I realize I used the word mega twice. It's about 4" x 4"! I've taken the basic 2560 mega shield and extended it. I have the W5100 ethernet set, SD card, 3 VNH2SP30 motor drivers, a 24-pin ATX connector, 7414 series schmitt trigger for hardware button debouncing and some LS7184 encoder counters to keep track of what DC motors are doing.
I'm having a lot of trouble doing much better than about 55% on laying down traces using autoroute and I'm not experienced enough to do it by hand. This is my first circuit, probably a bit ambitious.
Looking to pay someone to double check my schematic and lay out the board. Optionally depending on manufacturing cost I may combine this with the 2560 into a single board. Thoughts on that? I don't plan to sell this separately. It's part of a product I'll be selling.
Optionally depending on manufacturing cost I may combine this with the 2560 into a single board. Thoughts on that?
It very much depends upon how many units you want to build. If you want to build just one, you will spend more design time integrating the ATmega2560 design and yours and it's cheaper to just piggyback onto a Mega. If you're planning on building 100 then it will be definitely cheaper to design and build an all-in-one board rather than buying 100 Mega's and designing/manufacturing 100 custom boards.
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The Ruggeduino: compatible with Arduino UNO, 24V operation, all I/O's fused and protected