add_io_sample_received_callback() always using the same remote device about xbee-python HOT 3 CLOSED

Hi @zgarnes17,

Are your XBee modules 802.15.4? If so, did you configure different 16-bit addresses for your modules (MY parameter)? Or all of them to 0xFFFE?
In 802.15.4, to use long 64-bit address, MY must be 0xFFFE or 0xFFFF, otherwise modules use short source addressing (MY address).
By default, MY is 0x0000 in 802.15.4 firmware, so, by default, modules use short 16-bit addressing and 0x0000 as address.

If this is the case, both discovered nodes 0013A20041E57931 and 0013A20041E57938 have the same 16-bit address, the default one, 0x0000. So when an IO message is received from any of them, the source address is 0x0000 always and the library looks for the first discovered node with that 16-bit address.

in 802.15.4, for 16-bit addressing, you must configure all the nodes in the network with different MY values. If you prefer to use 64-bit addresses, then set the MY of all your modules to 0xFFFE or 0xFFFF.

See https://www.digi.com/resources/documentation/Digidocs/90001500/Default.htm#Reference/r_addressing_802.htm

Best Regards

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Hello @tatianaleon

Thank you much!!! That worked and solve so many headaches for me. Thanks for the fast response and the help!

With gratitude, Zgarnes

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You are welcome :-)

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