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CVRLCDCAVRIT includes the ability to display a custom character on one of the digits on the Butterfly's LCD using the "pattern" primative. The pattern primative is used in the form "pattern <character> <digit>" where <character> is a 16-bit value constructed using the below information and <digit> is a number between 1 and 6 representing where the character is to be drawn on the LCD. In the image below each segment has been assigned a value from A to P (excluding I and O): Each character is represented by a 16-bit integer using the following table:
As an example, the character 'A' in the above figure would be represented by the bitstring:
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