@robert-hh I changed P8 to P9 and it works great! Thank you so much!

Any news?

Found my answer after hours of looking around. Found this beautiful post on TTN regarding decoding the values of different types and what have you found here by Arjanvanb on TTN The main answer was posted on Stackoverflow by Ilya Bursov.

@jmarcelino I've tweaked the LoRa configs in every way I can think of. I get the same results when using data rate 4. I suppose the next step would be to examine if the packet (header + payload) is being created correctly through socket.send() however I know of no way to do that at the uPython command level. Any suggestions of next steps?

@bucknall @jcaron @jmarcelino Guys, mystery solved. It seems like I have already damaged the sender Pycom by sending packets before attaching the antenna to it (improper use...). Now I used another Pycom acting as the sender and there is <1% packet loss. Lesson learned the hard way. Always read all documentation before playing around with the board :/