Just occasionally though, along comes an IR remote whose protocol doesn’t follow that well-worn path [William Dudley] found himself in this position with an air-conditioning unit remote control.

[Hadley] was growing frustrated with the IR remote for his Mitsubishi air conditioner; it can issue commands, but it’s a one way interface – there’s no feedback on current status or ...

The unit serves as an air conditioner, as well as a fan and dehumidifier. It offers simple controls on board, or you can try the included handheld remote, both of which have an LED display.