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Description
OrangeCrabThe 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 23 reviews
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Product Reviews
★★★★★ 1
💔My dogs are throwing up and diarrhea BLOOD!
Size: Whole Ears (Pack of 22)
Salmonella
I have 5 dogs. On Thursday, July 17, I received a package of pig ears from this company. This was not the first time my dogs had pig ears but it was the first time I purchased from you. My dogs were each given a pig ear. Within 24 hours, all of my dogs were throwing up and diarrhea. By Saturday, all 5 of my dogs were throwing up straight blood and diarrhea straight blood!!! Puddles! It was horrifying and looked like a crime scene in my house!!! My husband and I were hysterical! My dogs were so weak and lethargic, and sick! 4 of my dogs are under 10lbs and were in the emergency vet getting an IV and fighting for life, as well as my 10 year old American Staff rescue who has a weak immune system because she fought heartworms a year and a half ago before we adopted her. It is currently Monday morning and our nightmare hasn't ended! My husband and I, both work, and have literally not slept since! 24 hours a day we are cleaning up after dogs - vomit, diarrhea, and tons of it! From each! Last night my smallest dachshund threw up 16 times in 15 minutes - on my bed, lap, floor, everywhere! Blood! We are torn- are lives are shattered! In the blink of an eye all because we thought we were spoiling our dogs and giving them a treat! Now they are fighting for life! We have spent thousands at the emergency vet for all of them! We still don't know if they are going to make it! We are so devastated and feel so helpless watching them! We try to console them but how do you console all 5 at once and what do you do when they don't understand & they are so weak and miserable and blood is coming out of their bodies faster than you can clean it! I think it is important for people to be aware! After researching, I found out that this company had a salmonella outbreak across 45 states in 2019.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 25, 2025
★★★★★ 5
Good value
Size: Half-cut (Pack of 50)
Pups love them
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 19, 2026
★★★★★ 3
Dogs love them but they are small.
Size: Half-cut (Pack of 50), Size: Half-cut (Pack of 50)
They are good quality but probably shouldn’t be marketed toward medium size dogs. A good portion of them are very small which is disappointing.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 17, 2026
★★★★★ 5
Bouncy, not hard, and good value.
Style: Fetch Balls (Pack of 10), Size: 2.5 inch
Great balls for the ball launcher and not rockhard like some of the solid rubber balls. These have great bounce, and because of the two holes, they make a fun whistling noise as they fly through the air. My dogs love them and they are a good value.
By the way, if you throw them too hard, they will go through chain-link and no climb fence because they squish a bit!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 16, 2026
★★★★★ 5
Excellent dog balls — safe design and very durable
Style: Fetch Balls (Pack of 3), Size: 2.5 inch
These fetch balls from Amazon Basics are fantastic, and my dog absolutely loves them. One of the biggest reasons I prefer these over other brands is the hole that runs through the center of the ball. This is a very important safety feature: if a dog were to accidentally get the ball stuck in the back of the throat, the hole allows air to pass through. That small detail could literally make a life-saving difference.
Aside from the safety benefit, they bounce well, are easy to clean, and hold up to a lot of playtime. They’re firm but not rock-hard, and my dog goes crazy for them. Great value, great quality, and a thoughtful design.
Highly recommended for dog owners who want a safer alternative to standard solid rubber balls.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 1, 2025
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