Could I use these (Broadlink) with ST to control my Mini-Split HVAC system?

I saw this:

It can apparently be programmed to control IR devices like my Mini-Split system. I’d like to be able to control the system remotely and have it turn certain units on or off based on routines.

Any idea if I could use these? If not, what can I use?

Maybe, but getting Broadlink to work with SmartThings is pretty complicated and requires an additional android device as a go-between. You can search the forum for information on it. So while the Broadlink remote itself is less expensive than some of the other options, by the time you add in the additional device it’s about the same cost but much more work to set up.

If it’s really an IR remote, there are two other options which will be much easier. See the following FAQ: