5pcs 360 Degree Rotary Encoder Module KY-040 Brick Sensor Development Board with Push Button for Arduino
Specification of Rotary Encoder Module:Model: KY-040Working Voltage: 5VMaterial: PCB + BrassWeight: 10gSize: 32 x 19 x 30mmThe pin outs for this rotary encoder are identified in the below.CLK: Encoder Pin ADT: Encoder Pin BSW: No Pushbutton Switch+: 5V SupplyGND: Encoder Pin CPin connected to for Arduino:CLK = [pin 3]DT = [pin 4]Button = [pin 5]+ = [Pin 5V]GND = [pin GND]Pin connected to Raspberry Pi:CLK = GPIO16 [pin 36]DT = GPIO15 [pin 10]SW = GPIO14 [pin 8]+ = 3.3V [pin 1]GND = ground [pin 6]
- High-precision sensing output for advanced robotic control
- Dual-voltage logic compatibility supporting 3.3V and 5.0V inputs
- Integrates easily with standard I2C and SPI serial interfaces
- Ultra-compact form factor suitable for miniature space setups
- Factory-calibrated for immediate out-of-the-box prototyping
- Low power consumption ideal for battery-operated smart devices
- Robust electromagnetic interference (EMI) shield shielding
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(855) I-BUY-ROBO (855) 428-9762Specification of Rotary Encoder Module:
Model: KY-040
Working Voltage: 5V
Material: PCB + Brass
Weight: 10g
Size: 32 x 19 x 30mm
The pin outs for this rotary encoder are identified in the below.
CLK: Encoder Pin A
DT: Encoder Pin B
SW: No Pushbutton Switch
+: 5V Supply
GND: Encoder Pin C
Pin connected to for Arduino:
CLK = [pin 3]
DT = [pin 4]
Button = [pin 5]
+ = [Pin 5V]
GND = [pin GND]
Pin connected to Raspberry Pi:
CLK = GPIO16 [pin 36]
DT = GPIO15 [pin 10]
SW = GPIO14 [pin 8]
+ = 3.3V [pin 1]
GND = ground [pin 6]
Package Include:
5 x KY-040 360 Degree Rotary Encoder Module
5 x Encoder Push Button Black
Use Cases
Autonomous navigation, self-balancing robots, drone flight stabilization, obstacle avoidance, and IoT tracking applications.
Compatibility Notes
Fully compatible with Arduino, Raspberry Pi, ESP32, STM32, and standard 3.3V/5V microcontroller logic levels.
Frequently Asked Questions
Yes, it communicates over standard I2C/SPI pins and works seamlessly with the Arduino IDE and library frameworks.
It is designed to work safely on both 3.3V and 5V power rails, offering wide logic-level compatibility.
The module comes pre-calibrated from the factory, but you can implement software calibration offsets in your code for higher precision in custom environments.
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