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MCU for a USB gadget

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A small board that enumerates without a second chip. Native USB device, enough endpoints for HID or CDC, and a bootloader story you will actually use.

Starting part numbers

From the local map. These are examples, not the live result list.

  • ATMEGA32U4-AU

    Microchip

    Classic HID/CDC MCU; still the right answer sometimes.

  • RP2040

    Raspberry Pi

    USB device, dual core, easy to bring up.

Category map

Nexar / Octopart

Microcontrollers

id: (blank) · best-effort

DigiKey

Microcontrollers

id: (blank) · best-effort

Category ids are blank until someone verifies them. Live lookup searches the example MPNs and these labels instead.

Keywords USBdeviceHIDCDCRP2040ATmega32U4

Live parts

On-demand from Nexar and/or DigiKey. Nothing here is a catalog Byuse owns. Specs appear only if the API returned them.

No distributor key is set. Browsing still works. To see live parts, add one of these pairs to .env.local and restart the dev server:

  • NEXAR_CLIENT_ID
  • NEXAR_CLIENT_SECRET
  • DIGIKEY_CLIENT_ID
  • DIGIKEY_CLIENT_SECRET

Nexar needs NEXAR_CLIENT_ID and NEXAR_CLIENT_SECRET. DigiKey needs DIGIKEY_CLIENT_ID and DIGIKEY_CLIENT_SECRET.