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Replace wall light switch with Touch Sensor

Former Member

I am new at electronics -- so forgive possible stupid questions.

I am trying to replace a wall light switch with a touch sensor switch.

I intend to use a capacitive touch sensor with a relay switch.

The touch sensor will be DC voltage; the relay switch will be the AC voltage.

How can I use the AC voltage in the wall switch to power the DC voltage for the touch sensor?

In the alternative, is there an AC voltage touch sensor I should use instead?

Finally, is there a completely different alternative method I should use?

Thank you for your input!

Richard

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  • 0 in reply to waelect

    Malcolm,

    Thanks for your input.

    I appreciate your warning about AC electricity -- very important.  I have been an electrician for years.  I'm just getting started in Electronics -- which I consider to be microprocessing, etc. (very different from wiring a house).  I was intending to use solid state relays (thanks, again, for the headsup on that).

    My question is more -- presuming I am going to have to use DC voltage for the microprocessing -- of how do I turn the AC voltage to power the DC microprocessing components (instead of having a DC battery inside the junction box)?

    Richard

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