Description

Rotary Encoder Module 5V Sensor Development Board Round Audio Rotating Potentiometer Knob Cap for Arduino

Describe:

Digital Control Module Rotary Encoder Module

Working voltage: 5 v

Pulse count in one circle: 20

The rotary encoder can count the number of output pulses in the process through the direction of rotation and the reverse direction. Unlike the potentiometer, the rotary counter has no limit on the rotation count. With the button on the rotary encoder, it can be reset to the initial state, that is, counting from zero.

Feature:

Incremental encoder is a series of digital pulse signals that convert a rotary displacement into a rotary sensor.

These pulses are used to control angular displacement. The conversion principle of angular displacement photoelectric scanning is adopted in the Eltra encoder.

The code reading system is composed of alternating transparent windows and opaque windows of radial indexing disc (encoder) on the basis of rotation in order. At the same time, it is irradiated vertically to become an infrared light source, and the image optical encoder is projected on the surface of the receiver.

The receiver is covered with a layer of diffraction grating, which has the same window width and encoder. The job of the receiver is to feel the change in the rotation of the disc, and then the light is converted into a corresponding electrical change. To make the low-level signal rise to a higher level, and does not produce square wave pulse interference, so it must be processed by electronic circuits.

The code reading system usually uses the finite difference method, two waveforms, but the phase difference of the 180° signal comparison is different, in order to improve the quality and stability of the output signal. Reading is the difference between two signals formed on the basis of eliminating interference.

Package:

1*Rotary encoder potentiometer module