{"id":11806,"date":"2021-08-30T14:19:29","date_gmt":"2021-08-30T04:19:29","guid":{"rendered":"https:\/\/kookaberry.auststem.com.au\/?post_type=app&p=11806"},"modified":"2021-08-30T14:19:29","modified_gmt":"2021-08-30T04:19:29","slug":"senseuvi","status":"publish","type":"app","link":"https:\/\/learn.auststem.com.au\/app\/senseuvi\/","title":{"rendered":"SenseUVI"},"content":{"rendered":"

This App senses 200-370nm wavelength UV<\/span> light and gives an analogue output between 0-1V proportional to the UV Index.<\/p>\n

Directions<\/h3>\n

Setup<\/h4>\n

Plug the Analogue Ultraviolet (UV) sensor<\/a> into P5; navigate to the SenseUVI app on the Kookaberry’s menu and press Button B to run<\/p>\n

\"\"\u00a0 \u00a0 \u00a0 \"\"<\/p>\n

Running the app<\/h4>\n

\"\"<\/p>\n

What is showing on the screen?<\/strong><\/em><\/p>\n

    \n
  1. Top Row<\/strong>: Name of app; ID of Kookaberry (01); Pin for connection of peripheral (P5)<\/li>\n
  2. Second Row<\/strong>: Graphical representation of analogue input from 0 to 1V; UV Index (0 to 11)<\/li>\n
  3. Third Row<\/strong>: Value of incoming analogue voltage from the peripheral<\/li>\n
  4. Fourth Row<\/strong>: UV Risk Level in accordance with the Australian BOM\u00a0UV<\/span>\u00a0Index risk scale:\u00a0http:\/\/www.bom.gov.au\/uv<\/span>\/<\/a><\/li>\n
  5. Fifth Row<\/strong>: Date and elapsed time since commencement of Run<\/li>\n
  6. Sixth Row:<\/strong>\u00a0Button A<\/strong>\u00a0is Exit from app; time in secs until next logging event.<\/li>\n<\/ol>\n

    Using the app<\/h3>\n

    IMPORTANT<\/strong>: the sensor requires a source of UV light to operate, and will not show a value unless exposed to direct sunlight or a UV light.<\/span><\/p>\n

    It is difficult to observe the screen in direct sunlight but the app is measuring and logging the UVI at the data logging interval set by the _config app. These values are stored in the Kookaberry’s memory in a CSV file called SenseUVI.csv, and transmitted by radio at the data logging interval. These values can be captured by running SenseRX on a Kookaberry not more than about 5 metres distant.<\/p>\n

    The sensor used in this app operates in the same way as the\u00a0ambient light sensor<\/a> except that instead of operating in the visible light frequency range of 380-700nm, its photodiode is sensitive to ultraviolet light in the frequency range 200-370nm.<\/p>\n

    The relationship between UV index and the photoelectric current generated by the photodiode is linear. The ultraviolet radiation falling on the photodiode generates a voltage between 0-1V which corresponds to a UV index between 0-11.<\/p>\n

    For this sensor, each point on the UV Index scale is equivalent to 20 milliwatts per square meter of UV radiation. This is the \u201cAnalog Value\u201d in the table below.<\/p>\n

    \n
    <\/figure>\n
    \"\"\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \"\"<\/figure>\n

     <\/figure>\n","protected":false},"author":38,"featured_media":11687,"comment_status":"open","ping_status":"closed","template":"","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"environment":[],"app-category":[7700,7630,7678,7709],"yoast_head":"\nSenseUVI - AustSTEM Digital Learning Hub<\/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:\/\/learn.auststem.com.au\/app\/senseuvi\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"SenseUVI - AustSTEM Digital Learning Hub\" \/>\n<meta property=\"og:description\" content=\"This App senses 200-370nm wavelength UV light and gives an analogue output between 0-1V proportional to the UV Index. 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