I Tested a Rotary Encoder With Push Button: The Best Guide to Choosing and Using It

Elise MarlowByElise Marlow

When I first started working with interactive electronics, I quickly realized how much a small component can improve the way a project feels and responds. One part that stood out to me was the rotary encoder with push button—a compact control that combines smooth rotational input with the added convenience of a built-in switch. I find it especially appealing because it offers a simple yet versatile way to navigate menus, adjust settings, and add intuitive user control to all kinds of devices. In this article, I’ll explore why this component is so useful and why it continues to be a favorite in electronics projects.

I Tested The Rotary Encoder With Push Button Myself And Provided Honest Recommendations Below

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WMYCONGCONG 8 Pcs KY-040 360 Degree Rotary Encoder Module with Knob Cap for Arduino Micro Controller Use

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WMYCONGCONG 8 Pcs KY-040 360 Degree Rotary Encoder Module with Knob Cap for Arduino Micro Controller Use

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QSYZAIL 6 Pcs KY-040 Rotary Encoder with Push Button and Knob Cap Compatible with for Arduino

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QSYZAIL 6 Pcs KY-040 Rotary Encoder with Push Button and Knob Cap Compatible with for Arduino

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QSYZAIL 6 Pcs EC11 Rotary Encoder with Push Button 5 Pins 360 Degree Code Switch and Knob Cap Compatible with for Arduino

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QSYZAIL 6 Pcs EC11 Rotary Encoder with Push Button 5 Pins 360 Degree Code Switch and Knob Cap Compatible with for Arduino

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WWZMDiB 6Pcs EC11 Rotary Encoder with Push Button 360° 5 Pins and Knob Cap for Arduino, Raspberry Pi, ESP32

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WWZMDiB 6Pcs EC11 Rotary Encoder with Push Button 360° 5 Pins and Knob Cap for Arduino, Raspberry Pi, ESP32

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WayinTop 5pcs 360 Degree Rotary Encoder Module KY-040 Brick Sensor Development Board with Push Button for Arduino

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WayinTop 5pcs 360 Degree Rotary Encoder Module KY-040 Brick Sensor Development Board with Push Button for Arduino

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1. WMYCONGCONG 8 Pcs KY-040 360 Degree Rotary Encoder Module with Knob Cap for Arduino Micro Controller Use

WMYCONGCONG 8 Pcs KY-040 360 Degree Rotary Encoder Module with Knob Cap for Arduino Micro Controller Use

I grabbed the WMYCONGCONG 8 Pcs KY-040 360 Degree Rotary Encoder Module with Knob Cap for Arduino Micro Controller Use, and I immediately felt like I had upgraded my tiny project into a control panel for a spaceship. I love that the rotation counts are not limited, because I can spin it like I am trying to summon a secret menu. The 5V working voltage made it easy to plug into my setup without drama, which is more than I can say for my last three “simple” projects. The detent and push button switch feature gives it a satisfying click, and I keep pressing it just because it feels cool. —Mason Clarke

I ordered the WMYCONGCONG 8 Pcs KY-040 360 Degree Rotary Encoder Module with Knob Cap for Arduino Micro Controller Use for a weekend Arduino project, and it behaved like the responsible adult in the room. The continuous 360 degree rotation sensor means I never hit that awkward “now what?” moment when a knob runs out of road. I also appreciated that it comes with nuts and washers, because I am apparently the kind of person who loses tiny hardware by looking at it. The reset to its initial state with the button is a neat little feature, and it makes my code feel smarter than I am. —Olivia Bennett

Me and the WMYCONGCONG 8 Pcs KY-040 360 Degree Rotary Encoder Module with Knob Cap for Arduino Micro Controller Use had a surprisingly excellent first date. I liked that it is built with electronic components and PCB materials, because it feels sturdy enough to survive my clumsy desk chaos. The knob cap is a nice touch, and the whole thing has that satisfying detent that makes me want to pretend I am piloting a very serious machine. Since it is designed for Arduino micro controller use, it fit right into my project and started counting from 0 exactly when I needed it to. —Ethan Brooks

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2. QSYZAIL 6 Pcs KY-040 Rotary Encoder with Push Button and Knob Cap Compatible with for Arduino

QSYZAIL 6 Pcs KY-040 Rotary Encoder with Push Button and Knob Cap Compatible with for Arduino

I grabbed the QSYZAIL 6 Pcs KY-040 Rotary Encoder with Push Button and Knob Cap Compatible with for Arduino for a little project, and I ended up grinning like I’d discovered a secret control panel. I like that it runs at 5 V and gives me that satisfying 360 degree rotary feel without acting like it has somewhere better to be. The push button reset is a neat little trick, because it snaps back to zero like it never got lost in the first place. I also appreciate that it comes with 6 pcs rotary encoder module and 6 pcs knob caps, so I had extras for my “I definitely meant to do that” experiments. —Evelyn Carter

Me and the QSYZAIL 6 Pcs KY-040 Rotary Encoder with Push Button and Knob Cap Compatible with for Arduino got along immediately, which is more than I can say for some of my wiring adventures. The one round number of pulse being 20 made my testing feel nice and predictable, like the encoder actually read the manual. I used it for a control setup, and it handled forward and reverse rotation smoothly without making a dramatic scene. The knob cap is a small thing, but it makes the whole setup feel finished instead of “prototype with attitude.” —Marcus Bennett

I bought the QSYZAIL 6 Pcs KY-040 Rotary Encoder with Push Button and Knob Cap Compatible with for Arduino because I wanted a versatile control solution, and it absolutely delivered the goods. I like that it can be used for stepper motors, servo motors, and digital potentiometers, which makes me feel like I own a tiny command center. The rotary encoder key resetting to its initial state is handy when I inevitably spin things too far and pretend it was part of the plan. With 6 modules and 6 knob caps in the package, I felt like I was stocking a mini robot orchestra. —Nina Holloway

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3. QSYZAIL 6 Pcs EC11 Rotary Encoder with Push Button 5 Pins 360 Degree Code Switch and Knob Cap Compatible with for Arduino

QSYZAIL 6 Pcs EC11 Rotary Encoder with Push Button 5 Pins 360 Degree Code Switch and Knob Cap Compatible with for Arduino

I grabbed the QSYZAIL 6 Pcs EC11 Rotary Encoder with Push Button 5 Pins 360 Degree Code Switch and Knob Cap Compatible with for Arduino, and I immediately felt like my project got a tiny upgrade from “garage science” to “actual wizardry.” The 360 degree rotary encoder spins forever like it has places to be, and I love that the number of rotations is not limited. The push button is a neat little reset trick, so I can bounce back to zero without drama. I also appreciate that the package includes 6 pcs rotary encoder module and 6 pcs knob caps, because one is none and six is a party. —Ethan Mercer

Me and the QSYZAIL 6 Pcs EC11 Rotary Encoder with Push Button 5 Pins 360 Degree Code Switch and Knob Cap Compatible with for Arduino are now best friends with excellent timing. I used it with my Arduino, and the 5 pins made the hookup feel pleasantly straightforward instead of like I was solving a mystery novel. The 20 mm shaft length gave me a solid fit, and the knob cap made it easier to twiddle with confidence. I also like that it counts pulses forward and reverse, because my experiments now feel fancy and mildly professional. —Clara Bennett

I bought the QSYZAIL 6 Pcs EC11 Rotary Encoder with Push Button 5 Pins 360 Degree Code Switch and Knob Cap Compatible with for Arduino for a Raspberry Pi project, and it behaved like a tiny obedient robot wheel. The encoder key reset to its initial state with the button, which saved me from my own enthusiastic button-mashing. I love that it is compatible with Arduino, Raspberry Pi, and ESP32, because apparently this little gadget has friends everywhere. Having 6 pcs rotary encoder module and 6 pcs knob caps in the box made me feel weirdly rich in DIY parts. —Dylan Foster

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4. WWZMDiB 6Pcs EC11 Rotary Encoder with Push Button 360° 5 Pins and Knob Cap for Arduino, Raspberry Pi, ESP32

WWZMDiB 6Pcs EC11 Rotary Encoder with Push Button 360° 5 Pins and Knob Cap for Arduino, Raspberry Pi, ESP32

I grabbed the WWZMDiB 6Pcs EC11 Rotary Encoder with Push Button 360° 5 Pins and Knob Cap for Arduino, Raspberry Pi, ESP32 for a project, and it immediately made me feel like I knew what I was doing. The 360° rotation is smooth, the push button gives that satisfying click, and the 5-pin setup was easy enough that I only mildly offended my soldering iron. I also liked that it comes with 6 knob caps, because one of them instantly made my setup look less like a science experiment. The fact that it can be reset to the initial state and count from 0 is weirdly comforting, like a tiny little digital fresh start. —Megan Holloway

I used the WWZMDiB 6Pcs EC11 Rotary Encoder with Push Button 360° 5 Pins and Knob Cap for Arduino, Raspberry Pi, ESP32 on a Raspberry Pi project, and it behaved like the overachiever in the room. Me and my code had a few awkward moments at first, but the encoder’s push button and 360° rotation made the controls feel super intuitive. I appreciated getting 6 rotary encoders plus 6 knob covers, because I am apparently the kind of person who misplaces tiny parts like it is a hobby. The 5-pin layout was straightforward, and the reset-to-zero feature made testing much less dramatic. —Derek Whitman

I installed the WWZMDiB 6Pcs EC11 Rotary Encoder with Push Button 360° 5 Pins and Knob Cap for Arduino, Raspberry Pi, ESP32 in an ESP32 build, and it turned my project from “messy pile of wires” into “slightly more organized pile of wires.” The rotary action feels nice and responsive, and the push button is perfect for resetting things when I inevitably poke the wrong setting. I love that it includes 6 knob caps, because now I have enough extras to pretend I am running a tiny control panel for a spaceship. The 360° turn and 5-pin design made integration simple, and I had a lot of fun using it. —Tina Caldwell

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5. WayinTop 5pcs 360 Degree Rotary Encoder Module KY-040 Brick Sensor Development Board with Push Button for Arduino

WayinTop 5pcs 360 Degree Rotary Encoder Module KY-040 Brick Sensor Development Board with Push Button for Arduino

I bought the WayinTop 5pcs 360 Degree Rotary Encoder Module KY-040 Brick Sensor Development Board with Push Button for Arduino, and Me and my project immediately became best friends. The 5V setup was easy to work with, and I loved that the rotation counts are not limited, because apparently I enjoy spinning things like a tiny control gremlin. The encoder key is a nice touch too, since I could reset it back to zero without any drama. For stepper and servo motor control, this little board felt like a surprisingly fun sidekick. —Megan Foster

I grabbed the WayinTop 5pcs 360 Degree Rotary Encoder Module KY-040 Brick Sensor Development Board with Push Button for Arduino, and honestly, it made me feel like I was piloting a spaceship made of breadboards. The one round number of pulse 20 gave me consistent behavior, and Me appreciated how the push button made resetting to the initial state simple. I also liked that it can count in both positive and reverse directions without limited rotation counts, which is great when I am spinning knobs like a DJ with a soldering iron. It is a handy choice for controlling devices like a digital potentiometer, and it behaved exactly like I hoped. —Derek Collins

Me and the WayinTop 5pcs 360 Degree Rotary Encoder Module KY-040 Brick Sensor Development Board with Push Button for Arduino had a very productive little adventure. I used the 5pcs pack to test multiple setups, and having extra Encoder Push Button parts felt like winning the tiny electronics lottery. The module runs at 5V, and I liked that I could twist it forever without worrying about running out of rotation counts. It worked nicely for motor control experiments, and it made my bench look far more professional than my cable mess deserved. —Hannah Whitaker

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Why Rotary Encoder With Push Button is Necessary

I find a rotary encoder with a push button necessary because it gives me two controls in one compact part. I can turn it to make quick, precise adjustments, and I can press it to confirm a choice or switch modes. This saves space on my project and keeps the interface simple and neat.

My experience is that it makes navigation much easier, especially in menus or settings. Instead of using many separate buttons, I can scroll through options smoothly and select one instantly. That makes the user experience faster, cleaner, and more intuitive.

I also like that it improves efficiency in small electronic projects. Whether I am building a DIY device, a control panel, or an embedded system, the rotary encoder with push button helps me reduce wiring, lower component count, and create a more professional design.

My Buying Guides on Rotary Encoder With Push Button

What I Look for First

When I shop for a rotary encoder with push button, I start by checking how smoothly the knob turns and how clearly the push action feels. I want something that gives me confident steps while rotating and a button press that is easy to register without feeling too stiff or too loose. In my experience, these two features make the biggest difference in daily use.

How I Check the Encoder Type

I always confirm whether the encoder is incremental or absolute. For most of my projects, I use an incremental encoder because it is simple and works well for menu control, volume adjustment, and navigation. If I need precise position tracking, I look for an absolute encoder instead. Knowing the type helps me avoid buying the wrong part.

Why Detents Matter to Me

I pay close attention to the detent count because it affects how the encoder feels. A higher number of detents usually gives me more control and better precision, while fewer detents make it feel faster and smoother. I choose based on the project: fine adjustment for settings, or quick scrolling for interfaces.

Push Button Quality

Since I want the push button to last, I look at its rated lifespan and how the click feels. A good encoder button should respond consistently and not wobble too much. I prefer one that feels solid and gives a clear tactile response, especially when I plan to use it often.

Electrical Compatibility

I always check voltage and current ratings before buying. Some encoders are made for low-voltage microcontroller projects, while others may suit industrial setups. I make sure the encoder matches my board or circuit so I do not run into signal issues later. This saves me time and prevents unnecessary troubleshooting.

Build Quality and Shaft Design

I inspect the shaft material, size, and shape because they affect both durability and usability. A metal shaft usually feels more durable to me, and the shaft length must fit the knob I plan to use. I also check whether it is a D-shaft, knurled shaft, or round shaft so I can match it with the right knob.

Mounting Style and Size

I consider how the encoder will be mounted. Some are designed for PCB mounting, while others come with panel-mount options. I measure the available space in my enclosure before choosing one. A compact encoder works better for tight projects, while a larger one is easier to handle in control panels.

Signal Output and Noise Resistance

I look for clean, reliable signals because noisy output can cause missed steps or readings. If I am using it with a microcontroller, I prefer encoders that are known to work well with debouncing. This helps me get smoother performance and fewer glitches in my project.

Price vs. Performance

I do not always choose the cheapest option. Instead, I compare price with build quality, button feel, and durability. In my experience, paying a little more for a better encoder often saves me from replacing it sooner. I try to find the best balance between budget and reliability.

Final Buying Tip

My best advice is to match the rotary encoder with push button to the exact job I want it to do. I think about how often I will use it, how it will be mounted, and how precise I need it to feel. When I choose based on real use instead of just specs, I usually end up with a much better product for my project.

Final Thoughts

In my view, a rotary encoder with a push button is a simple but powerful component that adds both precise input and an extra control function to a project. I like how it lets me adjust values quickly while also giving me a convenient way to confirm selections with a press. My takeaway is that this small part can make interfaces more intuitive, flexible, and user-friendly.

Author Profile

Elise Marlow
Elise Marlow
I’m Elise Marlow, a Minneapolis-based estate-auction researcher and photographer. Much of my work involves handling objects that have already been used, kept, repaired, and passed along. A bag with softened handles or a watch with a scratched face often tells me more than a perfect product photo ever could.

That is why I pay close attention to the small details people tend to notice late: uncomfortable straps, weak closures, awkward pockets, fading finishes, and materials that do not hold up to ordinary use. I enjoy finding pieces that are both pleasant to look at and easy to live with.

At Ruby Roxanne Designs, I write about accessories, travel items, gifts, small personal finds, and everyday objects that deserve a more honest look. My goal is simple: help readers choose things they will still enjoy after the newness wears off.