openhardware

<p>New video! I&#x27;m building the Open Source Arcade Stick in the DE-9 version (Commodore, Atari etc) with adjustable auto fire and lit fire buttons.</p><p>YouTube: <a href="https://youtu.be/1HzP0J1iCzU" rel="nofollow"><span class="invisible">https://</span>youtu.be/1HzP0J1iCzU</a><br>PeerTube: <a href="https://makertube.net/w/jgfwx7jofMpVmychGogFrV" rel="nofollow" class="ellipsis" title="makertube.net/w/jgfwx7jofMpVmychGogFrV"><span class="invisible">https://</span><span class="ellipsis">makertube.net/w/jgfwx7jofMpVmy</span><span class="invisible">chGogFrV</span></a></p><p><a href="/tags/joystick/" rel="tag">#Joystick</a> <a href="/tags/osastick/" rel="tag">#OSAstick</a> <a href="/tags/opensource/" rel="tag">#OpenSource</a> <a href="/tags/openhardware/" rel="tag">#OpenHardware</a> <a href="/tags/creativecommons/" rel="tag">#CreativeCommons</a> <a href="/tags/arcade/" rel="tag">#Arcade</a> <a href="/tags/commodore/" rel="tag">#Commodore</a> <a href="/tags/amiga/" rel="tag">#Amiga</a> <a href="/tags/c64/" rel="tag">#C64</a> <a href="/tags/atari/" rel="tag">#Atari</a> <a href="/tags/retrogaming/" rel="tag">#RetroGaming</a> <a href="/tags/retrocomputing/" rel="tag">#RetroComputing</a> <a href="/tags/diy/" rel="tag">#DIY</a> <a href="/tags/build/" rel="tag">#Build</a></p>

<p>My latest blog post: Hacking an IKEA HÖVOLM into a Helmet Rack</p><p><a href="https://mikecoats.com/hovolm-helmet-rack/" rel="nofollow" class="ellipsis" title="mikecoats.com/hovolm-helmet-rack/"><span class="invisible">https://</span><span class="ellipsis">mikecoats.com/hovolm-helmet-ra</span><span class="invisible">ck/</span></a></p><p>I received my first ever 3D printer as a present recently, so I decided to put it to some practical use. I designed some new hooks to hold bike helmets securely on an IKEA HÖVOLM.</p><p><a href="/tags/3dprinting/" rel="tag">#3dPrinting</a> <a href="/tags/biketooter/" rel="tag">#bikeTooter</a> <a href="/tags/opensource/" rel="tag">#openSource</a> <a href="/tags/openhardware/" rel="tag">#openHardware</a></p>

<p>My latest blog post: I presented at the 2025 Open Hardware Summit</p><p><a href="https://mikecoats.com/presented-at-ohs-2025/" rel="nofollow" class="ellipsis" title="mikecoats.com/presented-at-ohs-2025/"><span class="invisible">https://</span><span class="ellipsis">mikecoats.com/presented-at-ohs</span><span class="invisible">-2025/</span></a></p><p>Apologies for the break in blogging, but I&#x27;ve spent the past month preparing for, and then giving, my &#x27;VanSpoof and F**dG3ar&#x27; talk at the 2025 Open Hardware Summit.</p><p><a href="/tags/electronics/" rel="tag">#electronics</a> <a href="/tags/ebike/" rel="tag">#eBike</a> <a href="/tags/hardware/" rel="tag">#hardware</a> <a href="/tags/ohs2025/" rel="tag">#OHS2025</a> <a href="/tags/openhardware/" rel="tag">#openHardware</a> <a href="/tags/opensource/" rel="tag">#openSource</a> <a href="/tags/reverseengineering/" rel="tag">#reverseEngineering</a> <a href="/tags/vanmoof/" rel="tag">#vanMoof</a></p>

<p>My latest blog post: Building the Kilnettle Tape Dispenser</p><p><a href="https://mikecoats.com/building-kilnettle/" rel="nofollow" class="ellipsis" title="mikecoats.com/building-kilnettle/"><span class="invisible">https://</span><span class="ellipsis">mikecoats.com/building-kilnett</span><span class="invisible">le/</span></a></p><p><span class="h-card"><a href="https://mastodon.social/@stephencoyle" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>stephencoyle</span></a></span> presented his Kilnettle Shrine Talking Tape Dispenser as a Lightning Talk at the <span class="h-card"><a href="https://mastodon.social/@oshwassociation" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>oshwassociation</span></a></span> 2025 Open Hardware Summit. He was kind enough to send me one to build.</p><p><a href="/tags/electronics/" rel="tag">#electronics</a> <a href="/tags/hardware/" rel="tag">#hardware</a> <a href="/tags/ohs2025/" rel="tag">#ohs2025</a> <a href="/tags/openhardware/" rel="tag">#openHardware</a> <a href="/tags/opensource/" rel="tag">#openSource</a></p>

<p>My latest blog post: Metronalmost</p><p><a href="https://mikecoats.com/metronalmost/" rel="nofollow"><span class="invisible">https://</span>mikecoats.com/metronalmost/</a></p><p>This metronome, by design, will never, ever, tick exactly once per second. This infuriating object is designed to thwart the goals of <span class="h-card"><a href="https://hackaday.social/@hackaday" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>hackaday</span></a></span>&#x27;s One Hertz Challenge contest.</p><p><a href="/tags/code/" rel="tag">#code</a> <a href="/tags/electronics/" rel="tag">#electronics</a> <a href="/tags/hackaday/" rel="tag">#hackaday</a> <a href="/tags/micropython/" rel="tag">#microPython</a> <a href="/tags/opensource/" rel="tag">#openSource</a> <a href="/tags/openhardware/" rel="tag">#openHardware</a></p>

<p>Do you hate <a href="/tags/broligarchs/" rel="tag">#broligarchs</a>?<br><a href="/tags/billionaires/" rel="tag">#Billionaires</a>? <a href="/tags/aislop/" rel="tag">#AiSlop</a> but still think there is merit in <a href="/tags/ai/" rel="tag">#AI</a>?</p><p>Here is my proposal for a stand alone.<br>OFFGRID COMMUNITY AI SYSTEM.</p><p>That&#x27;s right.Your very own co-op AI</p><p>The calculations are very much back of the envelope, first cut, but quite feasible.<br>A 32billion parameters, frontier level performance compatable open source <a href="/tags/llm/" rel="tag">#llm</a> model. The power requirements is that of 3AC units including cooling. Serves 15-20 concurrent users. 40 households of 4 people each (taking into account actual AI model distributed use metrics and contention ratios) </p><p>40 households, subscribing at $30/month over 2 years + power (solar). Train with your own datasets.<br>Entire set up takes half a rack. </p><p>LETS GO!!! </p><p><a href="/tags/opensource/" rel="tag">#OpenSource</a> <a href="/tags/foss/" rel="tag">#FOSS</a> <a href="/tags/communitytech/" rel="tag">#CommunityTech</a> <a href="/tags/openhardware/" rel="tag">#OpenHardware</a> <a href="/tags/ethicalai/" rel="tag">#EthicalAI</a> <a href="/tags/responsibleai/" rel="tag">#ResponsibleAI</a> <a href="/tags/aiforgood/" rel="tag">#AIForGood</a> <a href="/tags/techforgood/" rel="tag">#TechForGood</a> <a href="/tags/solarpunk/" rel="tag">#Solarpunk</a> <a href="/tags/regenerativeculture/" rel="tag">#RegenerativeCulture</a> <a href="/tags/degrowth/" rel="tag">#Degrowth</a> <a href="/tags/appropriatetechnology/" rel="tag">#AppropriateTechnology</a> <a href="/tags/offgrid/" rel="tag">#OffGrid</a> <a href="/tags/selfsufficient/" rel="tag">#SelfSufficient</a> <a href="/tags/homesteading/" rel="tag">#Homesteading</a> <a href="/tags/permaculture/" rel="tag">#Permaculture</a> <a href="/tags/righttorepair/" rel="tag">#RightToRepair</a> <a href="/tags/makerspace/" rel="tag">#MakerSpace</a> <a href="/tags/diytech/" rel="tag">#DIYTech</a> <a href="/tags/decentralizedtech/" rel="tag">#decentralizedtech</a></p>

<p>New video! I&#x27;m building a Magic Desk style multi program cartridge for the Commodore 264 line of machines.</p><p>YouTube: <a href="https://youtu.be/QFPwqtm2Fc4" rel="nofollow"><span class="invisible">https://</span>youtu.be/QFPwqtm2Fc4</a><br>PeerTube: <a href="https://makertube.net/w/14Hsf9wVFzBa3Pu51r6Fjo" rel="nofollow" class="ellipsis" title="makertube.net/w/14Hsf9wVFzBa3Pu51r6Fjo"><span class="invisible">https://</span><span class="ellipsis">makertube.net/w/14Hsf9wVFzBa3P</span><span class="invisible">u51r6Fjo</span></a></p><p><a href="/tags/commodore/" rel="tag">#Commodore</a> <a href="/tags/c16/" rel="tag">#C16</a> <a href="/tags/c116/" rel="tag">#C116</a> <a href="/tags/plus4/" rel="tag">#Plus4</a> <a href="/tags/commodore264/" rel="tag">#Commodore264</a> <a href="/tags/cartridge/" rel="tag">#Cartridge</a> <a href="/tags/multirom/" rel="tag">#MultiROM</a> <a href="/tags/magicdesk/" rel="tag">#MagicDesk</a> <a href="/tags/c264magiccart/" rel="tag">#C264MagicCart</a> <a href="/tags/opensource/" rel="tag">#OpenSource</a> <a href="/tags/openhardware/" rel="tag">#OpenHardware</a> <a href="/tags/build/" rel="tag">#Build</a> <a href="/tags/diy/" rel="tag">#DIY</a> <a href="/tags/eprom/" rel="tag">#EPROM</a> <a href="/tags/retrocomputing/" rel="tag">#RetroComputing</a> <a href="/tags/vintagecomputing/" rel="tag">#VintageComputing</a></p>

<p>My latest blog post: Introducing Touchy Subject</p><p><a href="https://mikecoats.com/touchy-subject/" rel="nofollow"><span class="invisible">https://</span>mikecoats.com/touchy-subject/</a></p><p>I&#x27;m proud to announce Touchy Subject, a Qwiic/STEMMA QT compatible breakout for the AT42QT2120 capacitive touch sensor; development sponsored by PCBWay.</p><p><a href="/tags/electronics/" rel="tag">#electronics</a> <a href="/tags/openhardware/" rel="tag">#openHardware</a> <a href="/tags/opensource/" rel="tag">#openSource</a></p>

<p>The new UNBRK HEX boards have arrived! An improved version of the UNBRK, this ultra-compact prototyping board for QFP48/64/100/144 MCUs has wider trace geometry for better low-power performance, provisions for header pins, and an improved, unique 0201 prototyping grid to experiment with components reclaimed from <a href="/tags/ewaste/" rel="tag">#ewaste</a>. <a href="/tags/openhardware/" rel="tag">#openhardware</a> released under the CERN-OHL-S and supported by <span class="h-card"><a href="https://social.nlnet.nl/@nlnet" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>nlnet</span></a></span> and <span class="h-card"><a href="https://mastodon.xyz/@NGIZero" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>NGIZero</span></a></span>, you can find its repository at <a href="https://repo.unbina.re/unbinare/UNBRK_HEX" rel="nofollow" class="ellipsis" title="repo.unbina.re/unbinare/UNBRK_HEX"><span class="invisible">https://</span><span class="ellipsis">repo.unbina.re/unbinare/UNBRK_</span><span class="invisible">HEX</span></a> <a href="/tags/fosdem2026/" rel="tag">#fosdem2026</a></p>

<p>New video! Building a new open source 2-button joystick from a kit.</p><p>YouTube: <a href="https://youtu.be/NHX1jUNG4kY" rel="nofollow"><span class="invisible">https://</span>youtu.be/NHX1jUNG4kY</a><br>PeerTube: <a href="https://makertube.net/w/tBrtZyYk5iwmGZXtFX5SwP" rel="nofollow" class="ellipsis" title="makertube.net/w/tBrtZyYk5iwmGZXtFX5SwP"><span class="invisible">https://</span><span class="ellipsis">makertube.net/w/tBrtZyYk5iwmGZ</span><span class="invisible">XtFX5SwP</span></a></p><p><a href="/tags/osastick/" rel="tag">#OSAStick</a> <a href="/tags/joystick/" rel="tag">#Joystick</a> <a href="/tags/opensource/" rel="tag">#OpenSource</a> <a href="/tags/openhardware/" rel="tag">#OpenHardware</a> <a href="/tags/3dprinting/" rel="tag">#3DPrinting</a> <a href="/tags/retrogaming/" rel="tag">#RetroGaming</a> <a href="/tags/retrocomputing/" rel="tag">#RetroComputing</a> <a href="/tags/build/" rel="tag">#Build</a> <a href="/tags/kit/" rel="tag">#Kit</a> <a href="/tags/c64/" rel="tag">#C64</a> <a href="/tags/amiga/" rel="tag">#Amiga</a> <a href="/tags/atari/" rel="tag">#Atari</a> <a href="/tags/commodore/" rel="tag">#Commodore</a></p>