Long ago I used to use a USB enabled ZephIR to have my Mac be able to 'fire' IR commands to control any components on my AV rack.
I have not needed IR control again until recently, new home, new rules.
I can not find any references to a modern version of a IR control interface in the Indigo forums, for the Mac that will allow Indigo do control my AV devices.
What do I need to get in order for my Mac / Indigo to be able to shoot off IR commands to control my AV systems? (Turn on TV, amp, etc)