{"product_id":"dtmf-controlled-door-lock","title":"DTMF Controlled Door Lock","description":"The main objective of a \u003cstrong\u003ekeyless mobile-controlled locks\u003c\/strong\u003e system is to unlock a garage door (different types of the door) by a mobile phone using a unique password entered through the phone's keypad. Opening and closing garage doors involves human labor. In this password system, the opening and closing of a garage door are achieved by using a mobile phone. The owner can call a mobile phone interface to the system which in turn is connected to the garage door that can open\/close the door by entering the password.\u003cbr\u003e\u003cbr\u003e This kit is based on the concept of \u003cstrong\u003eDTMF (dual-tone multi-frequency)\u003c\/strong\u003e technology. Every numeric button on the keypad of a mobile phone generates a unique frequency when pressed. These frequencies are decoded by the \u003cstrong\u003eDTMF decoder\u003c\/strong\u003e IC at the receiving end which is fed to the microcontroller. If these decoded values (password entered by the user) matches with the password stored in the microcontroller, then the microcontroller initiates a mechanism to open the door through a motor driver (L293D IC) interface.\u003cbr\u003e\u003cbr\u003e The objective of this\u003cstrong\u003e DTMF Controlled Door Lock kit\u003c\/strong\u003e is to develop a device that allows a user to remotely control and monitor a garage door using a cellular phone. This system is powerful and provides such service at any time and from anywhere.\u003cbr\u003e\u003cbr\u003e\n\u003cdiv style=\"text-align: start;\" class=\"product_info\"\u003e\n\u003ch3 class=\"sing--sub-heading\"\u003eBlock Diagram\u003c\/h3\u003e\n\u003cp\u003e\u003cimg height=\"85%\" width=\"85%\" style=\"float: none;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0587\/2130\/4757\/files\/block-diagram.jpg?v=1634553592\"\u003e\u003c\/p\u003e\n\u003c\/div\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 : 28 x 24 x 8\u003c\/li\u003e\n\u003cli\u003eWeight (gm): 1000\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\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 title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/nIj9ct4qf-U\" 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\u003cdiv id=\"p_video\"\u003e\u003ciframe width=\"800\" height=\"400\" src=\"https:\/\/www.youtube.com\/embed\/6rmErwU5E-k\" 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\u003cdiv id=\"p_video\"\u003e\u003ciframe width=\"800\" height=\"400\" src=\"https:\/\/www.youtube.com\/embed\/Fp37DPZVdRI\" 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\u003c\/div\u003e","brand":"KitsGuru","offers":[{"title":"DO IT YOURSELF","offer_id":40708817813685,"sku":"LGEC001","price":1449.0,"currency_code":"INR","in_stock":true},{"title":"READY TO USE","offer_id":40708817846453,"sku":"LGEC001_R","price":1999.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0587\/2130\/4757\/products\/DTMFControlledDoorLock.jpg?v=1643284164","url":"https:\/\/kitsguru.com\/de\/products\/dtmf-controlled-door-lock","provider":"KitsGuru","version":"1.0","type":"link"}