A PLL VFO/controller for a multi-band SSB/CW transceiver, targeting Arduino Nano and si5351. The script is SP_VFO_Controller.ino. An initialiser script must be executed once to initialise EEPROM.

This project implements a VFO and BFO using an Arduino with Si5351 signal generator. You can controll the VFO using an encoder and also a SmartPhone via a mobile application developed here for this ...

This radio uses two of the SI5351 clocks: one for the VFO and one for the BFO. This reduces the part count, and could make this design quite cheap.

DIY sensitive Software Defined Radio with AD9850 VFO and Arduino by Mirko Pavleski Publication date 2020-02-16 Topics Youtube, video, Science & Technology, diy simple radio, software defined radio, ...

One thing of interest is the breadboard the VFO is built on. [N2HTT] used an Arduino and a small display along with an encoder to control the chip.