Graustahl Storage Device

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Description

Graustahl is a desktop storage controller with sockets for up to 4 MMOD modules. When paired with FRAM MMODs, it can be used to build a long-term storage array.

Also see Ebenstahl.

Features

  • USB-C port with USB-MSC interface
  • 4 MMOD sockets can be mapped to multiple logical units
  • RP2040 MCU 32-bit MCU (Dual Cortex M0+, 264KB SRAM)
  • 4MB (32Mbit) EEPROM for firmware
    • Lifespan: 100 years @ +40C
    • Data retention: 10 years after 500K write cycles
  • RGB LED
  • Includes 3D-printed enclosure
  • Board dimensions: 100mm x 50mm

Resources

  • Schematics, firmware, documentation and 3D-printable case will be made available on GitHub
  • MMOD specifications and PCB layouts are available on GitHub