AVR-Chat

hi...i'm seeking for a right atmel microcontroller....
actually i don't know much about this....
i'm now on my degree project..something about sensor microcontroller
(maybe based on heat detector)..and my supervisor asked me to do using 
atmel microcontroller....
but...i have problem...to choose which microcontroller should i use....
please let me know if you have any idea about this....
thanks....

Youre asking the impossible question ... tell us your requirements first...

Regards
Lasse Madsen

-----Original Message-----
From: AVR-Chat@yahoogroups.com [mailto:AVR-Chat@yahoogroups.com] On Behalf
Of sima_zafrani
Sent: 7. august 2005 17:47
To: AVR-Chat@yahoogroups.com
Subject: [AVR-Chat] which microcontroller????

hi...i'm seeking for a right atmel microcontroller....
actually i don't know much about this....
i'm now on my degree project..something about sensor microcontroller
(maybe based on heat detector)..and my supervisor asked me to do using 
atmel microcontroller....
but...i have problem...to choose which microcontroller should i use....
please let me know if you have any idea about this....
thanks....








 
Yahoo! Groups Links

> hi...i'm seeking for a right atmel microcontroller....
> actually i don't know much about this....
> i'm now on my degree project..something about sensor microcontroller
> (maybe based on heat detector)..and my supervisor asked me to do using
> atmel microcontroller.... but...i have problem...to choose which
> microcontroller should i use.... please let me know if you have any
> idea about this.... thanks....
> 

How about starting with ATmega128 for prototyping. After the project is done you can 
always go for anything more simple...

On Sun, 7 Aug 2005, sima_zafrani wrote:

> hi...i'm seeking for a right atmel microcontroller....
> actually i don't know much about this....
> i'm now on my degree project..something about sensor microcontroller
> (maybe based on heat detector)..and my supervisor asked me to do using
> atmel microcontroller....
> but...i have problem...to choose which microcontroller should i use....
> please let me know if you have any idea about this....
> thanks....
> 

Look through the data sheets and info on the Atmel website and decide what 
features you need and don't need.

Processor speed, available functions, package size and number of pins, 
number of ports, etc. are all factors when I decide what chip I'm going to 
use for a project.

Zack

And if you want one with the east of self-programming via a download from
the serial port rather than the in-circuit-programming cable. Not all AVRs
can be serial-port programmed (aka bootloader)

-----Original Message-----
From: AVR-Chat@yahoogroups.com [mailto:AVR-Chat@yahoogroups.com] On Behalf
Of Zack Widup
Sent: Sunday, August 07, 2005 4:22 PM
To: AVR-Chat@yahoogroups.com
Subject: Re: [AVR-Chat] which microcontroller????

On Sun, 7 Aug 2005, sima_zafrani wrote:

> hi...i'm seeking for a right atmel microcontroller....
> actually i don't know much about this....
> i'm now on my degree project..something about sensor microcontroller
> (maybe based on heat detector)..and my supervisor asked me to do using
> atmel microcontroller....
> but...i have problem...to choose which microcontroller should i use....
> please let me know if you have any idea about this....
> thanks....
> 

Look through the data sheets and info on the Atmel website and decide what 
features you need and don't need.

Processor speed, available functions, package size and number of pins, 
number of ports, etc. are all factors when I decide what chip I'm going to 
use for a project.

Zack




 
Yahoo! Groups Links

--- sima_zafrani <sima_zafrani@yahoo.com> wrote:

> hi...i'm seeking for a right atmel
> microcontroller....
> actually i don't know much about this....
> i'm now on my degree project..something about sensor
> microcontroller
> (maybe based on heat detector)..and my supervisor
> asked me to do using 
> atmel microcontroller....
> but...i have problem...to choose which
> microcontroller should i use....
> please let me know if you have any idea about
> this....
> thanks....
> Salam-o-Alikum!
                 ATmega8 will do the best. Why ur
teacher has asked u to do it with just atmel and not
PIC Microcontrollers.
ws34pk@yahoo.com
Pakistan.
> 
> 
> 
> 
> 



		
____________________________________________________
Start your day with Yahoo! - make it your home page 
http://www.yahoo.com/r/hs

Normally i would buy the cheapest and most widely available one first,
just for experimenting. In my case, it's the ATmega8515. But for
sensors, i.e. using ADC, i would recommend ATmega8535 for beginners.
(The AT90s8515 and the ATmega version has the same price in indonesia,
so buy the ATmega one if possible)

-irfan-

On 8/8/05, WASEEM SHAHZAD <ws34pk@yahoo.com> wrote:
> 
> 
> --- sima_zafrani <sima_zafrani@yahoo.com> wrote:
> 
> > hi...i'm seeking for a right atmel
> > microcontroller....
> > actually i don't know much about this....
> > i'm now on my degree project..something about sensor
> > microcontroller
> > (maybe based on heat detector)..and my supervisor
> > asked me to do using
> > atmel microcontroller....
> > but...i have problem...to choose which
> > microcontroller should i use....
> > please let me know if you have any idea about
> > this....
> > thanks....
> > Salam-o-Alikum!
>                 ATmega8 will do the best. Why ur
> teacher has asked u to do it with just atmel and not
> PIC Microcontrollers.
> ws34pk@yahoo.com
> Pakistan.
> >
> >
> >
> >
> >
> 
> 
> 
> 
> ____________________________________________________
> Start your day with Yahoo! - make it your home page
> http://www.yahoo.com/r/hs
> 
> 
> 
> 
> 
> Yahoo! Groups Links
> 
> 
> 
> 
> 
> 
>

> Normally i would buy the cheapest and most widely available 
> one first, just for experimenting. In my case, it's the 
> ATmega8515. But for sensors, i.e. using ADC, i would 
> recommend ATmega8535 for beginners. (The AT90s8515 and the 
> ATmega version has the same price in indonesia, so buy the 
> ATmega one if possible)

Why not go for a US$20 AVR Butterfly.

See: http://www.atmel.com/dyn/products/tools_card.asp?tool_id=3146

It comes with a LCD display, several sensors, a heap of off-chip FLASH and a
bootloader with RS232 interface and is battery powered. Ideal for making a
little data logger that senses temperature & light levels and logs them in
the onboard FLASH.

Also another consideration which makes it student/DIY friendly is that it
can be programmed completely with the free AVR-GCC C compiler.

See http://www.smileymicros.com/ for a free getting started guide.

Cheers

Alex

On Sun, 2005-08-07 at 20:42 -0700, WASEEM SHAHZAD wrote:
>                  ATmega8 will do the best. Why ur
> teacher has asked u to do it with just atmel and not
> PIC Microcontrollers.

1)  Almost any ATMEGA chip would work, on the basis of the small amount
of information available to us


2)  I would imagine the instructor is personally familiar with the AVR
line, and would find it easiest to evauluate the quality of the code.

3)  This is an AVR mailing list, why are you pushing PIC?

4)  At any given level of performance, PICs cost more than AVRs.  Also,
many AVRs are capable of performance levesl unreachable by most PICs
(given that most of the their processors are still 4
clocks/instruction).

5)  While it is true that the PIC assembler supports fewer instrcutions
(op codes), and some view that as an advantage in terms of simplicity,
the truth is that the AVR instrcution set is more orthogonal, and more
logically consistent.  It is also quite a bit more flexible and
powerful.

6)  Besides whihc, this is an AVR mailinglist.  Why are you pushing PIC?
(did I already say that?)   ***GRIN***

tom