RGB LED Quiz

What does RGB stand for in RGB LED?

• Red, Green, Black

• Red, Green, Blue

• Right, Green, Bright

• Red, Grey, Blue

How many color pins does an RGB LED have?

• 1

• 2

• 3

• 4

What is the common pin in a common cathode RGB LED connected to?

• VCC

• GND

• Analog pin

• Digital pin

In a common anode RGB LED, the common pin is connected to:

• GND

• +5V

• PWM pin

• Resistor

Which Arduino pins are best used to control RGB LED brightness?

• Only digital pins

• Only analog pins

• PWM pins (with “~” symbol)

• TX/RX pins

In Arduino IDE, which function is used to set PWM output to a pin?

• digitalWrite()

• analogRead()

• analogWrite()

• pinMode()

What does the following code do(9-Red, 10-Green, and 11-Blue)? analogWrite(9, HIGH); analogWrite(10, LOW); analogWrite(11, LOW);

• Turns LED OFF

• Makes LED Blue

• Makes LED Red

• Makes LED Green

What happens if all three RGB pins are given analogWrite(pin, HIGH)?

• LED glows white

• LED glows black

• LED turns off

• LED blinks

What happens if all RGB pins are given analogWrite(pin, 0) in a common anode LED?

• LED glows white

• LED turns off

• LED glows red

• LED blinks

In Tinkercad, which component can you use to simulate RGB LED?

• Buzzer

• RGB LED

• LDR Sensor

• Servo Motor