Stefano<p>Part 2. After doing several tests with the read/write head of an old Hard Drive, which was my first idea for moving the pen back and forth, I ultimately abandoned this idea when I just couldn't figure out how to drive it with an Arduino Micro-controller, which I had chosen for this project, so I could learn how to program them. <a href="https://mstdn.ca/tags/maker" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>maker</span></a> <a href="https://mstdn.ca/tags/diy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>diy</span></a> <a href="https://mstdn.ca/tags/earthquake" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>earthquake</span></a> <a href="https://mstdn.ca/tags/arduino" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>arduino</span></a> <a href="https://mstdn.ca/tags/servomotor" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>servomotor</span></a> <a href="https://mstdn.ca/tags/seismograph" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>seismograph</span></a></p>