6 . RGB Color Switcher

Which type of pin is typically used to control an RGB LED's color switcher on an Arduino?

• Analog pins
• Serial pins
• Digital pins
• PWM pins

In a common cathode RGB LED, which pin is connected to ground?

• BLUE

• RED

• Common cathode pin

• GREEN

Which Arduino function is used to set the brightness of an RGB LED color?

• analogRead()
• digitalWrite()
• analogWrite()
• pulseIn()

What is the PWM value range that can be used with the analogWrite() function to control an LED?

• 0 to 255
• 0 to 100
• 100 to 500
• 256 to 512

Which function would you use to create a delay between changing the colors of the RGB LED?

• delay
• sleep
• wait
• pause

Which component is used as switch to change the color of an RGB LED ?

• Pushbutton

• Serial monitor

• Potentiometer

• Capacitor

To achieve a pure red color on a common cathode RGB LED, which pins should be activated with a PWM value of 255?

• Red pin with PWM 0, Green pin with PWM 0, Blue pin with PWM 255
• Red pin with PWM 0, Green pin with PWM 255, Blue pin with PWM 0
• Red pin with PWM 255, Green pin with PWM 0, Blue pin with PWM 0
• Red pin with PWM 255, Green pin with PWM 255, Blue pin with PWM 255

Which of the following is the correct way to turn off all colors of an RGB LED using PWM pins 9, 10, and 11?

• analogWrite(9, 255), analogWrite(10, 255), analogWrite(11, 255)
• analogWrite(9, 0), analogWrite(10, 0), analogWrite(11, 0)
• analogWrite(9, 0), analogWrite(10, 255), analogWrite(11, 0)
• digitalWrite(9, LOW), digitalWrite(10, LOW), digitalWrite(11, LOW)

which function is used to pick color number in between 0-255 ?

• random()

• delay()

• analog.read()

• Serial.read()

PWM full form ?

• Pulse Width Modulation

• Pin Width Modulation

• Pulse Width Module

• Pin with Memory