I have a question about providing power to Rpi through serial ports. Please let me know if the following would be possible.
I would connect raspberry pi to beagle bone black through serial debug ports(RX,TX,GND,+5V). It means power would be provided from the beagle bone black to the Rpi and no power cables would be plugged in to Rpi directly. Assuming that a power cable is plugged in the beagle bone black.
And one picamera would be connected to Rpi so that the Rpi captures image and transmit it to the beagle bone black using the serial ports.
My question is this. Would it be possible that one provide power to Rpi through the serial debug ports without using any other power cables? Especially, is it okay to use Rpi and picamera with such manner? I mean would there be any problem of lack of power supply?