IT News<p>Designing an Open Source Multimeter: the HydraMeter - Our hacker [John Duffy] wrote in to let us know about a video he put together to e... - <a href="https://hackaday.com/2025/07/20/designing-an-open-source-multimeter-the-hydrameter/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">hackaday.com/2025/07/20/design</span><span class="invisible">ing-an-open-source-multimeter-the-hydrameter/</span></a> <a href="https://schleuss.online/tags/digitalmultimeter" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>digitalmultimeter</span></a> <a href="https://schleuss.online/tags/microcontrollers" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>microcontrollers</span></a> <a href="https://schleuss.online/tags/raspberrypi" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>raspberrypi</span></a> <a href="https://schleuss.online/tags/hydrameter" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>hydrameter</span></a> <a href="https://schleuss.online/tags/voltmeter" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>voltmeter</span></a> <a href="https://schleuss.online/tags/ohmmeter" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ohmmeter</span></a> <a href="https://schleuss.online/tags/ammeter" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ammeter</span></a></p>