THE SPLIT BENCH

THE PICK BOARD MAPPER ◀ ALL BOARDS
BASICS

HOW IT ALWAYS WORKS: pick a tool from the LEFT rail first, then tap the board. The tool you’re holding decides what a tap does.

    FRONT · EDGE PINS 1–30
    BACK · EDGE PINS 31–60
    CLEAR THE WHOLE BOARD?
    Wipes every dot, wire, part and image edit for THIS board.
    UNDO can still bring it back.
    WHAT IS THIS CHIP?
    CHIP COLOUR
    DRAW
    PARTS TOOL
    SYMBOLS
    IMAGE
    BOARD COLOUR
    ZOOM
    PHOTO DIM
    MARKS DIM
    LINE
    DOT
    EDIT
    OPTIONS

    LIVE CONNECTION TREE −

    One row per finger on the edge connector — what it is, and where it gets to. Hover a row and its whole chain lights up on the boards: every point, both faces, and the copper between them. A run carries on through its parts, so a resistor or diode in the middle of it is part of the path, not the end of it.

    BOARD READOUT
    PARTS ON THIS BOARD +

    The known parts for this board — trace a shape with DRAW PART (glob tops welcome: what's under them is unknown, so just trace the blob), then tap a name, then the shape. The board builds up piece by piece.

      EDGE PINS — WHAT EACH ONE DOES +

      Lay the gold pins and every finger appears here with its job — click one to set which net it carries.

        EVERY WIRE, ONE BY ONE +

          Nothing traced yet. Click a photo to drop dot 1, then click two dots in a row to wire them — on the same board or across the two.

          Layout nods to the boardview neighbours on GitHub: OpenBoardView · InteractiveHtmlBom.
          Famicom cartridge edge — 60 pins.
          Label side: pins 1–30, left to right. Back side: pins 31–60.
          Ground sits on pins 1 and 16; +5V comes in on pin 30 — find those with the multimeter first and the rest of the map follows.
          Pin 36 is disputed — the wiki gives both GND and CPU D7. Measured in-circuit on the Goldev example board it read ~145Ω drifting: a path through a chip rather than copper, so it settles nothing. Follow the finger on the photo instead.
          Source: NESdev wiki — Cartridge connector
          WHAT IS THIS POINT?
          WHAT DOES THIS POUR CARRY?
          TREE + PARTS
          THE BEGINNER'S GUIDE — every tool, in plain words