MostEpic pi projects


#1

My father-in-law is an avid photographer. Hours are spent behind the lens each and every holiday. Heck, he’ll spend time in his garden taking photos of nothings.
After a bit of tweaking, the photos are showcased on an old laptop connected to an old flat screen tv in their living room.
The laptop broke a few weeks ago, and I was tasked to come up with a new idea.

My idea was to get a raspberry pi, and together with some photo viewer software, present a slideshow on the TV.

Simple as that.

I bought the pi zero, without wireless, hdmi converter, and USB converter. I’m using an old Sony z5 mini charger, and my wireless keyboard. Don’t know where my wireless mouse is, so I’m without that.
I installed raspbian via Noobs and played around a bit. Realised installing other software won’t be easy without internet, then realised there’s no free port for a flash drive to show photos from.
I’ve got the option of getting a USB hub, but I’m not sure if there will be enough power going through the pi?
@murfle?


#2

Generally, I personally only get powered USB hubs if/when I need them, where the hub gets plugged in to the wall socket. But for a keyboard/mouse, unpowered should be fine, and probably a flash drive as well. An external hard drive without its own power supply might be a problem though…

Does the pi zero not have a microSD slot, or is the memory onboard?


#3

Great stuff.
It’s got an SD card slot, the OS is on there. Not sure if it’s a good idea to make a photo folder on the SD card to place photos in…
I’ll give an unpowered hub a try


#4

There’s no reason not to put the files on the SD card. just do a proper shutdown of the O/S, put the card into a reader, and copy them over.

True, a flash drive would work a bit easier though. Depends on how often he updates the photos.


#5

Let us try it like this first then. I’ll get his input as well. Thanks for the help


#6

Just a FYI, be careful with Pi’s and using powered USB hubs you don’t want to backfeed power into the PI through its normal USB ports, you get hubs that will power everything except one port to connect the PI to, or you can make your own if you are willing to open a hub and cut some wires.


#7

I can imagine this would be a problem with cheap hubs, but a hub should have a B port for connecting to the Pi, and A ports for your accessories. Hook the power supply up to a UPS to prevent surges from making its way into the hub, and there should be minimal risk.