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Reply to "Semaphore and 555 Timer Circuit"

GRJ, thanks for the clarification. I didn't think of that part...coming from the external power. Was only thinking about the requirement to activate the relay itself. I still have some trouble visualizing these things. Having one in hand is much better, it helps anyway. I warned you the learning part was still on going... 

Stan, sounds like the same as what we (well you, then feeding me the ideas and how-to's that is) have been working on here with the MOSFETs and transistors. I was picturing the ready made module as being something different for some reason? I'm now thinking that it is similar to the stuff you have been helping me with, but probably using GRJ's PIC chip or other microprocessor for the ease and variety of mode selection. And if I am reading the description correctly they even have the jumpers for CA or CC operation built in. I'm looking forward to seeing this thing when it arrives.

Did you by chance see the one that works on 120vac and can handle 500 watts? They had some interesting stuff there (to me anyway). Prices seemed reasonable. I think I even saw 'made in USA' on some of them. They also have an ebay store, slightly higher prices, but most if not all had free shipping which made them actually a little less in final cost. I saw some LED flasher type modules that appeared to be using ICs, possibly similar to what you have been helping me with here. I'm tempted to order one of those as well, just for comparison. But the PIC lessons might now have preference. 

OGR Publishing, Inc., 1310 Eastside Centre Ct, Suite 6, Mountain Home, AR 72653
800-980-OGRR (6477)
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