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Topic: sizing down my arduino (Read 16452 times) previous topic - next topic

Ste_Hughes

hey guys

i need a smaller chip for my project

i have the dip chip (328)

if i get my dremel out and cut the chip in half (the half i am not using) will this work

thanks

dcb

#1
Oct 06, 2010, 08:13 pm Last Edit: Oct 06, 2010, 08:15 pm by dcb Reason: 1
lol it might.  I wouldn't cut it right down the middle as the real brain is probably right there.  It would be funny to see someone with some spare chips try that though :)  but typically one would make the leap to a smd 328 or a smaller cpu if size is that critical.

AWOL

Yes, of course - it will work about half as well as it does at the moment.

No.
Of course it won't work.
"Pete, it's a fool (who) looks for logic in the chambers of the human heart." Ulysses Everett McGill.
Do not send technical questions via personal messaging - they will be ignored.
I speak for myself, not Arduino.

dcb

#3
Oct 06, 2010, 08:20 pm Last Edit: Oct 06, 2010, 08:20 pm by dcb Reason: 1
I think the bulk of most pdip chips is filler where you could "cleanly" remove one or more ends and still have working pins.   But you would have to be pretty bored.




biocow

How good are you with that dremmel? Looks like a lot of connections in there.

http://www.sparkfun.com/commerce/news.php?id=364

Osgeld

depending on your application requirements something more along the lines of an ATtiny84 might be more suitable

keeping in mind there is no hardware serial, and the memory constraints, but it is a 14 pin chip, half the size of the 328
http://arduino.cc/forum/index.php?action=unread;boards=2,3,4,5,67,6,7,8,9,10,11,66,12,13,15,14,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,86,87,89,1;ALL

Senso


mowcius

Quote
if i get my dremel out and cut the chip in half (the half i am not using) will this work

You're joking right?

I want to see the pics if you decide to destroy an ATmega chip this way.

ATtiny chip or an SMD one would suit you better.

Mowcius

AWOL

I have to say that I've seen PICs chopped like this to "chip" games consoles, but not for quite some time.
Never did quite understand why they didn't ship the whole chip - to stop it being cloned, I guess.
Still, not the simplest approach.
"Pete, it's a fool (who) looks for logic in the chambers of the human heart." Ulysses Everett McGill.
Do not send technical questions via personal messaging - they will be ignored.
I speak for myself, not Arduino.

Ste_Hughes

i'm gna do it on a half dead one i think (pin 1 snapped off)

i will show you my L33t dremel skills in a video tomorrow

be there or be pwned bitches

mowcius

:D Right I look forward to it!

dcb

I expect that the central stamp in the sparkfun smd pic is very close or identical to the stamp used in the pdip package if you are looking for a size reference (the pin spacing in the pictures).  The pins on both packages are basically arranged in the same order as you go around the chip.


u0421793

If you send the unused transistors back, I believe you can qualify for a refund.

Ste_Hughes

its an IC not a transistor

noob

Senso

And an ic is made of thousands of transistors ;)

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