Board recommendations for HID project needing more than 2.5kB

Hello,

I am working on a project using a Arduino Micro but I am getting very close to the SRAM limit and I am thinking of switching to another board.

I have done some research but there sooooo many boards out there (Arduino and non Arduino) and I could use some help figuring which one is the most appropriate.

Here are the requirements :

HID capable
4kb of SRAM or more
i2c capable

-Operates on 5V ( I guess that's not 100% mandatory but I would prefer not to add step up)

-Preferably about the same size of as the Micro
-Preferably able to take 9V VIN
-Preferably compatible with Arduino Code so I don't have to recode it all

Does anyone has some suggestion - Arduino or other ?

Thank you

Well, the "best" board is a matter of taste and so you could receive 1000 different answers which are all wrong and all right, depending on your view. I would say the board that is available and works for the project is right.
The Arduino Mega 2560 has 8KB of SRAM. I usually build my own board using an ATMEGA1284 because it has 16KB of SRAM which is, I believe, the biggest SRAM in the ATMEGA family of 8 bit processors. I usually build mine for 5V and 20MHz giving 25% more processing speed.

The 5V requirement is the limitation; most HID capable boards are 3.3V.

I have no idea what your project is about; maybe you don't make efficient use of the available RAM?

@JaBa, a Mega does not have HID capapilities and does not meet the form factor :wink:

Strange, I am sure I have seen Mega HID projects on this forum...
Oh well, that's what I get for making suggestions on things I am inexperienced at. I just thought that since the OP had waited a while with NO response that I'd put my two cents of mustard in. :slightly_smiling_face:
I have also seen discussions on here about Leonardo and Teensy 2.0++ being used, but again, I have no personal experience.

You can if your replace the firmware of the 16U2; but that already means that you need a Mega with the 16U2 and not with eg. CH340.

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