I based it off something similar to this https://blog.marxy.org/2018/12/minimal-wspr-transmit-with-arduino-and.html https://blog.marxy.org/2018/12/minimal-wspr-

I based it off something similar to this https://blog.marxy.org/2018/12/minimal-wspr-transmit-with-arduino-and.html https://blog.marxy.org/2018/12/minimal-wspr-transmit-with-ar... and moved it to Pico from arduino