Hi all,
I am trying to create an application where different LoRa devices are synchronised based on a time from TTN server. There is previous post discussing my question Gateway timestamps in uplink metadata - how calculated? but I would like to ask more about it and the topic is closed.
For example lets say my GW gives me the bellow information:
{“app_id”:“app”,“dev_id”:“app_node2”,“hardware_serial”:“00777F8FCFF87309”,“port”:1,“counter”:4,“payload_raw”:{“type”:“Buffer”,“data”:[204,44,91,137,131,23,25,48,209,206,153,236,9,88,133,32,132,149,176]},“payload_fields”:{“Received_payload”:“Ì,[\u0017\u00190ÑÎì\tX °”},“metadata”:{“time”:“2020-01-15T14:41:55.369687496Z”,“frequency”:867.3,“modulation”:“LORA”,“data_rate”:“SF7BW125”,“airtime”:71936000,“coding_rate”:“4/5”,“gateways”:[{“gtw_id”:"-----",“timestamp”:1880628275,“time”:“2020-01-15T14:41:55.337396Z”,“channel”:4,“rssi”:-29,“snr”:9.8,“rf_chain”:0,“latitude”:-,“longitude”:17.93968,“altitude”:-}]}}
For instance, the time from metada where is it coming from?
How is it calculated ?
Best,
Haris