#define dir 26
#define step 27
#define botao 14

bool botaoState = 0;

void setup() {
  Serial.begin(115200);
  pinMode(dir,OUTPUT); 
  pinMode(step,OUTPUT);
  pinMode(botao, INPUT);
} 

void loop() {
  botaoState = digitalRead(botao);
  digitalWrite(dir, 1);

  if (botaoState == 1){
    for(int i = 0; i < 200; i++) {
    digitalWrite(step, 1); 
    delayMicroseconds(5000); 
    digitalWrite(step, 0); 
    delayMicroseconds(5000);  
    }
  }
}