FT8 operation with Teensy
taken from here: https://groups.io/g/ucx/files/W5BAA_Pocket-FT8
takes advantage of this: https://github.com/kgoba/ft8_lib
Thanks to Charley W5BAA and Karlis Goba, YL3JG who have done ALL the programming effort !
My repo is just a place to put the files, because the original code is not on github.