Doppelmüsli USB Pmod™ Compatible Module


Out of stock

SKU: LD-DOPPELMUSLI Categories: , , ,


Connect a keyboard, mouse, flash drive or other USB device to your FPGA development board or any system with a 12-pin Pmod™ compatible socket.

Doppelmüsli has two modes:

  • Pmod™ compatible USB device bridge + USB host bridge
  • Pmod™ compatible Dual USB host bridge

Doppelmüsli provides a Pmod™ compatible interface to a Raspberry Pi RP2040 MCU. In host mode the 5V USB VBUS power is supplied by a step-up boost converter. The second USB host port is made possible thanks to the Pico-PIO-USB project.

Note: Doppelmüsli must be powered by the Pmod™ connector while Müsli supports a stand-alone USB-powered device mode.


  • Raspberry Pi RP2040 MCU
    • Dual-core 32-bit Cortex-M0+
    • 264K SRAM
    • USB device/host controller
  • 2Mb (256KB) QSPI NOR Flash
  • Stacked dual USB Type-A socket
  • 12-pin Pmod™ compatible interface (SPI, UART and/or GPIO)
  • 48mm x 20.32mm board dimensions


  • No external 5V power source required
  • Firmware can be programmed via SWD header or USB in device mode


  • Example firmware, documentation and schematics will be made available on GitHub