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Colors identify wire functions, not the insulation you need to use. Click a wire or component to focus it. Matching numbers link the drawing to the connections below.

Follow a connection

WHEN YOU NEED THE BIG PICTURE

The complete reference

The focused views above use the same wiring. These sheets show everything together.

Complete keyboard drawingOpen full-size drawing ↗Complete black and white keyboard wiring reference
Enlarged perfboard and all 14 chip pinsOpen full-size perfboard ↗Perfboard top-view reference and level shifter pin table

Download the full reference PDF ↓   Original perfboard explorer ↗