Running the Slideshow

If you have a screen attached to your raspberry pi, you can display the generated images to the screen using the slideshow script

Script Location

If you are currently logged in as user nodeyez, exit back to the privileged user

Then run the following

sudo bash -c 'cd /home/nodeyez/nodeyez/scripts && ./slideshow.sh'

This will test the script and begin running through the images in the nodeyez imageoutput folder.

Press q to exit the framebuffer imageviewer display, and then CTRL+C to terminate the script.

If you dont see any images, then edit the slideshow script file

nano /home/nodeyez/nodeyez/scripts/slideshow.sh

Locate the line that initiates the fbi commmand (around line 12) which looks like this

fbi --vt 1 --autozoom --timeout ${timeperimage} --device /dev/fb0 --noreadahead --cachemem 0 --noverbose --norandom ${globtodisplay} > /dev/null 2>&1

Comment the part at the end that redirects to stdout and stderr to /dev/null.

You can do this by placing a # right before this at the end of the line > /dev/null 2>&1.

Save (CTRL+O) and Exit (CTRL+X).

Terminate any existing background process before restarting the slideshow script

for p in `ps aux | grep slideshow | grep -v grep | awk '{print $2}'`; do sudo kill $p; done

Now any errors will be reported to the console.

You may need to change the parameters of the fbi command to

Use a different virtual terminal (Try 0 or 1 as the value for --vt)
Use a different device for output (Try /dev/fb0 or /dev/fb1 as the value for --device)

To enable the script to run at startup, as the privileged user run the following

sudo systemctl enable nodeyez-slideshow.service

sudo systemctl start nodeyez-slideshow.service