As the title says, I'm looking for an easy way to interrupt a 220V electrical cable and to write a software that controls the interruption. I imagine there are some kind of relays or contactors which ...
Possible Duplicate: I'd like to learn how to make my own USB gadgets How to build a USB controller having knobs, sliders, and switches I need to activate a relay via USB, using a ...
I need to control 3 devices, via three relays. I wish to use a 4-relay/usb controller to do this. I currently use this device but I now need three relays: http://www.barix.com/Barionet_100/511/ My ...