Find a Retailer
SHOP LEARN BLOG SUPPORT 0LOG IN REGISTER
PRODUCT MENU
find products, tutorials, etc...
EDUCATION FORUM
SparkFun Electronics ® / Niwot, Colorado / Customer Service / Site Map / Terms of Service / Privacy Policy
Need Help?
HOME / PRODUCT CATEGORIES / SWITCH / ROTARY ENCODER - 1024 P/R (QUADRATURE)
Customer Reviews
images are CC BY 2.0
SHARE
Rotary Encoder - 1024 P/R (Quadrature)
COM-11102
6
DESCRIPTION FEATURES DOCUMENTS
This 1024 pulse per rotation rotary encoder outputs gray code which you can
interpret using a microcontroller and find out which direction the shaft is turning
and by how much. This allows you to add feedback to motor control systems.
Encoders of this kind are often used in balancing robots and dead reckoning
navigation but it could also be used as a very precise input knob.
COMMENTS 39 REVIEWS 6
4.2 out of 5
Based on 6 ratings:
2 of 2 found this helpful:
pretty cool, but may not handle stress well
about 2 years ago by Member #595097 verified purchaser
I built a persistence of motion LED display for a wall clock using one of these bad boys. It has great precision
and very little resistance or inertia, so it worked great for my project. The only problem is that it seems to have
lost accuracy over time. I believe I put too much stress perpendicular to the axle. If you use one of these you
should take care to reduce stress on the axle.
The measurements are metric, so it was slightly difficult to find a 6mm bolt to mate with the axle at my hardware
store.
Four stars because it operates within its advertised limits but I wish it was just a little sturdier for my project. I’m
going to buy another one and hope that I damaged it during construction or transportation and not regular
use.
Good Encoders
about 2 years ago by Member #796323 verified purchaser
Overall good encoders, they are a bit larger than I was expecting, but that’s not really an issue. Overall they
are pretty robust and work great in pair with the sabertooth and kangaroo motor controller combo. For this
price you can’t really beat the performance.
A pretty good encoder for a great price, but there's a catch...
about a year ago by Member #665489 verified purchaser
I wanted a cheap encoder so I could mock up a HW setup at my desk for testing. I found the build to be pretty
good. Had plenty of cable and is pretty much exactly what you would expect. That is except for the Z output.
The spec sheet says that the output is low and gives a high signal once a revolution. I found that the z out is
actually the inverse of that, it’s high and goes low once a revolution. I ended up having to use a transistor and
a pull up to make my mock setup consistent but am still a little bummed that the spec-sheet doesn’t actual
match the encoder.
Works well in early testing
about a year ago by Member #153871 verified purchaser
I combined this with a Phidgets 1047 USB encoder interface, and the combo works very well. The index mark
signal is very useful in centering the encoder readings. This is going into an installation where it will get heavy
use, and I’m hopeful it holds up well over time.
work great
about a year ago by Fred4 verified purchaser
The encoders work really well. They mount easily and the flex couplings work great to absorb any imperfect
alignments. They also come with lots of extra wire so they can be run quite a long distance which I appreciated.
One thing to be aware of is that they have a lot of resolution with 1024 ticks per revolution. This is great but
users should be aware that depending on expected RPM it might be to much for something like an Arduino to
keep up with. For example I am running 4 of these at 50RPM which is over 2 million interrupts per second. I
had to use a phidgets FPGA board in order to keep up with the number of interrupts. This isn’t a problem, just
something that users should be aware of. I do have a minor criticism though, the wire outputs are color coded
very funny. For example brown is VCC and blue is ground while orange is Z output. Not a real problem but it
was a bit confusing at first.
How to use it?
last year by Member #683411 verified purchaser
Does anyone has same question? Can someone post a good demo? Like how to set it up and how to test it,
thanks
5 star 2
4 star 3
3 star 1
2 star 0
1 star 0
Currently viewing all customer reviews.
START
SOMETHING.
SUBSCRIBE TO NEWSLETTER
SUBSCRIBE TO NEWSLETTER
In 2003, CU student Nate Seidle blew a power supply in his dorm room
and, in lieu of a way to order easy replacements, decided to start his
own company. Since then, SparkFun has been committed to sustainably
helping our world achieve electronics literacy from our headquarters in
Boulder, Colorado.
No matter your vision, SparkFun's products and resources are designed
to make the world of electronics more accessible. In addition to over
2,000 open source components and widgets, SparkFun offers
curriculum, training and online tutorials designed to help demystify the
wonderful world of embedded electronics. We're here to help you start
something.
About Us
About SparkFun
SparkFun Education
Feeds
Jobs
Contact
Help
Customer Service
Shipping
Return Policy
FAQ
Chat With Us
Programs
Become a Community Partner
Community Stories
Custom Kit Requests
Tell Us About Your Project
Sell Your Widget on SparkFun
Become a SparkFun Distributor
Large Volume Sales
Community
Forum
SparkFun IRC Channel
Take the SparkFun Quiz
SparkFun Kickstarter Projects
Distributors
What's on your mind?
For which department?
General
Please include your email address if you'd like us to respond to a
specific question.
SUBMIT
✉