Lorawan library for Arduino Nano IOT33 (to work with TTN)

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I am going to send temperature of a sensor via arduino nano iot33 and
dragino lora sheild (module) to TTN, but after uploading LMIC lib to
the board the port loose and board disconnect. but it works properly
with arduino uno (Because I needed 256kb memory as arduino uno for me is few with 32kb mem). I couldn’t find any one has connected nano IoT33 to TTN via any lora module (There are scenarios with arduino nano but not with nano IoT33). the problem could be lorawan library for Nano IOT33. Could you please help me?

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Good morning,
After a lot of study and month time consuming at this issue. I found a solution which works at the TTN forum at this link: (at the end of the page)
const lmic_pinmap lmic_pins = {
.nss = 6, // chip select on SAMD21 mini
.rxtx = LMIC_UNUSED_PIN,
.rst = LMIC_UNUSED_PIN,
.dio = {2, 3, 4}, //DIO0, DIO1 and DIO2 connected};
and leave other pins like arduino uno.
I will put this solution also in my youtube:
(https://www.youtube.com/channel/UCZpfJjgR5zA-XrB26IhOzkA)
good luck. Amin
(Samd21 mini wired to rfm95 - #24 by Roelvdv - Hardware - The Things Network)

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