These are a few arduino libraries we are using in the UMD/JQI AMO group.
More info to come later, but... here is some basic info.
This one is a class to handle SPI/serial communication with an AD9954 DDS chip. Still in development, but currently supports single-frequency setpoints and bi-directional linear ramps, controlled by pin PS0.
This class handles a voltage input from a frequency lock signal, and updates the corresponding DDS frequency to track the lock.
Class to handle SPI/serial communication with the ADF4350 PLL chips (slash eval boards...)
Class to interface with an external EEPROM chip (specifically, 24LC16B). The Arduino Due should be able to utilize part of its onboard Flash memory through in-application programming on the SAM3X, but I wasn't able to get that to work. Ultimately, it seemed easier to just use an external EEPROM chip.
Wrapper class for writing to SparkFun's Serial LCD display: https://www.sparkfun.com/products/9066. NOTE: you want the 3.3V version for the Arduino Due!
Library for working with Analog devices' AD536x family DACs. Should work with { AD5360, AD5361 } (16 channels, 16/14 bit DAC) and { AD5362, AD5363 } (8 channels, 14/16 bit DAC).