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Si5351 Arduino Controlled GPS Corrected VFO
(QEX July/August 2015)
Updated 24 Sept, 2016

Download files:

Si5351 Arduino Controlled GPS Corrected VFO Article

New version with improved code to allow 9600 baud operation courtesy of Jan, PE1CID. (Requires change of line 260 for 9600 baud):
Si5351_vfo_v5_3.ino

Link to new sketch by SQ1GU:
http://sq1gu.tobis.com.pl/index.php?option=com_content&view=article&id=44:generator-si5351a&catid=12&Itemid=107

Eagle files for PCB production courtesy of Gary, KF9CM:
Basic Stand-Alone VFO Configuration
GPS Corrected VFO Configuration



QEX Si5351 Cover