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Aim

Theory

Pretest

Procedure

Simulation

Posttest

References

Feedback

Write a program to control an LED brightness by generating a PWM signal on PIC18 series microcontroller

Choose difficulty:

Beginner

Intermediate

Advanced

1) Which programming language is commonly used to write programs for PIC microcontrollers?

a: Python Explanation

Explanation

b: Java Explanation

Explanation

c: C/C++ Explanation

Explanation

d: JavaScript Explanation

Explanation

2) Which microcontroller model was used in the experiment to generate the PWM signal for LED brightness control?

a: PIC16F877A Explanation

Explanation

b: PIC18F4550 Explanation

Explanation

c: Arduino Uno Explanation

Explanation

d: Raspberry Pi 3 Explanation

Explanation

3) What does PWM stand for in the context of microcontrollers?

a: Programmable Wide Modulation Explanation

Explanation

b: Pulse Width Modulation Explanation

Explanation

c: Power Wave Manipulation Explanation

Explanation

d: Programmable Waveform Modulation Explanation

Explanation

4) What is the purpose of generating a PWM signal in LED brightness control?

a: To toggle the LED on and off rapidly Explanation

Explanation

b: To adjust the current flowing through the LED Explanation

Explanation

c: To synchronize the LED with other devices Explanation

Explanation

d: To change the LED colour Explanation

Explanation

5) How is the LED brightness controlled using PWM?

a: By varying the voltage applied to the LED Explanation

Explanation

b: By adjusting the frequency of the PWM signal Explanation

Explanation

c: By changing the duty cycle of the PWM signal Explanation

Explanation

d: By altering the LED's internal resistance Explanation

Explanation

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