{"id":2489,"date":"2018-12-08T00:00:21","date_gmt":"2018-12-07T23:00:21","guid":{"rendered":"https:\/\/iot.fkainka.de\/?p=2489"},"modified":"2018-11-19T20:43:36","modified_gmt":"2018-11-19T19:43:36","slug":"day8-2018","status":"publish","type":"post","link":"https:\/\/iot.fkainka.de\/en\/day8-2018","title":{"rendered":"Day 8: A Controller"},"content":{"rendered":"<p><div id=\"attachment_2490\" style=\"width: 522px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/iot.fkainka.de\/wp-content\/uploads\/2018\/11\/Day8_Button_LED_ADC_Steckplatine.png\"><img aria-describedby=\"caption-attachment-2490\" decoding=\"async\" loading=\"lazy\" class=\" wp-image-2490\" src=\"https:\/\/iot.fkainka.de\/wp-content\/uploads\/2018\/11\/Day8_Button_LED_ADC_Steckplatine-827x1024.png\" alt=\"Versuchsaufbau\" width=\"512\" height=\"633\" data-id=\"2490\" srcset=\"https:\/\/iot.fkainka.de\/wp-content\/uploads\/2018\/11\/Day8_Button_LED_ADC_Steckplatine-827x1024.png 827w, https:\/\/iot.fkainka.de\/wp-content\/uploads\/2018\/11\/Day8_Button_LED_ADC_Steckplatine-242x300.png 242w, https:\/\/iot.fkainka.de\/wp-content\/uploads\/2018\/11\/Day8_Button_LED_ADC_Steckplatine-768x951.png 768w, https:\/\/iot.fkainka.de\/wp-content\/uploads\/2018\/11\/Day8_Button_LED_ADC_Steckplatine.png 879w\" sizes=\"(max-width: 512px) 100vw, 512px\" \/><\/a><p id=\"caption-attachment-2490\" class=\"wp-caption-text\">Breadboard Construction<\/p><\/div><\/p>\n<p>On the eighth day you will find a potentiometer behind the door. We are going to use it as voltage divider. You can set a voltage between 0 V and 3.3 V, which is measured by the board and sent to NodeRED. On top of to the functions of yesterday\u2019s stairway light, you can also send the measured values.<\/p>\n<div id=\"attachment_2491\" style=\"width: 626px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/iot.fkainka.de\/wp-content\/uploads\/2018\/11\/T8Flow.png\"><img aria-describedby=\"caption-attachment-2491\" decoding=\"async\" loading=\"lazy\" class=\"size-large wp-image-2491\" src=\"https:\/\/iot.fkainka.de\/wp-content\/uploads\/2018\/11\/T8Flow-1024x256.png\" alt=\"Der Flow des heutigen Tages\" width=\"616\" height=\"154\" data-id=\"2491\" srcset=\"https:\/\/iot.fkainka.de\/wp-content\/uploads\/2018\/11\/T8Flow-1024x256.png 1024w, https:\/\/iot.fkainka.de\/wp-content\/uploads\/2018\/11\/T8Flow-300x75.png 300w, https:\/\/iot.fkainka.de\/wp-content\/uploads\/2018\/11\/T8Flow-768x192.png 768w, https:\/\/iot.fkainka.de\/wp-content\/uploads\/2018\/11\/T8Flow-972x243.png 972w, https:\/\/iot.fkainka.de\/wp-content\/uploads\/2018\/11\/T8Flow.png 1084w\" sizes=\"(max-width: 616px) 100vw, 616px\" \/><\/a><p id=\"caption-attachment-2491\" class=\"wp-caption-text\">The Flow of Today<\/p><\/div>\n<p><iframe style=\"border: none; width: 100%;\" src=\"https:\/\/pastebin.com\/embed_iframe\/FNtPZnht\"><\/iframe><\/p>\n<p>As usual you can obtain today\u2019s flow from here. Don\u2019t forget to disable yesterday\u2019s flow and you may need to adjust the send-IP. The flow of today also has a new node for the dashboard, namely a gauge to visually display the measured value.<\/p>\n<div id=\"attachment_2492\" style=\"width: 418px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/iot.fkainka.de\/wp-content\/uploads\/2018\/11\/T8Gui.png\"><img aria-describedby=\"caption-attachment-2492\" decoding=\"async\" loading=\"lazy\" class=\"size-full wp-image-2492\" src=\"https:\/\/iot.fkainka.de\/wp-content\/uploads\/2018\/11\/T8Gui.png\" alt=\"Das Userinterface zum heutigen Versuch\" width=\"408\" height=\"423\" data-id=\"2492\" srcset=\"https:\/\/iot.fkainka.de\/wp-content\/uploads\/2018\/11\/T8Gui.png 408w, https:\/\/iot.fkainka.de\/wp-content\/uploads\/2018\/11\/T8Gui-289x300.png 289w\" sizes=\"(max-width: 408px) 100vw, 408px\" \/><\/a><p id=\"caption-attachment-2492\" class=\"wp-caption-text\">User interface of the experiment today.<\/p><\/div>\n<p>Once you have today\u2019s program enable, you will see a gauge element (a pointer) on the dashboard page that refreshes every two seconds and shows new readings. If you now turn the wheel of the potentiometer, these values will\u00a0 change. This measured value could be used for different applications such as to control the brightness of the LED or to set the lighting time of the staircase lighting; again, a typical smart home application.<\/p>\n<p><div id=\"attachment_2493\" style=\"width: 626px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/iot.fkainka.de\/wp-content\/uploads\/2018\/11\/T8_Real.jpg\"><img aria-describedby=\"caption-attachment-2493\" decoding=\"async\" loading=\"lazy\" class=\"size-large wp-image-2493\" src=\"https:\/\/iot.fkainka.de\/wp-content\/uploads\/2018\/11\/T8_Real-1024x726.jpg\" alt=\"Der Versuchsaufbau mit Pin-Schablone\" width=\"616\" height=\"437\" data-id=\"2493\" srcset=\"https:\/\/iot.fkainka.de\/wp-content\/uploads\/2018\/11\/T8_Real-1024x726.jpg 1024w, https:\/\/iot.fkainka.de\/wp-content\/uploads\/2018\/11\/T8_Real-300x213.jpg 300w, https:\/\/iot.fkainka.de\/wp-content\/uploads\/2018\/11\/T8_Real-768x544.jpg 768w, https:\/\/iot.fkainka.de\/wp-content\/uploads\/2018\/11\/T8_Real-972x689.jpg 972w\" sizes=\"(max-width: 616px) 100vw, 616px\" \/><\/a><p id=\"caption-attachment-2493\" class=\"wp-caption-text\">Todays breadboard bonstruction with pin\u00a0<span lang=\"en\">template<\/span><\/p><\/div><\/p>","protected":false},"excerpt":{"rendered":"<p>On the eighth day you will find a potentiometer behind the door. We are going to use it as voltage divider. You can set a voltage between 0 V and 3.3 V, which is measured by the board and sent&#8230;<br \/><a class=\"read-more-button\" href=\"https:\/\/iot.fkainka.de\/en\/day8-2018\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":2492,"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 8: A Controller - 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\/day8-2018\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Day 8: A Controller - Internet of Things with the NanoESP\" \/>\n<meta property=\"og:description\" content=\"On the eighth day you will find a potentiometer behind the door. 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