{"id":2589,"date":"2018-12-23T00:00:28","date_gmt":"2018-12-22T23:00:28","guid":{"rendered":"https:\/\/iot.fkainka.de\/?p=2589"},"modified":"2018-11-21T17:17:25","modified_gmt":"2018-11-21T16:17:25","slug":"day23-2018","status":"publish","type":"post","link":"https:\/\/iot.fkainka.de\/en\/day23-2018","title":{"rendered":"Day 23: Alarm System"},"content":{"rendered":"<p>The day before last reveals a tilt sensor behind the door of the Advent calendar. The sensor detects, if it is tilted. We will use it today as a sensor for an alarm system. The speaker from two days ago serves us as the signal generator. We will need the following setup.<\/p>\n<div id=\"attachment_2590\" style=\"width: 445px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/iot.fkainka.de\/wp-content\/uploads\/2018\/11\/Day23_Speaker_Tilt_Steckplatine.png\"><img aria-describedby=\"caption-attachment-2590\" decoding=\"async\" loading=\"lazy\" class=\" wp-image-2590\" src=\"https:\/\/iot.fkainka.de\/wp-content\/uploads\/2018\/11\/Day23_Speaker_Tilt_Steckplatine-671x1024.png\" alt=\"Der Aufbau\" width=\"435\" height=\"664\" data-id=\"2590\" srcset=\"https:\/\/iot.fkainka.de\/wp-content\/uploads\/2018\/11\/Day23_Speaker_Tilt_Steckplatine-671x1024.png 671w, https:\/\/iot.fkainka.de\/wp-content\/uploads\/2018\/11\/Day23_Speaker_Tilt_Steckplatine-197x300.png 197w, https:\/\/iot.fkainka.de\/wp-content\/uploads\/2018\/11\/Day23_Speaker_Tilt_Steckplatine-768x1172.png 768w, https:\/\/iot.fkainka.de\/wp-content\/uploads\/2018\/11\/Day23_Speaker_Tilt_Steckplatine.png 879w\" sizes=\"(max-width: 435px) 100vw, 435px\" \/><\/a><p id=\"caption-attachment-2590\" class=\"wp-caption-text\">Alarm Setup<\/p><\/div>\n<p>As usual, activate the program of today and install the Node-RED flow into the environment. Also adjust the MQTT topic and disable all previous flows.<\/p>\n<div id=\"attachment_2591\" style=\"width: 626px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/iot.fkainka.de\/wp-content\/uploads\/2018\/11\/T23Flow.png\"><img aria-describedby=\"caption-attachment-2591\" decoding=\"async\" loading=\"lazy\" class=\"size-large wp-image-2591\" src=\"https:\/\/iot.fkainka.de\/wp-content\/uploads\/2018\/11\/T23Flow-1024x246.png\" alt=\"Der Flow\" width=\"616\" height=\"148\" data-id=\"2591\" srcset=\"https:\/\/iot.fkainka.de\/wp-content\/uploads\/2018\/11\/T23Flow-1024x246.png 1024w, https:\/\/iot.fkainka.de\/wp-content\/uploads\/2018\/11\/T23Flow-300x72.png 300w, https:\/\/iot.fkainka.de\/wp-content\/uploads\/2018\/11\/T23Flow-768x184.png 768w, https:\/\/iot.fkainka.de\/wp-content\/uploads\/2018\/11\/T23Flow-972x233.png 972w, https:\/\/iot.fkainka.de\/wp-content\/uploads\/2018\/11\/T23Flow.png 1530w\" sizes=\"(max-width: 616px) 100vw, 616px\" \/><\/a><p id=\"caption-attachment-2591\" class=\"wp-caption-text\">The alarm system flow<\/p><\/div>\n<p><iframe style=\"border: none; width: 100%;\" src=\"https:\/\/pastebin.com\/embed_iframe\/cpS8Z4eX\"><\/iframe><\/p>\n<p>The flow now waits for the tilt sensor to be triggered and for a message published under the appropriate topic. This will trigger a trigger node, which will set the payload to TRUE. This is sent back to the board via a topic, which then triggers the alarm. After five seconds the trigger node will send a FALSE that will disable the alarm.<\/p>\n<p>In sync with the alarm signal via the board, a number of other nodes located at the top on the right will indicate the alarm. We have got here today the audio-out node to alert us. Then there is a text message popping up on the user interface. Beyond the user interface, you can use email or Twitter to receive information about an alarm. Another option is to install other nodes that will send push messages to your smartphone. <strong>Pushbullet<\/strong> is one of these services with a handy app, for example. Your smart home is thus protected against burglary and theft.<\/p>","protected":false},"excerpt":{"rendered":"<p>The day before last reveals a tilt sensor behind the door of the Advent calendar. The sensor detects, if it is tilted. We will use it today as a sensor for an alarm system. The speaker from two days ago&#8230;<br \/><a class=\"read-more-button\" href=\"https:\/\/iot.fkainka.de\/en\/day23-2018\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":2590,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","footnotes":"","jetpack_publicize_message":"","jetpack_is_tweetstorm":false,"jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","enabled":false}}},"categories":[315,312,313],"tags":[],"jetpack_publicize_connections":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Day 23: Alarm System - Internet of Things with the NanoESP<\/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:\/\/iot.fkainka.de\/day23-2018\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Day 23: Alarm System - Internet of Things with the NanoESP\" \/>\n<meta property=\"og:description\" content=\"The day before last reveals a tilt sensor behind the door of the Advent calendar. 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