DCモータードライバーDRV8871を使ってみる

/*  XIAO_ESP32C3_DC_motor          2025.1.17

XIAO_ESP32C3とドライバーDRV8871でDCモーターを回す簡単な例

**********************************************************************/

const int motor1Pin1 = 3;   
const int motor1Pin2 = 2; 

const int MAX_SPEED = 255; // 最大スピード
const int MIN_SPEED = 70;  // 最小スピード

void setup()
{
  Serial.begin(115200);

  // testing
  Serial.print("Testing DC Motor...");

  pinMode(motor1Pin1 , OUTPUT);
  pinMode(motor1Pin2 , OUTPUT);
  // 分解能のデフォルトは8ビット(0～255), 周波数のデフォルトは5kHz
  analogWrite(motor1Pin1, 0);
  analogWrite(motor1Pin2, 0); 
  delay(2000);
}

void loop()
{
  int i;

  // ===== 正転
  Serial.println("Moving Forward");

  // 正転-加速
  analogWrite(motor1Pin2, 0);
  for( i = MIN_SPEED; i <= MAX_SPEED; i++){
    analogWrite(motor1Pin1, i);
    delay(10);
  }
  Serial.print("duty:");
  Serial.println(i);

  delay(3000);

  // 正転-減速
  analogWrite(motor1Pin2, 0);
  for(i = MAX_SPEED; i >= MIN_SPEED; i--){
    analogWrite(motor1Pin1, i);
    delay(10);
  }
  Serial.print("duty:");
  Serial.println(i);

  // 2秒停止
  Serial.println("Motor stopped");
  analogWrite(motor1Pin1, 0);
  analogWrite(motor1Pin2, 0);  
  delay(2000);

  // =====  逆転
  Serial.println("Moving Backwards");

  //  逆転-加速
  analogWrite(motor1Pin1, 0);
  for(i = MIN_SPEED; i <= MAX_SPEED; i++){
    analogWrite(motor1Pin2, i);
    delay(10);
  }
  Serial.print("duty:");
  Serial.println(i);

  delay(3000);

  //  逆転-減速
  for(i = MAX_SPEED; i >= MIN_SPEED; i--){
    analogWrite(motor1Pin2, i);
    delay(10);
  }
  Serial.print("duty:");
  Serial.println(i);

  // 2秒停止
  Serial.println("Motor stopped");
  analogWrite(motor1Pin1, 0);
  analogWrite(motor1Pin2, 0);   
  delay(2000);
}