Virtual Labs

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Aim

Theory

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Simulation

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Aim

Theory

Pretest

Procedure

Simulation

Posttest

References

Feedback

Raspberry Pi LED Blink Program

Choose difficulty:

Beginner

Intermediate

Advanced

What could happen if a resistor is not used in the circuit?

a: Excessive current could damage the Raspberry Pi or burn out the LED Explanation

Explanation

b: No impact on the Raspberry Pi or LED, even if excessive current is passed Explanation

Explanation

c: Over time, the Raspberry Pi and LED may cease to function if too much current flows through them Explanation

Explanation

d: Excessive current has no effect on the Raspberry Pi, but the LED will stop functioning Explanation

Explanation

Which GPIO command is used to set up a pin for use with an LED?

a: GPIO.output Explanation

Explanation

b: GPIO.setmode Explanation

Explanation

c: GPIO.setup Explanation

Explanation

d: GPIO.output Explanation

Explanation

What is the primary function of a GPIO pin on a Raspberry Pi?

a: To provide power to peripherals Explanation

Explanation

b: To send and receive digital signals for controlling devices Explanation

Explanation

c: To supply analog signals for sensors Explanation

Explanation

d: To connect the Raspberry Pi to external storage Explanation

Explanation

Why is it necessary to turn off the Raspberry Pi before connecting hardware?

a: To avoid damaging the components due to static discharge or short circuits Explanation

Explanation

b: To prevent data loss on the Raspberry Pi Explanation

Explanation

c: To ensure that the GPIO pins are not sending signals during the connection Explanation

Explanation

d: None of the above Explanation

Explanation

How many GPIO pins are available on the Raspberry Pi 3 Model B?

a: 40 Explanation

Explanation

b: 26 Explanation

Explanation

c: 17 Explanation

Explanation

d: 8 Explanation

Explanation

What voltage does a GPIO pin output when turning an LED on?

a: 5V Explanation

Explanation

b: 3.3V Explanation

Explanation

c: 0V Explanation

Explanation

d: 12V Explanation

Explanation

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