Hi Jonathan
Thanks for all your help, seems like i was asking for quiet a lot when i said simple. Forgive me but you lost me at OP AMP / Comparator, and can you explain what a gui is from a previous post?
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ID:	7801This is my latest interpration, do you think it will work, i realise that the only LED to illuminate will be the one on the activated switch.

Regards and Thank You

Ray