Yes, I’m working on this specifically for Taiwan. My reading of the specs suggests that there’s no LBT requirement there (at least for nodes). However, I do a lot of work in Japan on other projects, so I will be happy to look at adding LBT code for the IBM LMIC/Arduino LMIC code (my understanding is that nodes have to do LBT, too). I haven’t dug into all the datasheets/regs to find out how to express LBT using the SX1276 radio registers. Time-saving pointers would be gratefully accepted.