Using the Xiao RP2040 to control a Digital LO using the Si5351

Has any one done it or successfully written code to control the Si5351?


Hi there,Pete, and Welcome.
Have a look a Jeffs work here, on it he has built several things with that part in mind.

GL :slight_smile: PJ

I was successful in getting the Xiao to Control an Si5351 PLL for use in a ham radio project.

There is a short video on you tube.

It is not a simple port over from Arduino code. But this was my 1st so maybe the next one will be easier/.

Pete N6QW


Hi there,
Nice work.
:slight_smile: PJ