COSC111 Quiz

What is PWM used for?

• Generating digital signals

• All of the above

• Controlling LED brightness

• Regulating power to various components

How many PWM slices/modules does the RP2040 have?

• 32

• 4

• 16

• 8

What is the duty cycle of a PWM signal?

• The wavelength of the signal

• The frequency of the signal

• The ratio of time the signal is high to the time it's low

• The amplitude of the signal

Which GPIO pin can be used as a PWM pin?

• None of the GPIO pins

• Only GPIO 0

• Any GPIO pin

• Only GPIO 16

What is the function of the L298N module?

• To control LED brightness

• To drive DC motors

• To regulate power to various components

• To generate PWM signals

What is the ENA pin used for in the L298N module?

• To turn on and off the motors

• To power the logic circuitry

• To control the speed of the motors

• To control the direction of the motors

What is the function of the IN1 and IN2 pins in the L298N module?

• To control the direction of the motors

• To protect against back EMF

• To control the speed of the motors

• To power the motors

What is the purpose of the VS pin in the L298N module?

• To protect against back EMF

• To power the IC's internal H-Bridge

• To control the speed of the motors

• To power the motors

What is the maximum current capability of the L298N module?

• 4A per channel

• 3A per channel

• 2A per channel

• 1A per channel

What is the purpose of the GND pin in the L298N module?

• To power the motors

• To control the speed of the motors

• To provide a common ground

• To protect against back EMF