Real-time streaming between two ESP32

[francescaromana]

@cotestatnt

You could use a VPN, but I'm not shure you will be able to reach a such low latency time.
In addition, VPN usually are not for free.

I did not think of VPN, that would solve the problem of the LANs but would (probably) make the delay even higher...

@cotestatnt

Try to evaluate also WebSocket (it's on TCP layer)

I already tried this with the library ESPAsynchWebServer and it is based on HTTP requests, so it is even slower than basic TCP.

@cotestatnt

Maybe it's easyier try to change the way you share data between the two device; for example have you evaluated the possibility to send a "time synced" buffer of measures instead of stream, if is feasible for your application.

This would be surely easier, but my application works on the idea that one ESP32 receives the information from the other almost instantaneously.