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Arduino Relays

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Avatar for Harrington Joseph Harrington Joseph
March 28, 2013
Technology
150
3

Arduino Relays

Small talk about using relays with Arduino.

Avatar for Harrington Joseph

Harrington Joseph

March 28, 2013

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Transcript

  1. RELAYS ELECTRO MECHANICAL/MAGNETIC SWITCHES Harrington Joseph March 28, 2013 LA

    Arduino Meetup
  2. None

  3. DEFINITION 1. Electrical operated switch. 2. Toggle on/off by energizing

    a coil. 3. Amplifier (large amount of power with low power).

  4. HOW DOES IT WORK?

  5. • Iron core wrapped around by a copper coil. •

    Poles and throws (contacts). ELECTROMAGNETISM

  6. APPLICATIONS • Amplify a digital signal (control high voltage with

    a low voltage signal). • Control of multiple electric circuits by one signal. • Isolate the controlled circuit from the controlling one. • Logical functions (AND gate - serial, OR gate - parallel, etc). • Circuit breakers. • Many more.

  7. PLUGGING A RELAY TO AN ARDUINO

  8. • VDC (Volts of direct current) - 5V or 3V.

    • Amount of volts to control (AC / DC). WHICH ONE TO BUY?

  9. RELAY MODULES

  10. INSTALLATION

  11. WARNINGS • If you are working with high voltage be

    careful. • Unplug the power before you solder, add or remove pieces.

  12. THANKS :) TWITTER: @harph WEB: hjoseph.com GITHUB: github.com/harph SLIDES: speakerdeck.com/hjoseph