I'm starting a small project where I want to open and close my curtains by a remote.
My arduino will run from a 9v battery (I'll probably use some kind of sleep mode).
What type of remote control should I choose ? 1. wifi - huge power consumption, and overkill for simple "open/close" control 2. blue tooth - less power, still overkill 3. RF ? 4. IR ?
I'm trying to find the cheapest solution and easiest solution, some simple receiver and transmitter for a few bucks from ali-express that consumes as little power as possible.
Any advice will be appreciated