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Description
OrangeCrab (Discontinued)The OrangeCrab is a feather form factor electronics development board. For the Lattice ECP5 FPGA. The board follows the slim feather board specification from Adafruit. The FPGA is compatible with all open source toolchains and is perfect for experimenting with RISC V cores. There aren't many FPGA boards available that make use of the ECP5, but here are some distinct features that set this board apart: Small Compact size (Take it anywhere!) Direct USB
The OrangeCrab is a feather form factor electronics development board. For the Lattice ECP5 FPGA. The board follows the slim feather board specification from Adafruit. The FPGA is compatible with all open source toolchains and is perfect for experimenting with RISC-V cores. There aren't many FPGA boards available that make use of the ECP5, but here are some distinct features that set this board apart:
- Small Compact size (Take it anywhere!)
- Direct USB connection to the FPGA (Operate as a DFU, MSC, CDC, or composite device!)
- On-board DDR3 Memory (1Gbit!)
- Pre-loaded DFU bootloader (No external programmer required!)
- It's Orange!
The current hardware version that we are shipping is V0.2.1.
Hardware Overview
| Lattice ECP5-25F FPGA | Lattice ECP5-85F FPGA |
|
|
- DDR3L Memory
- 128 Mbytes (1Gbit)
- 64M x16
- 1.35V low voltage operation
- USB-C connection
- Full-speed (12Mbit) USB with a direct connection to the FPGA
- Non-volatile Storage
- 128Mbit QSPI FLASH Memory
- Bootloader (First 4Mbits)
- User Bitstream
- User storage (Firmware/MSC backend/etc)
- QSPI compatible
- MicroSD socket
- 4bit SD interface (CK, CMD, DAT0-3)
- 128Mbit QSPI FLASH Memory
- Power supply
- High efficiency DCDC for main supplies
- Battery charger (100mA), with a charge indicator LED
- LiPo battery connector (PH type)
- 48MHz onboard oscillator
- User I/O
- 1x Button
- 1x RGB LED
- 20x I/O on 0.1" headers
- Analog System
- Analog Mux
- SAR ADC, external RC / input comparator of FPGA
- Digital bypass
- Internal channels for supply monitor
- Battery voltage sensing
- Feather Format Board
- Dimensions: 22.86mm x 50.8mm (0.9" x 2.0").
Compact Size
Unlike traditional FPGA development boards, this board is small enough to carry in your pocket and function as a prototyping ground for custom SoC designs.
If you are not familiar with the feather format, you might be surprised by the size of this board. The Feather format has dimensions of: 22.86 x 50.8mm (0.9" x 2.0")
For reference this is the board pictured next to some standard ISO/IEC 7810 ID-1 cards.
Example Projects
- OrangeCrab-examples - still a work in progress
- DFU Bootloader - The DFU bootloader that ships with the OrangeCrab.
- Linux-On-Litex - Running Linux on the Orange Crab
Community
If you have questions or want to chat with the community, you can find them on our Discord server and the OrangeCrab forum category.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 7 reviews
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Product Reviews
★★★★★ 4
Durable and beautiful
Size: 41 Inch Extra Long, Color: Rustic Brown
This is a good quality shelf. The price is good and it was easy to install. It looks great. It is durable and a little heavy so we made sure to hang it into studs on the wall.
Over all I'm pleased with this purchase.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 10, 2025
★★★★★ 5
LOVE IT!!!
Size: 41 Inch Extra Long, Color: White Faux Marble
Easy to put together, very durable and quality materials. I recommend two people like the directions say if you're going to mount it because it's heavy but I had no trouble moving it to is location but I did not mount it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 13, 2026
★★★★★ 5
Love it!
Size: 41 Inch Extra Long, Color: Rustic Brown
Took 3 grown men to mount but it’s been such an awesome addition to our kitchen. My wife’s coffee knook is excellent now
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 17, 2026
★★★★★ 5
Color me impressed.
Size: 41 Inch Extra Long, Color: Rustic Brown, Size: 41 Inch Extra Long, Color: Rustic Brown
My husband and I were looking for a shelf to replace the one over our coffee station. We just needed more room for travel mugs and other assorted coffee items. Most of our kitchen is done in the wood and black metal tones so when we spotted this, we were excited. We placed it in the amazon cart and purchased.
Shipping took a little while but it was packaged well and nothing was damaged. It came with everything needed to build and hang the shelf including the dry wall anchors. My husband was able to put it together fairly quickly but hanging it was a two person job. The shelf isn't SUPER heavy... but someone needs to hold it while the other person levels it and mark where to mount the anchors. Once it was up, it was sturdy and looks great!
We're very happy with this product. It is perfect for what we wanted to do :)
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Reviewed in the United States on February 23, 2023
★★★★★ 3
Looks decent but is slightly under engineered
Size: 41 Inch Extra Long, Color: White Faux Marble, Size: 41 Inch Extra Long, Color: White Faux Marble
Five stars for packaging, quality of materials and instructions. It's a really good looking product out of the box. No scratches or defects in workmanship. Material fit and finish is very good. If you've ever assembled anything from Ikea, the hardware will seem familiar. The problems that led to me giving it 3 stars occur in the engineering. All of the weight transfer to the center with just four corner anchor points creates a sag. If you drop a 4' level across the top after installing, it's a noticeable 1/8" dip in the middle as gravity pulls on the unsupported center. If you're one of those people that notices an out of level picture on a wall from fifty paces, this is going to be a problem for you. Being that I knew it would only get worse with time and eventually make me insane, I installed a very small L bracket in the middle under the bottom shelf, pushing the entire thing up until the deflection was gone. I also tossed the anchors that came with it as those are for concrete/block walls and used metal EZ anchors that are rated for drywall. If you use the included anchors in 1/2“ drywall, there's a good chance they'll pull out. Toggle bolts would also be a good alternative. Another small detail that's missing is the lack of a plug or cover for the four exposed cams making up the vertical center support. Depending on your viewing angle and how much stuff you'll store will determine if these are visible or not. Including a simple white decal would have been reasonable. I used some white, stick-on melamine screw covers I had lying around to try and hide the cam locks better. Lastly, I wish this were made in plain white. While the faux marble somewhat matches our dining table, The veining is too pronounced. Plain white would have been better.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 26, 2025
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