Bornach<p>Finally got around to editing video of my experiments in improving response times of slow low-cost <a href="https://fosstodon.org/tags/optocoupler" class="mention hashtag" rel="tag">#<span>optocoupler</span></a> <a href="https://fosstodon.org/tags/optoisolator" class="mention hashtag" rel="tag">#<span>optoisolator</span></a> ICs such as the <a href="https://fosstodon.org/tags/PC817" class="mention hashtag" rel="tag">#<span>PC817</span></a></p><p><a href="https://youtu.be/s1l86nTIWEE" target="_blank" rel="nofollow noopener noreferrer" translate="no"><span class="invisible">https://</span><span class="">youtu.be/s1l86nTIWEE</span><span class="invisible"></span></a><br />The improved speed was sufficient to pass <a href="https://fosstodon.org/tags/MIDI" class="mention hashtag" rel="tag">#<span>MIDI</span></a> data (31250 bits/s) through it</p><p><a href="https://fosstodon.org/tags/cascode" class="mention hashtag" rel="tag">#<span>cascode</span></a> <a href="https://fosstodon.org/tags/electronics" class="mention hashtag" rel="tag">#<span>electronics</span></a> <a href="https://fosstodon.org/tags/transistor" class="mention hashtag" rel="tag">#<span>transistor</span></a> <a href="https://fosstodon.org/tags/amplifier" class="mention hashtag" rel="tag">#<span>amplifier</span></a> <a href="https://fosstodon.org/tags/YouTube" class="mention hashtag" rel="tag">#<span>YouTube</span></a></p>