[simpits-tech] Phidgets

[Kevin Foisy]

OK, got some info from Chester.  Roy, you're right...on the phone Chester is great!

On the issues with the 32/32 board, I was under the impression that this board should supply the +5v to each of the 32 inputs/outputs.  In fact, this board is completely isolated from your PC circuitry.  Instead, it provides switching on your circuit.  So when you toggle output #1, the board opens the circuit and allows current to flow.  you supply the power, up to 40v (sorry...I forget the amperage rating).  So you can switch on/off whole lighting circuits, etc. without drawing power from your USB and without risking your PC electronics.  Same deal on the input side.  This is actually a very cool board once you understand it.

On the 8/8/8 board, I simply had the pot wired wrong...been 20yrs since I've played with electronics...I'm a software guy, will be a while coming back up to speed on h/w.

All in all, these boards look awesome and Chester was very helpful including some heads up to new product coming.  From what I can see so far....if you're capable of writing a little code, this is definately the way to go for interfacing your deck.  

Thanks for the heads up on Phidgets!

Kevin

-----Original Message-----
From: Roy Coates [mailto:roy@flightlab.liv.ac.uk]
Sent: Tuesday, April 08, 2003 12:11 PM
To: simpits-tech@simpits.org
Subject: Re: [simpits-tech] Phidgets


On Tue, 8 Apr 2003, Kevin Foisy wrote:

> Hey folks, Question for those of you using Phidgets.  On the
> recommendation of folks on this forum, I just bought two boards...the
> 8/8/8 and a 32/32 board.

They just ROCK :)


> First the 8/8/8 board: I have it partially working...digital inputs and
> outputs are working nicely, but the analog is really throwing me for a
> loop.  I connect a 100K pot to an analog input and I get nothing until
> the pot is fully opened at which point the USB interface throws an
> overload error and the device disconnects and becomes inaccesible.  Am I
> doing something wrong?  I was under the assumption that the analog
> supplies a +5v and measures the variable voltage drop.

Yes, the analog does give a 5v supply and throwing a pot across the supply
and analog input should be fine - thats what its for.


Roy.


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