ATmega168 to ATmega328?

Forum 2005-2010 (read only) Hardware Development
1

Hello, I'm new to arduino, but have been interested for a while. I'm looking to buy an Arduino Duemilanove with USB input.

The thing is, I'm not sure how much memory I will use. I was just wondering since they have the same pinouts, could I just buy an ATmega328 with arduino bootloader pre-loaded and just replace the 168 chip if it's not enough space?

Would it just be more worth it to get the 328 in the first place? (I'm only seeing a few dollar difference on ebay {cheapest is the goal.})

Thanks for any help on this.

2

Yes to both questions, but I would start with a 328 board and be done with it. The 168 is so last year. :wink:

Lefty

3

:slight_smile: Thanks. I figured it'd probably be best to just get the 328 as it's only $2 more on ebay, totaling $24. (Also comes with a proto shield PCB.)

I just didn't know.

(could still be a month or so 'til I buy one. Not to mention the different components to actually create something more then blinking LEDs.)

4

I know it's a lot more expensive, but I'm asking for this from my family for Christmas:

http://www.cutedigi.com/product_info.php?cPath=290&products_id=4260&osCsid=c92dea09155b49adf07b07f7a6ed144c

It comes with a lot of components, tons of jumper cables, and of course the Duemilanove. :slight_smile:

5

For me it'd just be cheaper to get the one off of ebay for $24 and get two of the g kits.

http://www.cutedigi.com/product_info.php?products_id=4252&osCsid=c92dea09155b49adf07b07f7a6ed144c

Relatively the same package then, for $38 instead of $55. Saves some money at least.

(Also, I already have 10 LEDs and a few potentiometers as well.)

Well, maybe not exactly the same, but close enough for me.

6

For me it'd just be cheaper to get the one off of ebay for $24 and get two of the g kits.

Good idea :P. Never noticed the Price difference.

7

Well, the g kit doesn't include the piezo vibration sensor, which isn't important to me, as well, doesn't include the potentiometers, which also doesn't matter to me cause I have a few. Also, it doesn't have any jumpers... which again doesn't matter to me because I have a butt load of extra cat5 cable I can cut up. (several hundred feet of it)

So if that's important to you, you can probably buy each individual component cheaper.

8

Good plan, now just get it done. Your missing out on all the Arduino fun the reset of us are enjoying. ;D

Lefty