UDP Broadcast 239.255.255.250

[jayc75]

Hello guys,
anyone know how to listen to UDP Broadcast Packet at address 239.255.255.250 Port 1900?

basically how do I get the ESP8266 to use Multicast packet and listen to all traffic on 239.255.255.250 using the AT Commands.

Thank you,

[Her Mary]

try AT+CIPSTART="UDP"," 239.255.255.250",1900,1002,0

there are document says how to use AT commands。。

[jayc75]

Thank you Your Majesty,
But already tried that and it doesn't work btw I know the AT docs by heart . please try It yourself!

so anyone know how to listen to Multicast Broadcast message on 239.255.255.250 Port 1900 using AT Commands?

here is the WIKI describing what that IP is for: http://en.wikipedia.org/wiki/Multicast_address

Oh and to test the Broadcasting you can use the Device Spy Dev tool from Intel Open source project here: http://opentools.homeip.net/dev-tools-for-upnp

Cheers,

[ESP_Faye]

Hi，

AT does not support multicast，but SDK does.

Please have a try with espconn_igmp_join and espconn_igmp_leave

refer to document "Espressif IoT SDK Programming Guide" 3.8.3.2 espconn_igmp_join http://bbs.espressif.com/viewtopic.php?f=7&t=205

[jayc75]

Thank you for your reply.
Yes i have noticed that already and that is why i was hoping the AT might have such commands built but not documented .

so any chance of seing these added in the next Beta build ? please...
i can volunteer to test them if you'd like since i already have a project going that direction

thanks.

[jayc75]

@Espressif Team,
any luck of adding the join Multicast to the AT firmware please....?

thank you,

[doughboy]

although the latest API allows you to register new AT commands in your user program, I think it is preferable for the commands to be built in to the freeware.
I myself needs to have the ssl api in AT commands and requested it to be included. I want to avoid having to write the firmware and distribute it.

[jayc75]

thanks for the info..
how do I add my own AT commands since the AT firmware is closed...
can you please share documentation and examples..

thanks.

[marcoleo]

Me too would the possibility of using multicast with AT commands
I should implement this feature on devices that can handle the ACN protocol
(ACN is a suite of network protocols for theatrical control developed by ESTA.
It is Also Referred to as BSR E1.17, Entertainment Technology - Multipurpose Network Control Protocol Suite.)
I really hope that you can implement as soon as this function