Changing Node ID at run time

[lafleur]

Is it possible to change the node ID at run time in Setup???

ie: MY_NODE_ID

The way it looks now, it needs to be set prior to Setup or Loop being invoked using a:

#define MY_NODE_ID 10

I'm using an MQTT GW and would like each device to get its ID from a jumper on the board...

Thanks

[hek]

Yes, it should be possible with something like this...

int8_t myNodeId;

#define MY_NODE_ID myNodeId

void before () { 
      // read pins and set myNodeId    
}

[lafleur]

Good idea, but it did not worked...

The node was at 10, so I set the myNodeId = 12 in before() function, node continued to use ID of 10, most likely from Flash.... before() might be running prior to initialization of all variables...

[lafleur]

@lafleur

See issue #675 in Github...

https://github.com/mysensors/MySensors/issues/675

[lafleur]

I have this working now, it was a setup issue on my part...

#define MY_NODE_ID myNodeId

int8_t myNodeId;

#define MY_NODE_ID myNodeId

void before () { 
    // read I/O pins and set myNodeId
    myNodeId = 32;
    Serial.println( myNodeId );
}