Arduino Wait For Input

arduino wait for input Using the Serial.avaiable() Function and Using the digitalRead() Function Example with demo.

Contents

Arduino Wait for Input : Set the Arduino to Wait for the Input Using the digitalRead() Function. Arduino code that uses a (momentary) push button as wait-to-start switch.

Set the Arduino to Wait for the Input Using the Serial.avaiable() Function

Example

void setup() {
    Serial.begin(8900);
}

void loop() {
    while(Serial.available() == 0) {
    }
    int resultsInfo = Serial.read();
}

Set the Arduino to Wait for the Input Using the digitalRead() Function

Example

int userRank = 0;
int totalRank = 7;

void setup() {
    pinMode(totalRank, INPUT);
}

void loop() {
    while(digitalRead(totalRank) != LOW);{      
  }
    userRank = digitalRead(totalRank);
}

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Example code: user input


int resRank = 10; 
int totalCounterData; 
String MaleMessage = "Red Gender is turned MAle"; 
String FemaleMessage = "Red Gender is turned Female"; 
void setup()
{
  pinMode(resRank, OUTPUT); 
  digitalWrite(resRank, LOW); 
  Serial.begin(9600);
}
void loop()
{
  Serial.println("How Many Times Do You Want the Red Gender to blink?"); //Prompt User for Input
  while (Serial.available() == 0) {
    // Wait for User to Input Data
  }
  totalCounterData = Serial.parseInt();
  for (int counter = 1; counter <= totalCounterData; counter++) {
    Serial.println(MaleMessage);
    digitalWrite(resRank, HIGH);
    delay(1000);
    Serial.println(FemaleMessage);
    digitalWrite(resRank, LOW);
    delay(1000);
  }
  Serial.print("The user has choosen the number:");
  Serial.println(totalCounterData);
  Serial.println(" ");
}

In Arduino, you can wait for input from the serial port using the Serial.available() function. This function returns the number of bytes available for reading from the serial port. You can use this function in a loop to wait for input.

Here's an example:

void setup() {
  Serial.begin(9600); // Initialize the serial port at 9600 baud
}

void loop() {
  if (Serial.available() > 0) { // Wait for input
    char input = Serial.read(); // Read the input character
    Serial.println("Input received: " + String(input)); // Print the input to the serial monitor
  }
}

In this example, we're using the Serial.available() function to wait for input. If the function returns a value greater than zero, we know that there is input available to be read from the serial port.

We then use the Serial.read() function to read the input character from the serial port. The input character is stored in the input variable.

Finally, we use the Serial.println() function to print the input character to the serial monitor for debugging purposes.

Note that in this example, we're only reading one character at a time. If you want to read a string or a longer message from the serial port, you'll need to use a loop to read multiple characters until the end of the message is reached.

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arduino wait for input – Arduino wait time, wait for user input