API for the Grove Rotary Encoder. More...

Detailed Description

ID: rotaryencoder
Name: Rotary Encoder
Category: other
Manufacturer: seeed
Link: http://www.seeedstudio.com/wiki/Grove_-_Encoder
Connection: gpio
Kit: hak

UPM module for the Grove rotary encoder. This rotary encoder encodes a rotation signal into electronic pulses that can be used to measure rotation and direction. It is useful in cases where a rotary knob is required, but using a potentiometer is not desirable. A rotary encoder can turn a full 360 degrees without a stop and does not place a resistive load on the circuit, as is the case with a potentiometer.

This module maintains a position that is incremented or decremented according to the rotation on the encoder.

  // Instantiate a Grove Rotary Encoder, using signal pins D2 and D3
  upm::RotaryEncoder* rotaryencoder = new upm::RotaryEncoder(2, 3);
  
  while (shouldRun)
    {
      cout << "Position: " << rotaryencoder->position() << endl;
      usleep(100000);
    }