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--- project:openletten [2011/10/01 14:47] – tamberg
+++ project:openletten [2017/09/22 18:37] (current) – [OpenLetten] tamberg
@@ Line 2: / Line 2: @@
-Letten is a place at the Limmat river right behind the ZHdK building (where MakeOpenData is hosted) in Zürich.
+This project is less about "data" than the others, and more about "open". Letten is a place at the Limmat river right behind the ZHdK building (where MakeOpenData is hosted) in Zürich, where lots of people like to swim.
-{{http://farm5.static.flickr.com/4046/4681369986_55b33bd2fe.jpg}}
+{{https://farm5.staticflickr.com/4046/4681369986_55851fd15c_z.jpg}}
@@ Line 11: / Line 11: @@
-The project idea is described here:
+Daily temperature measurements taken at this exact location are readily available on the Web, but they are published in a hard to parse PDF document oriented towards  "scientific"  readers. This projects shows what is necessary to make use of the same data to answer the simple question "Should I go swimming today". Different visualizations are shown as a proof of concept. Finally a mashup connects the temperature to an LED to get a basic, physical "ambient notification".
-[[http://makeopendata.ch/forum/discussion/5/physical-mashup-of-a-multicolor-led-and-the-current-water-temperature-at-letten-environmental-data|http://makeopendata.ch/forum/discussion/5/physical-mashup-of-a-multicolor-led-and-the-current-water-temperature-at-letten-environmental-data]]
@@ Line 21: / Line 18: @@
 ===== Data =====
+First, the PDF data is parsed by HwPdfToPachube.exe, a rather complex C# program given the simple task of extracting the current temperature. IT took me 4 hours to write it. The data is then published to Pachube, a sensor platform based on open data formats. There might of course be other such platforms that could be used.
     * [[http://www.hw.zh.ch/hochwasser/mac/at/0851.PDF|http://www.hw.zh.ch/hochwasser/mac/at/0851.PDF]] (Source data,     PDF )
-    * [[https://pachube.com/feeds/36745|https://pachube.com/feeds/36745]] ("Open" data, available as    XML, JSON, CSV feed)
@@ Line 30: / Line 29: @@
-===== Visualization =====
+    * [[https://pachube.com/feeds/36745|https://pachube.com/feeds/36745]] ("Open" data, available as    XML, JSON, CSV feed)
-    * [[http://www.tamberg.org/makeopendata/2011/googlecharts.html|http://www.tamberg.org/makeopendata/2011/googlecharts.html]] (Google Chart visualization, JSONP, live)
+{{http://farm7.static.flickr.com/6165/6200379922_72b94177dd.jpg}}
-{{http://farm7.static.flickr.com/6172/6199785693_6d405e0e9b.jpg}}
+===== Visualization =====
+Once the data is available in an open format it's quite easy to consume and display it in  a way that suits the consumer rather than the publisher of the data (the visualizations below contain about 3 lines of code to get the data, compared to the 4 hours above). While the original PDF contains a lot more information, the current temperature is what's most interesting if you're about to decide if you should go for a swim. There is no way for the government to cater to such needs as they might be very special or of concern to a small minority only. Data in an open format empowers such groups to take action themselves and use the data they paid for with tax money in a way that serves them well.
     * [[http://www.tamberg.org/makeopendata/2011/pachudial.html|http://www.tamberg.org/makeopendata/2011/pachudial.html]] (PachuDial visualization, Flash, animated, live)
     * [[http://www.tamberg.org/makeopendata/2011/jquery.html|http://www.tamberg.org/makeopendata/2011/jquery.html]] (Simple visualization, JSONP, live)
+    * [[http://www.tamberg.org/makeopendata/2011/googlecharts.html|http://www.tamberg.org/makeopendata/2011/googlecharts.html]] (Google Chart visualization including comfort zone, JSONP, live)
-{{http://farm7.static.flickr.com/6029/6199785659_5184575d21_m.jpg}}
+{{http://farm7.static.flickr.com/6172/6199785693_6d405e0e9b.jpg}}
-    * [[http://try.yaler.net/~arduino/led|http://try.yaler.net/~arduino/led]] (Arduino LED with a REST interface, LED color set by   HTTP PUT request from LettenLedMashup.exe, sorry for the ads, 504 if offline)
+    * [[http://try.yaler.net/~arduino/led|http://try.yaler.net/~arduino/led]] (Arduino LED with a REST interface, LED color set by      HTTP PUT request from LettenLedMashup.exe, sorry for the ads, 504 if offline)
 {{http://farm7.static.flickr.com/6156/6200369058_06a3074337_o.png}}
+UPDATE, 29.03.2014
+Here's a picture of an OpenLetten widget developed during the Samsung Smart TV Hackathon 2014.
+{{https://farm8.staticflickr.com/7426/13486537313_f17c997812.jpg}}
 ===== Team =====
@@ Line 57: / Line 64: @@
     * [[:user:tamberg|tamberg]]
+===== Source =====
+    * [[https://bitbucket.org/tamberg/makeopendata/src/e504f66b1b56/2011/OpenLetten/HwPdfToPachube.cs|https://bitbucket.org/tamberg/makeopendata/src/e504f66b1b56/2011/OpenLetten/HwPdfToPachube.cs]]
+    * [[https://bitbucket.org/tamberg/makeopendata/src/e504f66b1b56/2011/OpenLetten/LettenLedMashup.cs|https://bitbucket.org/tamberg/makeopendata/src/e504f66b1b56/2011/OpenLetten/LettenLedMashup.cs]]
+  * [[https://bitbucket.org/tamberg/samsungsmarttvhack|https://bitbucket.org/tamberg/samsungsmarttvhack]] (29.03.2014)
 ===== Links =====
@@ Line 67: / Line 81: @@
     * [[https://pachube.com/|https://pachube.com/]] (Sensor data platform based on open standards)
     * [[http://www.instructables.com/id/Arduino-Web-LED/|http://www.instructables.com/id/Arduino-Web-LED/]] (How-to, including source code)
-    * [[http://yaler.org/|http://yaler.org/]] (Access to LED Web service running on Arduino)
+    * [[http://yaler.org/|http://yaler.org/]] (Access to LED Web service running on Arduino; Disclosure: I'm a founder of Yaler)
+    * [[http://makeopendata.ch/forum/discussion/5/physical-mashup-of-a-multicolor-led-and-the-current-water-temperature-at-letten-environmental-data|http://makeopendata.ch/forum/discussion/5/physical-mashup-of-a-multicolor-led-and-the-current-water-temperature-at-letten-environmental-data]] (initial discussion of the idea)
+    * [[http://www.thingiverse.com/thing:148319|http://www.thingiverse.com/thing:148319]] (09.09.2013)
+    * [[https://data.stadt-zuerich.ch/dataset/wassertemperaturen-freibaeder]] (10.05.2016)
+    * [[https://data.stadt-zuerich.ch/dataset/wassertemperaturen-freibaeder/resource/548d1ceb-1daf-4cf9-a14a-92c86326824d]] (10.05.2016)
 Back to project overview: [[http://makeopendata.ch/doku.php?do=search&id=@project|http://makeopendata.ch/doku.php?do=search&id=@project]]
+{{tag>status:demo hardware eco needs:expert}}