Arduino PISOのテスト

何かが間違っているようでうまく動かないため、やり直しが必要な様です。

 #define  DATA_PIN 2   #define  LOAD_PIN 3  #define  CLOCK_PIN 4 
 #define  SIPO_SDI 13  #define  SIPO_LAT 12  #define  SIPO_CLK 11

int bitmap[] = {
  0b1000000000000000,
  0b0100000000000000,
  0b0010000000000000,
  0b0001000000000000,
  0b0000100000000000,
  0b0000010000000000,
  0b0000001000000000,
  0b0000000100000000,
  0b0000000010000000,
  0b0000000001000000,
  0b0000000000100000,
  0b0000000000010000,
  0b0000000000001000,
  0b0000000000000100,
  0b0000000000000010,
  0b0000000000000001,
};

int delayValue = 100;
int buttonStates = 0;
int prevButtonStates = 0;
int step = 0;
bool seqStat = false;

void setup() {
  pinMode(SIPO_SDI, OUTPUT);
  pinMode(SIPO_LAT, OUTPUT);
  pinMode(SIPO_CLK, OUTPUT);

  pinMode(DATA_PIN, INPUT);
  pinMode(LOAD_PIN, OUTPUT);
  pinMode(CLOCK_PIN, OUTPUT);

  digitalWrite(LOAD_PIN, HIGH);
  digitalWrite(CLOCK_PIN, LOW);
  Serial.begin(9600);
}

void loop() {
  readButtons();
  handleButtons();
  stepRun();
}

void readButtons() {
    digitalWrite(LOAD_PIN, LOW);
    delayMicroseconds (15);
    digitalWrite(LOAD_PIN, HIGH);

    prevButtonStates = buttonStates;  // 前回のボタン状態を更新
    buttonStates = 0;

    for (int i = 0; i < 24; i++) {
        digitalWrite(CLOCK_PIN, LOW);
        delayMicroseconds(15);
        int bit = digitalRead(DATA_PIN);
        buttonStates |= (bit << i); 
        digitalWrite(CLOCK_PIN, HIGH);
        delayMicroseconds(15);
    }
    Serial.print("buttonStates: ");
    for (int i = 23; i >= 0; i--) {
        Serial.print((buttonStates >> i) & 1);
    }
}
void handleButtons() {
  if (isButtonPressed(0)) toggleSeqStat();
  if (isButtonPressed(1)) stepControl(+1);
  if (isButtonPressed(2)) stepControl(-1);
  if (isButtonPressed(3)) stepControl(-1);
  if (isButtonPressed(4)) stepControl(-1);
  if (isButtonPressed(5)) stepControl(-1); 
  if (isButtonPressed(6)) stepControl(-1);
  if (isButtonPressed(7)) stepControl(-1);
  if (isButtonPressed(8)) stepControl(-1);
  if (isButtonPressed(9)) stepControl(-1);
  if (isButtonPressed(10)) stepControl(-1);
  if (isButtonPressed(11)) stepControl(-1);
  if (isButtonPressed(12)) stepControl(-1);
  if (isButtonPressed(13)) stepControl(-1);
  if (isButtonPressed(14)) stepControl(-1);
  if (isButtonPressed(15)) stepControl(-1);
  if (isButtonPressed(16)) stepControl(0);
  if (isButtonPressed(17)) stepControl(0);
  if (isButtonPressed(18)) stepControl(0);
  if (isButtonPressed(19)) stepControl(0);
  if (isButtonPressed(20)) stepControl(0); 
  if (isButtonPressed(21)) stepControl(0);
  if (isButtonPressed(22)) stepControl(0);
  if (isButtonPressed(23)) stepControl(0); 
}

bool isButtonPressed(int buttonIndex) {
  // ボタンが押されているかつ、前回は押されていなかったかを確認
  return (buttonStates & (1 << buttonIndex)) && !(prevButtonStates & (1 << buttonIndex));
}

void toggleSeqStat() {
  seqStat = !seqStat;
}

void stepControl(int stepMove) {
  step += stepMove;
  if (step > 15) {
    step = 0;
  }
  if (step < 0) {
    step = 15;
  }
  ledOut();
}

void stepRun() {
  if (seqStat) {
    step++;
    if (step > 15) {
      step = 0;
    }
    ledOut();
    delay(delayValue);
  }
}
void ledOut() {
  digitalWrite(SIPO_LAT, LOW);
  shiftOut(SIPO_SDI, SIPO_CLK, LSBFIRST, bitmap[step]);
  shiftOut(SIPO_SDI, SIPO_CLK, MSBFIRST, bitmap[step] >> 8);
  digitalWrite(SIPO_LAT, HIGH);
}