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Video 23: Reading Voltage of potentiometer
====================================================

Learn how to use the ESP32 module to read DC voltage from a potentiometer and adjust LED brightness through analog to digital conversion and PWM.

* **Potentiometer Basics**: Understanding how potentiometers measure voltage and their role in controlling LED brightness.
* **Analog to Digital Conversion**: How to set up the ESP32 to convert analog signals from a potentiometer to digital values.
* **PWM for LED Dimming**: Implementing pulse-width modulation on the ESP32 to adjust LED brightness based on potentiometer readings.
* **Project Setup**: Detailed guide on wiring, coding, and troubleshooting for effective voltage measurement and LED control.

**Video**

.. raw:: html

    <iframe width="700" height="500" src="https://www.youtube.com/embed/QSYTEytRKHI?si=0pX6U4YBnnTNMBSJ" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" allowfullscreen></iframe>

.. **Related On-line Tutorials**

.. * :ref:`ar_potentiometer`