Hacking Electronics: Learning Electronics with Arduino and Raspberry Pi, Second Edition by Simon Monk

Author:Simon Monk
Language: eng
Format: epub, azw3
Publisher: McGraw-Hill Education LLC
Published: 2017-10-03T04:00:00+00:00

Measuring Voltage with an Arduino

The pins labeled A0 to A5 on an Arduino can be used as analog inputs. That is, you can use them to measure voltage. To demonstrate this, you will use the variable resistor (trimpot) as a voltage divider connected to A3 (Figure 6-17).

FIGURE 6-17 A variable resistor and Arduino

If you skipped the section on voltage dividers in Chapter 3 titled “Using Resistors to Divide a Voltage,” you probably should go back and have a quick look now.

You Will Need

To try this example, you will need the following items.

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