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Topic: Are you interested in a small version of the Arduino Mega 2560?  (Read 245 times) previous topic - next topic

Eagle67

Hi everyone,

Once I started off with Arduino Pro Mini / Uno and build my first simple projects I integrated the different functionalities from those projects, e.g. sound module, display, XBee,..., I shortly reached the memory and pin boundaries. Yes you can say, program more efficient, so I did that and also looked the libraries to strip them from code I only needed. But at some point it came to an end.

I went for the Arduino Mega 2560.  This is OK, but the size of the board bothered me. So I looked on the internet to get a small sized one but couldn't find anything that I could buy against a comparable price of the normal Mega 2560. So I decided to build one of my one. The road to there can be found at arduino.now4.nl. I've recorded all the steps I took to design and build the board, that I called the MegaMini, to share my experience.

The questions I have are:
  • Do you have any remarks on the board layout?
  • Should I've chosen a better list of available pins?
  • Is it already build by somebody else? Why not?


Looking forward for some feedback from you!

Arend

Isaac96

The problem with that is the fact that you are wasting a LOT of I/O. Did you break out SPI, I2C, and UART?
The design is great, though. A useful feature would be to have SMD pads on the back of the board for other pins, like the Teensy 3.1.
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Eagle67

Thanks, yes, good idea to have SMD pads on the back to provide more IO. SPI, I2C and all 4 UART's are available. 

Isaac96

Do you have a completed project with this? 
BTW, how much did it cost to build?

Very nice design. You should check out CrossRoads' Bobuino Mini.
Do not PM me for help.Only links to topics.
CONNECT THE GROUNDS!

After Tuesday, even the calendar goes W T F

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