Re: poor man's IO?

[Rob <no@xxxxxxxx>]

In article <3tSdnc1BCNmzs3jfRVn-iQ@xxxxxxxxxxxxx>, wkearney99@xxxxxxxxxxx says...
> I'm aware of that one can use a gamepad or joystick to provide a "poor man's
> I/O interface" for input signals.  But how about output relay closures?
> What's available with a USB interface that would lend itself to being used
> for controlling switches, presumably with external relays?  I'm thinking of
> using something like this for handling stuff like the 12v signalling
> question posed in another thread.  I'm not insisting on taking the cheap way
> out but would prefer to find something in the sub-$50 range.  Perhaps with
> at least 8 outputs?
>
> Suggestions?
>
> -Bill Kearney
>
>

The devices at http://www.usbmicro.com may work for you. They are available on their own from
http://www.dontronics.com and are bundled with the Digital I/O Commander at
http://www.kadtronix.com, and Home Domination at http://www.homedomination.com

The USBmicro web site has sample/example programs for using the U401 and U421 devices.

The devices support 16 I/O lines, SPI for I/O expansion or interfacing to SPI devices (D/D,
serial pot, etc), stepper motor control, LCD interfacing, and support for Dallas 1-wire
devices.

-Rob