tag:blogger.com,1999:blog-38082302024-03-24T04:09:38.008-03:00Gazineu's WorkshopGazineuhttp://www.blogger.com/profile/17587761948037367001noreply@blogger.comBlogger3125tag:blogger.com,1999:blog-3808230.post-84591901712450604372017-02-09T14:36:00.002-02:002017-02-09T14:36:20.182-02:00GnuBee Personal Cloud OneNew foray I make in projects for personal home storage, since making <b><a href="https://sourceforge.net/projects/snake-os/">SnakeOS</a></b>.<br>
The target audience includes those who want an alternative to commercial network disks (NAS), but with the freedom to make their own modifications, cheaper and with lower power consumption.
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In the link below you can get more information and sign up to manifest interest:
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<a href="https://www.crowdsupply.com/larry-d-pinney/gnubee-personal-cloud-1"><b>https://www.crowdsupply.com/larry-d-pinney/gnubee-personal-cloud-1</b></a>
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<div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiDYcyes26GxwHy8f9ja_RmH6pZ78AjgpZFOguNQRG413avqPwg-X32brA1I7-Ak1ND8m7fW7DDtWZGzhDrzB_BDt-5JCXmMCL0qeyw2FvXD68ipav1iuJqE_8CzJ2g6RRb7uVQ/s1600/gnubee-prelaunch_jpg_project-main.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiDYcyes26GxwHy8f9ja_RmH6pZ78AjgpZFOguNQRG413avqPwg-X32brA1I7-Ak1ND8m7fW7DDtWZGzhDrzB_BDt-5JCXmMCL0qeyw2FvXD68ipav1iuJqE_8CzJ2g6RRb7uVQ/s400/gnubee-prelaunch_jpg_project-main.jpg" width="400" height="225" /></a></div>Gazineuhttp://www.blogger.com/profile/17587761948037367001noreply@blogger.com3tag:blogger.com,1999:blog-3808230.post-80235673270164376532012-10-10T19:30:00.001-03:002013-04-22T09:21:10.859-03:00RasPiSNES - Design<div class="separator" style="clear: both; text-align: center;">
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<span style="font-family: inherit;">On the build of the RasPiSNES, some design decisions were made considering the needed connections, and based on the projects incorporated here, namely <a href="http://www.raspberrypi.org/phpBB3/viewtopic.php?t=15787&p=165638" target="_blank">gamecon_gpio_rpi</a>. </span></div>
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<span style="font-family: inherit;">To drive the controllers, the flat cable that was connected to the original SNES board was used, keeping the front plate almost intact. The bonus in using this connection was to get the SNES power led acting as it should.</span></div>
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<span style="font-family: inherit;">To show those connections, below are the representation of the RPi header, at left, and the flat cable that came from the front panel, at right, to which the gamepads are connected.</span></div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgoO37nswVeYQc62kLH40zx-LGROIMLKgiwulHDeYPcma9lPvzd0nnee4h4rgX9VAwvJfqpx2R5ZcNKanC4wNzXp9hCzkTeItaj1dyEL9arigfKiQOvVN6_ZpqsAqzIx-38PGoB/s1600/RasPiSNES-schematic-ControlPads.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><span style="font-family: inherit;"><img border="0" height="345" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgoO37nswVeYQc62kLH40zx-LGROIMLKgiwulHDeYPcma9lPvzd0nnee4h4rgX9VAwvJfqpx2R5ZcNKanC4wNzXp9hCzkTeItaj1dyEL9arigfKiQOvVN6_ZpqsAqzIx-38PGoB/s640/RasPiSNES-schematic-ControlPads.png" width="640" /></span></a></div>
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<span style="font-family: inherit;">Control Pad connections</span></div>
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<span style="font-family: inherit;">For the hotkeys, I was considering the use of an old usb keyboard, but it would kill a good usb port, and to keep it simple I discarded the possibility of an usb hub. Luckily, as only four GPIO pins were used for the two gamepad ports, thirteen remained free!</span></div>
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<span style="font-family: inherit;">As the RPi allows for very easy <a href="http://elinux.org/RPi_Low-level_peripheral" target="_blank">GPIO</a> access with </span>C, C#, python and even shell, among other languages, lets put these pins to work. <span style="font-family: inherit;">It is always good to use some spare parts we have as result of some years of <strike>collecting junk</strike> electronics work, so I took some push-buttons for the essencial operations needed: to pause and manage savegames.</span></div>
<span style="font-family: inherit;">The default operations until this point were based on these keyboard keys:</span><br />
<ul>
<li><span style="font-family: inherit;">Escape: Exit the retroarch emulator and get back to emulationstation.</span></li>
<ul>
<li><span style="font-family: inherit;">Map to EJECT on console. </span></li>
</ul>
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<li><span style="font-family: inherit;">H: Reset the current the retroarch emulated console.</span></li>
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<li><span style="font-family: inherit;">Map to RESET on console.</span></li>
</ul>
</ul>
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<li><span style="font-family: inherit;">F2, F4: Save and load games.</span></li>
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<li><span style="font-family: inherit;">Map to SAVE, LOAD on the hotkeypad.</span></li>
</ul>
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<li><span style="font-family: inherit;">F6, F7: Change the current.</span></li>
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<li><span style="font-family: inherit;">Map to SLOT-, SLOT+ on the hotkeypad.</span></li>
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<li><span style="font-family: inherit;">P: Pause games.</span></li>
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<li><span style="font-family: inherit;">Map to PAUSE on the hotkeypad.</span></li>
</ul>
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<span style="font-family: inherit;"><span style="font-family: inherit;"> Note: <span style="font-family: inherit;">I had to remap key F4 to F3 for game load in
retroarch.cfg, so if this button got pressed while in emulationstation,
it does not quit to the shell. This is quite easy:</span></span></span></div>
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<span style="font-family: inherit;"><span style="font-family: inherit;"><span style="font-family: inherit;">#in file</span></span></span><br />
<span style="font-family: inherit;"><span style="font-family: inherit;"><span style="font-family: inherit;"><span style="font-family: inherit;"><span style="font-family: inherit;">/etc/retroarch.cfg</span></span></span></span></span><br />
<span style="font-family: inherit;"><span style="font-family: inherit;"><span style="font-family: inherit;"><span style="font-family: inherit;"><span style="font-family: inherit;">#added line</span></span></span></span></span><br />
<span style="font-family: inherit;"><span style="font-family: inherit;"><span style="font-family: inherit;"><span style="font-family: inherit;"><span style="font-family: inherit;"><span style="font-family: inherit;"><span style="font-family: inherit;">input_load_state = f3</span></span> </span></span></span></span></span></blockquote>
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<span style="font-family: inherit;"><span style="font-family: inherit;">These hotkeys are located as hidden as possible at first sight, on the back of the console</span></span>, and their connections go as this:</div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh5fVfEnHAEK8KGqsw-wZ5CX5sAAdmYzVmq-NU7ICVmES8HcOKirClNSfDbvINV7CLvLsRFdExJq8daJf348h2en6UmmyNvaWZS5kEfFZEpGELQWrXm8K5EOsZWioHvztoHsp2u/s1600/RasPiSNES-schematic-Power-Functions.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="388" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh5fVfEnHAEK8KGqsw-wZ5CX5sAAdmYzVmq-NU7ICVmES8HcOKirClNSfDbvINV7CLvLsRFdExJq8daJf348h2en6UmmyNvaWZS5kEfFZEpGELQWrXm8K5EOsZWioHvztoHsp2u/s640/RasPiSNES-schematic-Power-Functions.png" width="640" /></a></div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgjMO7lhLW2qrwuvBBosKR9BkFsf_QajkXjafNVp00zj15CXxO3bSQQYVuqfOcGJzRIKoToRiGybtX7AGV_U3G_WVmh8JtJmJk-22v9U4bq4-b6jg7WpQoAug1_zO4vK8VFaXUO/s1600/RasPiSNES-schematic-Power-Functions.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><span style="font-family: inherit;"></span></a></div>
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<span style="font-family: inherit;">Power and Hotkeys</span></div>
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To protect the RPi from some misconnection, I have added a bunch of 10k<span class="st">Ω</span> resistors inline with the pushbuttons. The <a href="https://dl.dropbox.com/s/iqbsm1e3y575dp7/rpi-gpio-SNES-commands.py" target="_blank">python script that drive the keys</a> make use of the internal 60k pull-ups, so these were not needed externally. </div>
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To make the keys work, the script must be running as user root. As the RetroPie script can make the emulator start on boot, it is only a matter to find where it calls the emulator and start it before:</div>
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# in file <br />
/etc/profile<br />
# insert this line.. <br />
sudo python /home/pi/rpi-gpio-SNES-commands.py &<br /># ... before the call to the emulator<br />emulationstation</blockquote>
The remaining cables (USB, Audio, LAN, Composite) are only passive connections, so no interface is internal, and all ports remain accessible (including one self-made extension for the SD slot).Gazineuhttp://www.blogger.com/profile/17587761948037367001noreply@blogger.com2tag:blogger.com,1999:blog-3808230.post-61656027094448936942012-10-08T22:04:00.003-03:002012-11-19T13:14:27.054-02:00RasPiSNES<div>
<span style="font-family: "Helvetica Neue",Arial,Helvetica,sans-serif;">Recently I've bought a <a href="http://www.raspberrypi.org/">Raspbery Pi</a> to make some little <a href="http://www.xbmc.org/">XBMC</a> (a software media center), but after fiddling with it for a week, ideas started to appear. <br />
As some of my hobbies include eletronics and old video-games (notably Super Nintendo), the project that come after was very appealing to me... to make an emulated SNES running on Pi, inside an old SNES case. <br />
Some premises were:</span><br />
<ol>
<li><span style="font-family: "Helvetica Neue",Arial,Helvetica,sans-serif;">
To use as many original components as possible;</span></li>
<li><span style="font-family: "Helvetica Neue",Arial,Helvetica,sans-serif;">Original and unmodified controllers (using <a href="http://www.raspberrypi.org/phpBB3/viewtopic.php?t=15787&p=165638" target="_blank">gamecon_gpio_rpi drive</a>r) ;</span></li>
<li><span style="font-family: "Helvetica Neue",Arial,Helvetica,sans-serif;">Improve original console with save/pause functions; </span></li>
<li><span style="font-family: "Helvetica Neue",Arial,Helvetica,sans-serif;">
Use the console buttons in the same way as intended (Power, Eject, Reset) and</span></li>
<li><span style="font-family: "Helvetica Neue",Arial,Helvetica,sans-serif;">Keep RasPi ports accessible. </span></li>
</ol>
<span style="font-family: "Helvetica Neue",Arial,Helvetica,sans-serif;"> To solve #1, <a href="http://www.mercadolivre.com.br/" target="_blank">MercadoLivre</a> to the rescue (an eBay member in Brazil), find and buy one non-working SNES.</span><br />
<span style="font-family: "Helvetica Neue",Arial,Helvetica,sans-serif;"> The item #2 was already explained. Thanks a lot to the author!</span><br />
<span style="font-family: "Helvetica Neue",Arial,Helvetica,sans-serif;"> The buttons in #3 and #4 needed a driver, but with Raspberry Pi the pins already have so many API´s to use that I could not resist to just "Keep It Simple" and have adapted an <a href="http://blog.thestateofme.com/2012/08/10/raspberry-pi-gpio-joystick/" target="_blank">existing python script</a> to fill my needs. <a href="https://dl.dropbox.com/s/iqbsm1e3y575dp7/rpi-gpio-SNES-commands.py?dl=1" target="_blank">Here</a> you can get a copy of the used script.</span><br />
<span style="font-family: "Helvetica Neue",Arial,Helvetica,sans-serif;"> At last, but the majority of work done here, #5 was comprised by the RasPi port extensions on the case, pictured below. </span><br />
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<span style="font-family: "Helvetica Neue",Arial,Helvetica,sans-serif;">Besides Super Nintendo, the RasPiSNES is able to emulate Atari 2600, Nintendo, Sega Master System, Genesys (Sega MegaDrive) and some others with the EmulationStation frontend, thanks to <a href="http://petrockblog.wordpress.com/retropie/" target="_blank">RetroPie</a> script.</span><br />
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<span style="font-family: "Helvetica Neue",Arial,Helvetica,sans-serif;"> Here are some photos of the RasPiSNES, somewhat ugly inside, but very functional.</span><br />
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<span style="font-family: "Helvetica Neue",Arial,Helvetica,sans-serif;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEicbXMjFwHe7gcEuC5IgA8TtXMsrLAyNaRXm98_tydTkyieCpTHB63x2_FZEG_wW-qwDZ66OgBV_1K66ltWIY-oplZtl1pphLQhLzUnE_MdmQdjLiEsw0fWOUPjEB1gx1XZtdCQ/s1600/2012-10-06+15.28.25.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="300" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEicbXMjFwHe7gcEuC5IgA8TtXMsrLAyNaRXm98_tydTkyieCpTHB63x2_FZEG_wW-qwDZ66OgBV_1K66ltWIY-oplZtl1pphLQhLzUnE_MdmQdjLiEsw0fWOUPjEB1gx1XZtdCQ/s400/2012-10-06+15.28.25.jpg" width="400" /></a></span></div>
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<span style="font-family: "Helvetica Neue",Arial,Helvetica,sans-serif;"> From left to right (Up row): 2xUSB, Control Buttons (Save, Load, Slot-, Slot+, Pause)</span></div>
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<span style="font-family: "Helvetica Neue",Arial,Helvetica,sans-serif;">(Down Row): Audio out, LAN, HDMI, Power and Composite out.</span></div>
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<span style="font-family: "Helvetica Neue",Arial,Helvetica,sans-serif;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhZ8wHhfw4X_f6Sl4egbDg0bDpiFkhyzoybzEDOrArOzpb8sYT_elTPKdqXyuxE2aS0xGicu5SI7-sk_KOtwCrJy-awSaEJSOzDjgFarAzjk_r58n2vmAUduF-g5n3fQuJ7YRV_/s1600/2012-10-06+15.28.43.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="300" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhZ8wHhfw4X_f6Sl4egbDg0bDpiFkhyzoybzEDOrArOzpb8sYT_elTPKdqXyuxE2aS0xGicu5SI7-sk_KOtwCrJy-awSaEJSOzDjgFarAzjk_r58n2vmAUduF-g5n3fQuJ7YRV_/s400/2012-10-06+15.28.43.jpg" width="400" /></a></span></div>
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<span style="font-family: "Helvetica Neue",Arial,Helvetica,sans-serif;">On the right is the SD Card </span></div>
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<span style="font-family: "Helvetica Neue",Arial,Helvetica,sans-serif;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhl97PHX0scbVI7IAcPlGKeg_TjqsFEWL96mzGRfTL_jf1y3DTuUH02DJmAiPOKfk-9OUPQY9ccJrzYpkWhYFOk_OvX2t3eZlQ2ODLvTthqnu5fflXIIWyvG_IuFFL6iJjji0io/s1600/2012-10-06+17.29.57.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="300" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhl97PHX0scbVI7IAcPlGKeg_TjqsFEWL96mzGRfTL_jf1y3DTuUH02DJmAiPOKfk-9OUPQY9ccJrzYpkWhYFOk_OvX2t3eZlQ2ODLvTthqnu5fflXIIWyvG_IuFFL6iJjji0io/s400/2012-10-06+17.29.57.jpg" width="400" /></a></span></div>
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<span style="font-family: "Helvetica Neue",Arial,Helvetica,sans-serif;">Emulator screens: Atari 2600 </span></div>
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<span style="font-family: "Helvetica Neue",Arial,Helvetica,sans-serif;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgYE69IR9SNIpd6had3sDS2lTwhy2aD-ddLLcJBaiE9_rXfF8W8TBE74edjPhOcsODz5xWjz8RRhX0rbFFq6FMPk-ftjHUMORREXiY-_T7owf6QhB0d-5oEenYTYGuYgMV-HiJ8/s1600/2012-10-06+17.30.44.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="300" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgYE69IR9SNIpd6had3sDS2lTwhy2aD-ddLLcJBaiE9_rXfF8W8TBE74edjPhOcsODz5xWjz8RRhX0rbFFq6FMPk-ftjHUMORREXiY-_T7owf6QhB0d-5oEenYTYGuYgMV-HiJ8/s400/2012-10-06+17.30.44.jpg" width="400" /></a></span></div>
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<span style="font-family: "Helvetica Neue",Arial,Helvetica,sans-serif;"> Emulator screens: Super Nintendo </span></div>
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<span style="font-family: "Helvetica Neue",Arial,Helvetica,sans-serif;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj9cYW3tIjc7uX-6IxRRit_jvipj8It9Hf3dCHpMMZ6UoM0saEc702Xm09Ov0sFP6UkwBM-9LYxe93qBfMvtPvUQsk2OHRohmyuh3f6gq-jMZSTYf3qyKSOChkioWHb09jkhCC_/s1600/2012-10-06+17.32.09.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="300" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj9cYW3tIjc7uX-6IxRRit_jvipj8It9Hf3dCHpMMZ6UoM0saEc702Xm09Ov0sFP6UkwBM-9LYxe93qBfMvtPvUQsk2OHRohmyuh3f6gq-jMZSTYf3qyKSOChkioWHb09jkhCC_/s400/2012-10-06+17.32.09.jpg" width="400" /></a></span></div>
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<span style="font-family: "Helvetica Neue",Arial,Helvetica,sans-serif;"> Emulator screens: A good old game! </span></div>
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<span style="font-family: "Helvetica Neue",Arial,Helvetica,sans-serif;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjG1zL7Q9jBPGWZhZfnog1X7GjCV7vopG45iQX9IKmXVKcKJjGrwG6IYZdINL7hzTwWBiGlIgE45z4NiVBVfJlZKDR1YK0LcRSRGZTAQ53NXll4jP39D-sP_Mp7qghXE6JZ5PF6/s1600/2012-10-08+14.54.38.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjG1zL7Q9jBPGWZhZfnog1X7GjCV7vopG45iQX9IKmXVKcKJjGrwG6IYZdINL7hzTwWBiGlIgE45z4NiVBVfJlZKDR1YK0LcRSRGZTAQ53NXll4jP39D-sP_Mp7qghXE6JZ5PF6/s400/2012-10-08+14.54.38.jpg" width="300" /></a></span></div>
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<span style="font-family: "Helvetica Neue",Arial,Helvetica,sans-serif;">Inside View, some wires and an auxiliary board to connect the inputs</span></div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiYCtxptiEu7HHwJD0SAcWOH7daidme9Drs7bT2dNtZt1UAqEDBbWtSanprZQ1HI9oOxHQUP5Bqlb1mDoWNnkULUdAaeu67lnSl7IA0AghfQ0A0ZFd31UMDuR6dVW73_ggYbkZf/s1600/2012-10-06+16.58.28.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiYCtxptiEu7HHwJD0SAcWOH7daidme9Drs7bT2dNtZt1UAqEDBbWtSanprZQ1HI9oOxHQUP5Bqlb1mDoWNnkULUdAaeu67lnSl7IA0AghfQ0A0ZFd31UMDuR6dVW73_ggYbkZf/s400/2012-10-06+16.58.28.jpg" width="300" /></a></div>
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<span style="font-family: "Helvetica Neue",Arial,Helvetica,sans-serif;"> Top View, with rewired power, and Eject/Reset connecting to GPIO on RPi</span></div>
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Update: On the <a href="http://www.gazineu.com/2012/10/raspisnes-design.html">second part</a>, we get into the schematics of this project.<br />
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Gazineuhttp://www.blogger.com/profile/17587761948037367001noreply@blogger.com7