const int ON_BTN_PIN  = 12;
const int OFF_BTN_PIN = 11;
const int DRIVER_PIN = 3;

bool isMotorOn = false;

void setup() {
  Serial.begin(115200);
  pinMode(ON_BTN_PIN, INPUT_PULLUP);
  pinMode(OFF_BTN_PIN, INPUT_PULLUP);
  pinMode(DRIVER_PIN, OUTPUT);
}

void loop() {
  if (digitalRead(ON_BTN_PIN) == LOW) isMotorOn = true;
  if (digitalRead(OFF_BTN_PIN) == LOW) isMotorOn = false;
  digitalWrite(DRIVER_PIN, isMotorOn);
}