How to Use Rotary Encoders on the Arduino - Ultimate Guide to the Arduino #25

Rotary encoders are commonly used as dials for volume control, menu navigation, and more. Learn how they work, how to connect them with switch de-bouncing, and how to program them with interrupts on the Arduino.
This is tutorial #25 in the Ultimate Guide to the Arduino, a complete video course on the Arduino microcontroller with 45 lessons that are designed to teach anyone how to master the Arduino at any skill level. Visit our KZbin channel page to watch the entire series!
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[@dystopian-me]

this work really well BUT just for anti clockwise, for closkwise debounce not much effect

[@PacTel54321]

Thank you for this tutorial. I have a rotary encoder based speed control that operates open loop; I.E. there is no way to tell what the setting is except from the motor it is driving. I intend to sniff the encoder signals and monitor them with a counter for feedback on the speed setting. This tutorial will help me get stated. An FYI; you could possibly damage the Schmitt trigger (CMOS IC) if too large a capacitor is connected to the inputs; upon power-down the caps will discharge into internal protection diodes because they become forward biased (VCC becomes GND). Check the data sheet on the part.

[@Mr123bohemian]

Thank you, I have question, I want to use a 4 relay using 4 hall effect sensors to activate them individually, it's for fuel injection system, I'm just finding it hard to find anything on this, your help would be very much appreciated, I'm a newbie to all of this, kind regards

[@woolfy02]

cool project! Makes me want to dig out my box of electronics and start making things again. lol

[@Leftypounder-fz2rb]

A very well done, useful video. Thank you.

[@t1d100]

Nice

[@PhG1961]

Nice and very usefull!