PolymorphicBlocks/examples/BasicKeyboard/BasicKeyboard.svgpcb.js at bd82c97e873bccdca48d6eff7bc55c5e5aa16a0f · BerkeleyHCI/PolymorphicBlocks · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
const board = new PCB();

const sw = SwitchMatrix_2_3_sw(pt(0.039, 0.039))
// mcu
const U1 = board.add(XIAO_RP2040_SMD, {
  translate: pt(1.466, 0.410), rotate: 0,
  id: 'U1'
})

board.setNetlist([
  {name: "mcu.gpio.0_0", pads: [["U1", "7"], ["SW1", "2"], ["SW2", "2"], ["SW3", "2"]]},
  {name: "mcu.gpio.0_1", pads: [["U1", "8"], ["SW4", "2"], ["SW5", "2"], ["SW6", "2"]]},
  {name: "mcu.gpio.1_0", pads: [["U1", "9"], ["D1", "2"], ["D4", "2"]]},
  {name: "mcu.gpio.1_1", pads: [["U1", "11"], ["D2", "2"], ["D5", "2"]]},
  {name: "mcu.gpio.1_2", pads: [["U1", "10"], ["D3", "2"], ["D6", "2"]]},
  {name: "mcu.gnd", pads: [["U1", "13"]]},
  {name: "mcu.pwr_out", pads: [["U1", "12"]]},
  {name: "mcu.vusb_out", pads: [["U1", "14"]]},
  {name: "sw.d[0,0].cathode", pads: [["SW1", "1"], ["D1", "1"]]},
  {name: "sw.d[0,1].cathode", pads: [["SW2", "1"], ["D2", "1"]]},
  {name: "sw.d[0,2].cathode", pads: [["SW3", "1"], ["D3", "1"]]},
  {name: "sw.d[1,0].cathode", pads: [["SW4", "1"], ["D4", "1"]]},
  {name: "sw.d[1,1].cathode", pads: [["SW5", "1"], ["D5", "1"]]},
  {name: "sw.d[1,2].cathode", pads: [["SW6", "1"], ["D6", "1"]]}
])

const limit0 = pt(-0.07874015748031496, -0.07874015748031496);
const limit1 = pt(1.85748031496063, 2.1181102362204722);
const xMin = Math.min(limit0[0], limit1[0]);
const xMax = Math.max(limit0[0], limit1[0]);
const yMin = Math.min(limit0[1], limit1[1]);
const yMax = Math.max(limit0[1], limit1[1]);

const filletRadius = 0.1;
const outline = path(
  [(xMin+xMax/2), yMax],
  ["fillet", filletRadius, [xMax, yMax]],
  ["fillet", filletRadius, [xMax, yMin]],
  ["fillet", filletRadius, [xMin, yMin]],
  ["fillet", filletRadius, [xMin, yMax]],
  [(xMin+xMax/2), yMax],
);
board.addShape("outline", outline);

renderPCB({
  pcb: board,
  layerColors: {
    "F.Paste": "#000000ff",
    "F.Mask": "#000000ff",
    "B.Mask": "#000000ff",
    "componentLabels": "#00e5e5e5",
    "outline": "#002d00ff",
    "padLabels": "#ffff99e5",
    "B.Cu": "#ef4e4eff",
    "F.Cu": "#ff8c00cc",
  },
  limits: {
    x: [xMin, xMax],
    y: [yMin, yMax]
  },
  background: "#00000000",
  mmPerUnit: 25.4
})

function SwitchMatrix_2_3_sw(xy, colSpacing=0.5, rowSpacing=0.5, diodeOffset=[0.25, 0]) {
  // Circuit generator params
  const ncols = 2
  const nrows = 3

  // Global params
  const traceSize = 0.015
  const viaTemplate = via(0.02, 0.035)

  // Return object
  const obj = {
    footprints: {},
    pts: {}
  }

  // Actual generator code
  allColWirePoints = []
  for (let yIndex=0; yIndex < nrows; yIndex++) {
    colWirePoints = []
    rowDiodeVias = []

    for (let xIndex=0; xIndex < ncols; xIndex++) {
      index = yIndex * ncols + xIndex + 1

      buttonPos = [xy[0] + colSpacing * xIndex, xy[1] + rowSpacing * yIndex]
      obj.footprints[`SW${1 + xIndex * nrows + yIndex}`] = button = board.add(
        SW_Hotswap_Kailh_MX,
        {
          translate: buttonPos, rotate: 0,
          id: `SW${1 + xIndex * nrows + yIndex}`
        })

      diodePos = [buttonPos[0] + diodeOffset[0], buttonPos[1] + diodeOffset[1]]
      obj[`D${1 + xIndex * nrows + yIndex}`] = diode = board.add(
        D_SOD_323,
        {
          translate: diodePos, rotate: 90,
          id: `D${1 + xIndex * nrows + yIndex}`
        })

      // create stub wire for button -> column common line
      colWirePoint = [buttonPos[0], button.padY("2")]
      board.wire([colWirePoint, button.pad("2")], traceSize, "F.Cu")
      colWirePoints.push(colWirePoint)

      // create wire for button -> diode
      board.wire([button.pad("1"), diode.pad("1")], traceSize, "F.Cu")
      diodeViaPos = [diode.padX("2"), buttonPos[1] + rowSpacing / 2]
      diodeVia = board.add(viaTemplate, {translate: diodeViaPos})
      board.wire([diode.pad("2"), diodeVia.pos], traceSize)

      if (rowDiodeVias.length > 0) {
        board.wire([rowDiodeVias[rowDiodeVias.length - 1].pos, diodeVia.pos], traceSize, "B.Cu")
      }
      rowDiodeVias.push(diodeVia)
    }
    allColWirePoints.push(colWirePoints)
  }

  // Inter-row wiring
  for (let xIndex=0; xIndex < allColWirePoints[0].length; xIndex++) {
    board.wire([
      allColWirePoints[0][xIndex],
      allColWirePoints[allColWirePoints.length - 1][xIndex]
    ], traceSize, "F.Cu")
  }

  return obj
}