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Author Topic: Connect RF Link Transmitter / Receiver - 434MHz and MP3 Shield on an UNO  (Read 830 times)
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For my project to work I need to get my 2 Arduino uno to connect to RF Link Transmitter / Receiver - 434MHz and play MP3 files.
I have a Transmitter and Receiver working using the basic VirtualWire.h sketchs
I have a Sparkfun MP3 shield working  using SFEMP3Shield sketch (http://www.billporter.info/sparkfun-mp3-shield-arduino-library)
However I don’t know how to combine these Sketches to trigger the MP3 player.

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Code?
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Created Libraries:
NPV2 (NewPasswordV2),  TFT_Extension, OneWireKeypad, SerialServo.
Will provide libraries if asked in PM or forum.

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The code for the MP# player is to big to post but below is the code for both the transmitter and receiver.
This is the link to the MP3 player code and documentation.
http://mpflaga.github.com/Sparkfun-MP3-Player-Shield-Arduino-Library/files.html

Thank you!
tjetdraw

Code:
// transmitter.pde
//
// Simple example of how to use VirtualWire to transmit messages
// Implements a simplex (one-way) transmitter with an TX-C1 module
//
// See VirtualWire.h for detailed API docs
// Author: Mike McCauley (mikem@open.com.au)
// Copyright (C) 2008 Mike McCauley
// $Id: transmitter.pde,v 1.3 2009/03/30 00:07:24 mikem Exp $

#include <VirtualWire.h>

void setup()
{
    Serial.begin(9600);   // Debugging only
    Serial.println("setup");

    // Initialise the IO and ISR
    vw_set_ptt_inverted(true); // Required for DR3100
    vw_setup(2000); // Bits per sec
}

void loop()
{
    const char *msg = "hello";

    digitalWrite(13, true); // Flash a light to show transmitting
    vw_send((uint8_t *)msg, strlen(msg));
    vw_wait_tx(); // Wait until the whole message is gone
    digitalWrite(13, false);
    delay(200);
}

// receiver.pde
//
// Simple example of how to use VirtualWire to receive messages
// Implements a simplex (one-way) receiver with an Rx-B1 module
//
// See VirtualWire.h for detailed API docs
// Author: Mike McCauley (mikem@open.com.au)
// Copyright (C) 2008 Mike McCauley
// $Id: receiver.pde,v 1.3 2009/03/30 00:07:24 mikem Exp $

#include <VirtualWire.h>

void setup()
{
    Serial.begin(9600); // Debugging only
    Serial.println("setup");

    // Initialise the IO and ISR
    vw_set_ptt_inverted(true); // Required for DR3100
    vw_setup(2000); // Bits per sec

    vw_rx_start();       // Start the receiver PLL running
}

void loop()
{
    uint8_t buf[VW_MAX_MESSAGE_LEN];
    uint8_t buflen = VW_MAX_MESSAGE_LEN;

    if (vw_get_message(buf, &buflen)) // Non-blocking
    {
int i;

        digitalWrite(13, true); // Flash a light to show received good message
// Message with a good checksum received, dump it.
Serial.print("Got: ");

for (i = 0; i < buflen; i++)
{
    Serial.print(buf[i], HEX);
    Serial.print(" ");
}
Serial.println("");
        digitalWrite(13, false);
    }
}
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Where is the code that shows you tried to combine the MP3 player and the receiver code?
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Created Libraries:
NPV2 (NewPasswordV2),  TFT_Extension, OneWireKeypad, SerialServo.
Will provide libraries if asked in PM or forum.

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I just add the VirtualWire Libraries to the MP3 code thinking that the commands would be received through the serial port. Now on the transmitter side I just changed to code send the command (2) to play track number 2 like this, "(const char *msg = "2"smiley-wink"


Code:
/**

#include <SPI.h>

//Add the SdFat Libraries
#include <SdFat.h>
#include <SdFatUtil.h>

//and the MP3 Shield Library
#include <SFEMP3Shield.h>

//Add the VirtualWire Libraries
#include <VirtualWire.h>

 
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