This is the new version (V.2) of my VFO Si5351. I updated the previous project and it includes new features.
Project: [ Ссылка ]
Download Sketch and Schematics here: [ Ссылка ]
Features:
-Operation range from 10kHz to 225MHz.
-Tuning steps of 1Hz, 10Hz, 1kHz, 5kHz, 10kHz and 1MHz.
-Intermediate Frequency (IF) offset (+ or -) adjustable.
-20 Band Presets (shortcuts) to the BCB and HAM frequencies.
-Generator funcion mode.
-RX / TX Mode Selector for use in Homebrew QRP Transceivers.
-Bargraph for Signal Meter through the analog input (ADC).
-For use as Local Oscillator on Homebrew Superheterodyne or Direct Conversion Radio Receivers or Homebrew QRP Transceivers.
-For use as a simple RF/Clock generator for calibration reference or clock generation.
-Works with Arduino Uno, Nano and Pro Mini.
-Uses a common 128x64 I2C OLED SSD1306 display and Si5351 module.
-I2C data transfer, only 2 wires to connect the display / Si5351 and arduino.
-High stability and precision for frequency generation.
-Simple yet very efficient and free.
