# Xirkit

> Every part on Xirkit is a structured record: pin-level electrical data traced to the datasheet page, sourced prices, CAD and compatibility — readable by engineers, search engines and AI agents.

Xirkit is a parts marketplace built on structured data. Each development board, chip and motor is a record: board pins routed to chip pads with per-pin electrical limits (VIH, VIL, VOH, VOL, IOH, IOL, 5 V tolerance), ratings, dimensions and CAD, and sourced supplier prices. Every value cites the document, page and table it came from; unknown values are null with a reason, never guessed.

## How to use this data

- Every product page has a Markdown twin at `<page>/data.md` and the full JSON record at `<page>/data.json`.
- Query the live catalog with tools from the MCP server: https://www.xirkit.io/mcp
- Full dump of every record as Markdown: https://www.xirkit.io/llms-full.txt
- Sitemap: https://www.xirkit.io/sitemap.xml

## Categories

- [Development boards](https://www.xirkit.io/products/category/dev-boards): compare every development board as structured data
- [Motors](https://www.xirkit.io/products/category/motors): compare every motor as structured data

## Development boards

- [Adafruit ESP32-S3 Feather (8 MB flash, no PSRAM)](https://www.xirkit.io/products/adafruit-esp32-s3-feather-8-mb-flash-no-psram-a873/data.md): Adafruit Industries, ESP32-S3FN8
- [Adafruit Feather RP2040](https://www.xirkit.io/products/adafruit-feather-rp2040-802e/data.md): Adafruit Industries, RP2040
- [Adafruit QT Py RP2040](https://www.xirkit.io/products/adafruit-qt-py-rp2040-bdcf/data.md): Adafruit Industries, RP2040
- [Arduino Mega 2560 Rev3](https://www.xirkit.io/products/arduino-mega-2560-rev3-e196/data.md): Arduino S.r.l., ATmega2560-16AU
- [Arduino Nano](https://www.xirkit.io/products/arduino-nano-b854/data.md): Arduino S.r.l., ATmega328P
- [Arduino Nano 33 BLE Sense Rev2](https://www.xirkit.io/products/arduino-nano-33-ble-sense-rev2-ae8c/data.md): Arduino S.r.l., nRF52840-QIAA
- [Arduino Nano ESP32](https://www.xirkit.io/products/arduino-nano-esp32-d5fc/data.md): Arduino S.r.l., ESP32-S3R8
- [Arduino Nano Every](https://www.xirkit.io/products/arduino-nano-every-ff46/data.md): Arduino SA, ATmega4809-AU
- [Arduino Nano RP2040 Connect](https://www.xirkit.io/products/arduino-nano-rp2040-connect-e1b2/data.md): Arduino S.r.l., RP2040
- [Arduino UNO R3](https://www.xirkit.io/products/arduino-uno-r3-9ffd/data.md): Arduino S.r.l, ATmega328P
- [Arduino UNO R4 Minima](https://www.xirkit.io/products/arduino-uno-r4-minima-4540/data.md): Arduino S.r.l., R7FA4M1AB3CFP
- [Arduino UNO R4 WiFi](https://www.xirkit.io/products/arduino-uno-r4-wifi-d7ab/data.md): Arduino SRL, R7FA4M1AB3CFP
- [ESP32-DevKitC V4](https://www.xirkit.io/products/espressif-esp32-devkitc-v4-01c3/data.md): Espressif Systems, ESP32-D0WD-V
- [ESP32-S3-DevKitC-1 (N8R8)](https://www.xirkit.io/products/espressif-esp32-s3-devkitc-1-n8r8-e95f/data.md): Espressif Systems, ESP32-S3R8
- [Luckfox Pico Ultra W](https://www.xirkit.io/products/luckfox-pico-ultra-w-db02/data.md): Luckfox, RV1106G3
- [Raspberry Pi Pico](https://www.xirkit.io/products/raspberry-pi-pico-c8fe/data.md): Raspberry Pi Ltd, RP2040
- [Raspberry Pi Pico 2](https://www.xirkit.io/products/raspberry-pi-pico-2-1cde/data.md): Raspberry Pi Ltd, RP2350A
- [Raspberry Pi Pico 2 W](https://www.xirkit.io/products/raspberry-pi-pico-2-w-b3bc/data.md): Raspberry Pi Ltd, RP2350A
- [Raspberry Pi Pico W](https://www.xirkit.io/products/raspberry-pi-pico-w-8b30/data.md): Raspberry Pi Ltd, RP2040
- [Seeed Studio XIAO ESP32-S3](https://www.xirkit.io/products/seeed-studio-xiao-esp32-s3-f8f5/data.md): Seeed Studio, ESP32-S3R8
- [Seeed Studio XIAO ESP32C3](https://www.xirkit.io/products/seeed-studio-xiao-esp32c3-99be/data.md): Seeed Studio, ESP32-C3FH4
- [Seeed Studio XIAO nRF52840 Sense](https://www.xirkit.io/products/seeed-studio-xiao-nrf52840-sense-a973/data.md): Seeed Studio, nRF52840-QIAA
- [Seeed Studio XIAO RP2040](https://www.xirkit.io/products/seeed-studio-xiao-rp2040-53de/data.md): Seeed Studio, RP2040
- [STM32 Nucleo-64 NUCLEO-F446RE (MB1136)](https://www.xirkit.io/products/stmicroelectronics-stm32-nucleo-64-nucleo-f446re-mb1136-2179/data.md): STMicroelectronics, STM32F446RET6
- [Teensy 4.0](https://www.xirkit.io/products/pjrc-teensy-4-0-8ee0/data.md): PJRC, MIMXRT1062DVL6B
- [Teensy 4.1](https://www.xirkit.io/products/pjrc-teensy-4-1-988c/data.md): PJRC, MIMXRT1062DVJ6B

## Motors

- [NEMA 17 bipolar stepper motor](https://www.xirkit.io/products/nema-17-bipolar-stepper-motor-63e5/data.md): 
- [Pololu 20.4:1 25D HP 12V Gearmotor](https://www.xirkit.io/products/pololu-20-4-1-25d-hp-12v-gearmotor-4597/data.md): Pololu, brushed_dc_gearmotor
- [Pololu 20.4:1 25D LP 12V Gearmotor](https://www.xirkit.io/products/pololu-20-4-1-25d-lp-12v-gearmotor-ccf2/data.md): Pololu, brushed_dc_gearmotor
- [Tower Pro MG996R high-torque metal-gear servo motor](https://www.xirkit.io/products/tower-pro-mg996r-high-torque-metal-gear-servo-motor-2a43/data.md): Tower Pro

## Development boards by chip

- [RP2040 development boards](https://www.xirkit.io/products/category/dev-boards/rp2040): 6 boards (Raspberry Pi Ltd chip)
- [ESP32-S3R8 development boards](https://www.xirkit.io/products/category/dev-boards/esp32-s3r8): 3 boards (Espressif Systems chip)
- [ATmega328P development boards](https://www.xirkit.io/products/category/dev-boards/atmega328p): 2 boards (Microchip Technology chip)
- [nRF52840-QIAA development boards](https://www.xirkit.io/products/category/dev-boards/nrf52840-qiaa): 2 boards (Nordic Semiconductor chip)
- [R7FA4M1AB3CFP development boards](https://www.xirkit.io/products/category/dev-boards/r7fa4m1ab3cfp): 2 boards (Renesas Electronics chip)
- [RP2350A development boards](https://www.xirkit.io/products/category/dev-boards/rp2350a): 2 boards (Raspberry Pi Ltd chip)
- [ATmega2560-16AU development boards](https://www.xirkit.io/products/category/dev-boards/atmega2560-16au): 1 board (Microchip (Atmel) chip)
- [ATmega4809-AU development boards](https://www.xirkit.io/products/category/dev-boards/atmega4809-au): 1 board (Microchip Technology chip)
- [ESP32-C3FH4 development boards](https://www.xirkit.io/products/category/dev-boards/esp32-c3fh4): 1 board (Espressif Systems chip)
- [ESP32-D0WD-V development boards](https://www.xirkit.io/products/category/dev-boards/esp32-d0wd-v): 1 board (Espressif Systems chip)
- [ESP32-S3FN8 development boards](https://www.xirkit.io/products/category/dev-boards/esp32-s3fn8): 1 board (Espressif Systems chip)
- [MIMXRT1062DVJ6B development boards](https://www.xirkit.io/products/category/dev-boards/mimxrt1062dvj6b): 1 board (NXP Semiconductors chip)
- [MIMXRT1062DVL6B development boards](https://www.xirkit.io/products/category/dev-boards/mimxrt1062dvl6b): 1 board (NXP Semiconductors chip)
- [RV1106G3 development boards](https://www.xirkit.io/products/category/dev-boards/rv1106g3): 1 board (Rockchip Electronics Co., Ltd. chip)
- [STM32F446RET6 development boards](https://www.xirkit.io/products/category/dev-boards/stm32f446ret6): 1 board (STMicroelectronics chip)

## Optional

- [MCP server for Claude, Cursor and other agents](https://www.xirkit.io/mcp)
- [Case study: a robot BOM checked part by part](https://www.xirkit.io/roboBOM)