Hi, my name is Nor from Japan. I have a problem. I can not shorten the transmission time interval on Dragino LoRa Mini Dev. I use the following program code.
// Schedule next transmission os_setTimedCallback(&sendjob, os_getTime() + sec2osticks(TX_INTERVAL), do_send); break;
So I know program schedules next transmission by using os_setTimeCallback() function. This works OK, and I can see do_send() function queues next transmission request after TX_INTERVAL seconds. But my problem is that even if I shorten, make it small, the TX_INTERVAL the program code sends the packet about 33 seconds after scheduling. I want to make it smaller, like 15 seconds or 10 seconds. But I can’t make it.
I know TTN is not a real time logging system, and found following comment in GitHub forum.
Remember that TTN has a minimum time of 30 seconds per request
Is this true? Where can I see such restriction? I can not change the minimum value? It’s not recommended?