Thanks, Yes I have connected the Dragino LoRa Shield to the Arduino Nano IOT33. Because I needed 256kb memory as arduino uno for me is few with 32kb mem.
1- I couldn’t find any one with clear scenario has connected nano IoT33 to TTN via any lora module (There are scenarios with arduino nano but not with nano IoT33). So where could be the problem?
2- My another doubt is I connected NSS (pin 10 in nano IoT33) to pin 10 in Dragino-Lora-sheild as I found out other guys done.
3- In my mind LMIC lib can’t work with nano IoT33 but works with arduino nano (as I saw scenarios arduino MKR 1300 has its specific lib for lorawan).
I dont think this is a commonly used board for TTN forumites - the only instance of “Nano IOT33” in search pulls up this thread so there is every chance that the chance of a response from a user familiar with the board and your use case, who is also a Forumite, who also is actively reading all/most threads to then find this one and who spots your plea for help… and who is then willing to speak up may be limited… Hence no responce.
You may get generic advice and comments from other Forumites and even a few of the ‘expert’ or experienced users of other boards but as everyone here is a volunteer that may not happen.
Have you also tried asking on the Arduino/Manufacturers forum?
The use of the Arduino IoT 33 isn’t a problem, it’s a problem with the inexplicable swap of the library being used to one that can only be used with the MKRWAN1300/1310 and a lack of patience, but absolutely mostly the first - why would the library for MRKWAN with a totally different chipset suddenly work? What was the thinking here?
It is, if you really really know how to configure around the built-in LoRaWAN stack that’s already present on the Murata module - but why would you - you’ve got a top grade module with the official LoRaMAC on it.
But that’s not important, because you have a 33 Nano and you can not send AT commands to the Dragino board which is how the MKRWAN library works because there is not serial port on the board for the RFM95 radio because it doesn’t have a serial port.
Four days ago I said you were OK to use pins 2 & 3. You can use any pins you like that aren’t for the SPI (which also needs connecting). You could have had it running 3.5 days ago …
Apart from “the helpers”, all volunteers, not having an encyclopaedic memory of the forum, the reality is that wiring any Arduino supported board with enough Flash & RAM to an RFM95 is fully and completely documented many times on the MCCI LMIC and the LMIC-node github repros.
So having told you to crack on with the pins on the 30th June, you decided to conflate the IoT33 with the MKRWAN which you never explained.
Plus you could have found that topic using the search back in June …