{"id":884,"date":"2016-05-17T14:31:28","date_gmt":"2016-05-17T06:31:28","guid":{"rendered":"https:\/\/www.webteach.tw\/?p=884"},"modified":"2016-05-17T14:31:28","modified_gmt":"2016-05-17T06:31:28","slug":"raspberrypi-%e6%ba%ab%e6%ba%bc%e5%ba%a6%e6%84%9f%e6%87%89%e5%99%a8_dht11_dht22","status":"publish","type":"post","link":"https:\/\/www.webteach.tw\/?p=884","title":{"rendered":"[ Raspberrypi ] \u2013 \u6eab\u6ebc\u5ea6\u611f\u61c9\u5668_DHT11_DHT22"},"content":{"rendered":"<p>\t\t\t\tsudo apt-get update<br \/>\n\/\/\u66f4\u65b0\u5b89\u88dd\u5957\u4ef6\u6e05\u55ae<br \/>\nsudo apt-get install build-essential python-dev<br \/>\n\/\/\u5b89\u88dd \u7de8\u8b6f\u5668<br \/>\ngit clone https:\/\/github.com\/adafruit\/Adafruit_Python_DHT.git<br \/>\n\/\/\u5f9egit\u8907\u88fd\u8cc7\u6599<br \/>\ncd Adafruit_Python_DHT<br \/>\n\u5c07\u76ee\u524d\u4f4d\u7f6e\u79fb\u5230 Adafruit_Python_DHT \u8cc7\u6599\u593e<br \/>\npython setup.py install<br \/>\n\/\/\u57f7\u884c\u5b89\u88dd<br \/>\ncd examples<br \/>\n\/\/\u79fb\u5230\u7bc4\u4f8b\u6a94<br \/>\nnano simpletest.py<br \/>\n\/\/\u7de8\u8f2f\u7bc4\u4f8b\u6a94<br \/>\n[javascript]<br \/>\nimport Adafruit_DHT<br \/>\n# Sensor should be set to Adafruit_DHT.DHT11,<br \/>\n# Adafruit_DHT.DHT22, or Adafruit_DHT.AM2302.<br \/>\nsensor = Adafruit_DHT.DHT22<br \/>\n#\u9019\u908a\u53ef\u4ee5\u9078\u64c7\u4f60\u7684\u611f\u61c9\u5668\u662f\u90a3\u4e00\u7a2e<br \/>\n# Example using a Beaglebone Black with DHT sensor<br \/>\n# connected to pin P8_11.<br \/>\npin = &#8216;P8_11&#8217;<br \/>\n#\u9078\u64c7\u63a5\u6536\u8cc7\u6599\u7684\u8173\u4f4d<br \/>\n# Example using a Raspberry Pi with DHT sensor<br \/>\n# connected to GPIO23.<br \/>\n#pin = 23<br \/>\n# Try to grab a sensor reading.  Use the read_retry method which will retry up<br \/>\n# to 15 times to get a sensor reading (waiting 2 seconds between each retry).<br \/>\nhumidity, temperature = Adafruit_DHT.read_retry(sensor, pin)<br \/>\n#\u53d6\u5f97\u6eab\u6ebc\u5ea6<br \/>\n# Note that sometimes you won&#8217;t get a reading and<br \/>\n# the results will be null (because Linux can&#8217;t<br \/>\n# guarantee the timing of calls to read the sensor).<br \/>\n# If this happens try again!<br \/>\nif humidity is not None and temperature is not None:<br \/>\n    print(&#8216;Temp={0:0.1f}*C  Humidity={1:0.1f}%&#8217;.format(temperature, humidity))<br \/>\n#\u986f\u793a\u6eab\u6ebc\u5ea6\u8cc7\u6599<br \/>\nelse:<br \/>\n    print(&#8216;Failed to get reading. Try again!&#8217;)<br \/>\n#\u7121\u6cd5\u53d6\u5f97\u611f\u61c9\u5668\u8cc7\u6599 \u6709\u53ef\u80fd\u662f\u8173\u4f4d\u63d2\u932f \u6216\u662f\u4f9b\u96fb\u4e0d\u8db3<br \/>\n[\/javascript]<br \/>\n\u6a39\u8393\u6d3e3 \u8173\u4f4d\u53c3\u8003\u5716 <a href=\"https:\/\/www.element14.com\/community\/servlet\/JiveServlet\/previewBody\/73950-102-10-339300\/pi3_gpio.png\" target=\"_blank\" rel=\"noopener noreferrer\">https:\/\/www.element14.com\/community\/servlet\/JiveServlet\/previewBody\/73950-102-10-339300\/pi3_gpio.png<\/a><br \/>\npython simpletest.py<br \/>\n\/\/\u57f7\u884c\u7bc4\u4f8b\u6a94<br \/>\nTemp=25.0*C  Humidity=21.0%<br \/>\n\/\/\u7d50\u679c\u986f\u793a\t\t<\/p>\n","protected":false},"excerpt":{"rendered":"<p>sudo apt-get update \/\/\u66f4\u65b0\u5b89&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[209,210,1007],"class_list":["post-884","post","type-post","status-publish","format-standard","hentry","category-6","tag-dht11","tag-dht22","tag-1007"],"_links":{"self":[{"href":"https:\/\/www.webteach.tw\/index.php?rest_route=\/wp\/v2\/posts\/884","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.webteach.tw\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.webteach.tw\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.webteach.tw\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.webteach.tw\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=884"}],"version-history":[{"count":0,"href":"https:\/\/www.webteach.tw\/index.php?rest_route=\/wp\/v2\/posts\/884\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.webteach.tw\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=884"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.webteach.tw\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=884"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.webteach.tw\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=884"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}