{"product_id":"security-system-using-ldr","title":"Security System Using LDR","description":"This\u003cstrong\u003e Security System Using LDR Circuit\u003c\/strong\u003e is based on the operational amplifier IC 741, which is acting here as a comparator. As the light falls on the LDR R3, its resistance decreases, and the voltage at the V+ terminal of the opamp increases, as soon as it becomes more than V- set by the potentiometer R5, the output becomes high. Consequently, the buzzer and LED get turned on.\u003cbr\u003e \u003cbr\u003eThis prototype model can be placed at dark places where the entry of any person is prohibited. This \u003cstrong\u003eElectronic\u003c\/strong\u003e \u003cspan data-mce-fragment=\"1\"\u003e\u003cstrong\u003eSecurity System Using LDR Circuit\u003c\/strong\u003e is made of high-quality material. This is the product for you if you enjoy being scared every day of your life. \u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\n\u003cdiv class=\"product_info\"\u003e\n\u003ch3 class=\"sing--sub-heading\"\u003eCircuit Diagram\u003c\/h3\u003e\n\u003cdiv id=\"p_info\" style=\"text-align: center;\"\u003e\u003cimg alt=\"Security-System-block-diagram\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0587\/2130\/4757\/files\/Security-System-Using-LDR.jpg?v=1633673595\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cbr\u003e\u003cbr\u003e\n\u003cdiv class=\"product_info\"\u003e\n\u003ch3 class=\"sing--sub-heading\"\u003ePhysical Attributes\u003c\/h3\u003e\n\u003cdiv id=\"p_info\"\u003e\n\u003cul class=\"pro-ds\"\u003e\n\u003cli\u003eDimensions (cm) L x W x H : 15 x 12 x 5\u003c\/li\u003e\n\u003cli\u003eWeight (gm): 50\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cbr\u003e\u003cbr\u003e\n\u003cdiv class=\"product_info\"\u003e\n\u003ch3 class=\"sing--sub-heading\"\u003eProduct Video\u003c\/h3\u003e\n\u003cdiv id=\"p_video\"\u003e\u003ciframe width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/HhOufS_4rBk\" title=\"YouTube video player\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen=\"\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003cbr\u003e\n\u003cdiv id=\"p_video\"\u003e\u003ciframe width=\"800\" height=\"400\" src=\"https:\/\/www.youtube.com\/embed\/wMqj6D6YZB4\" title=\"YouTube video player\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen=\"\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003cbr\u003e\n\u003cdiv id=\"p_video\"\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/W6mixXsn-Vc\" height=\"400\" width=\"800\" allowfullscreen=\"\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" frameborder=\"0\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"KitsGuru","offers":[{"title":"DO IT YOURSELF KIT","offer_id":40708940660917,"sku":"LGBK010","price":199.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0587\/2130\/4757\/products\/security-system-project.jpg?v=1633673704","url":"https:\/\/kitsguru.com\/fr\/products\/security-system-using-ldr","provider":"KitsGuru","version":"1.0","type":"link"}