chapter-item expanded "><a href="../../chapter_3/summary.html"><strong aria-hidden="true">3.5.</strong> Summary</a></li></ol></li><li class="chapter-item expanded "><a href="../../chapter_4/index.html"><strong aria-hidden="true">4.</strong> Setting Up Development Environment</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../../chapter_4/4.1/index.html"><strong aria-hidden="true">4.1.</strong> ESP-IDF Overview</a></li><li><ol class="section"><li class="chapter-item expanded "><a 