4 Pack KY 040 Rotary Encoder Modules With Knob Caps For DIY Microcontroller Projects, 360 Degree Rotation, Detented Rotary Switch, 5V Input, 20 Pulses Per Revolution, Breadboard Friendly, Aluminum Knob Cap, Great For Tiny Electronics Builds
✔️ 5V input, 20 pulses per revolution, detented knob, 4-pack
These compact rotary encoder modules come with aluminum knob caps, delivering 20 pulses per revolution and a built-in reset button. They’re breadboard-friendly and ideal for hobbyist projects using Arduino, ESP32, or other microcontrollers.
✅ 20 pulses per revolution
✅ 5V working voltage
✅ Detented rotation with reset to zero
✅ Aluminum knob cap, 15 mm (0.59 in) diameter, 16.5 mm (0.65 in) height
✅ Breadboard-friendly module for quick prototyping
✅ Pack of 4 units
💡 What is a detented rotary encoder with 5V input used for in DIY electronics?
- pulse counting in both directions for UI navigation
- reset-to-zero feature helps track increments accurately
- breadboard-friendly footprint makes wiring easy with microcontrollers
- knob cap improves grip and comfort for long sessions