seveibar/nine-key-keyboard

index.tsx

PCB

Schematic

import { SmdDiode } from "@tsci/seveibar.SmdDiode"
import { Key } from "@tsci/seveibar.Key"
import { Pico2 } from "@tsci/seveibar.pico2"

const rowToMicroPin = {
  0: "GP0",
  1: "GP1",
  2: "GP10",
}
const colToMicroPin = {
  0: "GP19",
  1: "GP17",
  2: "GP5",
}

export default () => (
  <board width="100mm" height="60mm" outlineOffsetY={-4} schTraceAutoLabelEnabled>
    <Pico2 name="U1" pcbX={-30} />
    {grid({ sizeX: 3, sizeY: 3, pitch: 19.05, offset: { x: 20, y: 0 } }).map(
      ({ x, y, row, col }, index) => {
        const schOffX = 5 + x/6
        const schOffY = -y / 8
        return (
          <group key={`Kgroup${index}`}>
            <Key pcbX={x} pcbY={y} schX={schOffX} schY={schOffY + 0.5} name={`K${index + 1}`} />
            <SmdDiode
              pcbX={x}
              pcbY={y - 13}
              schX={schOffX}
              schY={schOffY}
              layer="bottom"
              name={`D${index + 1}`}
            />
            <trace from={`.D${index + 1} .pin1`} to={`.K${index + 1} .pin1`} />
            <trace
              from={`.D${index + 1} .pin2`}
              to={`.U1 .${rowToMicroPin[row]}`}
            />
            <trace
              from={`.K${index + 1} .pin2`}
              to={`.U1 .${colToMicroPin[col]}`}
            />
          </group>
        )
      }
    )}
  </board>
)

function grid(opts: {
  sizeX: number
  sizeY: number
  pitch: number
  offset?: { x: number; y: number }
}): Array<{ x: number; y: number; row: number; col: number }> {
  const { sizeX, sizeY, pitch, offset = { x: 0, y: 0 } } = opts
  const points: Array<{ x: number; y: number; row: number; col: number }> = []
  const startX = (-(sizeX - 1) * pitch) / 2
  const startY = (-(sizeY - 1) * pitch) / 2
  for (let row = 0; row < sizeY; row++) {
    for (let col = 0; col < sizeX; col++) {
      points.push({
        x: startX + col * pitch + offset.x,
        y: startY + row * pitch + offset.y,
        row,
        col,
      })
    }
  }
  return points
}