Axel ⌨🐧🐪🚴😷 | R.I.P Natenom<p><span class="h-card"><a href="https://mastodon.social/@arturo182" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>arturo182</span></a></span>: A rather simple project, but I love the outcome: A <a href="https://chaos.social/tags/RaspberryPiZero" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>RaspberryPiZero</span></a> based, continuous <a href="https://chaos.social/tags/CO2" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>CO2</span></a> "Traffic Light" as an indicator when the windows need to be opened for some fresh air, especially more <a href="https://chaos.social/tags/oxygen" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>oxygen</span></a>: <a href="https://github.com/xtaran/co2-led-meter" rel="nofollow noopener noreferrer" target="_blank"><span class="invisible">https://</span><span class="ellipsis">github.com/xtaran/co2-led-mete</span><span class="invisible">r</span></a></p><p>It requires no soldering, just plug a bunch of components together (should all be available at <a href="https://shop.pimoroni.com/" rel="nofollow noopener noreferrer" target="_blank"><span class="invisible">https://</span><span class="">shop.pimoroni.com/</span><span class="invisible"></span></a>) and run a short <a href="https://chaos.social/tags/Python" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Python</span></a> script.</p><p>Motivation was Sensirion's USB CO₂ traffic light where the IMHO rather high thresholds can't be changed.</p>