Chromecast doesn't have any controls.  It's meant to be controlled from the device you are casting to it.


I guess they came out with a new version recently though, so maybe that's what you have.

edit:  just looked it up.  the chromecast remote is controlling the chromecast via RF, not IR.  The IR blaster built in is to control your TV.   you won't be able to learn commands from it.