FAUXMO ESP library

Projects Networking, Protocols, and Devices
1

I'm using Fauxmo library to work with Alexa Dot. I would like to identify the Alexa device which is requesting for a command.
Is it possible and if yes how?
Thanks by advance for your help!

2

This is possible only if your modify the library. The current version of the library doesn't offer that information to the callbacks.

3

Hello Pylon,
That's what I thaught, I had a look to library code but i don't know where to investigate in the code, may be arround the http request from Alexa, could you give me a track ?
Thanks by advance for your help.

4

I'm not experienced in the protocol but I guess you should modify the _onTCPControll() routine, access the client parameter, get the pcb_tcp structure by calling the pcb() method on it and use the remote_ip field of it (of type ip_addr_t).
Remember this will be a lot of work, you'll be using methods explicitly marked as "do not use" and there's no guarantee that future version will still support this.
Be sure you use a version control system (git is the only relevant player nowadays) so you at least might be able to use later versions of the libraries.

5

Hello Pylon,
That's great of you to have investigated to give me a track to setup the fonctionnality I'm looking for.
For some days I will be far from my computer so I'll to do further what's you propose me.
Thanks again for your help, I'll let you know as soon as possible !

6

Hello Pylon,

As you suggested me, in fauxmoESP.cpp I investigate the _onTCPControll() routine and modify it in this way.

I replace:

_setCallback(id, _devices[id].name, _devices[id].state, _devices[id].value);

by:

_setCallback(client->remoteIP().toString().c_str(), id, _devices[id].name, _devices[id].state, 
         _devices[id].value);

Then in fauxmoESP.h I made this modifcation.

I replace:

typedef std::function<void(unsigned char, const char *, bool, unsigned char)> TSetStateCallback;

By:

typedef std::function<void(const char *, unsigned char, const char *, bool, unsigned char)> TSetStateCallback;

And finally in my code I modify the fauxmo.onSetState call back event in accordance with the new signature and it works perfect!

Thanks to have helped me!

7

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