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  • DTMF Shield - Telephone Interface

DTMF Shield - Telephone Interface

This Shield is a Dual-tone multi-frequency signalling module decoder for Arduino With its audio connector you can decode the crazy funny noises common phones make. If you are not sure what I'm talking about, imagine a home phone while pressing several of its keys. These Touch-Tones have a specific frequency or sound that this module can decode. This Shield is an Audio code system that will allow you to send commands to your Arduino via Audio signal. Together with GMS / GPRS / GPS shield, this module can communicate your Arduino with any phone landline or Cell phone in the world, within GSM signal range. Which goes as far as your cellphone.

Code Example




/* DTMF.cpp - TEST code for DTMF library */

#include "dtmf.h"

DTMF dtmf; // default set to DFRobot DTMF board pins, Speaker pins

void setup()
{
 Serial.begin(9600);
}

void loop()
{
  // Play a default number with all possibilities
  //dtmf.playDTMF();     
  
  // Read DTMF codes one by one and print it on Serial
  int myDtmf;
  myDtmf = dtmf.getDTMF();
  if(myDtmf != -1) Serial.println(myDtmf);
  delay(80); // to avoid getting repeated output.
}

Resources

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  • 1 x DTMF Shield (Telephone Interface)


DTMF Shield - Telephone Interface

  • Brand: DF Robot
  • Product Code: DFR0308
  • Weight: 0.026kg
  • Product Status : Active

    • Stock

    Warehouse Stock Status Location
    Centurion In Stock FF144
    Stellenbosch Limited Stock S8
    Bulk Location No Stock

    We ship free of charge between branches to complete your order.

  • R326.00 (Inc Tax: R374.90)


Tags: DTMF, Shield, Arduino, interface, Telephone