{"id":1310,"date":"2018-08-22T19:00:09","date_gmt":"2018-08-22T19:00:09","guid":{"rendered":"http:\/\/fambach.net\/?p=1310"},"modified":"2026-10-08T13:57:37","modified_gmt":"2026-10-08T13:57:37","slug":"sensor-ky-018-photowiderstand","status":"publish","type":"post","link":"https:\/\/www.fambach.net\/en\/sensor-ky-018-photowiderstand\/","title":{"rendered":"KY-018 Photoresistor Sensor"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_89 ez-toc-wrap-left counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Contents\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.fambach.net\/en\/sensor-ky-018-photowiderstand\/#Daten\" >Data<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.fambach.net\/en\/sensor-ky-018-photowiderstand\/#Fakten\" >Facts<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.fambach.net\/en\/sensor-ky-018-photowiderstand\/#Ansicht\" >View<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.fambach.net\/en\/sensor-ky-018-photowiderstand\/#Anwendungsgebiete\" >Areas of application<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.fambach.net\/en\/sensor-ky-018-photowiderstand\/#Funktionsweise\" >How it works<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.fambach.net\/en\/sensor-ky-018-photowiderstand\/#Versuchsaufbau\" >Experimental setup<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.fambach.net\/en\/sensor-ky-018-photowiderstand\/#Programmierung\" >Programming<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.fambach.net\/en\/sensor-ky-018-photowiderstand\/#Bibliotheken\" >Libraries<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.fambach.net\/en\/sensor-ky-018-photowiderstand\/#Testprogramm\" >Test programme<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.fambach.net\/en\/sensor-ky-018-photowiderstand\/#Ausgabe\" >Output<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.fambach.net\/en\/sensor-ky-018-photowiderstand\/#Fazit\" >Conclusion<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.fambach.net\/en\/sensor-ky-018-photowiderstand\/#Quellen\" >Sources<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n\n<p class=\"wp-block-paragraph\">Das Board KY-018 ist mit einem lichtabh\u00e4ngigen Widerstand und dem entsprechenden Vorwiderstand best\u00fcckt.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"daten\"><span class=\"ez-toc-section\" id=\"Daten\"><\/span>Data<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Voltage: 3V-5V (other voltages are conceivable)<br>Output: analogue voltage value<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ich vermute, dass hier ein\u00a0GL5528 \u00a0verbaut wurde.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"fakten\"><span class=\"ez-toc-section\" id=\"Fakten\"><\/span>Facts<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\" id=\"wpls-table-1\"><thead><tr><th>Annexation<\/th><th>Designation<\/th><\/tr><\/thead><tbody><tr><td>\u2013<\/td><td>Mass<\/td><\/tr><tr><td>+<\/td><td>V+ (3V-5V)<\/td><\/tr><tr><td>S<\/td><td>Signal<\/td><\/tr><\/tbody><\/table><figcaption> KY- 018 \u2013 Anschlussbelegung<\/figcaption><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"ansicht\"><span class=\"ez-toc-section\" id=\"Ansicht\"><\/span>View<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<figure class=\"wp-block-gallery columns-2 is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\"><ul class=\"blocks-gallery-grid\"><li class=\"blocks-gallery-item\"><figure><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"523\" src=\"https:\/\/www.fambach.net\/wp-content\/uploads\/2018\/08\/KY018_Front.jpg\" alt=\"\" data-id=\"1321\" data-full-url=\"https:\/\/www.fambach.net\/wp-content\/uploads\/2018\/08\/KY018_Front.jpg\" data-link=\"https:\/\/www.fambach.net\/sensor-ky-018-photowiderstand\/ky018_front\/\" class=\"wp-image-1321\" srcset=\"https:\/\/www.fambach.net\/wp-content\/uploads\/2018\/08\/KY018_Front.jpg 300w, https:\/\/www.fambach.net\/wp-content\/uploads\/2018\/08\/KY018_Front-7x12.jpg 7w, https:\/\/www.fambach.net\/wp-content\/uploads\/2018\/08\/KY018_Front-172x300.jpg 172w\" sizes=\"auto, (max-width: 599px) calc(100vw - 50px), (max-width: 767px) calc(100vw - 70px), (max-width: 991px) 429px, (max-width: 1199px) 637px, 354px\"><figcaption class=\"blocks-gallery-item__caption\">KY- 018 \u2013 Vorderseite<\/figcaption><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"484\" src=\"https:\/\/www.fambach.net\/wp-content\/uploads\/2018\/08\/KY018Back.jpg\" alt=\"\" data-id=\"1317\" data-full-url=\"https:\/\/www.fambach.net\/wp-content\/uploads\/2018\/08\/KY018Back.jpg\" data-link=\"https:\/\/www.fambach.net\/sensor-ky-018-photowiderstand\/ky018back\/\" class=\"wp-image-1317\" srcset=\"https:\/\/www.fambach.net\/wp-content\/uploads\/2018\/08\/KY018Back.jpg 300w, https:\/\/www.fambach.net\/wp-content\/uploads\/2018\/08\/KY018Back-7x12.jpg 7w, https:\/\/www.fambach.net\/wp-content\/uploads\/2018\/08\/KY018Back-186x300.jpg 186w\" sizes=\"auto, (max-width: 599px) calc(100vw - 50px), (max-width: 767px) calc(100vw - 70px), (max-width: 991px) 429px, (max-width: 1199px) 637px, 354px\"><figcaption class=\"blocks-gallery-item__caption\"> KY- 018 \u2013 R\u00fcckseite<\/figcaption><\/figure><\/li><\/ul><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"anwendungsgebiete\"><span class=\"ez-toc-section\" id=\"Anwendungsgebiete\"><\/span>Areas of application<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\"><li>Brightness measurement<\/li><li>As a sensor for aligning solar cells<\/li><li>Light barrier as a counterpart for the laser<\/li><li>Optocoupler as counterpart<\/li><\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"funktionsweise\"><span class=\"ez-toc-section\" id=\"Funktionsweise\"><\/span>How it works<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Ver\u00e4ndert sich die Lichtst\u00e4rke, die auf den Sensor trifft, ver\u00e4ndert dieser seinen Widerstand. Dies ist am Signalausgang als analoge Gr\u00f6\u00dfe messbar.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"versuchsaufbau\"><span class=\"ez-toc-section\" id=\"Versuchsaufbau\"><\/span>Experimental setup<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<figure class=\"wp-block-image\"><a href=\"https:\/\/fambach.net\/wp-content\/uploads\/2018\/08\/ARD_Sensor_KY018_Scetch.png\"><img loading=\"lazy\" decoding=\"async\" width=\"1020\" height=\"729\" src=\"https:\/\/fambach.net\/wp-content\/uploads\/2018\/08\/ARD_Sensor_KY018_Scetch.png\" alt=\"\" class=\"wp-image-1311\" srcset=\"https:\/\/www.fambach.net\/wp-content\/uploads\/2018\/08\/ARD_Sensor_KY018_Scetch.png 1020w, https:\/\/www.fambach.net\/wp-content\/uploads\/2018\/08\/ARD_Sensor_KY018_Scetch-18x12.png 18w, https:\/\/www.fambach.net\/wp-content\/uploads\/2018\/08\/ARD_Sensor_KY018_Scetch-300x214.png 300w, https:\/\/www.fambach.net\/wp-content\/uploads\/2018\/08\/ARD_Sensor_KY018_Scetch-768x549.png 768w\" sizes=\"auto, (max-width: 599px) calc(100vw - 50px), (max-width: 767px) calc(100vw - 70px), (max-width: 991px) 429px, (max-width: 1199px) 637px, 354px\"><\/a><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"programmierung\"><span class=\"ez-toc-section\" id=\"Programmierung\"><\/span>Programming<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"bibliotheken\"><span class=\"ez-toc-section\" id=\"Bibliotheken\"><\/span>Libraries<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\"><span class=\"ub-content-link ub-content-link--ok ub-content-link--status-after\"><a href=\"https:\/\/github.com\/QuentinCG\/Arduino-Light-Dependent-Resistor-Library\" class=\"ub-content-link__anchor\">Arduino Library<\/a><span class=\"ub-status ub-status--ok\" title=\"Link status: OK\"><span class=\"ub-status__icon\" aria-hidden=\"true\">\u25cf<\/span><span class=\"screen-reader-text\">Link status: OK<\/span><\/span><\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"testprogramm\"><span class=\"ez-toc-section\" id=\"Testprogramm\"><\/span>Test programme<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Ein kleines Testprogramm liest den analogen Port 0 aus. Hierbei ist zu beachten, dass die Ausgabe invertiert ist (wenig Licht, hoher Wert). <\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>void setup() {\n  Serial.begin(115200);\n  pinMode(A0, INPUT);\n}\nvoid loop() {\n  int LDR = analogRead(A0);\n  Serial.println(LDR);\n}\n<\/code><\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"ausgabe\"><span class=\"ez-toc-section\" id=\"Ausgabe\"><\/span>Output<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<figure class=\"wp-block-image\"><a href=\"https:\/\/fambach.net\/wp-content\/uploads\/2018\/08\/KY-018_photoresistor_module_test_Console.png\"><img loading=\"lazy\" decoding=\"async\" width=\"394\" height=\"333\" src=\"https:\/\/fambach.net\/wp-content\/uploads\/2018\/08\/KY-018_photoresistor_module_test_Console.png\" alt=\"\" class=\"wp-image-1312\" srcset=\"https:\/\/www.fambach.net\/wp-content\/uploads\/2018\/08\/KY-018_photoresistor_module_test_Console.png 394w, https:\/\/www.fambach.net\/wp-content\/uploads\/2018\/08\/KY-018_photoresistor_module_test_Console-14x12.png 14w, https:\/\/www.fambach.net\/wp-content\/uploads\/2018\/08\/KY-018_photoresistor_module_test_Console-300x254.png 300w\" sizes=\"auto, (max-width: 599px) calc(100vw - 50px), (max-width: 767px) calc(100vw - 70px), (max-width: 991px) 429px, (max-width: 1199px) 637px, 354px\"><\/a><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"fazit\"><span class=\"ez-toc-section\" id=\"Fazit\"><\/span>Conclusion<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A useful sensor ;).<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"quellen\"><span class=\"ez-toc-section\" id=\"Quellen\"><\/span>Sources<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><span class=\"ub-content-link ub-content-link--ok ub-content-link--status-after\"><a href=\"http:\/\/sensorkit.joy-it.net\/index.php?title=KY-018_Fotowiderstand_Modul\" class=\"ub-content-link__anchor\">http:\/\/sensorkit.joy-it.net\/index.php?title=KY-018_Fotowiderstand_Modul<\/a><span class=\"ub-status ub-status--ok\" title=\"Link status: OK\"><span class=\"ub-status__icon\" aria-hidden=\"true\">\u25cf<\/span><span class=\"screen-reader-text\">Link status: OK<\/span><\/span><\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span class=\"ub-content-link ub-content-link--ok ub-content-link--status-after\"><a href=\"https:\/\/github.com\/rdiot\/rdiot-s002\" class=\"ub-content-link__anchor\">https:\/\/github.com\/rdiot\/rdiot-s002<\/a><span class=\"ub-status ub-status--ok\" title=\"Link status: OK\"><span class=\"ub-status__icon\" aria-hidden=\"true\">\u25cf<\/span><span class=\"screen-reader-text\">Link status: OK<\/span><\/span><\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span class=\"ub-content-link ub-content-link--ok ub-content-link--status-after\"><a href=\"http:\/\/home.roboticlab.eu\/de\/examples\/sensor\/photoresistor\" class=\"ub-content-link__anchor\">http:\/\/home.roboticlab.eu\/de\/examples\/sensor\/photoresistor<\/a><span class=\"ub-status ub-status--ok\" title=\"Link status: OK\"><span class=\"ub-status__icon\" aria-hidden=\"true\">\u25cf<\/span><span class=\"screen-reader-text\">Link status: OK<\/span><\/span><\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span class=\"ub-content-link ub-content-link--ok ub-content-link--status-after\"><a href=\"https:\/\/pi.gate.ac.uk\/pages\/airpi-files\/PD0001.pdf\" class=\"ub-content-link__anchor\">Datasheet for GL5528<\/a><span class=\"ub-status ub-status--ok\" title=\"Link status: OK\"><span class=\"ub-status__icon\" aria-hidden=\"true\">\u25cf<\/span><span class=\"screen-reader-text\">Link status: OK<\/span><\/span><\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span class=\"ub-content-link ub-content-link--broken ub-content-link--status-after is-broken\"><a href=\"http:\/\/akizukidenshi.com\/download\/ds\/senba\/GL55%20Series%20Photoresistor.pdf\" class=\"ub-content-link__anchor\" title=\"This link appears to be broken.\">Datasheet for the GL55 Series<\/a><span class=\"ub-status ub-status--broken\" title=\"Link status: Broken\"><span class=\"ub-status__icon\" aria-hidden=\"true\">\u25cf<\/span><span class=\"screen-reader-text\">Link status: Broken<\/span><\/span><\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span class=\"ub-content-link ub-content-link--ok ub-content-link--status-after\"><a href=\"https:\/\/github.com\/QuentinCG\/Arduino-Light-Dependent-Resistor-Library\" class=\"ub-content-link__anchor\">Arduino Library<\/a><span class=\"ub-status ub-status--ok\" title=\"Link status: OK\"><span class=\"ub-status__icon\" aria-hidden=\"true\">\u25cf<\/span><span class=\"screen-reader-text\">Link status: OK<\/span><\/span><\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span class=\"ub-content-link ub-content-link--unknown ub-content-link--status-after\"><a href=\"https:\/\/www.allaboutcircuits.com\/projects\/design-a-luxmeter-using-a-light-dependent-resistor\/\" class=\"ub-content-link__anchor\">Gut erkl\u00e4rte Lux Berechnung (eng)<\/a><span class=\"ub-status ub-status--unknown\" title=\"Link status: Unknown\"><span class=\"ub-status__icon\" aria-hidden=\"true\">\u25cf<\/span><span class=\"screen-reader-text\">Link status: Unknown<\/span><\/span><\/span><\/p>","protected":false},"excerpt":{"rendered":"<p>Das Board KY-018 ist mit einem lichtabh\u00e4ngigen Widerstand und dem entsprechenden Vorwiderstand best\u00fcckt. Daten Spannung: 3V-5V (andere Spannungen sind denkbar)Ausgang: analoger Spannungswert Ich vermute, dass hier ein\u00a0GL5528 \u00a0verbaut wurde. Fakten Anschluss Bezeichnung &#8211; Masse + V+ (3V-5V) S Signal KY- 018 &#8211; Anschlussbelegung Ansicht Anwendungsgebiete Helligkeitsmessung Als Sensor zur Ausrichtung von Solarzellen Lichtschranke als Gegenstelle &#8230;<\/p>\n<a href=\"https:\/\/www.fambach.net\/en\/sensor-ky-018-photowiderstand\/\" class=\"read-more-link\">Carry on reading <span class=\"screen-reader-text\">\"Sensor KY-018 Photowiderstand\"<\/span> <span class=\"meta-nav\">\u2192<\/span><\/a>","protected":false},"author":1,"featured_media":1320,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_lmt_disableupdate":"no","_lmt_disable":"no","footnotes":""},"categories":[178,180,197,167],"tags":[35,67,68,5,49],"class_list":["post-1310","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-arduino-projekte","category-ardunio-uno","category-lichtmessung","category-sensor","tag-c","tag-ldr","tag-phototransistor","tag-sensor","tag-uno","penguin-post","penguin-post-not-sticky"],"modified_by":"sfambach","_links":{"self":[{"href":"https:\/\/www.fambach.net\/en\/wp-json\/wp\/v2\/posts\/1310","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.fambach.net\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.fambach.net\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.fambach.net\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fambach.net\/en\/wp-json\/wp\/v2\/comments?post=1310"}],"version-history":[{"count":13,"href":"https:\/\/www.fambach.net\/en\/wp-json\/wp\/v2\/posts\/1310\/revisions"}],"predecessor-version":[{"id":18314,"href":"https:\/\/www.fambach.net\/en\/wp-json\/wp\/v2\/posts\/1310\/revisions\/18314"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.fambach.net\/en\/wp-json\/wp\/v2\/media\/1320"}],"wp:attachment":[{"href":"https:\/\/www.fambach.net\/en\/wp-json\/wp\/v2\/media?parent=1310"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fambach.net\/en\/wp-json\/wp\/v2\/categories?post=1310"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fambach.net\/en\/wp-json\/wp\/v2\/tags?post=1310"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}