{"id":39,"date":"2021-06-22T23:35:17","date_gmt":"2021-06-22T15:35:17","guid":{"rendered":"http:\/\/www.espruino.cn\/?p=39"},"modified":"2021-07-10T22:36:23","modified_gmt":"2021-07-10T14:36:23","slug":"dsm501a-aqi-device","status":"publish","type":"post","link":"http:\/\/www.espruino.cn\/?p=39","title":{"rendered":"\u57fa\u4e8eDSM501A\u7684\u7a7a\u6c14\u8d28\u91cf\u6307\u6570(AQI)\u8ba1\u7b97\u88c5\u7f6e"},"content":{"rendered":"\n
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\u57fa\u4e8eDSM501A\u7684\u7a7a\u6c14\u8d28\u91cf\u6307\u6570(AQI)\u8ba1\u7b97\u88c5\u7f6e
\u4f5c\u8005\uff1aEspruino\u4e2d\u6587\u793e\u533a lawrencedon

\u4f7f\u7528\u7684\u6a21\u5757\uff1aDSM501A
\u63a5\u7ebf\u65b9\u6cd5\uff1a
DSM501A     Espruino
pin1 ——– \u4e0d\u7528\u63a5
pin2 ——– A1
pin3 ——– Bat
pin4 ——– A0
pin5 ——– GND
\u8fd9\u91cc\u7528A0\uff0cA1\u5176\u5b9e\u662f\u6709\u70b9\u4e0d\u59a5\u7684\uff0c\u56e0\u4e3a\u8fd9\u4e24\u4e2a\u9488\u811a\u662f3.3v tolerant\uff0c\u800cDSM501\u7684\u8f93\u51fa\u9ad8\u7535\u5e73\u53ef\u4ee5\u8fbe\u52304.7v\u3002
\u53ef\u4ee5\u4f7f\u75285v tolerant\u7684\u9488\u811a\u6765\u505a\u8be5\u5b9e\u9a8c\u3002\u5728\u4e0b\u9762\u94fe\u63a5\u91cc\u7684PINOUT\u56fe\u4e2d\u6ca1\u6709\u6807\u6ce83.3v\u7684\u9488\u811a\u90fd\u662f5v tolerant\u7684\u3002
http:\/\/www.espruino.com\/ReferenceESPRUINOBOARD<\/a>
\u8ba1\u7b97\u9897\u7c92\u6d53\u5ea6\u548cAQI\u7684\u516c\u5f0f\u6765\u81eahttps:\/\/github.com\/alexjx\/AqiMon<\/a><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
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\/\/\u57fa\u4e8eDSM501A\u7684\u7a7a\u6c14\u8d28\u91cf\u6307\u6570(AQI)\u8ba1\u7b97\u88c5\u7f6e\n\/\/\u4f7f\u7528\u7684\u6a21\u5757\uff1aDSM501A\n\/\/\u63a5\u7ebf\u65b9\u6cd5\uff1a\n\/\/ DSM501A       Espruino\n\/\/ pin1 -------- \u4e0d\u7528\u63a5\n\/\/ pin2 -------- A1\n\/\/ pin3 -------- Bat\n\/\/ pin4 -------- A0\n\/\/ pin5 -------- GND\n\/\/\u8ba1\u7b97\u9897\u7c92\u6d53\u5ea6\u548cAQI\u7684\u516c\u5f0f\u6765\u81eahttps:\/\/github.com\/alexjx\/AqiMon\n\/\/\u4f5c\u8005\uff1aEspruino\u4e2d\u6587\u793e\u533a lawrencedon\n\nvar pm10 = 0;\nvar pm25 = 0;\nvar pm10_weight = 0;\nvar pm25_weight = 0;\nvar aqi = 0;\nvar P25Weight = 0;\nsetWatch(function(e){\n  var lowtime0=(e.time-e.lastTime)*1000;\n  if(lowtime0>=10 && lowtime0<=90)\n  {\n    \/\/console.log(\"pm10: \" + lowtime0);\n    pm10+=lowtime0;\n  }\n},A1,{repeat:true,edge:\"rising\"});\nsetWatch(function(e){\n  var lowtime1=(e.time-e.lastTime)*1000;\n  if(lowtime1>=10 && lowtime1<=90)\n  {\n    \/\/console.log(\"pm25: \" + lowtime1);\n    pm25+=lowtime1;\n  }\n},A0,{repeat:true,edge:\"rising\"});\nsetInterval(function(e){\n  pm10_weight = 0.30473 * Math.pow((pm10\/30000)*100, 3) - 2.63943 * Math.pow((pm10\/30000)*100, 2) + 102.60291 * (pm10\/30000)*100 - 3.49616;\n\n  pm25_weight = 0.30473 * Math.pow((pm25\/30000)*100, 3) - 2.63943 * Math.pow((pm25\/30000)*100, 2) + 102.60291 * (pm25\/30000)*100 - 3.49616;\n\n    P25Weight = pm10_weight - pm25_weight;\n\n   if (P25Weight>= 0 && P25Weight <= 15.4) {\n  aqi = 0 +(50.0 \/ 15.5 * P25Weight);\n} else if (P25Weight > 15.5 && P25Weight <= 40.5) {\n  aqi = 50 + (50.0 \/ 25.0 * (P25Weight - 15.5));\n} else if (P25Weight > 40.5 && P25Weight <= 65.5) {\n  aqi = 100 + (50.0 \/ 25.0 * (P25Weight - 40.5));\n} else if (P25Weight > 65.5 && P25Weight <= 150.5) {\n  aqi = 150 + (50.0 \/ 85.0 * (P25Weight - 65.5));\n} else if (P25Weight > 150.5 && P25Weight <= 250.5) {\n  aqi = 200 + (100.0 \/ 100.0 * (P25Weight - 150.5));\n} else if (P25Weight > 250.5 && P25Weight <= 350.5) {\n  aqi = 300 + (100.0 \/ 100.0 * (P25Weight - 250.5));\n} else if (P25Weight > 350.5 && P25Weight <= 500.0) {\n  aqi = 400 + (100.0 \/ 150.0 * (P25Weight - 350.5));\n} else if (P25Weight > 500.0) {\n  aqi = 500 + (500.0 \/ 500.0 * (P25Weight - 500.0));\n} else {\n  aqi = 0;\n}\n  console.log(\"__________AQI:\" + aqi + \"__________\");\n    pm10=0;pm25=0;\n},30000);<\/code><\/pre>\n<\/div><\/div>\n<\/div>\n<\/div>\n<\/div><\/div>\n<\/div>\n<\/div>\n\n\n\n
<\/p>\n","protected":false},"excerpt":{"rendered":"
\u57fa\u4e8eDSM501A\u7684\u7a7a\u6c14\u8d28\u91cf\u6307\u6570(AQI)\u8ba1\u7b97\u88c5\u7f6e\u4f5c\u8005\uff1aEspruino\u4e2d\u6587\u793e\u533a lawrencedon \u4f7f\u7528 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[5],"tags":[],"_links":{"self":[{"href":"http:\/\/www.espruino.cn\/index.php?rest_route=\/wp\/v2\/posts\/39"}],"collection":[{"href":"http:\/\/www.espruino.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.espruino.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.espruino.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.espruino.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=39"}],"version-history":[{"count":5,"href":"http:\/\/www.espruino.cn\/index.php?rest_route=\/wp\/v2\/posts\/39\/revisions"}],"predecessor-version":[{"id":127,"href":"http:\/\/www.espruino.cn\/index.php?rest_route=\/wp\/v2\/posts\/39\/revisions\/127"}],"wp:attachment":[{"href":"http:\/\/www.espruino.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=39"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.espruino.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=39"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.espruino.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=39"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}