Write the code for the following. Write your code on your iPad and submit to this assessment. You may use your notes and a laptop if you wish in order to make sure your syntax is correct. Do not wire this up on a proto board.

Question

1. You are given an LED output called LED11 on pin 11 of the Arduino. Configure it as an OUTPUT

2. You have a pushbutton input switch called SW12 on pin 12 of the Arduino. When the switch is read, its value is to be stored in an integer called sw_in. Configure the input pin 12 as an input with a pullup

3. Show the definitions of these items above the setup() routine. (25 pts)

4. Configure the appropriate inputs/outputs in the setup routine, and initialize the serial console. (25 pts)

5. In the loop() area, (25 pts)

Read the pushbutton switch.

If the value that is read is a 0, then turn on the LED.

If the value that is read is a 1, turn off the LED

6. Throw the values of the pushbutton switch and the LED to the serial console. (25 pts)



NOTE: No partial credit will be given for each portion. So make sure your code and syntax are correct.

Answer 1

Here is the Arduino code you can use for your assignment based on the specified requirements:

// Definitions
const int LED11 = 11;      // Pin for LED output
const int SW12 = 12;       // Pin for pushbutton input
int sw_in;                 // Variable to store the state of the switch

void setup() {
  // Configure LED11 as OUTPUT
  pinMode(LED11, OUTPUT);
  
  // Configure SW12 as INPUT with internal pull-up resistor
  pinMode(SW12, INPUT_PULLUP);
  
  // Initialize serial communication
  Serial.begin(9600);
}

void loop() {
  // Read the pushbutton switch
  sw_in = digitalRead(SW12);
  
  // If the value read is 0 (button pressed), turn on the LED
  if (sw_in == LOW) {
    digitalWrite(LED11, HIGH);
  } 
  // If the value read is 1 (button released), turn off the LED
  else {
    digitalWrite(LED11, LOW);
  }
  
  // Print the values of the pushbutton switch and the LED state to the serial console
  Serial.print("Switch State: ");
  Serial.print(sw_in);
  Serial.print(" | LED State: ");
  Serial.println(digitalRead(LED11));
  
  // Small delay to avoid flooding the serial output
  delay(100);
}

Explanation:

1. Definitions:

   • LED11 is defined for pin 11 and configured as OUTPUT.
   • SW12 is defined for pin 12 and configured as INPUT with an internal pull-up resistor.
   • sw_in is an integer variable to hold the state of the switch.

2. Setup Function:

   • pinMode() is used to set the mode of the LED and the switch.
   • Serial communication is initialized for debugging.

3. Loop Function:

   • Reads the state of the pushbutton switch.
   • If the switch is pressed (LOW), the LED is turned on (HIGH).
   • If the switch is not pressed (HIGH), the LED is turned off (LOW).
   • Outputs the current state of the switch and the LED to the serial console.
   • A delay of 100 milliseconds is added to prevent excessive serial output.

Make sure to upload this code to your Arduino and check the serial monitor to see the output states as specified.