Do you mean you require a neutral at a light switch?
If so, I assume there is a 2 core and earth cable at the switch?
If so, replace the 2 core and earth for a 3 core and earth and get the neutral from the light.
IF NOT, give us some more info.
If there is no neutral at the switch, there will be one at the light. However there may not be a permanent live at the light. What supply does this home automation need? Sure it can come off the lighting circuit?
What's the unit you're trying to install?
Does that replace the standard light switch?
Ah ok, presumably so you can switch the lights on remotely?
What wires do you currently have at the light fitting?
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