stepper-28byj48-controller
txgruppi/stepper-28byj48/stepper-28byj48-controller
No description
stepper-28byj48-controller
@/stepper-28byj48-controller
STPpulse
Do a half-step for each pulse
CCWboolean
false to run clockwise and true to run counter-clockwise
DSBpulse
Disable the motor
MSKbyte
OFFboolean
true when all wires are off
DONEpulse
Done updating
C++ implementation
struct State {
int index = 0;
};
{{ GENERATED_CODE }}
uint8_t positions[8] = {
0b00001000,
0b00001100,
0b00000100,
0b00000110,
0b00000010,
0b00000011,
0b00000001,
0b00001001,
};
void emitAll(Context ctx, uint8_t pins, int index, bool off) {
emitValue<output_MSK>(ctx, pins);
emitValue<output_OFF>(ctx, off);
emitValue<output_DONE>(ctx, 1);
}
void evaluate(Context ctx) {
State* state = getState(ctx);
if (isInputDirty<input_DSB>(ctx)) {
return emitAll(ctx, 0, state->index, true);
}
if (!isInputDirty<input_STP>(ctx)) {
return;
}
bool ccw = getValue<input_CCW>(ctx);
if (ccw) {
state->index -= 1;
} else {
state->index += 1;
}
if (state->index < 0) {
state->index = 7;
} else if (state->index > 7) {
state->index = 0;
}
emitAll(ctx, positions[state->index], state->index, false);
}