Finally an FPGA friend for your feather and feather wings!

The IcyBlue Feather is a Lattice ICE5LP4K based FPGA development board which brings the low power capabilities of the ICE40 FPGA from Lattice Semiconductor to the easy and prolific feather format pioneered by Adafruit.

The ICE5LP4K provides 3520 LUTs in a small 48-QFN package in which 39 of the pins are GPIO. GPIO can be configured in 1.2V, 2.5V, and 3.3V logic levels providing a flexible IO interface for your project. This feather provides all three voltage levels with 150mA sink current available for 1.2V core power and IO, 250mA of current for 2.5V IO, and up to 500mA of sink current (less overhead for the onboard FT232HQ).

Two of the IO are used to drive user LEDs, while the dedicated RGB LED pins are used to drive a bright 0404 sized RGB LED. 22 additional GPIO are broken out to the feather header pins allowing access to the hardware SPI and I2C blocks available on the ICE5LP4k.

What can you do?

FPGAs provide a wide range of flexibility in terms of what you can make. The synthesis of hardware description languages (HDLs) allow you to describe many different kinds of control logic. Simple things like shift registers can be implemented in just a few minutes and loaded to provide additional and flexible functionality to your project.

More complex projects like RISC-V CPUs are also viable with many examples available for ICE40 devices. Lattice also provides IP cores that can be loaded onto the FPGA in a matter of seconds through both proprietary tools like Diamond Programmer, and open source tools like the ft232h flashing utility provided by Adafruit.

What makes it special?

This is the first feather that uses the ICE5LP4K FPGA from Lattice Semi. It's dedicated IO for RGB and pin voltage flexibility makes this an easy choice for getting started with FPGA and for expanding your expertise if you're a seasoned professional.

Design Files, Example HDL, and Documentation Are Coming Soon!