while循环运行多次并设置标志？

我无法让这个循环只运行一次.我有一个标志设置,我的理解是它将运行一次,更改flag = 1,然后不再运行但是当我执行它时,循环会一遍又一遍地运行.任何帮助表示赞赏.

编辑:我发现的问题是即使我的电压满足if语句,循环仍继续运行.

voltage = analogRead(A0); //reads in voltage from pin A0
Serial.println(voltage);

//Calibration routine
do {
  if ((voltage >= 1) && (voltage <= 10)) {
    //while the voltage is between 4.88 and 48.8 mV the calibration light will flash once
    //this ensures the voltage is above 0 and lower than the threshold for the max voltage routine
    digitalWrite(calibrationLED, HIGH);
    delay(2000);
    digitalWrite(calibrationLED, LOW);
    delay(1000);
    digitalWrite(calibrationLED, HIGH);
    delay(2000);
    Serial.println("Calibrated");
    delay(5000);
    voltageInitial = analogRead(A0);
    //stores the initial voltage to a separate variable, does not change over the course of the crimp
    Serial.println("Initial Voltage: ");
    Serial.println(voltageInitial);
    flag = 1;
  }
} while (flag == 0);

dbush.. 5

该flag变量将只得到设置为1,如果if条件为真.当voltage值为1到10 时会发生这种情况.

如果值voltage不在1 - 10范围内,flag则不会设置.并且由于voltage从未在循环内部进行修改,因此您将拥有无限循环.

该flag变量将只得到设置为1,如果if条件为真.当voltage值为1到10 时会发生这种情况.

如果值voltage不在1 - 10范围内,flag则不会设置.并且由于voltage从未在循环内部进行修改,因此您将拥有无限循环.