How to Build and Code an Arduino VFO Si5351 PART-4 of 4

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 [email protected] 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: [email protected] Downloads Band Surfer VFO Schematic Download https://drive.google.com/file/d/1sTjhuXY6fzZJOwcZ1PvBnuSoPbNe9Udh/view?usp=sharing 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. https://drive.google.com/file/d/1p9XvjrVsT9TAo97T3RsLvehw7oye6MHQ/view?usp=sharing Arduino Nano Sketch Download Rev 2 Used in this video https://drive.google.com/file/d/1Av-HtbWb4YyNc0y1pyT7XRemak328OU8/view?usp=sharing Arduino Nano Sketch Download From Previous Videos https://drive.google.com/file/d/1LlNtaqS5noR1IFS4LyZl9YSHui68dolV/view?usp=sharing Links to Parts Used In This Video ESP32-S3 N8R8 Narrow Body https://s.click.aliexpress.com/e/_Dmc5ACh ESP32-S3 N16R8 Wide Body https://s.click.aliexpress.com/e/_DE24AsD 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. https://s.click.aliexpress.com/e/_DEXxlsl I2C FRAM Module 32KB https://s.click.aliexpress.com/e/_DBCwVYd 8 Digit Seven Segment Display MAX7219 https://s.click.aliexpress.com/e/_DBSo57R Myewei Electronic Store https://s.click.aliexpress.com/e/_De4Pp0V Links to Parts Used In Previous Videos Arduino NANO Clone Link https://s.click.aliexpress.com/e/_Dm8Iyjb SI5153 Breakout Board https://s.click.aliexpress.com/e/_DeHxOXx OLED Display I2C https://s.click.aliexpress.com/e/_Dn3ekgl Rotary Encoder 100PPR https://s.click.aliexpress.com/e/_DBHWhsD AD831 Mixer https://s.click.aliexpress.com/e/_DBN1b0Z 8 Digit Seven Segment Display MAX7219 https://s.click.aliexpress.com/e/_DBSo57R SMA RG316 cables https://s.click.aliexpress.com/e/_Dl0oEFF 10dB SMA Attenuator https://s.click.aliexpress.com/e/_DlHLNgp