KY-040 Rotary Encoder Module with Push Button
Prices updated: 12 Oct 2026
Compare prices
| Store | product | Price | View in store |
|---|---|---|---|
 Future ElectronicsCheapest | Rotary Angle Encoder Module | 45 EGP | View in store |
 RAM Electronics | Rotary Encoder Module (SKU#KY040) | 60 EGP | View in store |
Price history
Lowest daily price, last 90 days
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Lowest price recorded: 45 EGP
About this product
A rotary encoder module that measures shaft rotation. It outputs two square-wave pulse signals whose phase order shows the direction of rotation, and counting the pulses gives the angle and RPM of the shaft. Useful for menus, speed and position feedback, and user input with Arduino and other microcontrollers.
Specifications
- Operating voltage
- 3-5V
- Encoder type
- Incremental (quadrature)
- Output
- Two pulse signals (A and B) for direction and count
- Built-in switch
- Push button
- Measures
- Angle and RPM
Frequently asked questions
What is the price of KY-040 Rotary Encoder Module with Push Button in Egypt?
KY-040 Rotary Encoder Module with Push Button currently costs between 45 and 60 EGP across 2 offers in Egypt.
Where can I buy KY-040 Rotary Encoder Module with Push Button in Egypt?
KY-040 Rotary Encoder Module with Push Button is available from Future Electronics and RAM Electronics. Compare the offers above to find the best price.
How do I determine the rotation direction?
Read the A and B pins. The order in which the two square-wave signals change tells you whether the shaft turns clockwise or counter-clockwise.
What voltage does it need?
The listed operating voltage is 3 to 5 V, so it works with 3.3 V and 5 V boards. Connect the A and B outputs to digital input pins, preferably ones that support interrupts, for accurate pulse counting.
