I have a Fangor F-506 projector, which conveniently includes a side compartment for my Roku Streaming Stick to live in. This combination works pretty well for the sake of playback, but I have to use my projector's IR remote for volume, mute, etc.
I tried many, many of the manually selected remote control options from the Roku's vast menu, but none would control my projector. I was able to capture the commands, though, and replicate them with an IR blaster, so I offer them here in hopes that Roku's fine software developers might integrate them into the available choices:
(captured, and tested by sending, as NEC 32-bit codes; I didn't experiment with 16-bit)
Code | LSB | Width | Command |
0xFF15EA | 0xFFA857 | 32 | Power |
0xFF11EE | 0xFF8877 | 32 | Mute |
0xFF6B94 | 0xFFD629 | 32 | Volume + |
0xFF31CE | 0xFF8C73 | 32 | Volume - |
0xFF7986 | 0xFF9E61 | 32 | OK |
Note that after pressing "Power" once to turn off the projector, it displays a confirmation menu, at which point one must press either "OK", or optionally "Power" again, to confirm shutdown.
Even if you find a different brand that uses the same IR commands you will never have access to OK tv command via Roku remote!! Just power, volume, and mute.
I understand there's no dedicated button for an OK command, but the Power button could either transmit the Power and OK codes in sequence (with a short delay), or the user will just need to press the Power button twice. I was just hoping Roku engineers might weigh in here on whether this is enough to go on or if they'd need codes in a different format.