Syntez_Si5351_Si570

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Universal Digital VFO Si570/Si5351

Oscillator - Si570 and/or Si5351
CPU - Arduino Nano 5v ATMEGA328
Display:
2.8" SPI TFT ILI9341
1.8" SPI TFT ST7735
LCD 1602
OLED 0.91" 128x32, OLED 0.96" 128x64, OLED 1.3" 128/132x64
Realtime clock - DS3231(preffered) or DS1307(TinyRTC) or PCF8563
Keyboard, BPF & other - PCF8574
Rotary encoder - optical 360-400 pulse/turn or mechanical 20 pulse/turn

Allow any combination of two Si5351 and one Si570: Si5351, Si570, Si5351+Si5351, Si570+Si5351, Si570+Si5351+Si5351.
Dual VFO A/B, SPLIT, RIT.
Save current freq and band to EEPROM.
CAT-enabled (Kenwood protocol).

Support different TRX architecture:

1. Single and double IF superheterodyne.
2. Up-conversion with general coverage 2-30MHz and high IF.
3. Direct conversion with 2x or 4x output.
4. Direct conversion with quadrature output.

Project homepage http://www.ur5ffr.com/viewtopic.php?t=174

Required libraries:

1. PDQ GFX with packed font support https://github.com/andrey-belokon/PDQ_GFX_Libs. You need install PDQ_GFX, PDQ_ILI9341 and PDQ_ST7735
   
2. UR5FFR_Si5351 https://github.com/andrey-belokon/UR5FFR_Si5351
3. SSD1306Ascii - install from Arduino IDE

Copyright (c) 2016-2020, Andrii Bilokon, UR5FFR License GNU GPL, see license.txt for more information