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Topic: Arduino with Atmega32A core (Read 1 time) previous topic - next topic


Sep 10, 2012, 12:49 pm Last Edit: Sep 10, 2012, 04:01 pm by hansibull Reason: 1
I've been looking at the atmega1284 chip the past few weeks, and I think it's a great chip if you need a LOT of flash memory, and more IO ports. The only problem is that the AVR it selves costs about 17$ with shipping from ebay. that's about the price of a Mega2560 (clone).
Since I don't need that much flash memory, I started looking for other, cheaper alternatives. the difference between 1284 and 644 when it comes to price isn't big. just a few dollars (at ebay). still, the smaller Atmega32A costs about 4$, and also have a lot of IO pins.

does it exist an Arduino bootloader for the Atmega32A? is there a cheaper place to buy AVRs than ebay?



I've bought an Atmega32A from Farnell in the UK.  It cost me about £4.  I have it on a breadboard and bootloaded it with an Arduino Uno.  It works fine apart from digitalRead not working for some reason.

These links should help you get going with the bootloader.

My Arduino 7 segment LCD/LED library


Tom Carpenter



does it exist an Arduino bootloader for the Atmega32A?

Why on earth would you want a bootloader if you're building a standalone device?

Get a $10 ISP programmer.

No, I don't answer questions sent in private messages (but I do accept thank-you notes...)


Jan 07, 2013, 06:19 pm Last Edit: Jan 07, 2013, 06:24 pm by olof_n Reason: 1
Ebay is not always the best place to buy from.
I don't know why ATMega1284 is so expensive on ebay.

I recommend Futurlec, I have bought microcontrollers from them a couple of times.
ATMega1284  6.9$
ATMega328   2.20$
ATTiny85      1.15$

I think 6.9$ is a bit expensive compared to ATMega328.
I also recommend buying a separat programmer and skip the bootloader.


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