21.Why is it important to select the correct port before uploading the sketch to the microcontroller?

To avoid error while uploading.

To speed up the uploading process.

To prevent damage to the microcontroller.

To ensure proper verification before uploading.

22.To ensure that the correct serial port is selected, you can _______.

Select the port that disappear when the USB cable is removed.

Select the port lower than COM3.

Select the port higher than COM3.

23.The purpose of verifying the sketch is to _____.

Check for syntax and other compilation errors.

To facilitate the uploading process.

Upload the sketch into the microcontroller.

Verify that the correct serial port is selected.

24.The sketch is successfully uploaded to the microcontroller when _____.

"Done uploading" appears in the status bar.

"Done uploading" appears in the the serial monitor.

25.The Arduino UNO microcontroller can be connected to the PC computer via _____.

USB cable with A plug to B plug.

USB cable with A plug to micro B Plug.

USB cable with mini A plug to micro B Plug

USB cable with micro A plug to micro B Plug.

28.Common syntax error in coding include_____.

Missing/wrong type of brackets.

Missing semicolons at the end of lines.

29.Refer to the segment of coding below, int sensorValue1 = 0 int sensorValue2 = 0 Correct the syntax error that is stopping the program from working.

Add semicolons at the end of lines.

30.The segment of coding below shows the setup function in a typical Arduino sketch. void setup() { Serial.begin(9600); Serial.print("Temp = "); } Describe the possible display on the serial monitor.

Serial monitor will display Temp =

Serial monitor will display 9600

Serial monitor will display Nonsense

Serial monitor will not display anything

31.Figure shows the message displayed in the Arduino IDE message window. Suggest a possible compiling error with respect to the message displayed.

The baud rate is not set correctly.

The sketch is not uploaded successfully.

Microcontroller is not connected to the computer.

32.The segment of coding below shows the loop function in the "blink" sketch. void loop() { digitalwrite(LED_BUILTIN, HIGH); delay(1000); digitalwrite(LED_BUILTIN, LOW); delay(500); } Will the build-in LED blink? Why?

Yes. The LED will Blink, there is no compiling error.

No. Because the delay in line 5, (500) is not applicable.

No. Because there are syntax error on line 2 and line 4.

No. Because there are spelling mistakes in line 2 and 4.

33.When initiating the Serial monitor in code, its baud rate has to be set_____ .

to the same value as the value in the code.

34.Suggest a possible compiling error that is preventing the sketch from uploading successfully. void setup() { pinMode LED_BUILTIN, OUTPUT; }

Syntax error for setup() function.

Syntax error for wrong spelling.

Syntax error for missing semicolon.

35.Suggest a possible compiling error with respect to the message displayed. void loop() { digitalWrite(LED_BUILTIN, HIGH) delay(1000) digitalWrite(LED_BUILTIN, LOW) delay(1000) }

last 4 lines missing semicolon.

Microcontroller is not connected to the computer.

Arduino UNO Microcontroller Quiz

Authored by james J

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

1. Which one of the following is not a major system component of Arduino UNO microcontroller?

WiFi Module

Voltage Regulator

Power Jack (Barrel)

Crystal Oscillator

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

2.The Arduino UNO board has______ digital I/O pins.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

3.The _________ on the microcontroller operates at a frequency of 16MHz

Crystal Oscillator

Voltage Regulator

Power LED Indicator

Main Microprocessor

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

4.Some of the _____ pins on the microcontroller can be programmed to produce Pulse Width Modulation output.

ICSP

Digital

Analog

Analog Reference

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

5.Which one of the components is not used to power up the microcontroller

Vin Pin

GND

Barrel Jack

USB Port

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

6.There are ____ PWM digital pins on the Arduino UNO microcontroller.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

7.There are ____ Analog pins on the Arduino UNO microcontroller.

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Arduino UNO Microcontroller Quiz

1. Which one of the following is not a major system component of Arduino UNO microcontroller?

2.The Arduino UNO board has______ digital I/O pins.

3.The _________ on the microcontroller operates at a frequency of 16MHz

4.Some of the _____ pins on the microcontroller can be programmed to produce Pulse Width Modulation output.

5.Which one of the components is not used to power up the microcontroller

6.There are ____ PWM digital pins on the Arduino UNO microcontroller.

7.There are ____ Analog pins on the Arduino UNO microcontroller.

8.The ____ pins on the microcontroller can be used to read signal from humidity and temperature sensors.

9.The Voltage Regulator controls and stabilised ____ voltage from the Power Jack and Vin pin.

10.Which one of the component is used to calculate time in the microcontroller?

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