Back to Arduino

Integrated Circuits rotary encoder ky-040 Brick Sensor Development for arduino KY-040 Encoder Module

58 reviews
100% of buyers enjoyed this product! 374 orders

$1.92 $1.83

491 in stock

Buyer protection
Safe shopping
Easy returns and refunds
Free shipping worldwide

100% Brand new and high quality.
Material: Electronic components + PCB
Size: About 31 * 19 * 29mm / 1.22″ * 0.75″ * 1.14″
Main color: Black
Working voltage: 5V

Pulse circle: 20



Brand Name





voltage regulator






rotary encoder ky-040


for arduino KY-040



Shipping and delivery

We are proud to offer international shipping services that currently operate in over 200 countries and islands worldwide. Nothing means more to us than bringing our customers great value and service. We will continue to grow to meet the needs of all our customers, delivering a service beyond all expectation anywhere in the world.

How do you ship packages?

Packages from our warehouse in China will be shipped by ePacket or EMS depending on the weight and size of the product. Packages shipped from our US warehouse are shipped through USPS.

Do you ship worldwide?

Yes. We provide free shipping to over 200 countries around the world. However, there are some locations we are unable to ship to. If you happen to be located in one of those countries we will contact you.

What about customs?

We are not responsible for any custom fees once the items have shipped. By purchasing our products, you consent that one or more packages may be shipped to you and may get custom fees when they arrive to your country.

How long does shipping take?

Shipping time varies by location. These are our estimates:

Location *Estimated Shipping Time
United States 10-30 Business days
Canada, Europe 10-30 Business days
Australia, New Zealand 10-30 Business days
Central & South America 15-30 Business days
Asia 10-20 Business days
Africa 15-45 Business days
*This doesn’t include our 2-5 day processing time.

Do you provide tracking information?

Yes, you will receive an email once your order ships that contains your tracking information. If you haven’t received tracking info within 5 days, please contact us.

My tracking says "no information available at the moment".

For some shipping companies, it takes 2-5 business days for the tracking information to update on the system. If your order was placed more than 5 business days ago and there is still no information on your tracking number, please contact us.

Will my items be sent in one package?

For logistical reasons, items in the same purchase will sometimes be sent in separate packages, even if you have specified combined shipping.

If you have any other questions, please contact us and we will do our best to help you out.

Refunds & returns policy

Order cancellation

All orders can be cancelled until they are shipped. If your order has been paid and you need to make a change or cancel an order, you must contact us within 12 hours. Once the packaging and shipping process has started, it can no longer be cancelled.


Your satisfaction is our #1 priority. Therefore, you can request a refund or reshipment for ordered products if:

  • You do not receive them within the guaranteed time (45 days not including 2-5 day processing)
  • You receive the wrong item
  • You do not want the product you have received (but you must return the item at your expense and the item must be unused)

We do not issue the refund if:

  • Your order does not arrive due to factors within your control (e.g. providing the wrong shipping address)
  • Your order does not arrive due to exceptional circumstances outside our control (e.g. not cleared by customs, delayed by a natural disaster)
  • Other exceptional circumstances outside the control of

*You can submit refund requests within 15 days after the guaranteed period for delivery (45 days) has expired. You can do it by sending a message on page.

If you are approved for a refund, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 14 days.


If for any reason you would like to exchange your product, perhaps for a different size in clothing. You must contact us first and we will guide you through the steps.

Please do not send your purchase back to us unless we authorise you to do so.

Real customer reviews

58 reviews
100% of buyers enjoyed this product!
5 stars
( 50 )
4 stars
( 8 )
3 stars
( 0 )
2 stars
( 0 )
1 star
( 0 )
  1. Y***u

    All okayno!☼

  2. A***n

    In two words, the device is good. But sometimes I see click+ and immediately click- in my Arduino. I don’t know if this is a software error or the device’s problem.

  3. S***f

    Came about a month is not damaged in the work did not break

  4. S***n

    Thank You

  5. E***v

    Very good

  6. V***v

    Flux is not washed. Small backlash, contacts bent. Uncritical. Works.

  7. M***i

    All received, thank you!

  8. K***v

    Delivery about a month, all whole

  9. Customer

    Everything came. Works.

  10. P***n

    Very long went the goods!

  11. S***s

    Packed well all the whole went only long

  12. A***v

    It’s been a long time! I haven’t checked in yet. Behind the board, which nozzles i do not know…

  13. B***v

    The fee is all in flux and the nuts are not, otherwise everything is ok.

  14. B***t


  15. Customer


  16. R***n

    Item received! In appearance all qualitatively!

  17. M***n

    To nizhny novgorod came in 28 days. Visually everything is ok.

  18. E***n

    Look good

  19. A***v


  20. V***v

    Long shipping

  21. D***v


  22. A***v


  23. I***n

    Everything works. Thank you!

  24. M***n

    Excellent store, product arrived in perfect condition, fast shipping. Thanks!

  25. I***a

    Unfortunately, the goods did not come ( Although the money and returned, sorry for lost, e from waiting, time.

  26. A***r

    It’s all right. And ptn taki hlo!

  27. V***v

    Horror goods went more than 2 months!!!

  28. A***v

    Good, Very save package;)

  29. U***S

    Delivery is just a guard, more than two months.

  30. A***r

    Thank you

  31. Customer

    Came in 40 days

  32. A***v

    Works exactly. Everything suits me, it went a long time

  33. A***s


  34. C***v

    Very long shipping. Accepted for transportation 17,02, 19, delivered to the rostov region 11,04, 19. On the territory of the russian federation do not track Encoder whole

  35. R***r

    It’s been a long time, almost two months.

  36. Customer

    Goods shol very long

  37. A***n

    Works fine

  38. V***u

    The goods are stuck in the belarusian post. As a result, the parcel arrived in 50 days. And so, all the norms!

  39. M***N

    It came in a month. Packed well, without damage. Until i put it. The project will be later.

  40. V***S

    Thank you!

  41. I***v

    Everything works. It’s okay.

  42. V***m

    Goods apparently lost by mail

  43. D***v

    The product corresponds to the description. Packed well.

  44. K***m

    Gaver advised these. Peel normally.

  45. A***y


  46. M***h

    Well sooo long delivery, slightly bent contacts. Otherwise normal.

  47. A***v

    Received thanks!!!!

  48. T***a

    Track tracked, parcel came well packed. Visually everything is ok. I will still order from this store.

  49. S***n


  50. Customer

    As in the photo. I’m happy. The parcel goes for a month and a half in Surgut (hmao-yugra).

  51. N***n

    Everything works

  52. A***a

    All ok

  53. R***r


  54. S***v

    Thank you very much!

  55. O***v

    Very good! Seller recommend!

  56. D***v

    Fast enough delivery, qualitatively executed.

  57. O***v


  58. D***n

    Works great

Write a review

Shopping cart


No products in the cart.