Seeeduino Arch from Seeed Studio is an mbed enabled development board which combines some advantages of mbed and Arduino. Arch is based on NXP LPC11U24 with Arduino form factor and Grove connectors. Building a prototype is easy with lots of Shield and Grove modules.

Firmware issue!

If you are seeing this page by opening MBED.HTM of Arch Max, please update your firmware by reffering here.

For more information, see : Seeeduino Arch homepage


  • Arduino form factor with Grove connectors
    • a large number of grove modules
  • NXP LPC11U24 MCU
    • Low power ARM Cortex-M0 Core
    • 48MHz, 32KB Flash, 8KB RAM, 4KB EEPROM
    • USB Device, 2xSPI, UART, I2C
    • Drag-n-drop programming on windows #1#
  • mbed enabled
    • online development tools
    • easy to use C/C++ SDK
    • lots of published libraries, projects



It's the pinout of Arch V1.1. If you look for Arch V1.0, click this link.

Download New Program

The button of Arch is specially designed to provide two functions:

  • Quick press to reset
  • Long press to enter USB ISP mode, a CRP DISABLD disk will pop up.
    • On Windows, replace firmware.bin with your program binary file
    • On Linux/Mac, use command: dd if={program.bin} of={firmware.bin}

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