Working in conjunction with a separately available Arduino controller, the Shield embeds an SDI control signal in the Program return feed that will operate compatible cameras, such as the Blackmagic Studio Camera or URSA Mini with the Studio Camera firmware update. These are the same controls output via an ATEM series switcher.
This open communication protocol takes advantage of blanking space in the SDI data stream to add talkback, tally, and other camera control information directly to the camera via the program return feed. Because of its open nature, you can create custom solutions that are compatible with switchers, cameras, and other supporting hardware