After having played with some Heltec boards with success, I try now to use the TTGO T-Beam 1.1 board but I completely fail whatever code I use. I never get indication in TTN Console that it sends something (green LED there still displays last status of previous Heltec boards I played with before). Anyone has been successful with that board in 868 mode (EU) ?
One of the last code I have used is that one: https://github.com/kizniche/ttgo-tbeam-ttn-tracker that looks to be good from what I have seen in some other threads but no success at all for me ! I get well indication that GPS is locked and that it transmits LORA data on the OLED display but nothing arrives on TTN Side I have tried both OTAA and ABP mode but same !
Any clues what’s might be the problem ? out of a defective board ? I got some confusions also about radio chipset used in it (I have tried SX1276 and SX1262 but not better !
Thanks for help/ideas/suggestions