SonosUPNP Library won't compile on ESP8266-01 (version 3.1.2) and Arduino IDE (Windows 1.8.19) #9219

mrlightsman · 2025-01-15T18:17:42Z

mrlightsman
Jan 15, 2025

I know the SonosUPNP (T.Mittet) library is pretty old (https://github.com/tmittet/sonos). But it still very useful to me. I can read a sketch off an old ESP and write it to a new one without issue. But if I take the same sketch and try to compile it now, it will not compile. Does anyone have a working version of the library? Or can you point me in the direction of a suitable substitute?

My end goal is to update my SonosIR sketch from an old instructable I found online years ago (https://www.instructables.com/SonosIR/). Any advice you can share will be greatly appreciated. Thank you.

Here is my code (straigh from the instructable):
/* SonosIR.ino



Version 1.0

This program works like an interface between a Sonos device using ethernet and an amp+remote using IR commands

The Arduino connects to a Sonos device and polls for changes in the play state each second.
A Pin defined by IR_SEND_PIN is connected to an IR diode (remember a resistor limiting the current to max 20mA which is the max current from a IO pin)
#A - If the Sonos state goes from pause/stop to play, an IR signal is sent to the amp powering it ON and selection the correct input
#B - If the Sonos state goes from play to pause/stop, after a delay of 5 minutes, an IR signal is sent ro the amp turning it OFF

There is also an IR reciever connected to a pin defined by IR_RECV_PIN
This IR reciever recieves signals from the remode and has the following functions:
#1 - If the input of the amp is changed from the one connected to Sonos the shutdown procedure (#B) is aborted
#2 - If the amp remote buttons play or pause/stop is pressed, Sonos playback is started/paused
#3 - If the amp remote buttons prev or next is pressed, Sonos goes eiter to previous or next song in the queue

The amp used is a Denon AVR-1804 with the remote RC-940. Codes: http://assets.denon.com/documentmaster/us/denon%20master%20ir%20hex.xls
The protocol used here is Sharp. http://www.sbprojects.com/knowledge/ir/sharp.php

Author:
Henrik Buestad 12.11.2016

*/

//IRremote library. https://github.com/z3t0/Arduino-IRremote

//To make this work with Denon amps like mine you need my updated ir_Sharp.cpp, IRRemote.h and irRecv.cpp files

//which you can find in my fork of Arduino-IRremote: https://github.com/buestad/Arduino-IRremote

#include <IRremote.h>
//SonosUPnP library. https://github.com/tmittet/sonos

#include <SPI.h>

#include <ESP8266WiFi.h>

#include <WiFiManager.h>

#include <WiFiClient.h>

#include <SonosUPnP.h>

#include <MicroXPath_P.h>
//Pins

#define IR_SEND_PIN 3 //this is hard-coded in the IRremote library

#define IR_RECV_PIN 2
//Constants

#define SONOS_STATUS_POLL_DELAY_S 1 //Poll the sonos each second

#define AMP_POWER_OFF_DELAY_S 300 //Wait 300 seconds = 5 minutes before turning off amp

#define ETHERNET_ERROR_DHCP "E: DHCP"

#define ETHERNET_ERROR_CONNECT "E: Connect"
WiFiClient g_ethClient;

SonosUPnP g_sonos = SonosUPnP(g_ethClient, &ethConnectError);
WiFiManager wm;
//The Sonos device IP and ID (can be found in the Sonos app)

IPAddress g_sonosIP(192, 168, 0, 223);

const char g_sonosID[] = "0123";
IRrecv irrecv(IR_RECV_PIN);

IRsend irsend;

decode_results results;

unsigned long lastSonos = millis();

unsigned long lastIR = millis();
bool cPlay;

int offTimer = -1;
void setup()

{

//Serial.begin(9600);

//delay(10);

irrecv.enableIRIn(); // Start the receiver

delay(100
8000
);

wm.autoConnect();

}
void loop()

{

unsigned long now = millis();

if((unsigned long)(now - lastSonos) > (SONOS_STATUS_POLL_DELAY_S*1000) )

{

pollSonos();

lastSonos = now;

}

if (irrecv.decode(&results))

{

if ((unsigned long)(now - lastIR) > 250)

{

IRAction(results.decode_type, results.address, results.value);

//Serial.print(results.decode_type == SHARP ? "SHARP ": "UNKNOWN ");

//Serial.print(results.address);

//Serial.print(" ");

//Serial.println(results.value, HEX);

}

lastIR = now;

irrecv.resume(); // Receive the next value

}

}
void IRAction(unsigned int protocol, unsigned int adr, unsigned int data)

{

if(protocol != SHARP || !(adr == 0x02 || adr == 0x08))

return;

switch(data)

{

//change source to CD, TV, DVD ...

case 0xC4: //CD

case 0xC9: //TV

case 0xE3: //DVD

//Serial.println("Changed source");

if(offTimer >= 0 && cPlay)

{

offTimer = -1;

cPlay = false;

}

break;

case 0x5C: //Play

//Serial.println("Play");

g_sonos.play(g_sonosIP);

break;

case 0x5E: //Stop

//Serial.println("Stop/Pause");

g_sonos.pause(g_sonosIP);

break;

case 0x58: //Skip next

//Serial.println("Skip next");

g_sonos.skip(g_sonosIP, SONOS_DIRECTION_FORWARD);

break;

case 0x59: //Skip prev

//Serial.println("Skip prev");

g_sonos.skip(g_sonosIP, SONOS_DIRECTION_BACKWARD);

break;

default:

//not recognized...

break;

}

}
void pollSonos()

{

int st = g_sonos.getState(g_sonosIP); //play

bool pl = isPlay(st);
//Serial.print("pl = ");

//Serial.print(pl);

//Serial.print(" cPlay = ");

//Serial.print(cPlay);

//Serial.print(" timer = ");

//Serial.println(offTimer);
if(pl && !cPlay)

{

//Change state from stop to play

//Serial.println("Amp ON!");

cPlay = true;

//Denon Sharp Device 2: Power ON: adress 02 = 0x02, data 225 = 0xE1

irsend.sendSharp(0x02,0xE1);
delay(5000); //The amp takes some seconds to turn on before beeing able to set source...

//Denon Sharp Device 2: CDR/TAPE: adress 02 = 0x02, data 210 = 0xD2
irsend.sendSharp(0x02,0xD2); 
irrecv.enableIRIn(); // Start the receiver over again. It "dies" after a send...

}

else if(!pl && cPlay && offTimer == -1)

{

// Serial.println("Schedule Amp OFF...");

//Change state from play to stop, but wait...

offTimer = AMP_POWER_OFF_DELAY_S;

}

if(pl && offTimer != -1)

{

offTimer = -1;

}

if(offTimer > 0 && cPlay)

{

offTimer -= SONOS_STATUS_POLL_DELAY_S;

}

if(offTimer == 0 && cPlay)

{

// Serial.println("Amp OFF!");

cPlay = false;

offTimer == -1;
//Denon Sharp Device 2: Power OFF: adress 02 = 0x02, data 226 = 0xE2
irsend.sendSharp(0x02,0xE2); 
irrecv.enableIRIn(); // Start the receiver over again. It "dies" after a send...

}

//Serial.println("pollSonos() done...");

}
bool isPlay(int st)

{

if(st == 1)

return true;

return false;

}

void ethConnectError() { //Serial.println(ETHERNET_ERROR_CONNECT); }

Here is the error.
Arduino: 1.8.19 (Windows Store 1.8.57.0) (Windows 10), Board: "Generic ESP8266 Module, 80 MHz, Flash, Disabled (new aborts on oom), Disabled, All SSL ciphers (most compatible), 32KB cache + 32KB IRAM (balanced), Use pgm_read macros for IRAM/PROGMEM, dtr (aka nodemcu), 26 MHz, 40MHz, DOUT (compatible), 1MB (FS:64KB OTA:~470KB), 2, nonos-sdk 2.2.1+100 (190703), v2 Lower Memory, Disabled, None, Only Sketch, 115200" C:\Users\thisUser\Documents\Arduino\libraries\sonos\src\SonosUPnP.cpp: In member function 'const char* SonosUPnP::getUpnpService(uint8_t)': C:\Users\ thisUser \Documents\Arduino\libraries\sonos\src\SonosUPnP.cpp:788:1: error: control reaches end of non-void function [-Werror=return-type] 788 | } | ^ C:\Users\ thisUser \Documents\Arduino\libraries\sonos\src\SonosUPnP.cpp: In member function 'const char* SonosUPnP::getUpnpEndpoint(uint8_t)': C:\Users\ thisUser \Documents\Arduino\libraries\sonos\src\SonosUPnP.cpp:799:1: error: control reaches end of non-void function [-Werror=return-type] 799 | } | ^ cc1plus.exe: some warnings being treated as errors exit status 1 Error compiling for board Generic ESP8266 Module.

This report would have more information with "Show verbose output during compilation" option enabled in File -> Preferences.

earlephilhower · 2025-01-15T20:00:25Z

earlephilhower
Jan 15, 2025
Maintainer

GCC is showing the exact error. The library has a function getUpnpServive which is declared to return a const char * but isn't returning anything. This will crash on newer GCCs and must be fixed in the library, hence the fatal error.

C:\Users\thisUser\Documents\Arduino\libraries\sonos\src\SonosUPnP.cpp: In member function 'const char* SonosUPnP::getUpnpService(uint8_t)':
C:\Users\ thisUser \Documents\Arduino\libraries\sonos\src\SonosUPnP.cpp:788:1: error: control reaches end of non-void function [-Werror=return-type]
788 | }
| ^
C:\Users\ thisUser \Documents\Arduino\libraries\sonos\src\SonosUPnP.cpp: In member function 'const char* SonosUPnP::getUpnpEndpoint(uint8_t)':
C:\Users\ thisUser \Documents\Arduino\libraries\sonos\src\SonosUPnP.cpp:799:1: error: control reaches end of non-void function [-Werror=return-type]
799 | }
| ^

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SonosUPNP Library won't compile on ESP8266-01 (version 3.1.2) and Arduino IDE (Windows 1.8.19) #9219

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earlephilhower Jan 15, 2025 Maintainer

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earlephilhower
Jan 15, 2025
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