blog/archive/2019/06/06.rss

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   4                 <title>Petter Reinholdtsen - Entries from June 2019</title>
   5                 <description>Entries from June 2019</description>
   6                 <link>http://people.skolelinux.org/pere/blog/</link>
   7
   8
   9         <item>
  10                 <title>More sales number for my Free Culture paper editions (2019-edition)</title>
  11                 <link>http://people.skolelinux.org/pere/blog/More_sales_number_for_my_Free_Culture_paper_editions__2019_edition_.html</link>
  12                 <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/More_sales_number_for_my_Free_Culture_paper_editions__2019_edition_.html</guid>
  13                 <pubDate>Tue, 11 Jun 2019 16:05:00 +0200</pubDate>
  14                 <description>&lt;p&gt;The first book I published,
  15 &lt;a href=&quot;http://www.free-culture.cc/&quot;&gt;Free Culture by Lawrence
  16 Lessig&lt;/a&gt;, is still selling a few copies.  Not a lot, but enough to
  17 have contributed slightly over $500 to the &lt;a
  18 href=&quot;https://creativecommons.org/&quot;&gt;Creative Commons Corporation&lt;/a&gt;
  19 so far.  Most books are still sold via Amazon (83), with Ingram second
  20 (49) and Lulu (12) and Machette (7) as minor channels.  Bying directly
  21 from Lulu bring the largest cut to Creative Commons.  The English
  22 Edition sold 80 copies so far, the French 59 copies, and Norwegian
  23 only 8 copies.  Nothing impressive, but nice to see the work we put
  24 down is still being appreciated.  The ebook edition is available for
  25 free from &lt;a href=&quot;https://github.com/petterreinholdtsen/free-culture-lessig&quot;&gt;Github&lt;/a&gt;.&lt;/p&gt;
  26
  27 &lt;table border=&quot;0&quot;&gt;
  28 &lt;tr&gt;&lt;th rowspan=&quot;2&quot; valign=&quot;bottom&quot;&gt;Title / language&lt;/th&gt;
  29 &lt;th colspan=&quot;7&quot;&gt;Quantity&lt;/th&gt;&lt;/tr&gt;
  30 &lt;tr&gt;
  31 &lt;th&gt;2016 jan-jun&lt;/th&gt;
  32 &lt;th&gt;2016 jul-dec&lt;/th&gt;
  33 &lt;th&gt;2017 jan-jun&lt;/th&gt;
  34 &lt;th&gt;2017 jul-dec&lt;/th&gt;
  35 &lt;th&gt;2018 jan-jun&lt;/th&gt;
  36 &lt;th&gt;2018 jul-dec&lt;/th&gt;
  37 &lt;th&gt;2019 jan-may&lt;/th&gt;
  38 &lt;/tr&gt;
  39
  40 &lt;tr&gt;
  41   &lt;td&gt;&lt;a href=&quot;http://www.lulu.com/shop/lawrence-lessig/culture-libre/paperback/product-22645082.html&quot;&gt;Culture Libre / French&lt;/a&gt;&lt;/td&gt;
  42   &lt;td align=&quot;right&quot;&gt;3&lt;/td&gt;
  43   &lt;td align=&quot;right&quot;&gt;6&lt;/td&gt;
  44   &lt;td align=&quot;right&quot;&gt;19&lt;/td&gt;
  45   &lt;td align=&quot;right&quot;&gt;11&lt;/td&gt;
  46   &lt;td align=&quot;right&quot;&gt;7&lt;/td&gt;
  47   &lt;td align=&quot;right&quot;&gt;6&lt;/td&gt;
  48   &lt;td align=&quot;right&quot;&gt;7&lt;/td&gt;
  49 &lt;/tr&gt;
  50
  51 &lt;tr&gt;
  52   &lt;td&gt;&lt;a href=&quot;http://www.lulu.com/shop/lawrence-lessig/fri-kultur/paperback/product-22441576.html&quot;&gt;Fri kultur / Norwegian&lt;/a&gt;&lt;/td&gt;
  53   &lt;td align=&quot;right&quot;&gt;7&lt;/td&gt;
  54   &lt;td align=&quot;right&quot;&gt;1&lt;/td&gt;
  55   &lt;td align=&quot;right&quot;&gt;0&lt;/td&gt;
  56   &lt;td align=&quot;right&quot;&gt;0&lt;/td&gt;
  57   &lt;td align=&quot;right&quot;&gt;0&lt;/td&gt;
  58   &lt;td align=&quot;right&quot;&gt;0&lt;/td&gt;
  59   &lt;td align=&quot;right&quot;&gt;0&lt;/td&gt;
  60 &lt;/tr&gt;
  61
  62 &lt;tr&gt;
  63   &lt;td&gt;&lt;a href=&quot;http://www.lulu.com/shop/lawrence-lessig/free-culture/paperback/product-22440520.html&quot;&gt;Free Culture / English&lt;/a&gt;&lt;/td&gt;
  64   &lt;td align=&quot;right&quot;&gt;14&lt;/td&gt;
  65   &lt;td align=&quot;right&quot;&gt;27&lt;/td&gt;
  66   &lt;td align=&quot;right&quot;&gt;16&lt;/td&gt;
  67   &lt;td align=&quot;right&quot;&gt;9&lt;/td&gt;
  68   &lt;td align=&quot;right&quot;&gt;3&lt;/td&gt;
  69   &lt;td align=&quot;right&quot;&gt;7&lt;/td&gt;
  70   &lt;td align=&quot;right&quot;&gt;3&lt;/td&gt;
  71 &lt;/tr&gt;
  72
  73 &lt;tr&gt;
  74   &lt;td&gt;Total&lt;/td&gt;
  75   &lt;td align=&quot;right&quot;&gt;24&lt;/td&gt;
  76   &lt;td align=&quot;right&quot;&gt;34&lt;/td&gt;
  77   &lt;td align=&quot;right&quot;&gt;35&lt;/td&gt;
  78   &lt;td align=&quot;right&quot;&gt;20&lt;/td&gt;
  79   &lt;td align=&quot;right&quot;&gt;10&lt;/td&gt;
  80   &lt;td align=&quot;right&quot;&gt;13&lt;/td&gt;
  81   &lt;td align=&quot;right&quot;&gt;10&lt;/td&gt;
  82 &lt;/tr&gt;
  83
  84 &lt;/table&gt;
  85
  86 &lt;p&gt;It is fun to see the French edition being more popular than the
  87 English one.&lt;/p&gt;
  88
  89 &lt;p&gt;If you would like to translate and publish the book in your native
  90 language, I would be happy to help make it happen.  Please get in
  91 touch.&lt;/p&gt;
  92 </description>
  93         </item>
  94
  95         <item>
  96                 <title>Official MIME type &quot;text/vnd.sosi&quot; for SOSI map data</title>
  97                 <link>http://people.skolelinux.org/pere/blog/Official_MIME_type__text_vnd_sosi__for_SOSI_map_data.html</link>
  98                 <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Official_MIME_type__text_vnd_sosi__for_SOSI_map_data.html</guid>
  99                 <pubDate>Tue, 4 Jun 2019 09:20:00 +0200</pubDate>
 100                 <description>&lt;p&gt;Just 15 days ago,
 101 &lt;ahref=&quot;http://people.skolelinux.org/pere/blog/MIME_type__text_vnd_sosi__for_SOSI_map_data.html&quot;&gt;I
 102 mentioned&lt;/a&gt; my submission to IANA to register an official MIME type
 103 for the SOSI vector map format.  This morning, just an hour ago, I was
 104 notified that
 105 &lt;a href=&quot;https://www.iana.org/assignments/media-types/text/vnd.sosi&quot;&gt;the
 106 MIME type &quot;text/vnd.sosi&quot;&lt;/a&gt; is registered for this format.  In
 107 addition to this registration, my
 108 &lt;a href=&quot;https://github.com/file/file/blob/master/magic/Magdir/sosi&quot;&gt;file(1)
 109 patch for a pattern matching rule for SOSI files&lt;/a&gt; has been accepted
 110 into the official source of that program (pending a new release), and
 111 I&#39;ve been told by the team behind
 112 &lt;a href=&quot;https://www.nationalarchives.gov.uk/PRONOM/&quot;&gt;PRONOM&lt;/a&gt; that
 113 the SOSI format will be included in the next release of PRONOM, which
 114 they plan to release this summer around July.&lt;/p&gt;
 115
 116 &lt;p&gt;I am very happy to see all of this fall into place, for use by
 117 &lt;a href=&quot;https://github.com/arkivverket/noark5-tjenestegrensesnitt-standard/&quot;&gt;the
 118 Noark 5 Tjenestegrensesnitt&lt;/a&gt; implementations.&lt;/p&gt;
 119
 120 &lt;p&gt;As usual, if you use Bitcoin and want to show your support of my
 121 activities, please send Bitcoin donations to my address
 122 &lt;b&gt;&lt;a href=&quot;bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b&quot;&gt;15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b&lt;/a&gt;&lt;/b&gt;.&lt;/p&gt;
 123 </description>
 124         </item>
 125
 126         <item>
 127                 <title>The space rover coquine, or how I ended up on the dark side of the moon</title>
 128                 <link>http://people.skolelinux.org/pere/blog/The_space_rover_coquine__or_how_I_ended_up_on_the_dark_side_of_the_moon.html</link>
 129                 <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/The_space_rover_coquine__or_how_I_ended_up_on_the_dark_side_of_the_moon.html</guid>
 130                 <pubDate>Sun, 2 Jun 2019 23:55:00 +0200</pubDate>
 131                 <description>&lt;p&gt;A while back a college and friend from Debian and the Skolelinux /
 132 Debian Edu project approached me, asking if I knew someone that might
 133 be interested in helping out with a technology project he was running
 134 as a teacher at &lt;a href=&quot;https://www.ecolefrancodanoise.dk/&quot;&gt;L&#39;école
 135 franco-danoise&lt;/a&gt; - the Danish-French school and kindergarden.  The
 136 kids were building robots, rovers.  The story behind it is to build a
 137 rover for use
 138 &lt;a href=&quot;http://blog.ecolefrancodanoise.dk/first-week-on-the-dark-side&quot;&gt;on
 139 the dark side of the moon&lt;/a&gt;, and remote control it.  As travel cost
 140 was a bit high for the final destination, and they wanted to test the
 141 concept first, he was looking for volunteers to host a rover for the
 142 kids to control in a foreign country.  I ended up volunteering as a
 143 host, and last week the rover arrived.  It took a while to arrive
 144 after &lt;a href=&quot;http://blog.ecolefrancodanoise.dk/model-moms&quot;&gt;it was
 145 built and shipped&lt;/a&gt;, because of customs confusion.  Luckily we were
 146 able fix it quickly with help from my colleges at work.&lt;/p&gt;
 147
 148 &lt;p&gt;This is what it looked like when the rover arrived.  Note the cute
 149 eyes looking up on me from the wrapping&lt;/p&gt;
 150
 151 &lt;img src=&quot;http://people.skolelinux.org/pere/blog/images/2019-06-02-robot-dark-side-of-moon-esken-med-det-rare-i.jpeg&quot; width=&quot;32%&quot; style=&quot;clear:left&quot;/&gt;
 152 &lt;img src=&quot;http://people.skolelinux.org/pere/blog/images/2019-06-02-robot-dark-side-of-moon-den-ser-meg.jpeg&quot; width=&quot;32%&quot; style=&quot;clear:left&quot;/&gt;
 153 &lt;img src=&quot;http://people.skolelinux.org/pere/blog/images/2019-06-02-robot-dark-side-of-moon-en-skrue-loes.jpeg&quot; width=&quot;32%&quot; style=&quot;clear:left&quot;/&gt;
 154
 155 &lt;p style=&quot;text-align:left&quot;&gt;Once the robot arrived, we needed to track
 156 down batteries and figure out how to build custom firmware for it with
 157 the appropriate wifi settings.  I asked a friend if I could get two
 158 18650 batteries from his pile of Tesla batteries (he had them from the
 159 wrack of a crashed Tesla), so now the rover is running on Tesla
 160 batteries.&lt;/p&gt;
 161
 162 &lt;p&gt;Building
 163 &lt;a href=&quot;https://gitlab.com/ecolefrancodanoise/arduino-efd/&quot;&gt;the rover
 164 firmware&lt;/a&gt; proved a bit harder, as the code did not work out of the
 165 box with the Arduino IDE package in Debian Buster.  I suspect this is
 166 due to a unsolved
 167 &lt;a href=&quot;https://github.com/arduino/Arduino/pull/2703&quot;&gt; license problem
 168 with arduino&lt;/a&gt; blocking Debian from upgrading to the latest version.
 169 In the end we gave up debugging why the IDE failed to find the
 170 required libraries, and ended up using the Arduino Makefile from the
 171 &lt;a href=&quot;https://tracker.debian.org/pkg/arduino-mk&quot;&gt;arduino-mk Debian
 172 package&lt;/a&gt; instead.  Unfortunately the camera library is missing from
 173 the Arduino environment in Debian, so we disabled the camera support
 174 for the first firmware build, to get something up and running.  With
 175 this reduced firmware, the robot could be controlled via the
 176 controller server, driving around and measuring distance using its
 177 internal acoustic sensor.&lt;/p&gt;
 178
 179 &lt;p&gt;Next, With some help from my friend in Denmark, which checked in the
 180 camera library into the gitlab repository for me to use, we were able
 181 to build a new and more complete version of the firmware, and the
 182 robot is now up and running.  This is what the &quot;commander&quot; web page
 183 look like after taking a measurement and a snapshot:&lt;/p&gt;
 184
 185 &lt;img src=&quot;http://people.skolelinux.org/pere/blog/images/2019-06-02-robot-dark-side-of-moon-commander.png&quot; width=&quot;40%&quot; border=&quot;1&quot; align=&quot;center&quot;/&gt;
 186
 187 &lt;p&gt;If you want to learn more about this project, you can check out the
 188 &lt;a href=&quot;https://hackaday.io/project/164082-the-dark-side-challenge&quot;&gt;The
 189 Dark Side Challenge&lt;/a&gt; Hackaday web pages.&lt;/p&gt;
 190
 191 &lt;p&gt;As usual, if you use Bitcoin and want to show your support of my
 192 activities, please send Bitcoin donations to my address
 193 &lt;b&gt;&lt;a href=&quot;bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b&quot;&gt;15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b&lt;/a&gt;&lt;/b&gt;.&lt;/p&gt;
 194 </description>
 195         </item>
 196
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