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  13  <h1>
  14      <a href="http://people.skolelinux.org/pere/blog/">Petter Reinholdtsen</a>
  15
  16  </h1>
  17
  18 </div>
  19
  20
  21     <h3>Entries tagged "lego".</h3>
  22
  23     <div class="entry">
  24       <div class="title">
  25         <a href="http://people.skolelinux.org/pere/blog/My_own_self_balancing_Lego_Segway.html">My own self balancing Lego Segway</a>
  26       </div>
  27       <div class="date">
  28          4th November 2016
  29       </div>
  30       <div class="body">
  31         <p>A while back I received a Gyro sensor for the NXT
  32 <a href="mindstorms.lego.com">Mindstorms</a> controller as a birthday
  33 present.  It had been on my wishlist for a while, because I wanted to
  34 build a Segway like balancing lego robot.  I had already built
  35 <a href="http://www.nxtprograms.com/NXT2/segway/">a simple balancing
  36 robot</a> with the kids, using the light/color sensor included in the
  37 NXT kit as the balance sensor, but it was not working very well.  It
  38 could balance for a while, but was very sensitive to the light
  39 condition in the room and the reflective properties of the surface and
  40 would fall over after a short while.  I wanted something more robust,
  41 and had
  42 <a href="https://www.hitechnic.com/cgi-bin/commerce.cgi?preadd=action&key=NGY1044">the
  43 gyro sensor from HiTechnic</a> I believed would solve it on my
  44 wishlist for some years before it suddenly showed up as a gift from my
  45 loved ones. :)</p>
  46
  47 <p>Unfortunately I have not had time to sit down and play with it
  48 since then.  But that changed some days ago, when I was searching for
  49 lego segway information and came across a recipe from HiTechnic for
  50 building
  51 <a href="http://www.hitechnic.com/blog/gyro-sensor/htway/">the
  52 HTWay</a>, a segway like balancing robot.  Build instructions and
  53 <a href="https://www.hitechnic.com/upload/786-HTWayC.nxc">source
  54 code</a> was included, so it was just a question of putting it all
  55 together.  And thanks to the great work of many Debian developers, the
  56 compiler needed to build the source for the NXT is already included in
  57 Debian, so I was read to go in less than an hour.  The resulting robot
  58 do not look very impressive in its simplicity:</p>
  59
  60 <p align="center"><img width="70%" src="http://people.skolelinux.org/pere/blog/images/2016-11-04-lego-htway-robot.jpeg"></p>
  61
  62 <p>Because I lack the infrared sensor used to control the robot in the
  63 design from HiTechnic, I had to comment out the last task
  64 (taskControl).  I simply placed /* and */ around it get the program
  65 working without that sensor present.  Now it balances just fine until
  66 the battery status run low:</p>
  67
  68 <p align="center"><video width="70%" controls="true">
  69    <source src="http://people.skolelinux.org/pere/blog/images/2016-11-04-lego-htway-balancing.ogv" type="video/ogg">
  70 </video></p>
  71
  72 <p>Now we would like to teach it how to follow a line and take remote
  73 control instructions using the included Bluetooth receiver in the NXT.</p>
  74
  75 <p>If you, like me, love LEGO and want to make sure we find the tools
  76 they need to work with LEGO in Debian and all our derivative
  77 distributions like Ubuntu, check out
  78 <a href="http://wiki.debian.org/LegoDesigners">the LEGO designers
  79 project page</a> and join the Debian LEGO team.  Personally I own a
  80 RCX and NXT controller (no EV3), and would like to make sure the
  81 Debian tools needed to program the systems I own work as they
  82 should.</p>
  83
  84       </div>
  85       <div class="tags">
  86
  87
  88         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/debian">debian</a>, <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/lego">lego</a>, <a href="http://people.skolelinux.org/pere/blog/tags/robot">robot</a>.
  89
  90
  91       </div>
  92     </div>
  93     <div class="padding"></div>
  94
  95     <div class="entry">
  96       <div class="title">
  97         <a href="http://people.skolelinux.org/pere/blog/Isenkram__Appstream_and_udev_make_life_as_a_LEGO_builder_easier.html">Isenkram, Appstream and udev make life as a LEGO builder easier</a>
  98       </div>
  99       <div class="date">
 100          7th October 2016
 101       </div>
 102       <div class="body">
 103         <p><a href="http://packages.qa.debian.org/isenkram">The Isenkram
 104 system</a> provide a practical and easy way to figure out which
 105 packages support the hardware in a given machine.  The command line
 106 tool <tt>isenkram-lookup</tt> and the tasksel options provide a
 107 convenient way to list and install packages relevant for the current
 108 hardware during system installation, both user space packages and
 109 firmware packages. The GUI background daemon on the other hand provide
 110 a pop-up proposing to install packages when a new dongle is inserted
 111 while using the computer.  For example, if you plug in a smart card
 112 reader, the system will ask if you want to install <tt>pcscd</tt> if
 113 that package isn't already installed, and if you plug in a USB video
 114 camera the system will ask if you want to install <tt>cheese</tt> if
 115 cheese is currently missing.  This already work just fine.</p>
 116
 117 <p>But Isenkram depend on a database mapping from hardware IDs to
 118 package names.  When I started no such database existed in Debian, so
 119 I made my own data set and included it with the isenkram package and
 120 made isenkram fetch the latest version of this database from git using
 121 http.  This way the isenkram users would get updated package proposals
 122 as soon as I learned more about hardware related packages.</p>
 123
 124 <p>The hardware is identified using modalias strings.  The modalias
 125 design is from the Linux kernel where most hardware descriptors are
 126 made available as a strings that can be matched using filename style
 127 globbing.  It handle USB, PCI, DMI and a lot of other hardware related
 128 identifiers.</p>
 129
 130 <p>The downside to the Isenkram specific database is that there is no
 131 information about relevant distribution / Debian version, making
 132 isenkram propose obsolete packages too.  But along came AppStream, a
 133 cross distribution mechanism to store and collect metadata about
 134 software packages.  When I heard about the proposal, I contacted the
 135 people involved and suggested to add a hardware matching rule using
 136 modalias strings in the specification, to be able to use AppStream for
 137 mapping hardware to packages.  This idea was accepted and AppStream is
 138 now a great way for a package to announce the hardware it support in a
 139 distribution neutral way.  I wrote
 140 <a href="http://people.skolelinux.org/pere/blog/Using_appstream_with_isenkram_to_install_hardware_related_packages_in_Debian.html">a
 141 recipe on how to add such meta-information</a> in a blog post last
 142 December.  If you have a hardware related package in Debian, please
 143 announce the relevant hardware IDs using AppStream.</p>
 144
 145 <p>In Debian, almost all packages that can talk to a LEGO Mindestorms
 146 RCX or NXT unit, announce this support using AppStream.  The effect is
 147 that when you insert such LEGO robot controller into your Debian
 148 machine, Isenkram will propose to install the packages needed to get
 149 it working.  The intention is that this should allow the local user to
 150 start programming his robot controller right away without having to
 151 guess what packages to use or which permissions to fix.</p>
 152
 153 <p>But when I sat down with my son the other day to program our NXT
 154 unit using his Debian Stretch computer, I discovered something
 155 annoying.  The local console user (ie my son) did not get access to
 156 the USB device for programming the unit.  This used to work, but no
 157 longer in Jessie and Stretch.  After some investigation and asking
 158 around on #debian-devel, I discovered that this was because udev had
 159 changed the mechanism used to grant access to local devices.  The
 160 ConsoleKit mechanism from <tt>/lib/udev/rules.d/70-udev-acl.rules</tt>
 161 no longer applied, because LDAP users no longer was added to the
 162 plugdev group during login.  Michael Biebl told me that this method
 163 was obsolete and the new method used ACLs instead.  This was good
 164 news, as the plugdev mechanism is a mess when using a remote user
 165 directory like LDAP.  Using ACLs would make sure a user lost device
 166 access when she logged out, even if the user left behind a background
 167 process which would retain the plugdev membership with the ConsoleKit
 168 setup.  Armed with this knowledge I moved on to fix the access problem
 169 for the LEGO Mindstorms related packages.</p>
 170
 171 <p>The new system uses a udev tag, 'uaccess'.  It can either be
 172 applied directly for a device, or is applied in
 173 /lib/udev/rules.d/70-uaccess.rules for classes of devices.  As the
 174 LEGO Mindstorms udev rules did not have a class, I decided to add the
 175 tag directly in the udev rules files included in the packages.  Here
 176 is one example.  For the nqc C compiler for the RCX, the
 177 <tt>/lib/udev/rules.d/60-nqc.rules</tt> file now look like this:
 178
 179 <p><pre>
 180 SUBSYSTEM=="usb", ACTION=="add", ATTR{idVendor}=="0694", ATTR{idProduct}=="0001", \
 181     SYMLINK+="rcx-%k", TAG+="uaccess"
 182 </pre></p>
 183
 184 <p>The key part is the 'TAG+="uaccess"' at the end.  I suspect all
 185 packages using plugdev in their /lib/udev/rules.d/ files should be
 186 changed to use this tag (either directly or indirectly via
 187 <tt>70-uaccess.rules</tt>).  Perhaps a lintian check should be created
 188 to detect this?</p>
 189
 190 <p>I've been unable to find good documentation on the uaccess feature.
 191 It is unclear to me if the uaccess tag is an internal implementation
 192 detail like the udev-acl tag used by
 193 <tt>/lib/udev/rules.d/70-udev-acl.rules</tt>.  If it is, I guess the
 194 indirect method is the preferred way.  Michael
 195 <a href="https://github.com/systemd/systemd/issues/4288">asked for more
 196 documentation from the systemd project</a> and I hope it will make
 197 this clearer.  For now I use the generic classes when they exist and
 198 is already handled by <tt>70-uaccess.rules</tt>, and add the tag
 199 directly if no such class exist.</p>
 200
 201 <p>To learn more about the isenkram system, please check out
 202 <a href="http://people.skolelinux.org/pere/blog/tags/isenkram/">my
 203 blog posts tagged isenkram</a>.</p>
 204
 205 <p>To help out making life for LEGO constructors in Debian easier,
 206 please join us on our IRC channel
 207 <a href="irc://irc.debian.org/%23debian-lego">#debian-lego</a> and join
 208 the <a href="https://alioth.debian.org/projects/debian-lego/">Debian
 209 LEGO team</a> in the Alioth project we created yesterday.  A mailing
 210 list is not yet created, but we are working on it. :)</p>
 211
 212 <p>As usual, if you use Bitcoin and want to show your support of my
 213 activities, please send Bitcoin donations to my address
 214 <b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
 215
 216       </div>
 217       <div class="tags">
 218
 219
 220         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/debian">debian</a>, <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/isenkram">isenkram</a>, <a href="http://people.skolelinux.org/pere/blog/tags/lego">lego</a>.
 221
 222
 223       </div>
 224     </div>
 225     <div class="padding"></div>
 226
 227     <div class="entry">
 228       <div class="title">
 229         <a href="http://people.skolelinux.org/pere/blog/Debian__the_Linux_distribution_of_choice_for_LEGO_designers_.html">Debian, the Linux distribution of choice for LEGO designers?</a>
 230       </div>
 231       <div class="date">
 232         11th May 2013
 233       </div>
 234       <div class="body">
 235         <P>In January,
 236 <a href="http://people.skolelinux.org/pere/blog/New_IRC_channel_for_LEGO_designers_using_Debian.html">I
 237 announced a</a> new <a href="irc://irc.debian.org/%23debian-lego">IRC
 238 channel #debian-lego</a>, for those of us in the Debian and Linux
 239 community interested in <a href="http://www.lego.com/">LEGO</a>, the
 240 marvellous construction system from Denmark.  We also created
 241 <a href="http://wiki.debian.org/LegoDesigners">a wiki page</a> to have
 242 a place to take notes and write down our plans and hopes.  And several
 243 people showed up to help.  I was very happy to see the effect of my
 244 call.  Since the small start, we have a debtags tag
 245 <a href="http://debtags.debian.net/search/bytag?wl=hardware::hobby:lego">hardware::hobby:lego</a>
 246 tag for LEGO related packages, and now count 10 packages related to
 247 LEGO and <a href="http://mindstorms.lego.com/">Mindstorms</a>:</p>
 248
 249 <p><table>
 250 <tr><td><a href="http://packages.qa.debian.org/brickos">brickos</a></td><td>alternative OS for LEGO Mindstorms RCX. Supports development in C/C++</td></tr>
 251 <tr><td><a href="http://packages.qa.debian.org/leocad">leocad</a></td><td>virtual brick CAD software</td></tr>
 252 <tr><td><a href="http://packages.qa.debian.org/libnxt">libnxt</a></td><td>utility library for talking to the LEGO Mindstorms NX</td></tr>
 253 <tr><td><a href="http://packages.qa.debian.org/lnpd">lnpd</a></td><td>daemon for LNP communication with BrickOS</td></tr>
 254 <tr><td><a href="http://packages.qa.debian.org/nbc">nbc</a></td><td>compiler for LEGO Mindstorms NXT bricks</td></tr>
 255 <tr><td><a href="http://packages.qa.debian.org/nqc">nqc</a></td><td>Not Quite C compiler for LEGO Mindstorms RCX</td></tr>
 256 <tr><td><a href="http://packages.qa.debian.org/python-nxt">python-nxt</a></td><td>python driver/interface/wrapper for the Lego Mindstorms NXT robot</td></tr>
 257 <tr><td><a href="http://packages.qa.debian.org/python-nxt-filer">python-nxt-filer</a></td><td>simple GUI to manage files on a LEGO Mindstorms NXT</td></tr>
 258 <tr><td><a href="http://packages.qa.debian.org/scratch">scratch</a></td><td>easy to use programming environment for ages 8 and up</td></tr>
 259 <tr><td><a href="http://packages.qa.debian.org/t2n">t2n</a></td><td>simple command-line tool for Lego NXT</td></tr>
 260 </table></p>
 261
 262 <p>Some of these are available in Wheezy, and all but one are
 263 currently available in Jessie/testing.  leocad is so far only
 264 available in experimental.</p>
 265
 266 <p>If you care about LEGO in Debian, please join us on IRC and help
 267 adding the rest of the great free software tools available on Linux
 268 for LEGO designers.</p>
 269
 270       </div>
 271       <div class="tags">
 272
 273
 274         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/debian">debian</a>, <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/lego">lego</a>, <a href="http://people.skolelinux.org/pere/blog/tags/robot">robot</a>.
 275
 276
 277       </div>
 278     </div>
 279     <div class="padding"></div>
 280
 281     <div class="entry">
 282       <div class="title">
 283         <a href="http://people.skolelinux.org/pere/blog/New_IRC_channel_for_LEGO_designers_using_Debian.html">New IRC channel for LEGO designers using Debian</a>
 284       </div>
 285       <div class="date">
 286          2nd January 2013
 287       </div>
 288       <div class="body">
 289         <p>During Christmas, I have worked a bit on the Debian support for
 290 <a href="http://mindstorms.lego.com/en-us/Default.aspx">LEGO Mindstorm
 291 NXT</a>.  My son and I have played a bit with my NXT set, and I
 292 discovered I had to build all the tools myself because none were
 293 already in Debian Squeeze.  If Debian support for LEGO is something
 294 you care about, please join me on the IRC channel
 295 <a href="irc://irc.debian.org/%23debian-lego">#debian-lego</a> (server
 296 irc.debian.org).  There is a lot that could be done to improve the
 297 Debian support for LEGO designers.  For example both CAD software
 298 and Mindstorm compilers are missing. :)</p>
 299
 300 <p>Update 2012-01-03: A
 301 <a href="http://wiki.debian.org/LegoDesigners">project page</a>
 302 including links to Lego related packages is now available.</p>
 303
 304       </div>
 305       <div class="tags">
 306
 307
 308         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/debian">debian</a>, <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/lego">lego</a>, <a href="http://people.skolelinux.org/pere/blog/tags/robot">robot</a>.
 309
 310
 311       </div>
 312     </div>
 313     <div class="padding"></div>
 314
 315     <p style="text-align: right;"><a href="lego.rss"><img src="http://people.skolelinux.org/pere/blog/xml.gif" alt="RSS Feed" width="36" height="14" /></a></p>
 316     <div id="sidebar">
 317
 318
 319
 320 <h2>Archive</h2>
 321 <ul>
 322
 323 <li>2017
 324 <ul>
 325
 326 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/01/">January (4)</a></li>
 327
 328 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/02/">February (3)</a></li>
 329
 330 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/03/">March (5)</a></li>
 331
 332 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/04/">April (2)</a></li>
 333
 334 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/06/">June (5)</a></li>
 335
 336 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/07/">July (1)</a></li>
 337
 338 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/08/">August (1)</a></li>
 339
 340 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/09/">September (3)</a></li>
 341
 342 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/10/">October (5)</a></li>
 343
 344 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/11/">November (2)</a></li>
 345
 346 </ul></li>
 347
 348 <li>2016
 349 <ul>
 350
 351 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/01/">January (3)</a></li>
 352
 353 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/02/">February (2)</a></li>
 354
 355 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/03/">March (3)</a></li>
 356
 357 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/04/">April (8)</a></li>
 358
 359 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/05/">May (8)</a></li>
 360
 361 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/06/">June (2)</a></li>
 362
 363 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/07/">July (2)</a></li>
 364
 365 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/08/">August (5)</a></li>
 366
 367 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/09/">September (2)</a></li>
 368
 369 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/10/">October (3)</a></li>
 370
 371 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/11/">November (8)</a></li>
 372
 373 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/12/">December (5)</a></li>
 374
 375 </ul></li>
 376
 377 <li>2015
 378 <ul>
 379
 380 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/01/">January (7)</a></li>
 381
 382 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/02/">February (6)</a></li>
 383
 384 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/03/">March (1)</a></li>
 385
 386 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/04/">April (4)</a></li>
 387
 388 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/05/">May (3)</a></li>
 389
 390 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/06/">June (4)</a></li>
 391
 392 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/07/">July (6)</a></li>
 393
 394 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/08/">August (2)</a></li>
 395
 396 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/09/">September (2)</a></li>
 397
 398 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/10/">October (9)</a></li>
 399
 400 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/11/">November (6)</a></li>
 401
 402 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/12/">December (3)</a></li>
 403
 404 </ul></li>
 405
 406 <li>2014
 407 <ul>
 408
 409 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/01/">January (2)</a></li>
 410
 411 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/02/">February (3)</a></li>
 412
 413 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/03/">March (8)</a></li>
 414
 415 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/04/">April (7)</a></li>
 416
 417 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/05/">May (1)</a></li>
 418
 419 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/06/">June (2)</a></li>
 420
 421 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/07/">July (2)</a></li>
 422
 423 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/08/">August (2)</a></li>
 424
 425 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/09/">September (5)</a></li>
 426
 427 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/10/">October (6)</a></li>
 428
 429 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/11/">November (3)</a></li>
 430
 431 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/12/">December (5)</a></li>
 432
 433 </ul></li>
 434
 435 <li>2013
 436 <ul>
 437
 438 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/01/">January (11)</a></li>
 439
 440 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/02/">February (9)</a></li>
 441
 442 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/03/">March (9)</a></li>
 443
 444 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/04/">April (6)</a></li>
 445
 446 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/05/">May (9)</a></li>
 447
 448 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/06/">June (10)</a></li>
 449
 450 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/07/">July (7)</a></li>
 451
 452 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/08/">August (3)</a></li>
 453
 454 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/09/">September (5)</a></li>
 455
 456 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/10/">October (7)</a></li>
 457
 458 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/11/">November (9)</a></li>
 459
 460 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/12/">December (3)</a></li>
 461
 462 </ul></li>
 463
 464 <li>2012
 465 <ul>
 466
 467 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/01/">January (7)</a></li>
 468
 469 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/02/">February (10)</a></li>
 470
 471 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/03/">March (17)</a></li>
 472
 473 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/04/">April (12)</a></li>
 474
 475 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/05/">May (12)</a></li>
 476
 477 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/06/">June (20)</a></li>
 478
 479 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/07/">July (17)</a></li>
 480
 481 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/08/">August (6)</a></li>
 482
 483 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/09/">September (9)</a></li>
 484
 485 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/10/">October (17)</a></li>
 486
 487 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/11/">November (10)</a></li>
 488
 489 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/12/">December (7)</a></li>
 490
 491 </ul></li>
 492
 493 <li>2011
 494 <ul>
 495
 496 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/01/">January (16)</a></li>
 497
 498 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/02/">February (6)</a></li>
 499
 500 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/03/">March (6)</a></li>
 501
 502 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/04/">April (7)</a></li>
 503
 504 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/05/">May (3)</a></li>
 505
 506 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/06/">June (2)</a></li>
 507
 508 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/07/">July (7)</a></li>
 509
 510 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/08/">August (6)</a></li>
 511
 512 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/09/">September (4)</a></li>
 513
 514 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/10/">October (2)</a></li>
 515
 516 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/11/">November (3)</a></li>
 517
 518 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/12/">December (1)</a></li>
 519
 520 </ul></li>
 521
 522 <li>2010
 523 <ul>
 524
 525 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/01/">January (2)</a></li>
 526
 527 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/02/">February (1)</a></li>
 528
 529 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/03/">March (3)</a></li>
 530
 531 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/04/">April (3)</a></li>
 532
 533 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/05/">May (9)</a></li>
 534
 535 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/06/">June (14)</a></li>
 536
 537 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/07/">July (12)</a></li>
 538
 539 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/08/">August (13)</a></li>
 540
 541 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/09/">September (7)</a></li>
 542
 543 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/10/">October (9)</a></li>
 544
 545 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/11/">November (13)</a></li>
 546
 547 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/12/">December (12)</a></li>
 548
 549 </ul></li>
 550
 551 <li>2009
 552 <ul>
 553
 554 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/01/">January (8)</a></li>
 555
 556 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/02/">February (8)</a></li>
 557
 558 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/03/">March (12)</a></li>
 559
 560 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/04/">April (10)</a></li>
 561
 562 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/05/">May (9)</a></li>
 563
 564 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/06/">June (3)</a></li>
 565
 566 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/07/">July (4)</a></li>
 567
 568 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/08/">August (3)</a></li>
 569
 570 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/09/">September (1)</a></li>
 571
 572 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/10/">October (2)</a></li>
 573
 574 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/11/">November (3)</a></li>
 575
 576 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/12/">December (3)</a></li>
 577
 578 </ul></li>
 579
 580 <li>2008
 581 <ul>
 582
 583 <li><a href="http://people.skolelinux.org/pere/blog/archive/2008/11/">November (5)</a></li>
 584
 585 <li><a href="http://people.skolelinux.org/pere/blog/archive/2008/12/">December (7)</a></li>
 586
 587 </ul></li>
 588
 589 </ul>
 590
 591
 592
 593 <h2>Tags</h2>
 594 <ul>
 595
 596  <li><a href="http://people.skolelinux.org/pere/blog/tags/3d-printer">3d-printer (14)</a></li>
 597
 598  <li><a href="http://people.skolelinux.org/pere/blog/tags/amiga">amiga (1)</a></li>
 599
 600  <li><a href="http://people.skolelinux.org/pere/blog/tags/aros">aros (1)</a></li>
 601
 602  <li><a href="http://people.skolelinux.org/pere/blog/tags/bankid">bankid (4)</a></li>
 603
 604  <li><a href="http://people.skolelinux.org/pere/blog/tags/bitcoin">bitcoin (9)</a></li>
 605
 606  <li><a href="http://people.skolelinux.org/pere/blog/tags/bootsystem">bootsystem (16)</a></li>
 607
 608  <li><a href="http://people.skolelinux.org/pere/blog/tags/bsa">bsa (2)</a></li>
 609
 610  <li><a href="http://people.skolelinux.org/pere/blog/tags/chrpath">chrpath (2)</a></li>
 611
 612  <li><a href="http://people.skolelinux.org/pere/blog/tags/debian">debian (154)</a></li>
 613
 614  <li><a href="http://people.skolelinux.org/pere/blog/tags/debian edu">debian edu (158)</a></li>
 615
 616  <li><a href="http://people.skolelinux.org/pere/blog/tags/debian-handbook">debian-handbook (4)</a></li>
 617
 618  <li><a href="http://people.skolelinux.org/pere/blog/tags/digistan">digistan (10)</a></li>
 619
 620  <li><a href="http://people.skolelinux.org/pere/blog/tags/dld">dld (17)</a></li>
 621
 622  <li><a href="http://people.skolelinux.org/pere/blog/tags/docbook">docbook (24)</a></li>
 623
 624  <li><a href="http://people.skolelinux.org/pere/blog/tags/drivstoffpriser">drivstoffpriser (4)</a></li>
 625
 626  <li><a href="http://people.skolelinux.org/pere/blog/tags/english">english (359)</a></li>
 627
 628  <li><a href="http://people.skolelinux.org/pere/blog/tags/fiksgatami">fiksgatami (23)</a></li>
 629
 630  <li><a href="http://people.skolelinux.org/pere/blog/tags/fildeling">fildeling (12)</a></li>
 631
 632  <li><a href="http://people.skolelinux.org/pere/blog/tags/freeculture">freeculture (30)</a></li>
 633
 634  <li><a href="http://people.skolelinux.org/pere/blog/tags/freedombox">freedombox (9)</a></li>
 635
 636  <li><a href="http://people.skolelinux.org/pere/blog/tags/frikanalen">frikanalen (18)</a></li>
 637
 638  <li><a href="http://people.skolelinux.org/pere/blog/tags/h264">h264 (20)</a></li>
 639
 640  <li><a href="http://people.skolelinux.org/pere/blog/tags/intervju">intervju (42)</a></li>
 641
 642  <li><a href="http://people.skolelinux.org/pere/blog/tags/isenkram">isenkram (15)</a></li>
 643
 644  <li><a href="http://people.skolelinux.org/pere/blog/tags/kart">kart (20)</a></li>
 645
 646  <li><a href="http://people.skolelinux.org/pere/blog/tags/ldap">ldap (9)</a></li>
 647
 648  <li><a href="http://people.skolelinux.org/pere/blog/tags/lego">lego (4)</a></li>
 649
 650  <li><a href="http://people.skolelinux.org/pere/blog/tags/lenker">lenker (8)</a></li>
 651
 652  <li><a href="http://people.skolelinux.org/pere/blog/tags/lsdvd">lsdvd (2)</a></li>
 653
 654  <li><a href="http://people.skolelinux.org/pere/blog/tags/ltsp">ltsp (1)</a></li>
 655
 656  <li><a href="http://people.skolelinux.org/pere/blog/tags/mesh network">mesh network (8)</a></li>
 657
 658  <li><a href="http://people.skolelinux.org/pere/blog/tags/multimedia">multimedia (39)</a></li>
 659
 660  <li><a href="http://people.skolelinux.org/pere/blog/tags/nice free software">nice free software (9)</a></li>
 661
 662  <li><a href="http://people.skolelinux.org/pere/blog/tags/norsk">norsk (293)</a></li>
 663
 664  <li><a href="http://people.skolelinux.org/pere/blog/tags/nuug">nuug (189)</a></li>
 665
 666  <li><a href="http://people.skolelinux.org/pere/blog/tags/offentlig innsyn">offentlig innsyn (33)</a></li>
 667
 668  <li><a href="http://people.skolelinux.org/pere/blog/tags/open311">open311 (2)</a></li>
 669
 670  <li><a href="http://people.skolelinux.org/pere/blog/tags/opphavsrett">opphavsrett (66)</a></li>
 671
 672  <li><a href="http://people.skolelinux.org/pere/blog/tags/personvern">personvern (104)</a></li>
 673
 674  <li><a href="http://people.skolelinux.org/pere/blog/tags/raid">raid (2)</a></li>
 675
 676  <li><a href="http://people.skolelinux.org/pere/blog/tags/reactos">reactos (1)</a></li>
 677
 678  <li><a href="http://people.skolelinux.org/pere/blog/tags/reprap">reprap (11)</a></li>
 679
 680  <li><a href="http://people.skolelinux.org/pere/blog/tags/rfid">rfid (3)</a></li>
 681
 682  <li><a href="http://people.skolelinux.org/pere/blog/tags/robot">robot (10)</a></li>
 683
 684  <li><a href="http://people.skolelinux.org/pere/blog/tags/rss">rss (1)</a></li>
 685
 686  <li><a href="http://people.skolelinux.org/pere/blog/tags/ruter">ruter (5)</a></li>
 687
 688  <li><a href="http://people.skolelinux.org/pere/blog/tags/scraperwiki">scraperwiki (2)</a></li>
 689
 690  <li><a href="http://people.skolelinux.org/pere/blog/tags/sikkerhet">sikkerhet (53)</a></li>
 691
 692  <li><a href="http://people.skolelinux.org/pere/blog/tags/sitesummary">sitesummary (4)</a></li>
 693
 694  <li><a href="http://people.skolelinux.org/pere/blog/tags/skepsis">skepsis (5)</a></li>
 695
 696  <li><a href="http://people.skolelinux.org/pere/blog/tags/standard">standard (55)</a></li>
 697
 698  <li><a href="http://people.skolelinux.org/pere/blog/tags/stavekontroll">stavekontroll (6)</a></li>
 699
 700  <li><a href="http://people.skolelinux.org/pere/blog/tags/stortinget">stortinget (12)</a></li>
 701
 702  <li><a href="http://people.skolelinux.org/pere/blog/tags/surveillance">surveillance (52)</a></li>
 703
 704  <li><a href="http://people.skolelinux.org/pere/blog/tags/sysadmin">sysadmin (4)</a></li>
 705
 706  <li><a href="http://people.skolelinux.org/pere/blog/tags/usenix">usenix (2)</a></li>
 707
 708  <li><a href="http://people.skolelinux.org/pere/blog/tags/valg">valg (9)</a></li>
 709
 710  <li><a href="http://people.skolelinux.org/pere/blog/tags/video">video (59)</a></li>
 711
 712  <li><a href="http://people.skolelinux.org/pere/blog/tags/vitenskap">vitenskap (4)</a></li>
 713
 714  <li><a href="http://people.skolelinux.org/pere/blog/tags/web">web (40)</a></li>
 715
 716 </ul>
 717
 718
 719     </div>
 720     <p style="text-align: right">
 721  Created by <a href="http://steve.org.uk/Software/chronicle">Chronicle v4.6</a>
 722 </p>
 723
 724   </body>
 725 </html>