Unique ID for Sending & Receiving [solved]

#1

I’m looking for a way to ensure packets recieved come from a paired unit, so that several pairs in close proximity do not recieve incorrect data. Is there a way to create unique ID for the receiving unit to check before storing packet data?

Edit:

Sorry for not checking LoRa.SetSyncWord() documentation thoroughly first

Thanks for the responses

#2

Maybe you can take advantage of the ESP32’s Chip ID?

1 Like
#3

I use the following command (arduino environment) to get the mac address which is unique to the board:

String ID = WiFi.macAddress();