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Add support showSolderMask option for CircuitPreview and capacitive touch sensor #312

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Add support showSolderMask option for CircuitPreview and capacitive touch sensor #312

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714e0a1
Add doc for capacitive touch sensor with soldermask
nailoo Nov 5, 2025
46c3a41
format
nailoo Nov 5, 2025
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4 changes: 2 additions & 2 deletions bun.lock
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Original file line number Diff line number Diff line change
Expand Up @@ -21,7 +21,7 @@
"@docusaurus/module-type-aliases": "3.8.1",
"@docusaurus/tsconfig": "3.8.1",
"@docusaurus/types": "3.8.1",
"@tscircuit/create-snippet-url": "^0.0.10",
"@tscircuit/create-snippet-url": "^0.0.13",
"@tscircuit/footprinter": "^0.0.135",
"@tscircuit/math-utils": "^0.0.18",
"@twind/core": "^1.1.3",
Expand Down Expand Up @@ -619,7 +619,7 @@

"@trysound/sax": ["@trysound/[email protected]", "", {}, "sha512-L7z9BgrNEcYyUYtF+HaEfiS5ebkh9jXqbszz7pC0hRBPaatV0XjSD3+eHrpqFemQfgwiFF0QPIarnIihIDn7OA=="],

"@tscircuit/create-snippet-url": ["@tscircuit/[email protected].10", "", { "dependencies": { "fflate": "^0.8.2" }, "peerDependencies": { "typescript": "^5.0.0" } }, "sha512-5sFzUsrRIPisnRWjGFvVORGRJTrxLB4FXp1ZFSrr/5RXz/OJTL900YA34IRYulVypR5rU7krEnTs9ed5gpIBWA=="],
"@tscircuit/create-snippet-url": ["@tscircuit/[email protected].13", "", { "dependencies": { "fflate": "^0.8.2" }, "peerDependencies": { "typescript": "^5.0.0" } }, "sha512-F1BUIzGFR4h3pPKa3UqshYEXeMuv7uCbBG4JSz3FJByGTRwcbcgHAq9GPQSEibBujVWIbY/5gf1kcVO5GyJvmA=="],

"@tscircuit/footprinter": ["@tscircuit/[email protected]", "", { "dependencies": { "@tscircuit/mm": "^0.0.8", "zod": "^3.23.8" }, "peerDependencies": { "circuit-json": "*" } }, "sha512-+8MasMGTNQL/NINnlWk2v6zw/NDerfdIBG3uqhrTr0r7VOHh4lK1ymTkQR7IeoypkxTIHYGB9wHbOt39XAF3mg=="],

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62 changes: 62 additions & 0 deletions docs/footprints/smtpad.mdx
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Expand Up @@ -119,4 +119,66 @@ Here’s an example of using a **polygon smtpad**
</board>
)
`}
/>

## Example: Capacitive Touch Sensor


<CircuitPreview
defaultView="pcb"
browser3dView={false}
showSolderMask={true}
code={`
export default () => (
<board width="20mm" height="20mm">
<chip
name="U1"
footprint={
<footprint>
<smtpad
shape="polygon"
layer="top"
portHints={["pin1"]}
coveredWithSolderMask={true}
points={[
{ x: -4.5, y: 2 },
{ x: -2.2, y: 2 },
{ x: -0.4, y: 0 },
{ x: -2.2, y: -2 },
{ x: -4.5, y: -2 },
]}
/>
<smtpad
shape="polygon"
layer="top"
portHints={["pin2"]}
coveredWithSolderMask={true}
points={[
{ x: -1.8, y: 2 },
{ x: 1.8, y: 2 },
{ x: 3.6, y: 0 },
{ x: 1.8, y: -2 },
{ x: -1.8, y: -2 },
{ x: 0, y: 0 },
]}
/>
<smtpad
shape="polygon"
layer="top"
portHints={["pin3"]}
coveredWithSolderMask={true}
points={[
{ x: 2.2, y: 2 },
{ x: 6, y: 2 },
{ x: 6, y: -2 },
{ x: 2.2, y: -2 },
{ x: 4, y: 0 },
]}
/>
</footprint>
}
/>
</board>
)
`}
/>
2 changes: 1 addition & 1 deletion package.json
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Expand Up @@ -35,7 +35,7 @@
"@docusaurus/module-type-aliases": "3.8.1",
"@docusaurus/tsconfig": "3.8.1",
"@docusaurus/types": "3.8.1",
"@tscircuit/create-snippet-url": "^0.0.10",
"@tscircuit/create-snippet-url": "^0.0.13",
"@tscircuit/footprinter": "^0.0.135",
"@tscircuit/math-utils": "^0.0.18",
"@twind/core": "^1.1.3",
Expand Down
10 changes: 9 additions & 1 deletion src/components/CircuitPreview.tsx
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Expand Up @@ -88,6 +88,7 @@ export default function CircuitPreview({
projectBaseUrl = "https://docs.tscircuit.com/",
leftView,
rightView,
showSolderMask,
}: {
code?: string
showTabs?: boolean
Expand All @@ -106,6 +107,7 @@ export default function CircuitPreview({
leftView?: "code" | "pcb" | "schematic" | "3d" | "runframe" | "pinout"
rightView?: "code" | "pcb" | "schematic" | "3d" | "runframe" | "pinout"
projectBaseUrl?: string
showSolderMask?: boolean
}) {
const { isDarkTheme } = useColorMode()
const windowSize = useWindowSize()
Expand Down Expand Up @@ -141,7 +143,13 @@ export default function CircuitPreview({
const fsMapOrCode = hasMultipleFiles
? fsMap || code
: code || Object.values(fsMap ?? {})[0]
const pcbUrl = useMemo(() => createSvgUrl(fsMapOrCode, "pcb"), [fsMapOrCode])
const pcbUrl = useMemo(() => {
if (showSolderMask) {
return createSvgUrl(fsMapOrCode, "pcb", { showSolderMask: true })
}
return createSvgUrl(fsMapOrCode, "pcb")
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@seveibar seveibar Nov 5, 2025

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You can simplify this by allowing showSolderMask to be undefined

}, [fsMapOrCode, showSolderMask])

const schUrl = useMemo(
() => createSvgUrl(fsMapOrCode, "schematic"),
[fsMapOrCode],
Expand Down