Bassanova Posted January 16, 2007 Report Share Posted January 16, 2007 I want to try to design a circuit to mute/pause my Ipod when my cell phone is either ringing og recieves an SMS. I have a fairly good idea of how to achieve the muting/pausing of the Ipod. But I'm at a loss on how to detect the GSM signal. Can anyone help me with this?Just to specify: I'm not after decoding the information in the GSM signal. I just want to detect that my phone recieves a call or an SMS, so I can use this to trigger a reaction in a PIC program.I've seen stickers and "jewlery" sold in stores, that has a LED that blinks when the cell phone is transmitting. So I gather there's some kind of antenna in the sticker, and that the cell phone signal from the phone induces enough energy for the LED to blink. I was thinking about just buying such a sticker, and start dissecting it with my sledge hammer and pickaxe. ;D Quote Link to comment Share on other sites More sharing options...
audioguru Posted January 16, 2007 Report Share Posted January 16, 2007 Hi Bassanova,We have a cell phone ringing detector circuit that maybe you can modify to do muting:http://www.electronics-lab.com/projects/misc/010/index.html Quote Link to comment Share on other sites More sharing options...
Bassanova Posted January 16, 2007 Author Report Share Posted January 16, 2007 Hi Bassanova,We have a cell phone ringing detector circuit that maybe you can modify to do muting:http://www.electronics-lab.com/projects/misc/010/index.htmlAh, this is excellent! ;D That's exactly what I was looking for! Thanks a bunch! Quote Link to comment Share on other sites More sharing options...
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