{"id":3660,"date":"2023-07-04T02:15:46","date_gmt":"2023-07-04T02:15:46","guid":{"rendered":"https:\/\/projectkitsandparts.com\/?p=3660"},"modified":"2023-08-31T04:07:09","modified_gmt":"2023-08-31T04:07:09","slug":"pir-sensor-interfacing-with-arduino","status":"publish","type":"post","link":"https:\/\/projectkitsandparts.com\/index.php\/2023\/07\/04\/pir-sensor-interfacing-with-arduino\/","title":{"rendered":"PIR sensor Interfacing With Arduino"},"content":{"rendered":"\n<p class=\"has-vivid-cyan-blue-color has-text-color wp-block-paragraph\"><strong>Introduction to PIR Sensor:<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A PIR sensor is a device that can detect the presence of humans or animals by measuring the infrared radiation emitted by their bodies. It is commonly used in security systems, motion-activated lighting, and other applications that require motion detection.<\/p>\n\n\n\n<figure class=\"wp-block-image size-medium\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"291\" src=\"https:\/\/projectkitsandparts.com\/wp-content\/uploads\/2023\/08\/PIR-module-300x291.jpg\" alt=\"\" class=\"wp-image-3661\" srcset=\"https:\/\/projectkitsandparts.com\/wp-content\/uploads\/2023\/08\/PIR-module-300x291.jpg 300w, https:\/\/projectkitsandparts.com\/wp-content\/uploads\/2023\/08\/PIR-module.jpg 499w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/figure>\n\n\n\n<p class=\"has-vivid-cyan-blue-color has-text-color wp-block-paragraph\"><strong>Working Principle:<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A PIR sensor detects changes in infrared radiation within its field of view. The sensor consists of two halves, each containing a pyroelectric sensor. When an object emits infrared radiation, the sensor detects the difference in heat between the two halves, triggering an output signal.<\/p>\n\n\n\n<p class=\"has-vivid-cyan-blue-color has-text-color wp-block-paragraph\"><strong>Specification of PIR Sensor:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Detection range: up to 7 meters<\/li>\n\n\n\n<li>Detection angle: 110 degrees<\/li>\n\n\n\n<li>Operating voltage: DC 4.5V &#8211; 12V DC<\/li>\n\n\n\n<li>Output signal: 3.3V digital output<\/li>\n\n\n\n<li>Delay time: adjustable from 0.3 seconds to 5 minutes<\/li>\n\n\n\n<li>Operating temperature: -15\u00b0C to +70\u00b0C<\/li>\n\n\n\n<li>Sensitivity: Adjustable<\/li>\n\n\n\n<li>&nbsp;<\/li>\n<\/ul>\n\n\n\n<p class=\"has-vivid-cyan-blue-color has-text-color wp-block-paragraph\"><strong>Adjusting PIR Sensor Sensitivity:<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Some PIR sensors have a sensitivity adjustment potentiometer. By adjusting this potentiometer, you can control the detection range and sensitivity of the sensor.<\/p>\n\n\n\n<p class=\"has-vivid-cyan-blue-color has-text-color wp-block-paragraph\"><strong>Components Required<\/strong><\/p>\n\n\n\n<ol class=\"wp-block-list\" type=\"1\">\n<li>Arduino UNO<\/li>\n\n\n\n<li>PIR Sensor<\/li>\n\n\n\n<li>Power supply&nbsp;<\/li>\n\n\n\n<li>Connecting wires<\/li>\n<\/ol>\n\n\n\n<p class=\"has-vivid-cyan-blue-color has-text-color wp-block-paragraph\"><strong>Hardware Connections:<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">To connect the PIR sensor to an Arduino board, follow these steps:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<ol class=\"wp-block-list\" type=\"1\">\n<li>VCC pin&#8211;5V pin of the Arduino board.<\/li>\n\n\n\n<li>&nbsp;GND pin&#8211;GND pin of the Arduino board.<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;     3. OUT pin&#8211;Connect it to digital pin 9 of the Arduino.<\/p>\n\n\n\n<h2 class=\"wp-block-heading has-luminous-vivid-amber-color has-text-color\">Circuit Connection:<\/h2>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/projectkitsandparts.com\/wp-content\/uploads\/2023\/08\/PIR-sensor-connection-1024x547.png\" alt=\"\" class=\"wp-image-3662\" style=\"width:840px;height:448px\" width=\"840\" height=\"448\" srcset=\"https:\/\/projectkitsandparts.com\/wp-content\/uploads\/2023\/08\/PIR-sensor-connection-1024x547.png 1024w, https:\/\/projectkitsandparts.com\/wp-content\/uploads\/2023\/08\/PIR-sensor-connection-300x160.png 300w, https:\/\/projectkitsandparts.com\/wp-content\/uploads\/2023\/08\/PIR-sensor-connection-768x410.png 768w, https:\/\/projectkitsandparts.com\/wp-content\/uploads\/2023\/08\/PIR-sensor-connection-600x320.png 600w, https:\/\/projectkitsandparts.com\/wp-content\/uploads\/2023\/08\/PIR-sensor-connection.png 1116w\" sizes=\"auto, (max-width: 840px) 100vw, 840px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">CODE:<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">int pirPin = 9; \u00a0\u00a0\u00a0\u00a0<a href=\"https:\/\/projectkitsandparts.com\/\">\/\/projectkitsandparts.com\/<\/a> develop by Surabhi.N.Bhivsenkar<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">void setup() {<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp; Serial.begin(9600);<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp; pinMode(pirPin, INPUT);<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">}<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">void loop() {<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp; int motion = digitalRead(pirPin);<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp; if (motion == HIGH) {<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp; Serial.println(&#8220;Motion detected!&#8221;);<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp; } else {<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp; Serial.println(&#8220;No motion detected.&#8221;);<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp; }<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp; delay(1000);<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">}<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Code Explanation:<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">1&nbsp; In the `setup()` function, we initialize the serial communication at a baud rate of 9600 and set the PIR pin as an input.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">2&nbsp; &nbsp;In the `loop()` function, we read the state of the PIR sensor using `digitalRead(pirPin)`. If motion is detected (the PIR sensor outputs a HIGH signal), it prints &#8220;Motion detected!&#8221; to the serial monitor. Otherwise, it prints &#8220;No motion detected.&#8221;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">3 &nbsp;We introduce a delay of 1 second between readings using `delay(1000)`.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">OUTPUT<\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/projectkitsandparts.com\/wp-content\/uploads\/2023\/08\/PIR-sensor-output-1024x576.jpg\" alt=\"\" class=\"wp-image-3663\" srcset=\"https:\/\/projectkitsandparts.com\/wp-content\/uploads\/2023\/08\/PIR-sensor-output-1024x576.jpg 1024w, https:\/\/projectkitsandparts.com\/wp-content\/uploads\/2023\/08\/PIR-sensor-output-300x169.jpg 300w, https:\/\/projectkitsandparts.com\/wp-content\/uploads\/2023\/08\/PIR-sensor-output-768x432.jpg 768w, https:\/\/projectkitsandparts.com\/wp-content\/uploads\/2023\/08\/PIR-sensor-output-600x337.jpg 600w, https:\/\/projectkitsandparts.com\/wp-content\/uploads\/2023\/08\/PIR-sensor-output.jpg 1366w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Introduction to PIR Sensor: A PIR sensor is a device that can detect the presence of humans or animals by measuring the infrared radiation emitted by their bodies. It is commonly used in security systems, motion-activated lighting, and other applications that require motion detection. Working Principle: A PIR sensor detects changes in infrared radiation within &hellip; <a href=\"https:\/\/projectkitsandparts.com\/index.php\/2023\/07\/04\/pir-sensor-interfacing-with-arduino\/\" class=\"more-link\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":3664,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[415],"tags":[429,418,435,432,443,444,430],"class_list":["post-3660","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-arduino","tag-arduino","tag-arduino-uno","tag-cool-mad-kits","tag-dolphin-labs","tag-pir","tag-pir-interface","tag-project-kits"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>PIR sensor Interfacing With Arduino - Projectkitsandparts<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/projectkitsandparts.com\/index.php\/2023\/07\/04\/pir-sensor-interfacing-with-arduino\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"PIR sensor Interfacing With Arduino - Projectkitsandparts\" \/>\n<meta property=\"og:description\" content=\"Introduction to PIR Sensor: A PIR sensor is a device that can detect the presence of humans or animals by measuring the infrared radiation emitted by their bodies. It is commonly used in security systems, motion-activated lighting, and other applications that require motion detection. Working Principle: A PIR sensor detects changes in infrared radiation within &hellip; Read more\" \/>\n<meta property=\"og:url\" content=\"https:\/\/projectkitsandparts.com\/index.php\/2023\/07\/04\/pir-sensor-interfacing-with-arduino\/\" \/>\n<meta property=\"og:site_name\" content=\"Projectkitsandparts\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-04T02:15:46+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-08-31T04:07:09+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/projectkitsandparts.com\/wp-content\/uploads\/2023\/08\/PIR-sensor-Setup.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1280\" \/>\n\t<meta property=\"og:image:height\" content=\"964\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"dolphin_admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"dolphin_admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/projectkitsandparts.com\\\/index.php\\\/2023\\\/07\\\/04\\\/pir-sensor-interfacing-with-arduino\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/projectkitsandparts.com\\\/index.php\\\/2023\\\/07\\\/04\\\/pir-sensor-interfacing-with-arduino\\\/\"},\"author\":{\"name\":\"dolphin_admin\",\"@id\":\"https:\\\/\\\/projectkitsandparts.com\\\/#\\\/schema\\\/person\\\/333aa5901bb48fcd9d960a9a2d398e1e\"},\"headline\":\"PIR sensor Interfacing With Arduino\",\"datePublished\":\"2023-07-04T02:15:46+00:00\",\"dateModified\":\"2023-08-31T04:07:09+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/projectkitsandparts.com\\\/index.php\\\/2023\\\/07\\\/04\\\/pir-sensor-interfacing-with-arduino\\\/\"},\"wordCount\":345,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/projectkitsandparts.com\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/projectkitsandparts.com\\\/index.php\\\/2023\\\/07\\\/04\\\/pir-sensor-interfacing-with-arduino\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/projectkitsandparts.com\\\/wp-content\\\/uploads\\\/2023\\\/08\\\/PIR-sensor-Setup.jpg\",\"keywords\":[\"Arduino\",\"Arduino uno\",\"cool mad kits\",\"dolphin labs\",\"PIR\",\"PIR Interface\",\"project kits\"],\"articleSection\":[\"Arduino Uno\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/projectkitsandparts.com\\\/index.php\\\/2023\\\/07\\\/04\\\/pir-sensor-interfacing-with-arduino\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/projectkitsandparts.com\\\/index.php\\\/2023\\\/07\\\/04\\\/pir-sensor-interfacing-with-arduino\\\/\",\"url\":\"https:\\\/\\\/projectkitsandparts.com\\\/index.php\\\/2023\\\/07\\\/04\\\/pir-sensor-interfacing-with-arduino\\\/\",\"name\":\"PIR sensor Interfacing With Arduino - 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