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Author Topic: Binary Conversion to Sound????  (Read 2270 times)
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Hey all, I have a project that I have wanted to do for a long time that I thought might be feasible with my arduino. I have been un able to find a software solution for this so now Im checking here.

What I want to do is input BINARY code to the arduino (say through the serial monitor or something like that)
and then I want the arduino to convert that binary code into a sound (that can be sent out on a pin as mono or through a speaker etc) But it needs to be sound that you can hear.  Essential I want the arduino to convert it and allow me to record it (say on mp3 player or something)....

THEN I also need to be able to:

Input the sound back into the arduino  (maybe back over mono 1 pin connection and the arduino convert it back to binary and export it back over the serial connection.

Anyone here have any Idea how I may accomplish this?
I have been looking on the t for several months now and have found nothing. Any help woudl be greatly appreciated. THanks! in advance!
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Frequency Shift Keying will do this, its how early home computers saved programs to cassette tapes and dialup modems worked.  smiley
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What kind of binary data?   Just one bit (on or off)?

What kind of sound?   Just some kind of tone? 

Are you trying to make something like a telegraph or Morse code machine? If you want something that makes a tone when the input is 1, and no tone (or a different tone) when the input is 0, you can do that with an Arduino, but you don't really need a "brain chip" or programming for that. smiley-wink
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Essentially what I want to do (in laymans terms) is:

  • Write a message or use some text
  • Convert is into binary code (using some online converter or something)
  • send the binary cod to the arduino (maybe through serial connection (the monitor) or somethign like that
  • Have the arduino take the binary code and convert it to sound that can be output on one of the pins (so I can record it into an external device.
  • I also want to do the same in reverse but this is the main process for now.
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http://sree.cc/electronics/arduino-as-an-fsk-modem
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