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Microcontrollers

Written By: 

RoseMary
Comparative study of different families: 8051, AVR/ATmega, PIC
 
Microcontroller Comparison, 8051, AVR & PIC Microcontroller8051: These microcontrollers are old but still trendy and most of the companies fabricate these microcontrollers. The older types of 8051 have 12 clocks per instruction that make it sluggish whereas the recent 8051 have 6 clocks per instruction. The 8051 microcontroller does not have an in built memory bus and A/D converters. In 1980, Intel fabricated the single chip microcontroller 8051 with Harvard architecture.
 
PIC: Programmable Interface Controller is usually referred as PIC. They are slightly older than 8051 microcontrollers but excel cause of their small low pin count devices. They perform well and are affordable.  The Microchip technology fabricated the single chip microcontroller PIC with Harvard architecture. The programming part is very tedious and hence it is not recommended for beginners.
 
AVR:  In 1996, Atmel fabricated this single chip microcontroller with a modified Harvard Architecture. This chip is loaded with C- compiler, Free IDE and many more features. This microcontroller is a bit difficult for the starters to handle.
 
Criteria for choosing a microcontroller
The most important factor is that the microcontroller should be cost-efficient and work capably to handle the dedicated task. Some questions that should be asked while deciding on a microcontroller are as follows:  
1.         What is the maximum speed of the microcontroller?
2.         What is the amount of RAM and ROM on chip?
3.         How easy it is to upgrade to higher upgrade or lower consumption versions?
4.         Is the microcontroller readily available at cheaper rates?
5.         What is the number of I/O pins and timer on the chip?

Comments

 over current,over voltage,over temprature relay etc using microcontroller

the main difference between microcontroller and microprocessor is the no. instructions in micro processor are more than micro controller, there is bitwise addresseble mode in microcontroller which is not in microprocessor

Number of instruction is defined by the terms RISC or CISC. 

R: Reduced

C: Complex

Instruction Set Computing

i totally love this theme ;-D
why is that? care to explain? just wondering ;-D

 funtastic

 Can you please send me a synopsis of micro-controller based project AUTOMATIC ROOM LIGHT CONTROLLER WITH VISITOR COUNTER. thanking you..

what about programming

I interested with this but it is still more and more to learn about microcontroller .

realy I want answer to this quetion :

where I can see 8051 ,PIC, AVR in real life application microwae or TV is there afemose company use any

of those MC directly or under another name.

I will highly appricheated any explain.

hai i did 5*7 dot matrix display with uln2003a driver using 89c51. my question is,its going on properly but the brightness is low. so how to improve the brightness of led dot matrix.

 

 

please help me.......................... 

u can solve ur problem to short the some pin of lcd

 

preset is used to improve the contrast of lcd

APPLY 230V

 

send any informatn available for touch based control system with microcontroller

   I am so happy to know engineering garage

   I like it so much .

What an awesome way to explain this-now I know everything!

over current,over voltage,over temprature relay etc using microcontroller plz send more details plz for my project work

Can you please help me on 'How to program AT89C51 microcontroller', using just Personal Comupter and some software?

nunber of  8051 program is available

There is a huge competition among microcontroller manufacturers. Despite this choice there are few microcontroller families that are popular .

8051

-89c51

-89v51

-89s52

Every now and then any techno enthusiast opens up a computer system he can automatically get to visualize some tiny microcontrollers ...

which ic are we using for avr microcontroller???

 

There are many tools, free and low cost demo boards available to learn about PIC microcontrollers than any other microcontrollers.

Microchip also has developer forum where we can post our queries and provide ontime support. They also share lot of demo code and demo applications which is easy to learn about embedded application development.

Things are easy with PIC!

Enjoy!

 

how to a project multifucntion power meter by mcu and lcd.

get me any simple code usin atmega16.............do mail to tis id asap  : jmohanbabu92@gmail.com

 

i want automatic room power control using micro controller. please send me soon...

 

Can you please send me a synopsis of micro-controller based project AUTOMATIC ROOM LIGHT CONTROLLER WITH VISITOR COUNTER. thanking you..

Microprocessors are misused to complete big and generic applications, patch a micro controller instrument only be utilized to effect a singular strain within one use

Can you please send me a synopsis of micro-controller based project AUTOMATIC ROOM LIGHT CONTROLLER WITH VISITOR COUNTER. thanking you..

can anyone plz help me in designing a fire alarm based on gsm netork

I am doing my miniproject using 89s52 microcontroller.can any one tell me how to save 10 numbers in continous memory?ie which instruction should I use to save these numbers.............i want to save these numbers permanantly ,can i use ram for that?

and I also want to know that whether MOV A, @A+40 will work,where  A=accumulator,       40=an internal ram address......................please reply me soon..............thanking you

 

i wnt microprocessor basics and one project of it......please help me.......

how can i connect AT89C51 on breadboard with resistors arrays and push buttons.any 1 have idea?pls help me

how can connect AT89C51 on breadboard with reset MC, resistors arrays and push buttons?any 1 have idea pls help me.

can we do this project for at89s52

 

Good work
Hi HI
Hi HI

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