NaiaRLOMaster(ella/elle/she/her)<p>Remember my auto sharpener retrofit? Well, afternoon of testing and calibrating the ACS712 integration. This sensor detects DC current through its terminal block.</p><p>First I calculated the filter in <a href="https://tech.lgbt/tags/Arduino" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Arduino</span></a> IDE and then loaded into <a href="https://tech.lgbt/tags/OpenPLC" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>OpenPLC</span></a> editor.</p><p>This is the result:</p>