The OrangeCrab is based on Lattice's EPC5 FPGA and features two memory configurations: ECP5 25F/128Mbit and ECP5 85F/521Mbit. The FPGA is compatible with open-source programming tools and is ideal for experimenting with RISC-V and other softcore SoCs. The variety of integrated peripherals in the OrangeCrab makes it suitable for many real-world applications.

Users can use CircuitPython on the OrangeCrab, which is capable of hosting the interpreter. Although not yet implemented, developers can work on the FPGA with HDL synthesized in the gateware. For those more familiar with SoC-level development platforms, the ECP5 can run a RISC-V softcore. The LiteX project also offers developers greater flexibility and capabilities.

Key features of the OrangeCrab r0.2 FPGA development board include:
• Processor: A Lattice Semiconductor EPC5 FPGA with 24K LUTs, a 10-pin FPGA programming connector, and a MicroSD socket with direct high-speed USB connection to the FPGA.
• Memory: Memory options include up to 8 Gbit (x16) of DDR3 system memory and 128 or 512 Mbit of QSPI Flash memory. A microSD card slot expands the development board's storage potential.
• Form Factor: The OrangeCrab follows Adafruit's slim Feather board specification, measuring only 22.86 mm x 50.8 mm. It fits in your pocket and serves as a complete prototyping platform for custom SoC designs.
• Connectivity: The open-source USB boot manager allows users to connect to the FPGA's native USB interface to load code and access memories via MSD. The standard 2 x 5 1.27 mm connector is an excellent addition for those who want to develop applications at the USB layer.
• Power: High-efficiency DC/DC converter for mains power, battery charger chip (100 mA), LiPo battery connector (PH type), and 48 MHz oscillator.

Romain Soreau, Head of SBC at Farnell, comments: “The OrangeCrab, an ultra-compact, comprehensive, and versatile open-source FPGA development board, is an excellent addition to our extensive catalog of development boards and single-board computer evaluation kits. The OrangeCrab is a versatile and cleverly designed board that can be used for a variety of professional or hobbyist applications for those interested in FPGA hardware development.”.

Good Stuff Department is an open-source hardware product development company focused on microcontroller and FPGA development boards. The company's founder, Greg S. Davill, was the mastermind behind the successful ArticKoala and ButterStick boards.

Farnell offers a complete range of embedded computers and boards for education and makers, with a variety of accessories available for fast delivery. Customers can take advantage of 24/7 technical support, free access to valuable resources on the Farnell website, and the community of engineers and makers at element14.

The OrangeCrab r0.2 open source FPGA development board is available from Farnell in Europe.