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pinMode(SWITCH_PIN,ANALOGUE);

pinMode(SWITCH_PIN,INPUT);

pinMode(SWITCH_PIN,DIGITAL);

On an Arduino Uno, what does a 10-bit ADC mean for analogRead()?

It returns values from 0 to 1023

It returns values from 0 to 255

It measures only digital HIGH/LOW

It outputs a true analogue voltage

What will this code do?

int sensor = analogRead(A0);

if (sensor > 700) {

digitalWrite(8, HIGH);

} else {

digitalWrite(8, LOW);

}

Sets pin 8 to 1 when the sensor reading is higher than 700

Prints 700 to the Serial Monitor

Fades an LED on pin 8

Reads a digital signal on A0

You want to connect an LED to a digital pin safely. What should you include?

A motor driver

A diode in parallel

A resistor in series

A capacitor in series

1. Based on the circuit you were given to identify faults:

Which function is used to read data from the switch?

switchRead = digitalWrite(8)

switchRead = digitalWrite(A0)

switchRead = digitalRead(8)

switchRead = digitalRead(A0)

1. Based on the circuit you were given to identify faults:

According to the wiring instructions, which pin sends a signal to the servo motor from the Arduino?

Pin A0

Pin 13

Pin 5

Pin 8

Which statement about power pins on an Arduino Uno is correct?

GND is optional if using USB power

The 3.3V pin can safely power high-current motors directly

The 5V pin can be used to power small sensors and simple modules

VIN always outputs a stable 5V

You want to blink an LED on pin 8 once per second. Which approach is most appropriate for a simple beginner sketch?

Use map() to create timing

Use only analogRead()

Use digitalWrite() and delay() in loop()

Use Serial.begin() without any delays

What does pinMode(4, INPUT); do?

Enables the internal pull-up resistor automatically

Sets pin 4 to output a PWM signal

Sets pin 4 so it can read a digital signal.

Makes pin 4 an analogue input

What does this line achieve?

int ledPin = 9;

Creates a variable storing the number that will be used to refer to LED pin

Turns on pin 9.

Defines the PWM frequency

Sets pin 9 to INPUT mode