jasonlaronde Posted April 28, 2007 Report Share Posted April 28, 2007 I have to be able to control a speaker wall at my store and wish to build a gang switch to control high-current relays.This is what I need... There will be a momentary button for each channel. When I press I button, I need to make a pin on an IC go high (preferably 12v but I could get away with 5v) so I can trigger a high-current relay which will route the power signal to the connected speakers.When I press another button, I need the first channel to turn off and the new channel to turn on...Commercial speaker selectors can cost in excess of $10,000 so I'd like to avoid this if it can be built on perf board and put in a rack enclosure...Thanks!Jay Quote Link to comment Share on other sites More sharing options...
jgeidl Posted April 28, 2007 Report Share Posted April 28, 2007 I am assuming that MCU programming isn't what you do everyday so I suggest you take a look at a Basic STAMP or a PICAXE chip. Through relatively minor programming you can accomplish what you are after.Jim Quote Link to comment Share on other sites More sharing options...
jasonlaronde Posted April 28, 2007 Author Report Share Posted April 28, 2007 not a programmer at all...Jay Quote Link to comment Share on other sites More sharing options...
jasonlaronde Posted May 25, 2007 Author Report Share Posted May 25, 2007 Still no ideas eh guys?I figure the easiest way to do it will be to run relays off of a 74154... I just need to figure out a way to input to the 4 inputs in such a way to trigger the correct output...Or use a series of flip flops and having a button for every channel that I can send a reset to all other chips without resetting the one I need to stay active in the process..Any ideas... again without programming???Jay Quote Link to comment Share on other sites More sharing options...
ante Posted May 26, 2007 Report Share Posted May 26, 2007 Does the high power relays have any extra contacts that could be used to latch? Quote Link to comment Share on other sites More sharing options...
jasonlaronde Posted May 26, 2007 Author Report Share Posted May 26, 2007 At this point I'm open to any suggestion... If you have a part in mind, let me know what your idea is...THanks!Jay Quote Link to comment Share on other sites More sharing options...
ante Posted May 26, 2007 Report Share Posted May 26, 2007 I thought maybe you had already decided on a specific type of relay suitable for audio. I am not sure if there are some special requirements for such relays? Quote Link to comment Share on other sites More sharing options...
MP Posted May 27, 2007 Report Share Posted May 27, 2007 How many stations or momentary push buttons are needed?How much voltage and current being switched?MP Quote Link to comment Share on other sites More sharing options...
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