I want to control 7 AC bulbs using a microcontroller. Only one bulb will be ON at a time. I can do that using 7 relays. But Is there any alternative mechanism or IC that can do that with low cost, less wiring and with saving space?
Remember, I don't need more than one light being turned on, but with relays, any number of lights can be turned on and off; so relays are kind of a waste here.
Optocouplers and TRIAC can be used but it will not be low cost or less wiring than relays.
PS: I'm not a graduate of Electronics Engineering (I'm a Computer Science graduate). I thought it will be helpful to know when you're answering.