Simple way of interacting with PC via Android?

All I want to do is create a simple Android program with a few buttons that perform tasks on my computer. For example, I want a button that tells my computer to log off. I know that there are ways of using SSH but I am having one headache of a time getting available applications to work. I have tried working with freesshd for Windows and SSHTunnel for Android and it will not let me log on to the SSH server from my phone.

Could someone either help me figure out how to setup freesshd to work with sshtunnel or can someone help me decide a better/easier way than SSH to interact with my computer?

Security isn't really an issue, so ease of access wins as far as that goes. Thank you everyone for the help.

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