxYgBXEHIpbLwNaxbMNayk_rQY0yLBhGetTtQwvmUeEelZXWVSbbJzxUML-FfDGAiYj4xIB8jF2bKPBvRFidfj-K6E\" alt=\"\"\/><\/figure><\/div>\n\n\n\n<p>\u7b2c 12 ~ 15 \u884c\uff1a\u8a2d\u5b9a alert \u8b66\u793a\u901a\u77e5\uff0c\u5176\u4e2d device \u53ef\u4ee5\u8a2d\u5b9a\u591a\u500b\u60f3\u8981\u63a5\u6536\u901a\u77e5\u7684\u88dd\u7f6e\u3002\u4e26\u4e14\u767c\u9001\u300cPlant monitor alert:\u300d\uff0c\u52a0\u4e0a\u4f9d\u64da\u7b2c 17 ~ 27 \u884c while True: \u8ff4\u5708\u689d\u4ef6\u986f\u793a\u7684 message \u6587\u5b57\u4e32\u3002\u6700\u5f8c\u52a0\u5165 60 \u79d2\u7684 sleep\uff08\u7576\u7136\u4e5f\u53ef\u4ee5\u66f4\u9577\uff09\uff0c\u9019\u6a23\u624d\u4e0d\u6703\u4e00\u6b21\u767c\u9001\u591a\u500b\u901a\u77e5\u3002<\/p>\n\n\n\n<p>\u7b2c 17 ~ 27 \u884c\uff1a\u5728 while True: \u8ff4\u5708\u4e2d\uff0c\u6211\u5011\u5c07\u6fd5\u5ea6\u8207\u6c34\u4f4d\uff08\u4ee5 mV \u70ba\u55ae\u4f4d\uff09\u5206\u5225\u8a2d\u7f6e\u95be\u503c 500 \u548c 1000\uff08\u53ef\u6839\u64da\u81ea\u5df1\u559c\u597d\u66f4\u6539\uff09\uff0c\u7576\u611f\u6e2c\u5668\u6aa2\u6e2c\u5230\u4f4e\u65bc\u8a2d\u5b9a\u7684\u95be\u503c\u6642\uff0c\u4fbf\u6703\u89f8\u767c\u76f8\u95dc\u8b66\u793a\u8a0a\u606f\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u56db\u3001\u5c0f\u7d50<\/h2>\n\n\n\n<p>\u6839\u64da\u4ee5\u4e0a\u7684\u5be6\u4f5c\u6b65\u9a5f\uff0c\u6211\u5011\u5b8c\u6210\u4e86\u690d\u7269\u76e3\u6e2c\u5668\uff0c\u5982\u6b64\u4e00\u4f86\uff0c\u7576\u690d\u7269\u9700\u8981\u6f86\u6c34\u6642\uff0c\u5c31\u6703\u6536\u5230\u8b66\u793a\u901a\u77e5\u56c9\uff01<\/p>\n\n\n\n<p>\u5982\u679c\u60f3\u8981\u5e6b\u690d\u7269\u76e3\u6e2c\u5668\u5347\u7d1a\u7684\u8a71\uff0c\u53ef\u4ee5\u5efa\u7acb\u4e00\u500b\u7576\u571f\u58e4\u592a\u4e7e\u71e5\u6642\u6703\u81ea\u52d5\u6f86\u6c34\u7684\u7cfb\u7d71\u3002\u81ea\u52d5\u6f86\u6c34\u7cfb\u7d71\u53ef\u4ee5\u900f\u904e\u96fb\u78c1\u95a5\u4f86\u63a7\u5236\u4f9b\u6c34\u88dd\u7f6e\u7684\u958b\u95dc\u6216\u6c34\u6cf5\uff0c\u90a3\u9ebc\u5c31\u9700\u8981\u7e7c\u96fb\u5668\u64f4\u5c55\u677f\u4f86\u63a7\u5236\u7e7c\u96fb\u78c1\u95a5\u6216\u6c34\u6cf5\uff0c\u9019\u6a23\u624d\u80fd\u8b93 Raspberry Pi \u6a39\u8393\u6d3e\u8f38\u51fa\u66f4\u9ad8\u7684\u96fb\u58d3\u548c\u96fb\u6d41\u5594\uff01<\/p>\n\n\n\n<p>\u9019\u6b21\u6a39\u8393\u6d3e\u611f\u6e2c\u5668\u5be6\u4f5c\u5c31\u5206\u4eab\u5230\u9019\u908a\u5566\uff01\u9084\u60f3\u770b\u6211\u5011\u5206\u4eab\u4ec0\u9ebc\u6a23\u7684\u5167\u5bb9\u5462\uff1f\u6b61\u8fce\u5927\u5bb6\u586b\u5beb\u554f\u5377\u6216\u8005\u5beb\u4fe1\u5efa\u8b70\u6211\u5011\u5537\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u300c\u6a39\u8393\u6d3e\u611f\u6e2c\u5668\u5be6\u4f5c\u300d\u7cfb\u5217\u5be6\u4f5c\u6211\u5011\u88fd\u4f5c\u4e86\u706b\u7130\u8207\u74e6\u65af\u6d29\u6f0f\u8b66\u5831\u7cfb\u7d71\u3001\u5165\u4fb5\u8005\u8b66\u5831\u5668\uff0c\u4ee5\u53ca\u7c21\u6613\u6c23\u8c61\u7ad9\uff0c\u9019\u6b21\u5c31\u8981\u5e36\u5927\u5bb6\u904b\u7528 Raspberry Pi \u6a39\u8393\u6d3e\u3001\u571f\u58e4\u6fd5\u5ea6\u548c\u6c34\u4f4d\u5075\u6e2c\u611f\u6e2c\u5668\uff0c\u4e00\u8d77\u88fd\u4f5c\u4e00\u500b\u690d\u7269\u76e3\u6e2c\u5668\uff0c\u7576\u690d\u683d\u7f3a\u6c34\u6642\u5c31\u6703\u81ea\u52d5\u901a\u77e5\u9700\u6f86\u6c34\u7684\u8a0a\u606f\uff0c<\/p>\n","protected":false},"author":1,"featured_media":17692,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[112,238],"tags":[],"table_tags":[],"_links":{"self":[{"href":"https:\/\/www.circuspi.com\/index.php\/wp-json\/wp\/v2\/posts\/17371"}],"collection":[{"href":"https:\/\/www.circuspi.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.circuspi.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.circuspi.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.circuspi.com\/index.php\/wp-json\/wp\/v2\/comments?post=17371"}],"version-history":[{"count":13,"href":"https:\/\/www.circuspi.com\/index.php\/wp-json\/wp\/v2\/posts\/17371\/revisions"}],"predecessor-version":[{"id":17694,"href":"https:\/\/www.circuspi.com\/index.php\/wp-json\/wp\/v2\/posts\/17371\/revisions\/17694"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.circuspi.com\/index.php\/wp-json\/wp\/v2\/media\/17692"}],"wp:attachment":[{"href":"https:\/\/www.circuspi.com\/index.php\/wp-json\/wp\/v2\/media?parent=17371"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.circuspi.com\/index.php\/wp-json\/wp\/v2\/categories?post=17371"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.circuspi.com\/index.php\/wp-json\/wp\/v2\/tags?post=17371"},{"taxonomy":"table_tags","embeddable":true,"href":"https:\/\/www.circuspi.com\/index.php\/wp-json\/wp\/v2\/table_tags?post=17371"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}