Physical Computing 3

What is the function of the VBUS pin on the Pico board?

• It provides 3.3 volts power.

• It is used to start and stop the Pico.

• It provides 5 volts power from the micro USB port.

• It is a ground connection.

What does the GND pin represent in the Pico Pin Layout?

• 5 volts power supply

• General-purpose input/output

• 0 volts ground

• Analog-to-digital converter

What does the command 'led = machine.PWM(machine.Pin(15))' in the Python script do?

• It reads the input from pin 15

• It sets the GP15 pin as PWM output

• It disables the PWM on pin 15

• It sets the frequency of the PWM to 1000Hz

What does the term "duty cycle" specifically describe in the context of digital signals?

• The frequency of the waveform

• The amplitude of the signal

• The percentage of time a digital signal is on over a period of time

• The voltage level of the signal

What does PWM stand for in the context of controlling an LED?

• Pulse Width Modulation

• Power Wattage Management

• Pulse Wave Modulation

• Power Width Modulation

What is the purpose of the 'utime' module in the provided Python code for PWM LED control?

• To control the LED color

• To generate random numbers

• To handle time-related functions

• To create PWM objects

What is the purpose of the color_set() function in RGB.py?

• To adjust the brightness of the display

• To let the three primary colors work together

• To create a color palette for graphic design

• To reduce the color resolution

What is the range of values for each primary color in a 24-bit color representation?

• 0 to 100

• 0 to 255

• 0 to 1024

• 0 to 512

What does RGB stand for in the context of an RGB LED?

• Red, Green, Blue

• Rotate, Generate, Blink

• Radio, Graph, Beam

• Range, Gradient, Brightness

Which of the following is a possible modification you can make to an RGB LED setup?

• Changing the color output

• Removing the GND pin

• Using a single color LED instead

• Disconnecting all pins