binary from fequency coding help
Lab Rat
Posts: 289
Here is a question for you.
I was sitting around last night playing with my cassette player getting it to work I thought of an idea. I want to store data on my cassette tape.
I know that this is old technology but I have never played with it before.
I thought that I could send a higher frequency as a 1 and a lower frequency as a 0. I can send the frequency to the tape via the line in ports
·on the back of the cassette player unit. And I can get the signal back out through the output ports but I cant figure out how to get the stamp
·to register frequencies.
OK now my question for you is I want frequency A to register as a 1 and frequency B to register as a 0. Now I want the stamp to compile these
ones and zeros into an 8 bit bites·or groupings and output them as there decimal equivalent (to display words) to lets say an led matrix display that
·is 7 by 10 LEDs.
Have fun and thankyou
▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
Parallax posesses power beyond belief.
Believe in it.
Post Edited (Lab Rat) : 10/16/2008 4:10:14 PM GMT
I was sitting around last night playing with my cassette player getting it to work I thought of an idea. I want to store data on my cassette tape.
I know that this is old technology but I have never played with it before.
I thought that I could send a higher frequency as a 1 and a lower frequency as a 0. I can send the frequency to the tape via the line in ports
·on the back of the cassette player unit. And I can get the signal back out through the output ports but I cant figure out how to get the stamp
·to register frequencies.
OK now my question for you is I want frequency A to register as a 1 and frequency B to register as a 0. Now I want the stamp to compile these
ones and zeros into an 8 bit bites·or groupings and output them as there decimal equivalent (to display words) to lets say an led matrix display that
·is 7 by 10 LEDs.
Have fun and thankyou
▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
Parallax posesses power beyond belief.
Believe in it.
Post Edited (Lab Rat) : 10/16/2008 4:10:14 PM GMT
Comments
Do a Google search for "modem chip" for others.
Once you get a bitstream (0s and 1s), you can use SERIN and SEROUT with it.
▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
Parallax posesses power beyond belief.
Believe in it.