In this article, we're building a picture frame using a Raspberry Pi and a regular screen.

• A Raspberry Pi, for example a 1B.
• SD card
• Network access
• Network share for the images (e.g. NFS)

1. Install Raspian Lite on the SD card.
2. Edit /etc/fstab to mount the network share. Skip this step if using a local directory.

   host:/export/media /export/media  nfs4     auto            0       0

   Replace host:/export/media with your host and export name. See x.antiguru.de for NFS exports.

3. Crate a script picframe.sh in /home/pi. Update myfolder to point to the correct location.

   #!/bin/bash
   myfolder="/export/media/picframe"
   if [ -d "$myfolder" ]; then
    if [ $(tty) == /dev/tty1 ]; then
      find -L "$myfolder" -name *.jpg -type f -print |shuf  > /home/pi/pic1.list
      while [ true ]
      do
        # check if network share still exists
        if [ ! -d "$myfolder" ]; then
          exit 1
        fi
        find -L "$myfolder" -name *.jpg -type f -print |shuf  > /home/pi/pic2.list &
        fbi -a -t 90 --noverbose --noreadahead --list /home/pi/pic1.list
        # this is a hack so after fbi crashes (which it will) the same list isn't
        # shown again from the start
        # check if network share still exists
        if [ ! -d "$myfolder" ]; then
          exit 1
        fi
        find -L "$myfolder" -name "*.jpg" -type f -print |shuf  > /home/pi/pic1.list &
        fbi -a -t 90 --noverbose --noreadahead --list /home/pi/pic2.list
      done
    fi
   fi
   exit 0

4. Make the script runnable: chmod u+x picframe.sh
5. Now boot the pi from the SD card.
6. Install fbi: sudo apt update, sudo apt upgrade, sudo apt install fbi
7. Configure auto login: sudo raspi-config
8. Append ~/picframe.sh to /home/pi/.bashrc
9. Configure read-only overlay fs: sudo raspi-config