An IR sensor is located near the TV and wired to the receiver, which can be many feet away in the equipment rack. The receiver has an amplifier and an "IR blaster" that showers IR signals to all ...

and he brings us a write-up on integrating that HDMI switch into Home Assistant through emulating an infrared receiver’s signals. The HDMI switch is equipped with an infrared sensor as the only ...

Insert it between your TV’s IR receiver and the flame from a lighter, and pull the slots along to generate the coded pattern. Get it just right and you have a paper and lighter remote control.