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activeunknownintermediateconfidence 3/5

OrangeCrab

Compact open-source Lattice ECP5 board commonly used with LiteX, USB and open-source ECP5 flows.

Short verdict: open-source flow. Critical characteristics must be checked against sources before purchase or external wiring.

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Feature set differs across OrangeCrab revisions; verify exact revision.
MPN
OrangeCrab
Status
active
Availability
unknown
Price
not source-backed
Device type
FPGA
Chip
LFE5U-25F/85F (ECP5)
Recommendation
open-source flow
Verified
2026-04-29

Interfaces, connectors and memory

Interfaces

USB x1, MicroSD x1

Connectors

Expansion edge connector x1

Memory

DDR3 requires revision check

Toolchains

Yosys + nextpnr + Project Trellis

community; open-source flow

Documentation, schematics, pinout, constraints

OrangeCrab hardwarehardware_repo

Where to get help

OrangeCrab GitHub organization

Sources

https://orangecrab-fpga.github.io/orangecrab-hardware/https://github.com/orangecrab-fpga/orangecrab-hardware