particle-mesh-broadcast

Example of how to broadcast messages received from the local WiFi over the local mesh network of Particle devices (using UDP).

How does it work?

This example consists of two parts:

• mesh_sender - Sets up a simple UDP server running on port 8888 of your Argon device. It then forwards any incoming packet into the mesh network, broadcasting it to the multicast address ff03::1:1001 on UDP port 31313
• mesh_listener - Runs on your end devices, and listens for UDP packets on port 31313 of the above multicast address. It prints the contents of any incoming packet to the Serial console

Running the example

You will need one Argon and one (or more) Xenon devices.

Flash mesh_sender to your Argon device, and mesh_listener to your Xenon device(s).

Then, connect one of your Xenon devices to the PC via USB, and monitor its serial port using the Particle CLI:

particle monitor --follow

Make sure your Argon device is connected to WiFi, find its IP address and then use the following command to send a UDP packet to your Argon:

particle udp send 192.168.1.106 8888 "It works!"

Replace 192.168.1.106 above with the actual IP address of your Argon device.

You should see the following message appearing on your Xenon monitoring console:

Got packet: It works!

Congratulations! You have successfully broadcasted a message over your mesh network.

License

Copyright (C) 2018, Uri Shaked. Released under the LGPL license.

Parts of this example are based on code found in the particle-iot firwmare.