Can anyone please help me in writing code for DTMF MT 8870 with 8051
i am getting data from dtmf but 8051 is not reading data. i am attaching circuit diagramEDITED CKT..png
Can you also post up your code as well?
3rd May 2012 06:05 AM
thnx for reply
here is code
start: mov a,p1
OK...you'll need a bit more code than that to make this thing work. However, I need a bit more information as to what your project is supposed to do when all is said and done. Can you give me a description of what you are trying to make this circuit do?
4th May 2012 05:35 AM
i simply wants to switch on the relay connected on p2 ON & OFF by pressing 1 & 2 from mobile
data is changing on o/p of dtmf but P89v51rd2 is not reading it and not giving o/p on p2
Last edited by gagandeep; 4th May 2012 at 05:37 AM.
please help me,
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