UDP and TCP in Mesh

[rickkas7]

As it turns out, I was wrong. The gateway is more of a router than I thought. You still cannot connect to the outside world using TCP, but UDP works surprisingly well.

You can send UDP to an IPv4 host on your local LAN or the Internet, and get responses back to your Xenon transparently!

Sending data with mesh devices

As it turns out, I misunderstood a few things about how data exchange works on mesh devices, and there are a lot more options for sending data from Xenons directly to the Internet, if you use UDP. In fact, you can communicate directly with IPv4 hosts on the Internet using UDP, directly from the Xenon! Particle.publish and Particle.subscribe The standard Particle.publish and Particle.subscribe functions work across the mesh network, and also allow communication with APIs (via webhooks and SSE) a…