In this series of videos I go though how to build a VFO based on the Arduino platform using the SI5351. The VFO includes IF offsets, frequency displays and a high speed rotary encoder. The VFO can be used for making home brew radio projects, tuning many types of radio equipment including SDR receivers. This VFO has good performance and is relatively cheap to build. No programming skills are required and I will supply the code for the project and go through how to configure and upload it. In the video I go through how the circuits work and cover troubleshooting to get the VFO working.

If you are experiencing any difficulties please drop me a line to m0xfx.channel@gmail.com
I am planning to make a Q and A video regarding this project.

Part 4
In this video we look at a new PCB for the project, take a look at future options including the ESP32-S3, TFT LCD colour display and look at mode sensing for LO frequency shifting and .


PCBs SOLD OUT
If you would like a Band Surfer PCB, we plan to have more made. Please indicate your interest by providing your name, and we will reserve some for you. To place an order, kindly send an email with 'Band Surfer PCB' in the subject line. Please include your name, address, and the quantity required. We accept payments through PayPal.

Email Address: m0xfx.channel@gmail.com

Downloads
Band Surfer VFO Schematic Download
[ Ссылка ]

CODE UPDATE!
ESP32-S3
Dual VFO, S meter, memory backup, wifi, split VFO and lock functions.
Download. Note: there is a readme txt doc within the zip file which covers how to configure the IDE.
[ Ссылка ]

Arduino Nano Sketch Download Rev 2 Used in this video
[ Ссылка ]

Arduino Nano Sketch Download From Previous Videos
[ Ссылка ]

Links to Parts Used In This Video
ESP32-S3 N8R8 Narrow Body
[ Ссылка ]

ESP32-S3 N16R8 Wide Body
[ Ссылка ]

SPI TFT LCD Screen RGB Touch Display Module ILI9341
NOTE: The LCD driver IC used in this video is the ILI9341 320x240 pixel.
The code will only support this IC at this time.
2.2", 2.4", 2.8" or 3.2" sizes will work fine.
Also we are using a no touch display but a touch will work fine but
the VFO has no touch control functionality.
[ Ссылка ]

I2C FRAM Module 32KB
[ Ссылка ]

8 Digit Seven Segment Display MAX7219
[ Ссылка ]

Myewei Electronic Store
[ Ссылка ]


Links to Parts Used In Previous Videos
Arduino NANO Clone Link
[ Ссылка ]
SI5153 Breakout Board

[ Ссылка ]
OLED Display I2C

[ Ссылка ]
Rotary Encoder 100PPR

[ Ссылка ]
AD831 Mixer

[ Ссылка ]
8 Digit Seven Segment Display MAX7219
[ Ссылка ]

SMA RG316 cables
[ Ссылка ]

10dB SMA Attenuator
[ Ссылка ]

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