Skip to content
A simple VFO for old or homebrew radios, full customizable with Atmega328.
Branch: master
Clone or download
Latest commit e887f2c Oct 16, 2017
Type Name Latest commit message Commit time
Failed to load latest commit information.
Prototype_Photos Worklog Oct 7, 2017
src AD9850 code Oct 16, 2017
Arduino.SchDoc Upgrades Jun 16, 2017
Arduino_VFO.OutJob File upload Jun 8, 2017
Arduino_VFO.PcbDoc Upgrades Jun 16, 2017
Arduino_VFO.PrjPcb File upload Jun 8, 2017
Arduino_VFO.PrjPcbStructure File upload Jun 8, 2017
Arduino_VFO_Schematic.pdf PDF Schematic Jun 16, 2017 Gerber Files Jun 23, 2017 Update Oct 15, 2017
RFATT.png 3D Photo of the Board Jul 16, 2017

Ham radio VFO with Arduino & AD8950

This is an VFO for use with old Ham Radio transceivers and with QRPs. I'm intending to use on the Ararinha-QRP-Triband project that I posted the PCB here.

It's a 10x10cm board with a nice all metal, no detent encoder from CTS.

I already ordered this PCB. I will work after the V1.0 on a smaller PCB so you can embedded the VFO or build a smaller radio. I will also add an option to connect the Encoder with a Header. That's can be a nice feature.



V1.0 PCB found bugs:

  • Inverted 78L05 regulator
  • Inverted LCD
  • Third Band pinout isn't on a GPIO pin! Only Analog Input. A cheap workaround is possible via CD4555B.


You can’t perform that action at this time.