What interface does your
existing system need?

Give a brand and model; get the protocol, hardware and AED cost.

HVAC / AC

Lighting

AV / Home Theatre

CCTV / Security

3 steps to your integration spec

"I want to control my Daikin AC from my phone."

⇒

Brand, model, build stage — the details that determine the right interface.

⇒

Protocol, hardware name, AED cost, integrator needed — yes or no.