<div dir="ltr"><div><div><br></div> I paid something like $120 for basically this, a remote flash trigger for my camera. <br> The camera closes a switch through the flash mount that activates circuit A, wireless signals tell circuit B to close, triggering the flash to fire.<br></div><div> The magic is that it's so close to instantaneous I can shoot something a hundred yards away with no delay, no running cables all around.<br><br></div><div> Trigger units are coming down in price now (I imagine $1 circuits are destabilizing the market) but you could probably make a killing in the local photographer community selling rx/tx camera trigger kits.<br></div><div><br> <a href="http://www.henrys.com/62352-CACTUS-WIRELESS-FLASH-TRIGGER-KIT.aspx">http://www.henrys.com/62352-CACTUS-WIRELESS-FLASH-TRIGGER-KIT.aspx</a><br><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Dec 3, 2014 at 10:33 AM, Richard Wiens <span dir="ltr"><<a href="mailto:richard.wiens@rogers.com" target="_blank">richard.wiens@rogers.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="color:#000;background-color:#fff;font-family:HelveticaNeue,Helvetica Neue,Helvetica,Arial,Lucida Grande,sans-serif;font-size:16px"><div dir="ltr">I bought a very cheap (like $1) 433 MHz TX/RX pair awhile back and have just started to play with it. All I want to do is remotely activate a switch. Lots of examples on the interweb of hooking each end up to an MCU and sending data, but I really just want to push a button at one end and have a motor turned on at the other end. Tried a little experiment with LEDs and the interesting thing is that holding the button down on the TX end only seems to produce a 'pulse' at the RX end...the LED doesn't stay on.</div><div dir="ltr"><br></div><div dir="ltr">Other cheap/simple remote ideas welcome (it needs to work outdoors over about 30m with clear line of sight.</div></div><br>_______________________________________________<br>
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