Build your own WSPR beacon for under $20 using an ESP32 and Si5351! This tutorial demonstrates the entire build process, including crucial filtering and RF amplification steps. A web interface allows for easy configuration and monitoring.
Hi there,
Yes, this would be a great Xiao Radio project, C5 maybe 
I been subbed to this guy for a long, long time. His videos and breadth of RF knowledge among his many skills is legendary 
HIGHLY recommend folks with RF curious should watch and sub this one!
Something the size of the debugger would be Smashing it!
GL 
PJ 
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