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Allow for removal of hysteresis on 4x encoders (#13698)
* Remove hysteresis on 4x encoders Sometimes, controller skips encoder pulses and when it returns to default position, the encoder_pulses variable isn't equals 0. And when I turn encoder in opposite direciton, it skips first click becase of encoder_pulses crosses zero. To prevent this, I add the ENCODER_DEFAULT_POS constant, and reset encoder_pulses into 0 when the state variable equals ENCODER_DEFAULT_POS. * Documentation for ENCODER_DEFAULT_POS
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@ -38,6 +38,12 @@ It can also be defined per-encoder, by instead defining:
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#define ENCODER_RESOLUTIONS { 4, 2 }
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```
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For 4× encoders you also can assign default position if encoder skips pulses when it changes direction. For example, if your encoder send high level on both pins by default, define this:
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```c
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#define ENCODER_DEFAULT_POS 0x3
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```
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## Split Keyboards
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If you are using different pinouts for the encoders on each half of a split keyboard, you can define the pinout (and optionally, resolutions) for the right half like this:
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@ -119,6 +119,11 @@ static bool encoder_update(uint8_t index, uint8_t state) {
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encoder_update_kb(index, ENCODER_CLOCKWISE);
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}
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encoder_pulses[i] %= resolution;
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#ifdef ENCODER_DEFAULT_POS
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if ((state & 0x3) == ENCODER_DEFAULT_POS) {
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encoder_pulses[i] = 0;
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}
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#endif
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return changed;
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}
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