Something showed up in my email this morning - from Amazon.com It's a yellow ball on a rod that attaches to the mailbox. Cost is=20 shown as US $9.95 dwayne At 06:55 AM 12/15/2016, David C Brown wrote: >I want a "you have mail" indicator on my postbox. Set when the postie >opens the lid to put mail in and cleared when I open the front to remove. >Electrically very simple - couple of microswitches, a latch circuit and a >LED indicator. Unfortunately that is two power hungry for a battery >powered device since the LED could be on for many days when I am away from >home. > >So I need a zero power latching indicator. I have a couple of ideas - two >electromagnets pushing an over centre link. A small stepping motor > driving a petal type display or , via a cam, a lever. > >But it would be nice ti find a ready made device. Any suggestions? --=20 Dwayne Reid Trinity Electronics Systems Ltd Edmonton, AB, CANADA 780-489-3199 voice 780-487-6397 fax 888-489-3199 Toll Free www.trinity-electronics.com Custom Electronics Design and Manufacturing --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .