PinHub is a searchable, source-backed pinout catalog for development boards,
SBCs, and microcontroller modules — Raspberry Pi, Arduino, ESP32, STM32 Nucleo,
Teensy, Adafruit, Seeed, SparkFun, BeagleBone, Jetson, and more. Every board
links to official documentation, and most carry an interactive pin map.
Live: pinhub-mauve.vercel.app
Features
| Route | What it does |
|---|
/ | Catalog: search boards and pins (pico sda, rpi5 spi, esp32 gpio27), filter, favorite, and open board detail |
/pinout/[id] | Interactive pin map with scrollable touch controls, label zoom, role filters, net probing, and Markdown/CSV export |
/boards/[id] | Specs, wiring warnings, and sources |
/pinout/[id]/opengraph-image, /boards/[id]/opengraph-image | 1200×630 link-preview image of the board's pins, colored by role |
/compare | Discover boards with labeled filters, then compare up to four side by side; differences first; shareable URL |
/planner | Review board cautions, mark the pins you use, and fit I2C, SPI, UART, PWM, and ADC into what's left |
/link | Wire two boards over UART or I2C, with board cautions and logic-level mismatch warnings |
/prices | Dated USD prices and stock for curated listings, refreshed hourly |
/collections | Shareable board sets from your local library |
Favorites and collections stay in local storage; nothing requires an account.
JSON API
Read-only, no key required. The board and pin routes reject query strings
(400) and mutating methods (405).
curl https://pinhub-mauve.vercel.app/api/boards # index
curl https://pinhub-mauve.vercel.app/api/boards/raspberry-pi-5 # full record
curl https://pinhub-mauve.vercel.app/api/pins # pin index
curl https://pinhub-mauve.vercel.app/api/prices # price snapshot
CLI
npm install -g @dheerajsom/pinhub
ph rpi5
See cli/README.md.
Development
Next.js App Router, TypeScript, Tailwind CSS v4. Board data is static in
src/lib/boards.ts.
npm install
npm run dev
npm run lint && npm run typecheck && npm test && npm run build
npm run test:e2e # Playwright, port 3100
The build also validates board visuals and source links. Prices are optional
locally: without Blob credentials the app uses the bundled dated snapshot (see
docs/board-prices.md).
Documentation
Accuracy and license
PinHub is a reference, not a substitute for vendor documentation. Board
revisions change pin assignments; check the linked sources before wiring
anything you can't replace, and
open an issue if an entry
disagrees with your hardware.
MIT License. Catalog data is compiled from vendor documentation,
which remains the vendors' property. PinHub is not affiliated with any vendor.
