logo
  • Home
  • About
  • Training
  • Programming
  • CS
  • IT
  • IS
  • ECE
  • EEE
  • EE
  • Civil
  • Mechanical
  • Chemical
  • Metallurgy
  • Instrumentation
  • Aeronautical
  • Aerospace
  • Biotechnology
  • Agriculture
  • MCA
  • BCA
  • Internship
  • Contact

Micro-controller Multiple Choice Questions | MCQs | Quiz

Microcontroller Interview Questions and Answers
Pratice Microcontroller questions and answers for interviews, campus placements, online tests, aptitude tests, quizzes and competitive exams.

Get Started

8051 - Microcontroller Basics
8051 - Harward Architectures
8051 - Architecture
8051 - Loop & Call Instructions
8051 - I/O Port Programming
8051 - Arithmetic Instructions
8051 - Timer Programming
8051 - Serial Communication
8051 - Interrupt Programming
8051 - LCD Interfacing
8051 - Keyboard Interfacing
8051 - ADC & DAC Interfacing
8051 - Sensor Interfacing
8051 - 8255 Interfacing
8051 - RTC Interfacing
8051 - Motors Interfacing
AVR - Architecture
AVR - Jump & Call Instructions
AVR - Addressing Modes
AVR - Logic Instructions
AVR - Timer Programming
AVR - Interrupt Programming
AVR - Serial Communication
AVR - LCD Interfacing
AVR - Keyboard Interfacing
AVR - ADC & DAC Interfacing
AVR - Sensor Interfacing
AVR - 8255 Interfacing
AVR - RTC Interfacing
AVR - Motors Interfacing
AVR - SPI Protocol
AVR - I2C Protocol
MSP430 - Architecture
MSP430 - Addressing Modes
MSP430 - Functions
MSP430 - Interrupts
MSP430 - Low Power Modes
MSP430 - Digital Inputs
MSP430 - Timers
MSP430 - Watchdog Timer
MSP430 - TIMER1
MSP430 - TIMER - A
MSP430 - TIMER - B
MSP430 - Analog Input
MSP430 - Comparator
MSP430 - ADC Approximation
MSP430 - Sigma Delta ADC
MSP430 - Communication
MSP430 - SPI Protocol
MSP430 - I2C Protocol
MSP430 - Serial Port

Best Reference Books

Microcontroller Books

« Prev Page
Next Page »

8051 Microcontroller Questions and Answers – LCD Interfacing

Posted on July 3, 2017 by Manish

This set of 8051 Micro-controller Multiple Choice Questions & Answers (MCQs) focuses on “LCD Interfacing”.

1. How many rows and columns are present in a 16*2 alphanumeric LCD?
a) rows=2, columns=32
b) rows=16, columns=2
c) rows=16, columns=16
d) rows=2, columns=16
View Answer

Answer: d
Explanation: 16*2 alphanumeric LCD has 2 rows and 16 columns.

2. How many data lines are there in a 16*2 alphanumeric LCD?
a) 16
b) 8
c) 1
d) 0
View Answer

Answer: b
Explanation: There are eight data lines from pin no 7 to pin no 14 in an LCD.

3. Which pin of the LCD is used for adjusting its contrast?
a) pin no 1
b) pin no 2
c) pin no 3
d) pin no 4
View Answer

Answer: c
Explanation: Pin no 3 is used for controlling the contrast of the LCD.

4. For writing commands on an LCD, RS bit is
a) set
b) reset
c) both of the mentioned
d) none of the mentioned
View Answer

Answer: b
Explanation: For writing commands on an LCD, RS pin is reset.

5. Which command of an LCD is used to shift the entire display to the right?
a) 0x1C
b) 0x18
c) 0x05
d) 0x07
View Answer

Answer: a
Explanation: 0x1C is used to shift the entire display to the right.

6. Which command is used to select the 2 lines and 5*7 matrix of an LCD?
a) 0x01
b) 0x06
c) 0x0e
d) 0x38
View Answer

Answer: d
Explanation: 0x38 is used to select the 2 lines and 5*7 matrix of an LCD.

7. What changes are to be made to send data to an LCD?
a) set the R/W bit
b) set the E bit
c) set the RS bit
d) all of the mentioned
View Answer

Answer: c
Explanation: To send data to a LCD, RS pin of the LCD should be set.

8. For reading operation from an LCD what changes in the software are introduced?
a) low to high pulse at E pin
b) R/W pin is set high
c) both of the mentioned
d) none of the mentioned
View Answer

Answer: c
Explanation: For reading operations, R/W pin should be made high and added to it, a low to high pulse is also generated at the E pin.

9. Which instruction is used to select the first row first column of an LCD?
a) 0x08
b) 0x0c
c) 0x80
d) 0xc0
View Answer

Answer: c
Explanation: 0x80 is used to select the first row first column of an LCD.

10. The RS pin is an input/output for a controller?
a) input
b) output
c) both of the mentioned
d) none of the mentioned
View Answer

Answer: b
Explanation: For a controller it is an output pin, but for an LCD it is an input pin.

Sanfoundry Global Education & Learning Series – Electronic Devices and Circuits.

To practice all areas of Electronic Devices and Circuits, here is complete set of 1000+ Multiple Choice Questions and Answers.

« Prev Page - 8051 Microcontroller Questions and Answers – Interrupt Programming
» Next Page - 8051 Microcontroller Questions and Answers – Keyboard Interfacing
« Analog Circuits Questions and Answers – Constant Voltage Drop Model-1
8051 Microcontroller Questions and Answers – Keyboard Interfacing »

Deep Dive @ Sanfoundry:

  1. Oracle Database Questions and Answers
  2. C Programming Examples on Trees
  3. C Programming Examples on File Handling
  4. C# Programming Examples on LINQ
  5. C# Programming Examples on Matrix
  6. Microcontroller Questions and Answers
  7. C Programming Examples on Matrix
  8. 8051 Microcontroller Questions and Answers – I/O Port Programming and Addressing Modes
  9. Microprocessors Questions and Answers – Interfacing With 8051 Ports -1
  10. AVR Microcontroller Questions and Answers – Keyboard Interfacing
Manish Bhojasia, a technology veteran with 20+ years @ Cisco & Wipro, is Founder and CTO at Sanfoundry. He is Linux Kernel Developer and SAN Architect and is passionate about competency developments in these areas. He lives in Bangalore and delivers focused training sessions to IT professionals in Linux Kernel, Linux Debugging, Linux Device Drivers, Linux Networking, Linux Storage & Cluster Administration, Advanced C Programming, SAN Storage Technologies, SCSI Internals and Storage Protocols such as iSCSI & Fiber Channel. Stay connected with him below:
LinkedIn | Facebook | Twitter | Google+

Best Careers

Developer Tracks
SAN Developer
Linux Kernel Developer
Linux Driver Developer
Linux Network Developer

Live Training Photos
Mentoring
Software Productivity
GDB Assignment
Sanfoundry is No. 1 choice for Deep Hands-ON Trainings in SAN, Linux & C, Kernel Programming. Our Founder has trained employees of almost all Top Companies in India such as VMware, Citrix, Oracle, Motorola, Ericsson, Aricent, HP, Intuit, Microsoft, Cisco, SAP Labs, Siemens, Symantec, Redhat, Chelsio, Cavium, ST-Micro, Samsung, LG-Soft, Wipro, TCS, HCL, IBM, Accenture, HSBC, Mphasis, Tata-Elxsi, Tata VSNL, Mindtree, Cognizant and Startups.

Best Trainings

SAN I - Technology
SAN II - Admin
Linux Fundamentals
Advanced C Training
Linux-C Debugging
System Programming
Network Programming
Linux Threads
Kernel Programming
Kernel Debugging
Linux Device Drivers

Best Reference Books

Computer Science Books
Algorithm & Programming Books
Electronics Engineering Books
Electrical Engineering Books
Chemical Engineering Books
Civil Engineering Books
Mechanical Engineering Books
Industrial Engineering Books
Instrumentation Engg Books
Metallurgical Engineering Books
All Stream Best Books

Questions and Answers

1000 C Questions & Answers
1000 C++ Questions & Answers
1000 C# Questions & Answers
1000 Java Questions & Answers
1000 Linux Questions & Answers
1000 Python Questions
1000 PHP Questions & Answers
1000 Hadoop Questions
Cloud Computing Questions
Computer Science Questions
All Stream Questions & Answers

India Internships

Computer Science Internships
Instrumentation Internships
Electronics Internships
Electrical Internships
Mechanical Internships
Industrial Internships
Systems Internships
Chemical Internships
Civil Internships
IT Internships
All Stream Internships

About Sanfoundry

About Us
Copyright
TOS & Privacy
Jobs
Bangalore Training
Online Training
SAN Training
Developers Track
Mentoring Sessions
Contact Us
Sitemap
© 2011 Sanfoundry