Computer 5V or 0V output to Sensaphone Express II

ColdNM

I'm using a LabView controlled alarm system in my lab where an alarm condition triggers a USB DAQ analog output signal to switch from +5V to 0V. This signal is going to a sensaphone express II alarm box normally open relay input. The normally open relay input sees 5V as an open (no alarm condition) and 0V as a short (alarm). My problem is the my USB DAQ only has 5 analog output and I would like to have more. I don't want to spend a lot of money. Any suggestions on an inexpensive USB DAQ or PCI DAQ with similar functionality but more channels? Or better yet a way to get a similar effect straight out of the computer? Maybe USB? RS232?

joelupchurch

If you just want to control an external relay Phidgets has several USB boards you can use:

http://www.phidgets.com/products.php?category=9

I've used the Servo Controllers and RFID boards and they are remarkably easy to interface to from C# and VB. They have Labview support, but I haven't tried it.

ColdNM

That sounds perfect! Thanks!

ColdNM

A found a great usb relay board on phidgets, any ideas on a a very similar but solid state version of the same thing? Here is the one I was looking at http://www.phidgets.com/products.php...roduct_id=1017