# Lesson 22 — ADC / Arduino Lab

<p class="block-synopsis">Wire the Sharp IR sensor, apply the Objective 2.5 ADC math, and calibrate a voltage-to-distance conversion to ±0.5 cm — the range channel you reuse in Project 2.</p>

:::{admonition} Due at this lesson
:class: warning

Gradescope lab questions
:::

<div class="block-toc">
  <a class="bt-card bt-practice" href="ADC_Arduino_Lab.html">
    <span class="bt-kind">Handout</span>
    <h4>ADC / Arduino Lab</h4>
    <p>Wiring, the Due's ADC math, and a calibrated voltage-to-distance conversion good to ±0.5 cm.</p>
  </a>
  <a class="bt-card bt-slides" href="../_static/slides/ECE_215_Lesson22.pdf">
    <span class="bt-kind">Slides</span>
    <h4>Lesson 22 deck</h4>
    <p>The slides used in class, as a PDF.</p>
  </a>
</div>