Re: Lighthouse project

Just as an idea, but what about mounting a touch plate - 42" + kids arms
length, plus allowance for tippy toes, on a wall etc, and only let kids
who can reach to touch the plate go up. A touch plate circuit which
operates a light and perhaps a recorded message might be fun

David

Franktrem wrote:

I am a volunteer at our local lighthouse and have been asked to make a
wooden sign in the shape of the lighthouse so that they can measure the
height of children who can climb the lighthouse stairs. The minimum
height is 42" tall.

I don't have a problem with the woodworking aspect but thought it would
be a neat idea if I could incorporate some inexpensive electronics that
would sense a height greater than 42" and light a small bulb at the top
of the lighthouse.

I was thinking of a low voltage circuit that could be powered by a
battery. My talent in electronics is rudimentary.

Could anyone suggest how this might be done?

Thanks

.