Here is a driver I made that will allow you to create child devices with a few different combinations of buttons, switches, volume & indicators. In any child device, click 3 dots > Settings, you enter the necessary info; IP, Port, send command, expected reply command, end of line, retries, delay before retries.
CREATOR DEVICE - Select 3 dots > Settings, then select the switch, button, volume, indicator combination you desire, then return to the main page and click CREATE CHILD DEVICE
SWITCHES - can query their status so if a setting is changed somewhere else, the switch status will update to stay in sync with the device
INDICATORS - You can change an indicators text for different needs (ON, OFF, MUTE, UN-MUTED, POWER ON, POWER OFF, MUSIC, HDMI1, etc.). Indicators have 4 available states.
All devices within a tile can be added to routines.
PULL DOWN on the device page to refresh the data immediately.
Have fun, I hope this is helpful:)
Here is the link to my channel: SmartThings. Add a little smartness to your things.