Matthijs Kooijman<p>My highlights from <a href="https://fosstodon.org/tags/HackadayEurope" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>HackadayEurope</span></a> last weekend:</p><p> - History of the Dutch hacker camps (e.g. predecessors of <a href="https://fosstodon.org/tags/why2025" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>why2025</span></a>): <a href="https://www.youtube.com/watch?v=V-UoctcYa88" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">youtube.com/watch?v=V-UoctcYa8</span><span class="invisible">8</span></a><br> - NFC-based payment system for a festival: <a href="https://www.youtube.com/watch?v=0sE78ekHIJk" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">youtube.com/watch?v=0sE78ekHIJ</span><span class="invisible">k</span></a><br> - More recyclable or even compostable electronics: <a href="https://www.youtube.com/watch?v=rG-R48RJ9Iw" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">youtube.com/watch?v=rG-R48RJ9I</span><span class="invisible">w</span></a><br> - Using IR cameras to look inside microchips: <a href="https://www.youtube.com/watch?v=8aLW4UEuJ_c" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">youtube.com/watch?v=8aLW4UEuJ_</span><span class="invisible">c</span></a><br> - Neonpixels, old-skool core memory and 6502 processor (perfect to learn microcontrollers): <a href="https://www.youtube.com/watch?v=Gw9w2a9JBvY" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">youtube.com/watch?v=Gw9w2a9JBv</span><span class="invisible">Y</span></a></p>