USB Powered Light Bulb
I'm trying to power a light bulb on my fish tank so I can turn it on and off remotely.
I believe powering the light bulb is as simple as connecting the USB's black and red cables to the matching cables on the bulb connector.
However, how would I turn the bulb off from my computer without unplugging the USB. I think I need to use the bus but what is the missing component I need between the computer and bulb? Or is it as simple as umount?
I think if it's unmounted, it's still getting power, otherwise unmounted devices would not be detected.
I can't solve the problem, but I can assure you this :)