Keyboard

• Pyra's Keyboard Lighted by one of the Prototype Boards.

• Comparison between Pyra's and Pandora's Keymat

Keyboard matrix and button assignment

• fixed by hardware: buttons and maeanders
• connected to specific gpios and matrix lines
• describes specific hardware revision

Software assignment by Linux Kernel

• describes KEY_code for specific software revision (here letux-4.5.0 and later)
• assumes specific hardware revision (here 5.0/5.1)
• default Device Tree pyra-mainboard.dtsi
• can be changed by modified device tree

TCA8418 Matrix