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Components & Parts > Rotary Encoders

Rotary Encoder + Extras

SKU: ADA377

$8.50 AUD, inc GST
$7.73 AUD, exc GST

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Rotary Encoder + Extras
8.5 AUD

SKU: ADA377

$8.50 AUD, inc GST
$7.73 AUD, exc GST
2 reviews 0 5 4.5
In stock, ships today if ordered before 2PM
Delivered by Mon, 21st of Aug
Shipping Offer

This rotary encoder is the best of the best, its a high quality 24-pulse encoder, with detents and a nice feel. It is panel mountable for placement in a box, or you can plug it into a breadboard (just cut/bend the two mechanical side tabs.) They also include a nice soft-touch knob with an arrow in it, fits perfectly and looks great. This encoder also has a push-button built into it so you can press onto the knob to close a separate switch. One side has a 3 pin connector (ground and two coding pins) and the other side has two pins for a normally-open switch.

Rotary encoders are useful as rotation sensors or selectors and look similar to potentiometers. However they are not like potentiometers at all, so it's important to realize the difference! These rotary encoders rotate all the way around continuously, and are divided up into 24 'segments'. Each segment has a click-y feeling to it, and each movement clockwise or counter-clockwise causes the two switches to open and close. There is no way to know what the current 'position' is - instead you would use a microcontroller to count how many 'clicks' left or right it has been turned. If you need to detect rotational 'position' a potentiometer would be a better choice.

Technical Details

This product is listed in:

Documentation and Resources:
  • The Maker Revolution
  • The Maker Revolution celebrates the creation of new devices and the modification of existing ones - the transition from a consumer buying goods to eventually having a major part in their creation. The Maker Revolution places strong emphasis on free (...
  • How to Use Rotary Encoders
  • Hello and welcome to our tutorial on using rotary encoders. Today we’re going to be taking a look at what is a rotary encoder, how does it work, why we would use it over other sensory inputs and creating code to use them. Rotary encoders are el...

Product Comments


Customer Reviews

  1. Review by Neil verified purchaser
    Rating
    100

    This works well and is as described. There is a lot of stuff out there on how to read the output from rotary encoders, but all you really need to know is in the diagram (labelled 'Quadrature Output Table') on the first page of the PEC11 data sheet linked to from the product page.

    Unsurprisingly, you need to do some debouncing on the encoder inputs - otherwise the results can be erratic! (Posted on 1/04/2017)

  2. Review by Daniel - Works well, output accuracy is great for my speed control application verified purchaser
    Rating
    80

    Rubber knob is difficult to attach/remove though (Posted on 2/10/2014)

We deliver Australia-wide with these options:

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Unit 18, 132 Garden Grove Parade
Adamstown
NSW, 2289
Australia

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