MT 8870 with ATMEGA32

Discussion in 'Embedded Systems and Microcontrollers' started by louisfox, May 10, 2011.

  1. louisfox

    Thread Starter New Member

    May 10, 2011
    My project is transceiving DTMF signal via RF, but I can not receive the right DATA when testing the receiving circuit with my telephone. Here are my capture and source code.Maybe i made some mistakes in the code. Can you guy please help me!!!
  2. mehtadhaval

    New Member

    Sep 21, 2007
    Where is the RF module in the circuit ?

    Plus, check if you're DTMF decoder circuit is working properly (i.e. detecting the right key pressed) and then check the MCU code.