{"id":2596,"date":"2013-04-28T23:10:48","date_gmt":"2013-04-29T04:10:48","guid":{"rendered":"http:\/\/www.sector67.org\/blog\/?p=2596"},"modified":"2013-08-28T23:14:45","modified_gmt":"2013-08-29T04:14:45","slug":"whirlpool-turbidity-sensor","status":"publish","type":"post","link":"https:\/\/www.sector67.org\/blog\/2013\/whirlpool-turbidity-sensor\/","title":{"rendered":"Whirlpool Turbidity Sensor"},"content":{"rendered":"<p>In the course of one of our Makership Projects, we needed a water turbidity sensor. \u00a0Of course a new sensor was prohibitively expensive, but eBay pointed us towards inexpensive dishwasher sensors. \u00a0We ended up purchasing a Whirlpool Turbidity Sensor, part number 99002650<\/p>\n<p>Pin 1 -&gt; Thermistor<\/p>\n<p>Pin 2 -&gt; Turbidity (photoresistor)<\/p>\n<p>Pin 3 -&gt; Photodiode<\/p>\n<p>Pin 4 -&gt; +5V Power Supply<\/p>\n<p>To use this sensor with an Arduino:<\/p>\n<p>Tie pin 1 to an analog input, and connect that pin via a 10K pull down (to ground) resistor<\/p>\n<p>Tie pin 2 to an analog input, and connect that pin via a 3K pull down (to ground) resistor<\/p>\n<p>Tie pin 3 to ground with a 150ohm resistor<\/p>\n<p>Tie pin 4 directly to 5V power<\/p>\n<p>We weren&#8217;t able to find much pinout information online so we thought we&#8217;d document this somewhere in the hopes of helping someone else.<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the course of one of our Makership Projects, we needed a water turbidity sensor. \u00a0Of course a new sensor was prohibitively expensive, but eBay pointed us towards inexpensive dishwasher sensors. \u00a0We ended up purchasing a Whirlpool Turbidity Sensor, part<span class=\"ellipsis\">&hellip;<\/span><\/p>\n<div class=\"read-more\"><a href=\"https:\/\/www.sector67.org\/blog\/2013\/whirlpool-turbidity-sensor\/\">Read more &#8250;<\/a><\/div>\n<p><!-- end of .read-more --><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-2596","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/www.sector67.org\/blog\/wp-json\/wp\/v2\/posts\/2596","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.sector67.org\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.sector67.org\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.sector67.org\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.sector67.org\/blog\/wp-json\/wp\/v2\/comments?post=2596"}],"version-history":[{"count":1,"href":"https:\/\/www.sector67.org\/blog\/wp-json\/wp\/v2\/posts\/2596\/revisions"}],"predecessor-version":[{"id":2597,"href":"https:\/\/www.sector67.org\/blog\/wp-json\/wp\/v2\/posts\/2596\/revisions\/2597"}],"wp:attachment":[{"href":"https:\/\/www.sector67.org\/blog\/wp-json\/wp\/v2\/media?parent=2596"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.sector67.org\/blog\/wp-json\/wp\/v2\/categories?post=2596"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.sector67.org\/blog\/wp-json\/wp\/v2\/tags?post=2596"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}