Hol,
Consider putting an H-bridge on the board also. Nice for bi-directional
applications.
Also think about MOSFETS instead of traditional power transistors as they
have lower forward resistance and dissipate less power
Steve.
On Friday, November 15, 2013, Hol Gaskill wrote:
OK Folks,
We've been talking about selling electronics kits as a revenue source
basically since forever.
I've been going back and forth on a design concept and am converging on
one that achieves the folowing compared to other Arduino clones:
A) lower cost
B) more power
C) increased hackability
basically the controller chip hooked straight up to an array of 7x 500mA
power transistors, with a heavy duty voltage regulator of voltage range
selectable at time of purchase
I am heading to sudo in a few minutes to draft a design for the first
generation board, schematics of which which I'll send out in about an hour.
If anyone is around sudo or near email and wants to collaborate, I'm using
http://fritzing.org/download/ software which I just installed last night
but seems to err on the side of being easy to use.
Working capital requirements for this will not be very prohibitive, but I
think a Kickstarter campaign would be a good way to get enough to bring
costs down even further, not to mention get the word out. Who's good at
those? I'll do the legwork, just need some tips&tricks.
Cheers,
Hol
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-steve