Rotary Encoder Module Free Shipping Dropshipping KY-040 for Arduino The Keyes KY-040 rotary encoder is a rotary input device (as in knob) that provides an indication of how much the knob has been rotated AND what direction it is rotating in. It’s a great device for stepper and servo motor control. You could also use Read more about Rotary Encoder Module Brick Sensor Development for arduino KY-040[…]