Pi Picture Frame

A way to turn your Raspberry Pi 3 into a digital picture frame!

This is now archived as it uses older versions of Mono. See RaspPiPictureFrame for a more modern implementation.

Installing

When using the Raspberry Pi official touchscreen, you need the latest drivers by running:

• sudo rpi-update

Dependencies:

Download the following packages using your favorite package manager:

• gtk3
• nuget
• git
• matchbox-keyboard (Optional: useful for touchscreen however)
• xscreensaver (To prevent the screen from turning off).

Installing Mono:

Raspbian does not have an up-to-date version of Mono. Get the most up-to-date by running the following commands:

Taken from: http://www.mono-project.com/docs/getting-started/install/linux/

 - sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 3FA7E0328081BFF6A14DA29AA6A19B38D3D831EF
 - echo "deb http://download.mono-project.com/repo/debian wheezy main" | sudo tee /etc/apt/sources.list.d/mono-xamarin.list
 - sudo apt-get update
 - sudo apt-get install mono-complete

Installing Pqiv:

• git submodule update --init pqiv
• Edit pqiv.c to line 2859 and add fflush(stdout); In order for .NET to get output from a subprocess, the subprocess needs to flush stdout.

#ifndef CONFIGURED_WITHOUT_ACTIONS
	if(!option_status_output) {
		return;
	}
	D_LOCK(file_tree);
	if(file_tree_valid && current_file_node) {
		printf("CURRENT_FILE_NAME=\"%s\"\nCURRENT_FILE_INDEX=%d\n\n", CURRENT_FILE->file_name, bostree_rank(current_file_node));
        fflush(stdout);  // NEED TO ADD THIS!
	}
	D_UNLOCK(file_tree);
#endif

• ./configure
• sudo make install # Goes to /user/bin/pqiv

Building:

• git clone https://github.com/xforever1313/PiPictureFrame.git
• git submodule update --init SethCS
• cd PiPictureFrame
• nuget restore ./PiPictureFrame.sln
• xbuild /p:Configuration=Release ./PiPictureFrame.sln
• cd PiPictureFrame.Cli/bin/Release
• mono PiPictureFrame.Cli.exe # Should fail, as the user is not set up to use port 80. However, a config will appear in /home/pi/.config/PiPictureFrame

Configuration:

Configuration is located in C:\UserName\AppData\PiPictureFrame on Windows. On linux, this is in /home/userName/.config/PiPictureFrame.

<?xml version="1.0" encoding="UTF-8"?>
<pictureframeconfig>
  <sleeptime hour="-1" minute="-1" />
  <awaketime hour="-1" minute="-1" />
  <photodirectory>D:\Seth\Pictures</photodirectory>
  <refreshinterval>3600</refreshinterval>
  <photochangeinterval>10</photochangeinterval>
  <shutdowncommand>shutdown -Ph now</shutdowncommand>
  <rebootcommand>reboot</rebootcommand>
  <exittodesktopcommand>echo "Exiting"</exittodesktopcommand>
  <httpport>10013</httpport>
  <brightness>75</brightness>
</pictureframeconfig>

• sleeptime: Time to turn off the screen. Hour is 0-23, minute is 0-59. -1 on both is NEVER turn off the screen.
• awaketime: Time to turn on the screen. Hour is 0-23, minute is 0-59. -1 on both is NEVER turn on the screen.
• photodirectory: Where we search for photos (recursively).
• refreshinterval: How often to check for new photos in SECONDS. Ignored in this release.
• photochangeinterval: How often to change the photo on the screen in SECONDS.
• httpport: Port to run the HTTP server on.
• brightness: Scale from 1-100 on how bright the screen should be.

Auto Login:

This is how to auto-login to the desktop so the user can start the frame:

Edit /etc/lightdm/lightdm.conf

This should be there by default, but if its not:

"autologin-user=userName"

Security:

Change Root Password:

• sudo su
• passwd
• change password
• exit

Force key login for SSH:

Edit /etc/ssh/sshd_config

PermitRootLogin no
PasswordAuthentication no
Port XXXX  # Change port if desired