Step 14Connecting and Mounting the Phidgets
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Remember the four wires you have from the wire joint from the relay? Now its time to connect them to the Phidgets. Connect the wires to the Phidgets output ports 0 - 3. Each wire getting its own terminal, order doesn't really matter. Also , connect a wire to the relay battery's ground connection ( negative side) and connect the other end to the two Phidgets terminals closest to output terminals 0 - 3 , they are marked "G". This assigns each output of the Phidget to its own dual relay.
To mount the Phidgets just stick screws or nails through its mounting hole and into the top of the plastic box which encloses your entire relay circuit. If you don't like that , then just mount it anywhere as long as the wires aren't getting to tightly pulled.