In this lesson, we will learn how to measure DC voltage using the AnalogRead feature of Arduino. We will begin by clarifying the distinction between analog and digital signals. Then, we will explore the concept of Analog-to-Digital Converters (ADCs), specifically focusing on their 10-bit and 12-bit resolutions. Following this, the variable resistor, or potentiometer, will be explained in detail, and its resistance will be measured using a multimeter for practical understanding. We will then proceed to read the potentiometer's output voltage using a basic method, and subsequently, explore four additional methods that involve code to read and display the proper voltage values, rather than the raw 0-1023 analog readings.

Use Chapters from timeline or click on the time
00:00 Introduction
1:30 What is AnalogRead
3:55 Analog to Digital Conversion ADC
7:37 What's a Potentiometer
11:02 Measuring resistance using Multimeter
13:05 Basic : Reading Voltage Using Arduino
15:05 Basic : code explained
17:31 Method 1: Reading Voltage
19:19 Method 2: Reading Voltage
20:55 Method 3: Reading Voltage
23:05 Printing V at the end of voltage
23:55 Setting printing precision