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Linux supported digital IO

D

David Lesher

Jan 1, 1970
0
A friend needs a Linux supported on/off IO port. It looks like it must
be USB as other things are busy.

Any suggestions as to an accessory offering same? He literally needs
one or two channels of contact closure/LED-driving output....
 
B

Bob

Jan 1, 1970
0
A friend needs a Linux supported on/off IO port. It looks like it must
be USB as other things are busy.

Any suggestions as to an accessory offering same? He literally needs
one or two channels of contact closure/LED-driving output....

--
A host is a host from coast to [email protected]
& no one will talk to a host that's close........[v].(301) 56-LINUX
Unless the host (that isn't close).........................pob 1433
is busy, hung or dead....................................20915-1433

Google.

For a one-off hobby project the Velleman K8055 springs to mind.
Cheap, available off the shelf. The ULN2803 open collector output
chip can control things like small DC motors for hobby projects
or can control a relay with external power if you need isolation
or to drive a larger load.

http://libk8055.sourceforge.net/

There are lots of other IO modules, see google

Bob
 
B

Bearded Occam

Jan 1, 1970
0
A friend needs a Linux supported on/off IO port. It looks like it must
be USB as other things are busy.

Any suggestions as to an accessory offering same? He literally needs
one or two channels of contact closure/LED-driving output....

--
A host is a host from coast to [email protected]
& no one will talk to a host that's close........[v].(301) 56-LINUX
Unless the host (that isn't close).........................pob 1433
is busy, hung or dead....................................20915-1433

Check DLP Designs. They have some interesting modules which use the
FTDI chips, and FTDI offers Linux driver support. DLP has a little
board with 4 relays, and also a USB to serial module with a bit bang
mode that lets the module operate like a general purpose digital i/o
board.

Note that I am clueless about Linux, but merely noticed that Linux
support is claimed for these products.
 
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