Bandvolt interface for between the Hermes Lite 2 and the Xiegu XPA125B amplifier.
Allows the Hermes Lite 2 to control the band selection on the XPA125B.
Watch the YouTube video for more information.
While I could of used just one Arduino and then used a digital PWM pin, with a low pass filter for the Bandvolt DC, I wanted to use other I2C devices on the second Arduino.
Two .ino files for each Arduino.
