Thank you very much, I will be working on them, since those are the materials that I have to make the prototype of a mesh network with lora .which means that it is from a single channel? .
I need to connect to TTN to upload the information that mobile mesh sensors have, the information is location by gps, time, and sensor measurements. to see them online on a map.

Greetings to all, I am new to the forum, I do not speak English very well, I am creating a mesh network of sensors with RFM95. I have arduino mega 2560 and shield ethernet w5100 and RFM95, I want to create a gateway to upload the data read from the RFM95 nodes through the gateway, the gateway must connect TTN to show the data. I am a beginner I beg you help please, I hope you can guide me thank you very much.