Can you mix different brands of LoRa devices in a mesh?

Device Compatibility and Frequency Hopping

When integrating different LoRa devices into a mesh, it’s essential to ensure they operate on the same frequency band and adhere to the same physical layer (PHY) protocol. For instance, the Meshtastic project utilizes the LoRaWAN protocol, which supports frequency hopping spread spectrum (FHSS) to minimize interference. This allows multiple devices from various manufacturers to coexist in the same mesh, as long as they’re configured to hop across the same frequency channels.

Network Topology and Device Configuration

To establish a seamless mesh network with mixed-brand devices, it’s crucial to set up a hierarchical or flat network topology. In a hierarchical topology, devices can be configured as end-devices, gateways, or routers, allowing them to communicate with each other effectively. For example, a device from one manufacturer can serve as a gateway, relaying messages between devices from another manufacturer. Configuration parameters, such as data rates, transmit power, and duty cycles, must also be carefully set to prevent interference and ensure reliable communication.

Considerations for Large-Scale Deployments

When deploying a large-scale LoRa mesh with mixed-brand devices, it’s vital to consider factors like device density, network coverage, and power consumption. A general rule of thumb is to limit the number of devices in a single hop to around 10-20 devices to maintain optimal network performance. Additionally, power consumption should be optimized to extend battery life, especially in IoT applications where devices may be deployed in remote areas.