How to build your first TTN node: Arduino + RN2483

I got it working! Unfortunately some soldering errors on the Arduino Nano made it smoke, but luckely the RN2383 was not damaged. After some 'correctional' wiring it started to send out the test packets, received by my Gateway and send to the TTN network.

Node:

Gateway:

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TTN MQTT Packets:

Thanks @jpmeijers for the help today!