![]() ![]() ![]() Rotary encoders usually have the same issues than switch buttons having bouncing due to how they are made (unless they are magnetic/optical). If the encoder rotates clockwise then CLOCK will lead and if the encoder rotates counter-clockwise then DATA will lead.Īnd taking a look at state change for clockwise two signals will have opposite values and for counter-clockwise same values.Īnd now if we programme our Arduino accordingly we can get it to work with our project. If you look closely those two signals will be 90 degrees out of the phase. Which will generate two trains of pulses. There are two contact point placed at a specific distance apart which are nothing but our CLOCK and DATA line.Īs we rotate our encoder, the two output will change depending upon the position of the encoder. The grey portion is GND and Golden contact points are connected to Vcc. If we rotate clockwise or counter-clockwise it will move accordingly. The knob which we rotate is internally connected to the disk(Pic - 2). It has five pins - Clock, Data, Switch, Vcc, GND One I have comes in this breakout board which already have the required pull-up resistors on it. ![]()
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