Limited amount of nodes in mesh network?

nootropicdesign / lora-mesh

LoRa mesh networking

MIT License

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Limited amount of nodes in mesh network? #2

Closed vannimb closed 4 years ago

vannimb commented 5 years ago

Hello, I see in LoRaMesh.ino the following lines: nodeId = EEPROM.read(0); if (nodeId > 10) { Serial.print(F("EEPROM nodeId invalid: ")); Serial.println(nodeId); nodeId = 1; }

does this means that the mesh network size is limited to 10 units maximum including the gateway?

If this is the case, is there a reason for this limit?

noeldum commented 4 years ago

I second the question. What is the max number of nodes in Radiohead?

nodeid is defined as uint8_t. Does this means we are limited to 256 nodes?

nootropicdesign commented 4 years ago

This particular demonstration supports 10 nodes, but I've only tried 4. More nodes means constant collision on the airwaves, depending on how often a node transmits. The RadioHead library supports only 255 nodes, per the 8 bit value. I don't think 0 is a valid node number.