Require small media player application and operating system to work on the Raspberry PI device.
Image files will be held on a USB memory stick in one port on the Raspberry PI
When inactive the screen output should be off, NOT just displaying a blank image.
Player will activate the screen and play an image when one of the I/O's on the Raspberry PI is made active (either momentary closure or taken high/low)
Image will remain on screen for a pre-defined time (set in the config file) after activation
After activation and the image has displayed for the pre-defined time, the screen will again go off.
If there are multiple images on the USB stick the player will cycle through the images in turn after each activation.
activation 1 = image 1
activation 2= image 2
Choice of operating system should mean that the device will have a very fast boot time after power on.
Device will boot up and get the application running waiting for activation via the I/O.
Ability to control the display output via the config file so it can operate in any one of the four ways:
2. Portrait Flipped
4. Landscape Flipped