Testing UDP on ESP8266 - problems with newest 1.94+. Using UDP broadcast for Alexa integration

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opichals

For multicast support you need to use socket.addMembership() method (The dgram module is mostly compatible with node.js' https://nodejs.org/api/dgram.html). There are node.js ssdp implementations available to have a look at.

Here is an Espruino specific example of an mdns (multicast DNS) module I crafted.

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Vasily in reply to @opichals

Cool, I will try .... and I guess also socket.setMulticastInterface() can help.
But currently UDP receiving is ok already. I need a help to make correct UDP sending.

Thanks for the link https://nodejs.org/api/dgram.html, if it is fully implemented than by just using socket.send(msg, [offset, length,] port [, address] [, callback]) it should work.

Can you give me in hand in that, PLEASE...?

p.s. I did not go much in C code as I act already on .bin file with JS scripts only.

Txs, Vasily.
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Vasily in reply to @opichals

I give up now at 3AM. Seams that sending UDP package does not work.
I tried all possible ways I can immagine, also intalled SmartSniff to check on PC what are UDP package around. As well did a script that ESP will send simplest UDP package to my PC and not to Alexa. All tries are hopeless, nothing is sent (apparently).

I tried to adapt CaptivePortal as it declared to be working. Still no success.

Any help appresciated.

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