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A microcontroller is used to control three LEDs in series (Blue, Red and White). Assume the current rating is 50mA. 1. Design an interfacing circuit for this purpose? 2. List the required components and illustrate their purpose? 3. What is the type of this interfacing?

A microcontroller is used to control three LEDs in series (Blue, Red and White). Assume the current rating is 50mA. 1. Design an interfacing circuit for this purpose? 2. List the required components and illustrate their purpose? 3. What is the type of this interfacing?

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Question 1
A microcontroller is used to control three LEDs in series (Blue, Red and White). Assume the
current rating is 50mA.
1. Design an interfacing circuit for this purpose?
2. List the required components and illustrate their purpose?
3. What is the type of this interfacing?

 

 

Question 1 A microcontroller is used to control three LEDS in series (Blue, Red and White). Assume the current rating is 50mA. 1. Design an interfacing circuit for this purpose? 2. List the required components and illustrate their purpose? 3. What is the type of this interfacing? Question 2 A microcontroller is used to interface an AC load through a relay. L1 D1 RAC er Ouno s PA C2 220V Ad CTEre RI CIP www.studenteompanion.co.za RESET www.studentcompanion.n 1. List the different types of interfacing used in this circuit? 2. What is the role of D1 and Q1? 3. Can the 220V AC source affect the microcontroller? Why? 4. What is the current gate of transistor Q1 (VBE is 0.7)? 1
Transcribed Image Text:Question 1 A microcontroller is used to control three LEDS in series (Blue, Red and White). Assume the current rating is 50mA. 1. Design an interfacing circuit for this purpose? 2. List the required components and illustrate their purpose? 3. What is the type of this interfacing? Question 2 A microcontroller is used to interface an AC load through a relay. L1 D1 RAC er Ouno s PA C2 220V Ad CTEre RI CIP www.studenteompanion.co.za RESET www.studentcompanion.n 1. List the different types of interfacing used in this circuit? 2. What is the role of D1 and Q1? 3. Can the 220V AC source affect the microcontroller? Why? 4. What is the current gate of transistor Q1 (VBE is 0.7)? 1
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