planned_features is a view of where the keybrd project is headed.

Top priority

MCP23S18 I/O expander with Serial Peripheral Interface (SPI)

Med priority

Add matrix-to-layout mapping array (to decouple matrix from layout)

Low priority

Update tutorials:

• Currently tutorial sketches are obsolete and won’t compile
• Change tutorial sketches from teensy 2.0 and PCA9655E-D IOE to Teensy LC and MCP23018 IOE

Add more tutorials:

• tutorial_5_LEDs.md
• tutorial_6_mapping_matrix_to_layout.md
• tutorial_9_active_high.md
• add schematics to tutorials