User guide

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imagemode # (default is 0)
The imagemode command specifies whether the image is scaled to the display.
• imagemode 0: Centers the image without scaling (may result in cropping if the image is
larger than the current videomode resolution).
• imagemode 1: Scales the image to fit the display. The whole image is displayed as large as
possible with correct aspect ratio.
• imagemode 2: Scales the image to fill the display while maintaining aspect ratio.
• imagemode 3: Scales the image to fill the screen without maintaining aspect ratio.
slideinterval # (default is 3)
Set the number of seconds between slides. The number must be an integer. For example:
slideinterval 3 inserts a 3-second pause between slides.
transition # (default is 0)
Set the transition between images. Transition commands include:
• 0: Changes images immediately with no transition.
• 1 to 4: Wipes the image from top, bottom, left, and right.
• 5 to 8: Explodes the image from the center, top left, top right, bottom left, and bottom right.
• 10 to 11: Divides the image into vertical and horizontal venetian blinds.
• 12 to 13: Comb the image both vertically and horizontally.
• 14: Fades the image to the background color.
• 15: Fades between the current image and the new image.
• 16 to 19: Slides the image from top, bottom, left, and right.
lighton # or lightoff #
Use the lighton and lightoff commands to set or clear one of the GPIO outputs. The number can
be any integer between 17 and 22. For example: lighton 17 sets LED 0 on the button board.