Is it possible to use device with udp protocol ?

[Stephan35]

Hello
What do you think about UDP ?
Is it possible to add an udp listener ? (like node-red)
Thanks.
Best regards

[jkandasa]

@Stephan35 Yes, this good request. However when we use UDP, we may end up with data loss.

[Stephan35]

Thanks,
I know about dataloss with udp .
Too many data send may flood lan.
Also i tried async udp with esp8266 , created a mesh with other esp work fine.
in fact i losed data when sending or receiving tcp request pendind udp request.
best regards

[jkandasa]

@Stephan35 We have to design UDP based structure to send receive data. Let me find out a way. Give me some hints, if you have any?

[Stephan35]

@jkandasa said:

Give me some hints, if you have any?

ok, i go again with udp and node-red , i will send you back all i understood.

2 way for node ,
first in loop every 150ms max , listen udp port (i will confirm back).
second , use async udp of menodev wich work fine for me.

So that mean MyController maybe have to get also async udp to unmiss udp data.

I meet some issue with broadcasting, because i created mesh in udp.

Also i used ascii udp datagramm , basic but easiest way for me : something like "down|nodename|get|gpio1"
"up|nodename|result|gpio1|0"
"down|nodename|set|gpio1|1"

Every node can read udp, so , it is very important to specify way and kind of action.

Hope will help.

Best regards.