<p><img fetchpriority="high" decoding="async" class="alignnone wp-image-7690" src="https://theamphour.com/wp-content/uploads/2025/03/690-1024x1024.jpg" alt="" width="600" height="600" srcset="https://theamphour.com/wp-content/uploads/2025/03/690-1024x1024.jpg 1024w, https://theamphour.com/wp-content/uploads/2025/03/690-300x300.jpg 300w, https://theamphour.com/wp-content/uploads/2025/03/690-150x150.jpg 150w, https://theamphour.com/wp-content/uploads/2025/03/690-768x768.jpg 768w, https://theamphour.com/wp-content/uploads/2025/03/690.jpg 1200w" sizes="(max-width: 600px) 100vw, 600px" /></p>
<ul>
<li class="maps-to-line">Meetup.com doubled their prices so <a href="https://lu.ma/triangle3H">the 3H Triangle group moved to Luma</a> (same is true for SF, Seattle)</li>
<li>Note taking apps after Evernote was gutted: <a href="https://joplinapp.org/">Joplin</a>, <a href="https://obsidian.md/">Obsidian</a></li>
<li class="maps-to-line"><a href="https://www.youtube.com/watch?v=KqlHjIVyzOA">Battery leakage in a DMM</a></li>
<li class="maps-to-line">Causes of leak</li>
<li class="maps-to-line"><a href="https://photos.app.goo.gl/r1HaK8Bx9mYavRAh8">The PCB of a Tonie box</a> with an SD card glued in place. Board has an ESP32-S3. (<a href="https://us.tonies.com/pages/toniebox">Product page</a>)</li>
<li class="maps-to-line"><a href="https://www.youtube.com/watch?v=9lC-k5yU9W4">Design decisions &#8211; Latched / unlatched EEVblog video</a></li>
<li class="maps-to-line"><a href="https://www.eevblog.com/forum/beginners/pulse-extender-circuit/">Pulse stretcher</a></li>
<li class="maps-to-line">3rd mode &#8216;break on open&#8217;</li>
<li class="maps-to-line">Chris is working on a design inspired by <a href="https://www.apple.com/airtag/">the Apple AirTag</a></li>
<li><a href="https://blog.golioth.io/bluetooth-to-cloud/">Golioth just launched Bluetooth support</a> (recorded prior to this announcement)</li>
<li class="maps-to-line">It has an <a href="https://www.nordicsemi.com/Products/nRF52840">nRF52840</a> and NFC onboard, with a bunch of sensors.</li>
<li class="maps-to-line">It won&#8217;t work with <a href="https://www.icloud.com/find/">FindMy</a></li>
<li class="maps-to-line"><a href="https://nroottag.github.io/">nroot tag</a></li>
<li class="maps-to-line"><a href="https://www.youtube.com/watch?v=71jBX5N3wcM">Linus video about M4 Mini</a></li>
<li class="maps-to-line"><a href="https://www.youtube.com/watch?v=eLtE2kMTVOQ">Jeff Geerling talking about storage</a></li>
<li class="maps-to-line"><a href="https://www.youtube.com/watch?v=qF4vZxbSmjo">MKBHD iPhone16e</a></li>
<li class="maps-to-line"><a href="https://www.3gpp.org/technologies/ntn-overview">NTN</a></li>
<li class="maps-to-line"><a href="https://en.wikipedia.org/wiki/Key_finder">Keyfinders </a></li>
<li><a href="https://www.youtube.com/watch?v=Ny8-G8EoWOw">The Clapper</a></li>
<li class="maps-to-line"><a href="https://www.everythingrf.com/community/what-is-a-saw-filter">SAW filters</a></li>
<li class="maps-to-line"><a href="https://www.youtube.com/watch?v=riBwRC_CaAA">Dave&#8217;s talk at UNSW (months ago)</a></li>
<li class="maps-to-line"><a href="https://www.eevblog.com/forum/beginners/retired-engineers-how-did-you-learn-using-oscilloscope-in-80s-without-internet!/?topicseen">How did you learn about oscilloscopes without the internet</a></li>
<li class="maps-to-line">AC power issues &#8211; brownout? need to scope power</li>
<li class="maps-to-line">Scale of electricity</li>
</ul>

#691 – System Designer Lets You Try Every Part with Michael Gielda

A weekly podcast about the electronics industry. Occasional guests. Lots of laughs.