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Libre Computer Project
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<h2 id="hardware">Hardware</h2> <p>Libre Computer Project uses <a href="/facts/Crowd-funding/u9gwrlYI">crowd-funding</a> on <a href="/facts/Indiegogo/YGJql5Sh">Indiegogo</a> and <a href="/facts/Kickstarter/J1R5A3f6">Kickstarter</a> to market their SBC designs. The delivery and after-sales support was poor resulting in lots of complaints and dissatisfied funders. <a class="footnote-ref" id="fnref:1" href="#fn:1"><sup>1</sup></a> <a class="footnote-ref" id="fnref:2" href="#fn:2"><sup>2</sup></a> </p><p>Active Libre Computer SBC designs include: </p> <h3>ROC-RK3328-CC (Renegade)</h3> <p>The ROC-RK3328-CC "Renegade" board was funded on Indiegogo<a class="footnote-ref" id="fnref:3" href="#fn:3"><sup>3</sup></a> and features the following specifications:<a class="footnote-ref" id="fnref:4" href="#fn:4"><sup>4</sup></a> </p> <ul><li><a href="/facts/Rockchip/JlnnEBnY">Rockchip RK3328</a> SoC <ul><li>4 <a href="/facts/ARM_Cortex-A53/Pf8fGSNX">ARM Cortex-A53</a> @ 1.4GHz <ul><li>Cryptography Extensions</li></ul></li> <li>2G + 2P ARM <a href="/facts/Mali_(processor)/hHeuRwXb">Mali-450</a> @ 500MHz <ul><li><a href="/facts/OpenGL_ES/DRkjxUFb">OpenGL ES</a> 1.1 / 2.0</li> <li><a href="/facts/OpenVG/3pX8NTYD">OpenVG</a> 1.1</li></ul></li> <li>Multi-Media Processor <ul><li>Decoders <ul><li><a href="/facts/VP9/dBP8ffoc">VP9</a> P2 4K60</li> <li><a href="/facts/H.265/6gp7DC1a">H.265</a> M10P @ L5.1 4K60</li> <li><a href="/facts/H.264/soCzKcmJ">H.264</a> H10P @ L5.1 4K60</li> <li><a href="/facts/JPEG/HQ8QS3uB">JPEG</a></li></ul></li> <li>Encoders <ul><li>H.265 1080P30 or 2x H.264 720P30</li> <li>H.264 1080P30 or 2x H.264 720P30</li></ul></li></ul></li></ul></li> <li>Up to 4GB <a href="/facts/DDR4/70r37baX">DDR4</a>-2133 <a href="/facts/SDRAM/regKJe8M">SDRAM</a></li> <li>2 <a href="/facts/USB_2.0/XcIKWLyg">USB 2.0</a> Type A</li> <li>1 <a href="/facts/USB_3.0/WTnYm1IS">USB 3.0</a> Type A</li> <li><a href="/facts/Gigabit_Ethernet/1ItIoV2w">Gigabit Ethernet</a></li> <li>3.5mm TRRS AV Jack</li> <li><a href="/facts/HDMI_2.0/HuNwzm04">HDMI 2.0</a></li> <li><a href="/facts/MicroUSB/mI8gwp0y">MicroUSB</a> Power In</li> <li><a href="/facts/MicroSD_card/RLL9UTly">MicroSD card</a> Slot with UHS support</li> <li><a href="/facts/EMMC/KGkRkvIY">eMMC</a> Interface with 5.x support</li> <li>IR Receiver</li> <li>U-Boot Button</li> <li>40 Pin Low Speed Header (PWM, I2C, SPI, GPIO)</li> <li><a href="/facts/Analog-to-digital_converter/8YYNsMFg">ADC</a> Header</li> <li>Power Enable/On Header</li></ul> <h3>AML-S905X-CC (Le Potato)</h3> <p>The AML-S905X-CC "Le Potato" board was funded on Kickstarter on 24 July 2017<a class="footnote-ref" id="fnref:5" href="#fn:5"><sup>5</sup></a> and features the following specifications:<a class="footnote-ref" id="fnref:6" href="#fn:6"><sup>6</sup></a> </p> <ul><li>Amlogic S905X SoC <ul><li>4 ARM Cortex-A53 @ 1.512GHz <ul><li>Cryptography Extension</li></ul></li> <li>2G + 3P ARM Mali-450 @ 750MHz <ul><li>OpenGL ES 1.1 / 2.0</li> <li>OpenVG 1.1</li></ul></li> <li>Amlogic Video Engine 10 <ul><li>Decoders <ul><li>VP9 P2 4K60</li> <li>H.265 MP10@L5.1 4K60</li> <li>H.264 HP@L5.1 4K30</li> <li>JPEG / MJPEG</li></ul></li> <li>Encoders <ul><li>H.264 1080P60</li> <li>JPEG</li></ul></li></ul></li></ul></li> <li>Up to 2GB DDR3 SDRAM</li> <li>4 USB 2.0 Type A</li> <li>100 Mb Fast Ethernet</li> <li>3.5mm TRRS AV Jack</li> <li>HDMI 2.0</li> <li>MicroUSB Power In</li> <li>MicroSD card Slot</li> <li>eMMC Interface</li> <li>IR Receiver</li> <li>U-Boot Button</li> <li>40 Pin Low Speed Header (PWM, I2C, SPI, GPIO)</li> <li>Audio Headers (I2S, ADC, SPDIF)</li> <li>UART Header</li></ul> <p>NOTE: GPIO Header Pin 11 or HDMI CEC is selectable by onboard jumper. They can not be used at the same time since they share the same pad. </p> <h3>ALL-H3-CC (Tritium)</h3> <p>The "Tritium" board was funded on Kickstarter on 13 January 2018<a class="footnote-ref" id="fnref:7" href="#fn:7"><sup>7</sup></a> with the following specifications:<a class="footnote-ref" id="fnref:8" href="#fn:8"><sup>8</sup></a> </p> <table><tbody><tr><th>Variant</th><th>ALL-H3-CC H2+ 512MB IoT</th><th>ALL-H3-CC H3 1GB</th><th>ALL-H3-CC H5 2GB</th></tr><tr><th>CPU</th><td>4 ARM Cortex-A7</td><td>4 ARM Cortex-A7</td><td>4 ARM Cortex-A53 Crypto</td></tr><tr><th>GPU</th><td>1G + 2P ARM Mali-400<p>OpenGL ES 1.1 / 2.0OpenVG 1.1</p></td><td>1G + 2P ARM Mali-400<p>OpenGL ES 1.1 / 2.0OpenVG 1.1</p></td><td>2G + 4P ARM Mali-450<p>OpenGL ES 1.1 / 2.0OpenVG 1.1</p></td></tr><tr><th>VPU</th><td colspan="3">Allwinner Display Engine 2.0<p>Decoders</p><ul><li>VP8 1080P60</li><li>H.265 4K30/1080P60</li><li>H.264 1080P60</li><li>JPEG / MJPEG 1080P30</li></ul><p>Encoders</p><ul><li>H.264 1080P30</li></ul></td></tr><tr><th colspan="1">RAM</th><td>512MB DDR3-1600 (1333MHz Effective)</td><td>1GB DDR3-1600 (1333MHz Effective)</td><td>2GB DDR3-1600 (1333MHz Effective)</td></tr><tr><th>USB</th><td colspan="3">4 USB 2.0 Type A</td></tr><tr><th colspan="1">Network</th><td colspan="3">100 Mb Fast Ethernet</td></tr><tr><th colspan="1">Video Out</th><td colspan="2">HDMI 1.4 (1080P) HDCP 1.2<p>3.5mm TRRS AV Jack</p></td><td colspan="1">HDMI 1.4 (4K30) HDCP 1.2<p>3.5mm TRRS AV Jack</p></td></tr><tr><th>Storage</th><td colspan="3">MicroSD card slot<p>eMMC 4.x Interface</p></td></tr><tr><th colspan="1">IR</th><td colspan="3">Receive</td></tr><tr><th colspan="1">Other</th><td colspan="3">U-Boot Button<p>40 Pin Low Speed Header (PWM, I2C, SPI, GPIO)UART Header</p></td></tr><tr><th colspan="1">Recommended Use</th><td>Optimized Compute Intensive<p>IoT Edge Applications</p></td><td>Cost-Centric Open Embedded<p>Development Platform</p></td><td>Advanced 64-bit<p>Development Platform</p></td></tr></tbody></table> <h2 id="software">Software</h2> <h3>Operating systems</h3> <table><tbody><tr><th>Name</th><th>Focus</th><th>Kernel</th><th>UserSpace</th><th>ROC-RK3328-CC</th><th>AML-S905X-CC</th><th>ALL-H3-CC</th></tr><tr><td><a href="/facts/Ubuntu_(operating_system)/0WDd7hkb">Ubuntu</a></td><td>Desktop/Server</td><td><a href="/facts/Linux/9FvCKSTq">Linux</a></td><td><a href="/facts/GNU/HlAKKBdt">GNU</a>/<a href="/facts/Debian/cBd93qfJ">Debian</a></td><td>Yes<a class="footnote-ref" id="fnref:9" href="#fn:9"><sup>9</sup></a></td><td>Yes<a class="footnote-ref" id="fnref:10" href="#fn:10"><sup>10</sup></a></td><td>Yes<a class="footnote-ref" id="fnref:11" href="#fn:11"><sup>11</sup></a></td></tr><tr><td><a href="/facts/Armbian/aLCMN2sv">Armbian</a></td><td>Desktop/Server</td><td><a href="/facts/Linux/9FvCKSTq">Linux</a></td><td><a href="/facts/GNU/HlAKKBdt">GNU</a>/<a href="/facts/Debian/cBd93qfJ">Debian</a></td><td>Yes</td><td>Yes<a class="footnote-ref" id="fnref:12" href="#fn:12"><sup>12</sup></a></td><td>Yes</td></tr><tr><td><a href="/facts/Kali_Linux/zYbzlyuW">Kali Linux</a></td><td><a href="/facts/Penetration_test/Jd7lFd4z">Penetration testing</a></td><td><a href="/facts/Linux/9FvCKSTq">Linux</a></td><td><a href="/facts/GNU/HlAKKBdt">GNU</a>/<a href="/facts/Debian/cBd93qfJ">Debian</a></td><td>No</td><td>No</td><td>No</td></tr><tr><td>Volumio</td><td>Audio web server</td><td><a href="/facts/Linux/9FvCKSTq">Linux</a></td><td><a href="/facts/GNU/HlAKKBdt">GNU</a>/<a href="/facts/Debian/cBd93qfJ">Debian</a></td><td>No</td><td>No</td><td>No</td></tr><tr><td>Retropie<a class="footnote-ref" id="fnref:13" href="#fn:13"><sup>13</sup></a></td><td><a href="/facts/Video_game/vmTdNASJ">Gaming</a></td><td><a href="/facts/Linux/9FvCKSTq">Linux</a></td><td><a href="/facts/GNU/HlAKKBdt">GNU</a>/<a href="/facts/Debian/cBd93qfJ">Debian</a></td><td>No</td><td>Yes</td><td>No</td></tr><tr><td>Happi<a class="footnote-ref" id="fnref:14" href="#fn:14"><sup>14</sup></a></td><td><a href="/facts/Video_game/vmTdNASJ">Gaming</a></td><td><a href="/facts/Linux/9FvCKSTq">Linux</a></td><td><a href="/facts/GNU/HlAKKBdt">GNU</a>/<a href="/facts/Debian/cBd93qfJ">Debian</a></td><td>No</td><td>No</td><td>No</td></tr><tr><td><a href="/facts/Android_(operating_system)/nNyHb0xz">Android</a></td><td>Mobile/<a href="/facts/Home_theater_PC/uw6HTzvv">HTPC</a></td><td><a href="/facts/Linux/9FvCKSTq">Linux</a></td><td><a href="/facts/Android_(operating_system)/nNyHb0xz">Android</a></td><td>Yes</td><td>Yes<a class="footnote-ref" id="fnref:15" href="#fn:15"><sup>15</sup></a></td><td>Yes<a class="footnote-ref" id="fnref:16" href="#fn:16"><sup>16</sup></a></td></tr><tr><td><a href="/facts/LibreELEC/Dsl2Plv2">LibreELEC</a></td><td><a href="/facts/Home_theater_PC/uw6HTzvv">HTPC</a></td><td><a href="/facts/Linux/9FvCKSTq">Linux</a></td><td><a href="/facts/Kodi_(software)/tzwEQ9oh">Kodi</a></td><td>No</td><td>Yes<a class="footnote-ref" id="fnref:17" href="#fn:17"><sup>17</sup></a></td><td>No</td></tr><tr><td><a href="/facts/Arch_Linux/MTFCkLqH">Arch Linux</a></td><td>Desktop/Server</td><td><a href="/facts/Linux/9FvCKSTq">Linux</a></td><td><a href="/facts/GNU/HlAKKBdt">GNU</a>/<a href="/facts/Arch_Linux/MTFCkLqH">Arch</a></td><td>No</td><td>No</td><td>No</td></tr><tr><td>Rune Audio<a class="footnote-ref" id="fnref:18" href="#fn:18"><sup>18</sup></a></td><td>Audio web server</td><td><a href="/facts/Linux/9FvCKSTq">Linux</a></td><td><a href="/facts/GNU/HlAKKBdt">GNU</a>/<a href="/facts/Arch_Linux/MTFCkLqH">Arch</a></td><td>No</td><td>No</td><td>No</td></tr><tr><td>Lakka</td><td><a href="/facts/Video_game/vmTdNASJ">Gaming</a></td><td><a href="/facts/Linux/9FvCKSTq">Linux</a></td><td><a href="/facts/GNU/HlAKKBdt">GNU</a>/<a href="/facts/Arch_Linux/MTFCkLqH">Arch</a></td><td>No</td><td>Yes<a class="footnote-ref" id="fnref:19" href="#fn:19"><sup>19</sup></a></td><td>No</td></tr><tr><td><a href="/facts/Fedora_(operating_system)/LJ2ocge5">Fedora</a></td><td>Desktop/Server</td><td><a href="/facts/Linux/9FvCKSTq">Linux</a></td><td><a href="/facts/GNU/HlAKKBdt">GNU</a>/<a href="/facts/Fedora_(operating_system)/LJ2ocge5">Fedora</a></td><td>No</td><td>No</td><td>No</td></tr><tr><td><a href="/facts/Void_Linux/3hUU3Ezy">Void Linux</a></td><td>Desktop/Server</td><td><a href="/facts/Linux/9FvCKSTq">Linux</a></td><td><a href="/facts/GNU/HlAKKBdt">GNU</a></td><td>No</td><td>No</td><td>No</td></tr><tr><td><a href="/facts/NetBSD/PTm5HWls">NetBSD</a></td><td>Desktop/Server</td><td><a href="/facts/Berkeley_Software_Distribution/XQKcURrh">BSD</a></td><td><a href="/facts/Berkeley_Software_Distribution/XQKcURrh">BSD</a></td><td>No</td><td>No</td><td>No</td></tr><tr><td><a href="/facts/Genode/4qRKnnv6">Genode</a><a class="footnote-ref" id="fnref:20" href="#fn:20"><sup>20</sup></a></td><td>OS Framework</td><td>base-hw</td><td>Genode</td><td>No</td><td>No</td><td>No</td></tr><tr><td>Batocera Linux</td><td><a href="/facts/Video_game/vmTdNASJ">Gaming</a></td><td><a href="/facts/Linux/9FvCKSTq">Linux</a></td><td><a href="/facts/GNU/HlAKKBdt">GNU</a>/<a href="/facts/Arch_Linux/MTFCkLqH">Arch</a></td><td>No</td><td>No</td><td>No</td></tr></tbody></table> <h2 id="open-source">Open Source</h2> <h3>Software</h3> <p>Libre Computer is focused on upstream support in open-source software using standardized API interfaces. This includes Linux, u-boot, LibreELEC RetroArch, and more. A variety of open-source operating systems may be used on Libre Computer boards, including Linux and Android. Few to no binary blobs are used to boot and operate the boards. </p> <h3>Hardware</h3> <p>Schematics and 2D silkscreen are available for all hardware. Design files are based on non-disclosure materials from SoC vendors.<a class="footnote-ref" id="fnref:21" href="#fn:21"><sup>21</sup></a> CAD files are not available.<a class="footnote-ref" id="fnref:22" href="#fn:22"><sup>22</sup></a> </p> <h2 id="see-also">See also</h2> <ul> <li>Electronics portal</li><li>Free and open-source software portal</li></ul> <ul><li>Comparison of single-board computers</li> <li><a href="/facts/List_of_open-source_hardware_projects/yaMnQJRc">List of open-source hardware projects</a></li> <li><a href="/facts/OLinuXino/dUAnmu9a">OLinuXino</a></li> <li><a href="/facts/BeagleBoard/e5aKymjU">BeagleBoard</a></li> <li><a href="/facts/Raspberry_Pi/Ie6Lx9n5">Raspberry Pi</a></li></ul> <h2 id="references">References</h2> <ol> <li id="fn:1"><p>"Order Support". <a href="https://forum.loverpi.com/categories/order-support" target="_blank">https://forum.loverpi.com/categories/order-support</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li> <li id="fn:2"><p>"Crowdfunding". <a href="https://forum.loverpi.com/categories/crowdfunding" target="_blank">https://forum.loverpi.com/categories/crowdfunding</a> <a href="#fnref:2" class="footnote-back-ref">↩</a></p></li> <li id="fn:3"><p>"Renegade ARM Computer with USB 3 on Android Linux". Indiegogo. Retrieved 12 April 2018. <a href="https://www.indiegogo.com/projects/renegade-arm-computer-with-usb-3-on-android-linux-computers#/" target="_blank">https://www.indiegogo.com/projects/renegade-arm-computer-with-usb-3-on-android-linux-computers#/</a> <a href="#fnref:3" class="footnote-back-ref">↩</a></p></li> <li id="fn:4"><p>"ROC-RK3328-CC (Renegade)". Libre Computer. Archived from the original on 21 February 2018. Retrieved 12 April 2018. <a href="https://web.archive.org/web/20180221100409/https://libre.computer/products/boards/roc-rk3328-cc/" target="_blank">https://web.archive.org/web/20180221100409/https://libre.computer/products/boards/roc-rk3328-cc/</a> <a href="#fnref:4" class="footnote-back-ref">↩</a></p></li> <li id="fn:5"><p>"AML-S905X-CC Le Potato: Fastest 4K SBC under $50 for Makers". Kickstarter. Retrieved 12 April 2018. <a href="https://www.kickstarter.com/projects/librecomputer/libre-computer-board-next-gen-4k-sbc-dev-board-for" target="_blank">https://www.kickstarter.com/projects/librecomputer/libre-computer-board-next-gen-4k-sbc-dev-board-for</a> <a href="#fnref:5" class="footnote-back-ref">↩</a></p></li> <li id="fn:6"><p>"AML-S905X-CC (Le Potato)". Libre Computer. Archived from the original on 7 April 2018. Retrieved 12 April 2018. <a href="https://web.archive.org/web/20180407232936/https://libre.computer/products/boards/aml-s905x-cc/" target="_blank">https://web.archive.org/web/20180407232936/https://libre.computer/products/boards/aml-s905x-cc/</a> <a href="#fnref:6" class="footnote-back-ref">↩</a></p></li> <li id="fn:7"><p>"Tritium: Quad Core ARM Computer with Android/Linux for $9+". Kickstarter. Retrieved 12 April 2018. <a href="https://www.kickstarter.com/projects/librecomputer/libre-computer-board-tritium-sbc-linux-android-7-n" target="_blank">https://www.kickstarter.com/projects/librecomputer/libre-computer-board-tritium-sbc-linux-android-7-n</a> <a href="#fnref:7" class="footnote-back-ref">↩</a></p></li> <li id="fn:8"><p>"ALL-H3-CC (Tritium)". Libre Computer. Archived from the original on 9 May 2018. Retrieved 12 April 2018. <a href="https://web.archive.org/web/20180509091952/https://libre.computer/products/boards/all-h3-cc/" target="_blank">https://web.archive.org/web/20180509091952/https://libre.computer/products/boards/all-h3-cc/</a> <a href="#fnref:8" class="footnote-back-ref">↩</a></p></li> <li id="fn:9"><p>"Ubuntu for ROC-RK3328-CC". share.loverpi.com. Retrieved 2018-04-17. <a href="http://share.loverpi.com/board/libre-computer-project/libre-computer-board-roc-rk3328-cc/image/ubuntu/" target="_blank">http://share.loverpi.com/board/libre-computer-project/libre-computer-board-roc-rk3328-cc/image/ubuntu/</a> <a href="#fnref:9" class="footnote-back-ref">↩</a></p></li> <li id="fn:10"><p>"Ubuntu for AML-S905X-CC". share.loverpi.com. Retrieved 2018-04-17. <a href="http://share.loverpi.com/board/libre-computer-project/libre-computer-board-aml-s905x-cc/image/ubuntu/" target="_blank">http://share.loverpi.com/board/libre-computer-project/libre-computer-board-aml-s905x-cc/image/ubuntu/</a> <a href="#fnref:10" class="footnote-back-ref">↩</a></p></li> <li id="fn:11"><p>"Ubuntu for ALL-H3-CC". share.loverpi.com. Retrieved 2018-04-17. <a href="http://share.loverpi.com/board/libre-computer-project/libre-computer-board-all-h3-cc/image/ubuntu/" target="_blank">http://share.loverpi.com/board/libre-computer-project/libre-computer-board-all-h3-cc/image/ubuntu/</a> <a href="#fnref:11" class="footnote-back-ref">↩</a></p></li> <li id="fn:12"><p>"Armbian for AML-S905X-CC". armbian.com. 18 October 2017. Retrieved 2018-04-17. <a href="https://www.armbian.com/lepotato/" target="_blank">https://www.armbian.com/lepotato/</a> <a href="#fnref:12" class="footnote-back-ref">↩</a></p></li> <li id="fn:13"><p>"RetroPie - Retrogaming OS". RetroPie. Retrieved 2016-10-12. <a href="https://retropie.org.uk" target="_blank">https://retropie.org.uk</a> <a href="#fnref:13" class="footnote-back-ref">↩</a></p></li> <li id="fn:14"><p>"Happi game center - Retrogaming OS". happi-game-center.com. Archived from the original on 2016-10-25. Retrieved 2016-10-12. <a href="https://web.archive.org/web/20161025121405/http://happi-game-center.com/" target="_blank">https://web.archive.org/web/20161025121405/http://happi-game-center.com/</a> <a href="#fnref:14" class="footnote-back-ref">↩</a></p></li> <li id="fn:15"><p>"Android for AML-S905X-CC". share.loverpi.com. Retrieved 2018-04-17. <a href="http://share.loverpi.com/board/libre-computer-project/libre-computer-board-aml-s905x-cc/image/android/" target="_blank">http://share.loverpi.com/board/libre-computer-project/libre-computer-board-aml-s905x-cc/image/android/</a> <a href="#fnref:15" class="footnote-back-ref">↩</a></p></li> <li id="fn:16"><p>"Android for ALL-H3-CC". share.loverpi.com. Retrieved 2018-04-17. <a href="http://share.loverpi.com/board/libre-computer-project/libre-computer-board-all-h3-cc/image/android/" target="_blank">http://share.loverpi.com/board/libre-computer-project/libre-computer-board-all-h3-cc/image/android/</a> <a href="#fnref:16" class="footnote-back-ref">↩</a></p></li> <li id="fn:17"><p>"LibreELEC for AML-S905X-CC". forum.loverpi.com. Retrieved 2018-04-17. <a href="http://forum.loverpi.com/discussion/17/libreelec" target="_blank">http://forum.loverpi.com/discussion/17/libreelec</a> <a href="#fnref:17" class="footnote-back-ref">↩</a></p></li> <li id="fn:18"><p>"RuneAudio - Audio OS". RuneAudio. Retrieved 2016-10-12. <a href="http://www.runeaudio.com" target="_blank">http://www.runeaudio.com</a> <a href="#fnref:18" class="footnote-back-ref">↩</a></p></li> <li id="fn:19"><p>"Lakka for AML-S905X-CC". share.loverpi.com. Retrieved 2018-04-17. <a href="http://share.loverpi.com/board/libre-computer-project/libre-computer-board-aml-s905x-cc/image/lakka/" target="_blank">http://share.loverpi.com/board/libre-computer-project/libre-computer-board-aml-s905x-cc/image/lakka/</a> <a href="#fnref:19" class="footnote-back-ref">↩</a></p></li> <li id="fn:20"><p>"How to use Genode directly on hardware". genode.org. Retrieved 2017-06-05. <a href="https://genode.org/documentation/platforms/hw" target="_blank">https://genode.org/documentation/platforms/hw</a> <a href="#fnref:20" class="footnote-back-ref">↩</a></p></li> <li id="fn:21"><p>"Libre Computer". Twitter. {{cite web}}: Missing or empty |url= (help) <a href="/wiki/Template:Cite_web" target="_blank">/wiki/Template:Cite_web</a> <a href="#fnref:21" class="footnote-back-ref">↩</a></p></li> <li id="fn:22"><p>"libreboard running without proprietary binary blobs?". Your Destination for Single Board Computers. Retrieved 2018-12-15. <a href="http://forum.loverpi.com/discussion/27/libreboard-running-without-proprietary-binary-blobs" target="_blank">http://forum.loverpi.com/discussion/27/libreboard-running-without-proprietary-binary-blobs</a> <a href="#fnref:22" class="footnote-back-ref">↩</a></p></li> </ol>