[tech] Re: several messages

Adrian Chadd adrian at creative.net.au
Fri Jun 15 14:33:53 WST 2001


> 
> Personally, my choice of hardware model is AVR's on a SimmStick
> motherboard - SimmSticks are a fairly open-hardware project
> (www.simmstick.com). You put a few 30-pin SIMM sockets on a motherboard
> made of 'veroboard', and then just plug in modules. There are oodles of
> free PCB designs as well as pre-etched boards for relay drivers and
> other interface boards (including USB and video), as well as an
> assortment of CPU boards for AVR, HC11, and 8051.

Hrm, nifty! and a local dealer in .nl too!

> The 30 pin bus has power, ground, RS232 send/recieve, and a whole bunch
> of general purpose digital or analog (depending on CPU and
> configuration) IO lines.
> 
> The only issue is that running lots of high-current wiring to

Nice.

> SIMM socket - the strain from the off-board wiring could cause
> problems. In that case, we could use a heavy duty screw-down terminal
> block on the end of the 'motherboard' and run that to a non-simmstick
> relay board.
> 
> So - who's going to turn up to UCC tonight and talk about vending
> machine stuff?

I won't. But I'm more than willing to crank out assembler code if I'm
given the hardware spec. I'll contact the local dealer here today and get
pricing on them.

Wow. thanks for pointing this one out Andrew. I might use them for other
projects!


adrian


-- 
Adrian Chadd			<Liedra> Don't worry, I know who *you* are ;)
<adrian at creative.net.au> 	<spiv> We know everything about you.





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