Learn Electronics With Arduino: An Illustrated Beginner's Guide to Physical Computing (Make: Technology on Your Time) by Jody Culkin & Eric Hagan

Author:Jody Culkin & Eric Hagan [Culkin, Jody & Hagan, Eric]
Language: eng
Format: epub
ISBN: 1680453742
Amazon: B075TXR9ZL
Publisher: Maker Media, Inc
Published: 2017-09-11T21:00:00+00:00

If you want several LEDs to glow the same brightness, you can place the LEDs in parallel and know that they will all receive the same voltage, unchanged by the number of LEDs in place. You aren’t able to light more than a few LEDs in parallel from your Arduino, however, since you’re limited by the amount of current provided.

Note

Equal voltage will pass through all components that are in parallel.

Building a Two-LED Series Circuit

Now we’re going to adjust our circuit, placing the LEDs so they are in an arrangement called series. Components that are in series are placed one right after each other. It is easy to see this by looking at Figure 5-48, where two LEDs are shown one right after the other; in fact, the resistor is also in series in this arrangement. Most circuits will be a combination of components arranged in series and in parallel.

Figure 5-48: Schematic for the circuit with LEDs in series

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