TCP Link for ATEM (on Blue Pill)

The Blue Pill app called dclink-tcp has a special mode to convert the Blackmagic Design ATEM protocol into simple TCP commands. The focus of this is to offer a relatively compatible and more comprehensive and powerful substitute to the long term SKAARHOJ product called "TCP Link for ATEM" (formerly known as "ATEM-TCP Link"). The command set and general workings makes it an almost drop-in replacement for existing installations that need support for the newer ATEM switchers. This page deals exclusively with that. However, if you are about to make a new integration with ATEM using dclink-tcp, please consider to use the more generic API offered instead of the special mode.