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| Electronic Projects Design/Ideas/Reviews Are you building an electronic project or want to? Maybe you need some assistance? Come and submit your electronic questions here and let our experienced members find a solution. |
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26th March 2006, 04:38 PM
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 Controlling a house via the phone line Hi, I'm starting a new project to remote a house via the phone line. I use ISD25120 to connect with operator. My question is that how can I playback the sound over the phone line? Thanks alot, Hamid | |
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26th March 2006, 09:46 PM
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| Hi, The ISD25120 is a voice record/playback device... Why do you want to use that for "remote control?" Why not use a microcontroller to send commands serially, for example. Or a DTMF chip? | |
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26th March 2006, 10:17 PM
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| Hello hyedenny, I'm going to design a microcontroller based system. You can conect to a microcontroller via the phone and the system speaks. | |
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27th March 2006, 05:20 AM
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| Hi So youre not really looking for a home automation device? Do you want it to trigger every time the phone rings? Who/what is going to be there to hear the playback of the device? Tell us more about what you want to do... | |
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27th March 2006, 05:26 AM
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is it with connecting to the telephone line ? if yes , it's simple. [code] -------C------ xge audio i/p lines -------C------ C= 0.047u/400v The telephone lines can have high voltage spikes , so make sure the above ckt is connected only after off-hook(use relays).
__________________ Gods own Country Incredible !ndia www.flickr.com/photos/_akg/ "Give a man a fish, and he will eat for a day. Teach that man to fish, and he will eat for a lifetime." | ||
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27th March 2006, 05:30 PM
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| I think you can be presented with this diagram | |
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