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.  All the profit is sent there. Most books are still sold via
  20 Amazon (83 copies), with Ingram second (49) and Lulu (12) and Machette (7) as
  21 minor channels.  Bying directly from Lulu bring the largest cut to
  22 Creative Commons.  The English Edition sold 80 copies so far, the
  23 French 59 copies, and Norwegian only 8 copies.  Nothing impressive,
  24 but nice to see the work we put down is still being appreciated.  The
  25 ebook edition is available for free from
  26 &lt;a href=&quot;https://github.com/petterreinholdtsen/free-culture-lessig&quot;&gt;Github&lt;/a&gt;.&lt;/p&gt;
  27
  28 &lt;table border=&quot;0&quot;&gt;
  29 &lt;tr&gt;&lt;th rowspan=&quot;2&quot; valign=&quot;bottom&quot;&gt;Title / language&lt;/th&gt;
  30 &lt;th colspan=&quot;7&quot;&gt;Quantity&lt;/th&gt;&lt;/tr&gt;
  31 &lt;tr&gt;
  32 &lt;th&gt;2016 jan-jun&lt;/th&gt;
  33 &lt;th&gt;2016 jul-dec&lt;/th&gt;
  34 &lt;th&gt;2017 jan-jun&lt;/th&gt;
  35 &lt;th&gt;2017 jul-dec&lt;/th&gt;
  36 &lt;th&gt;2018 jan-jun&lt;/th&gt;
  37 &lt;th&gt;2018 jul-dec&lt;/th&gt;
  38 &lt;th&gt;2019 jan-may&lt;/th&gt;
  39 &lt;/tr&gt;
  40
  41 &lt;tr&gt;
  42   &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;
  43   &lt;td align=&quot;right&quot;&gt;3&lt;/td&gt;
  44   &lt;td align=&quot;right&quot;&gt;6&lt;/td&gt;
  45   &lt;td align=&quot;right&quot;&gt;19&lt;/td&gt;
  46   &lt;td align=&quot;right&quot;&gt;11&lt;/td&gt;
  47   &lt;td align=&quot;right&quot;&gt;7&lt;/td&gt;
  48   &lt;td align=&quot;right&quot;&gt;6&lt;/td&gt;
  49   &lt;td align=&quot;right&quot;&gt;7&lt;/td&gt;
  50 &lt;/tr&gt;
  51
  52 &lt;tr&gt;
  53   &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;
  54   &lt;td align=&quot;right&quot;&gt;7&lt;/td&gt;
  55   &lt;td align=&quot;right&quot;&gt;1&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;td align=&quot;right&quot;&gt;0&lt;/td&gt;
  61 &lt;/tr&gt;
  62
  63 &lt;tr&gt;
  64   &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;
  65   &lt;td align=&quot;right&quot;&gt;14&lt;/td&gt;
  66   &lt;td align=&quot;right&quot;&gt;27&lt;/td&gt;
  67   &lt;td align=&quot;right&quot;&gt;16&lt;/td&gt;
  68   &lt;td align=&quot;right&quot;&gt;9&lt;/td&gt;
  69   &lt;td align=&quot;right&quot;&gt;3&lt;/td&gt;
  70   &lt;td align=&quot;right&quot;&gt;7&lt;/td&gt;
  71   &lt;td align=&quot;right&quot;&gt;3&lt;/td&gt;
  72 &lt;/tr&gt;
  73
  74 &lt;tr&gt;
  75   &lt;td&gt;Total&lt;/td&gt;
  76   &lt;td align=&quot;right&quot;&gt;24&lt;/td&gt;
  77   &lt;td align=&quot;right&quot;&gt;34&lt;/td&gt;
  78   &lt;td align=&quot;right&quot;&gt;35&lt;/td&gt;
  79   &lt;td align=&quot;right&quot;&gt;20&lt;/td&gt;
  80   &lt;td align=&quot;right&quot;&gt;10&lt;/td&gt;
  81   &lt;td align=&quot;right&quot;&gt;13&lt;/td&gt;
  82   &lt;td align=&quot;right&quot;&gt;10&lt;/td&gt;
  83 &lt;/tr&gt;
  84
  85 &lt;/table&gt;
  86
  87 &lt;p&gt;It is fun to see the French edition being more popular than the
  88 English one.&lt;/p&gt;
  89
  90 &lt;p&gt;If you would like to translate and publish the book in your native
  91 language, I would be happy to help make it happen.  Please get in
  92 touch.&lt;/p&gt;
  93 </description>
  94         </item>
  95
  96         <item>
  97                 <title>Official MIME type &quot;text/vnd.sosi&quot; for SOSI map data</title>
  98                 <link>http://people.skolelinux.org/pere/blog/Official_MIME_type__text_vnd_sosi__for_SOSI_map_data.html</link>
  99                 <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Official_MIME_type__text_vnd_sosi__for_SOSI_map_data.html</guid>
 100                 <pubDate>Tue, 4 Jun 2019 09:20:00 +0200</pubDate>
 101                 <description>&lt;p&gt;Just 15 days ago,
 102 &lt;ahref=&quot;http://people.skolelinux.org/pere/blog/MIME_type__text_vnd_sosi__for_SOSI_map_data.html&quot;&gt;I
 103 mentioned&lt;/a&gt; my submission to IANA to register an official MIME type
 104 for the SOSI vector map format.  This morning, just an hour ago, I was
 105 notified that
 106 &lt;a href=&quot;https://www.iana.org/assignments/media-types/text/vnd.sosi&quot;&gt;the
 107 MIME type &quot;text/vnd.sosi&quot;&lt;/a&gt; is registered for this format.  In
 108 addition to this registration, my
 109 &lt;a href=&quot;https://github.com/file/file/blob/master/magic/Magdir/sosi&quot;&gt;file(1)
 110 patch for a pattern matching rule for SOSI files&lt;/a&gt; has been accepted
 111 into the official source of that program (pending a new release), and
 112 I&#39;ve been told by the team behind
 113 &lt;a href=&quot;https://www.nationalarchives.gov.uk/PRONOM/&quot;&gt;PRONOM&lt;/a&gt; that
 114 the SOSI format will be included in the next release of PRONOM, which
 115 they plan to release this summer around July.&lt;/p&gt;
 116
 117 &lt;p&gt;I am very happy to see all of this fall into place, for use by
 118 &lt;a href=&quot;https://github.com/arkivverket/noark5-tjenestegrensesnitt-standard/&quot;&gt;the
 119 Noark 5 Tjenestegrensesnitt&lt;/a&gt; implementations.&lt;/p&gt;
 120
 121 &lt;p&gt;As usual, if you use Bitcoin and want to show your support of my
 122 activities, please send Bitcoin donations to my address
 123 &lt;b&gt;&lt;a href=&quot;bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b&quot;&gt;15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b&lt;/a&gt;&lt;/b&gt;.&lt;/p&gt;
 124 </description>
 125         </item>
 126
 127         <item>
 128                 <title>The space rover coquine, or how I ended up on the dark side of the moon</title>
 129                 <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>
 130                 <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>
 131                 <pubDate>Sun, 2 Jun 2019 23:55:00 +0200</pubDate>
 132                 <description>&lt;p&gt;A while back a college and friend from Debian and the Skolelinux /
 133 Debian Edu project approached me, asking if I knew someone that might
 134 be interested in helping out with a technology project he was running
 135 as a teacher at &lt;a href=&quot;https://www.ecolefrancodanoise.dk/&quot;&gt;L&#39;école
 136 franco-danoise&lt;/a&gt; - the Danish-French school and kindergarden.  The
 137 kids were building robots, rovers.  The story behind it is to build a
 138 rover for use
 139 &lt;a href=&quot;http://blog.ecolefrancodanoise.dk/first-week-on-the-dark-side&quot;&gt;on
 140 the dark side of the moon&lt;/a&gt;, and remote control it.  As travel cost
 141 was a bit high for the final destination, and they wanted to test the
 142 concept first, he was looking for volunteers to host a rover for the
 143 kids to control in a foreign country.  I ended up volunteering as a
 144 host, and last week the rover arrived.  It took a while to arrive
 145 after &lt;a href=&quot;http://blog.ecolefrancodanoise.dk/model-moms&quot;&gt;it was
 146 built and shipped&lt;/a&gt;, because of customs confusion.  Luckily we were
 147 able fix it quickly with help from my colleges at work.&lt;/p&gt;
 148
 149 &lt;p&gt;This is what it looked like when the rover arrived.  Note the cute
 150 eyes looking up on me from the wrapping&lt;/p&gt;
 151
 152 &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;
 153 &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;
 154 &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;
 155
 156 &lt;p style=&quot;text-align:left&quot;&gt;Once the robot arrived, we needed to track
 157 down batteries and figure out how to build custom firmware for it with
 158 the appropriate wifi settings.  I asked a friend if I could get two
 159 18650 batteries from his pile of Tesla batteries (he had them from the
 160 wrack of a crashed Tesla), so now the rover is running on Tesla
 161 batteries.&lt;/p&gt;
 162
 163 &lt;p&gt;Building
 164 &lt;a href=&quot;https://gitlab.com/ecolefrancodanoise/arduino-efd/&quot;&gt;the rover
 165 firmware&lt;/a&gt; proved a bit harder, as the code did not work out of the
 166 box with the Arduino IDE package in Debian Buster.  I suspect this is
 167 due to a unsolved
 168 &lt;a href=&quot;https://github.com/arduino/Arduino/pull/2703&quot;&gt; license problem
 169 with arduino&lt;/a&gt; blocking Debian from upgrading to the latest version.
 170 In the end we gave up debugging why the IDE failed to find the
 171 required libraries, and ended up using the Arduino Makefile from the
 172 &lt;a href=&quot;https://tracker.debian.org/pkg/arduino-mk&quot;&gt;arduino-mk Debian
 173 package&lt;/a&gt; instead.  Unfortunately the camera library is missing from
 174 the Arduino environment in Debian, so we disabled the camera support
 175 for the first firmware build, to get something up and running.  With
 176 this reduced firmware, the robot could be controlled via the
 177 controller server, driving around and measuring distance using its
 178 internal acoustic sensor.&lt;/p&gt;
 179
 180 &lt;p&gt;Next, With some help from my friend in Denmark, which checked in the
 181 camera library into the gitlab repository for me to use, we were able
 182 to build a new and more complete version of the firmware, and the
 183 robot is now up and running.  This is what the &quot;commander&quot; web page
 184 look like after taking a measurement and a snapshot:&lt;/p&gt;
 185
 186 &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;
 187
 188 &lt;p&gt;If you want to learn more about this project, you can check out the
 189 &lt;a href=&quot;https://hackaday.io/project/164082-the-dark-side-challenge&quot;&gt;The
 190 Dark Side Challenge&lt;/a&gt; Hackaday web pages.&lt;/p&gt;
 191
 192 &lt;p&gt;As usual, if you use Bitcoin and want to show your support of my
 193 activities, please send Bitcoin donations to my address
 194 &lt;b&gt;&lt;a href=&quot;bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b&quot;&gt;15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b&lt;/a&gt;&lt;/b&gt;.&lt;/p&gt;
 195 </description>
 196         </item>
 197
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