Thanks for the reply.
The device has two outputs that each attach to a pad used to transmit the pulse of current.
The device allows you to control the pulse frequency, pulse width and intensity of the current that it passed onto the output pads.
Rather than create a pulse, I would like to be able to program the arduino to create my own "patterns" of pulse as it were.
For example, 500ms of a certain intensity, then 1500ms of a different intensity, then a 2 second pause, then back to the start.
I am comfortable with the programming side of things and have run through the tutorials.
I can upload pictures of the device circuit board if that helps?