Society of Robots - Robot Forum

Electronics => Electronics => Topic started by: Hawaii00000 on January 07, 2009, 01:39:29 AM

Title: The ATmega328 an upgrade for the Arduino.
Post by: Hawaii00000 on January 07, 2009, 01:39:29 AM

Would any of these work as a drop-in replacement for the ATmega128 in the arduino? http://www.stkcheck.com/evs/atmel/atmelheader2.asp?mfg=atmel&part=ATmega328P

Title: Re: The ATmega328 an upgrade for the Arduino.
Post by: Admin on January 09, 2009, 07:25:06 AM

Yeap. You just need an ISP hardware programmer to upload a 328P compatible bootloader . . . not sure if Arduino supplies one yet or not . . .

Otherwise, you can use my 328P bootloader on my $50 robot page instead.

Title: Re: The ATmega328 an upgrade for the Arduino.
Post by: Hawaii00000 on January 10, 2009, 02:23:44 AM

IS there a difference between them? What do the numbers at the end mean?

Title: Re: The ATmega328 an upgrade for the Arduino.
Post by: Admin on January 10, 2009, 02:37:07 AM

Just look at the datasheets of each for comparison. They are pin compatible, just the later versions tend to be better like more memory and such.

The P at the end means its a low power version to save you ~15 mAh.

Title: Re: The ATmega328 an upgrade for the Arduino.
Post by: Ro-Bot-X on January 10, 2009, 12:11:40 PM

You can find one here:
http://www.adafruit.com/index.php?main_page=product_info&cPath=17&products_id=123 (http://www.adafruit.com/index.php?main_page=product_info&cPath=17&products_id=123)

Title: Re: The ATmega328 an upgrade for the Arduino.
Post by: pomprocker on January 10, 2009, 03:52:58 PM

http://www.ladyada.net/library/arduino/upgrade.html

http://www.ladyada.net/library/arduino/bootloader.html

Title: Re: The ATmega328 an upgrade for the Arduino.
Post by: Webbot on January 10, 2009, 06:46:23 PM

Has anyone found an ATMega328 supplier in the UK yet?

Farnell, RS, Rapide etc don't seem to supply to it yet. Appreciate I could it buy it in from abroad but would need to buy loads of them to make it worthwhile.

Title: Re: The ATmega328 an upgrade for the Arduino.
Post by: zooto68 on April 02, 2009, 05:27:37 AM

I have them for sale. Email me if you are interested.

Title: Re: The ATmega328 an upgrade for the Arduino.
Post by: sonictj on April 02, 2009, 03:12:31 PM

The standard arduino uses a ATmega168 20PU the drop in replacement is a ATmega328 20PU.  The bootloader is now part of the arduino software.  You can also use the bootloader from ladyada.  To burn the bootloader yourself you must have a hardware programmer.