by Radiona.org / Zagreb Makerspace

A powerful, open hardware ECP5 FPGA dev board

View all updates Mar 14, 2020

Ready for Crowdfunding

by Goran Mahovlić

After many months of preparation, the team here at Radiona is ready to launch our crowdfunding campaign for the ULX3S FPGA with ESP32. Hackaday described ULX3S as creating "the Year of the Hacker FPGA," and we are finally ready to make that prediction a reality. Many people have worked to prepare this board – and the sample code that highlights its potential – for distribution to makers and hobbyists worldwide. We believe this is one of the best developer boards ever designed, as it incorporates a vast array of features and capabilities into one relatively small and reasonably priced package.

ULX3S has been actively developed for over four years and is the result of a collaboration between Radiona – Zagreb Makerspace and FER (the Faculty of Electrical Engineering and Computing at the University of Zagreb in Croatia). Students, hobbyists, developers, and engineers from all over the world have contributed some amazing examples of what ULX3S can do.

We invite you to have a look! And, if you like what you see, help us bring ULX3S to life by backing our campaign. Thank you for your support!!

$139,986 raised

of $15,000 goal

933% Funded! Order Below

Product Choices


Expansion Boards

A set of three expansion boards for ULX3S: one dual-USB board with support for IR send and receive, one Digital Video board for GPDI input or as a second GPDI output, and one OV7670 camera connector.


ULX3S with ECP5 12F

ULX3S development board with a Lattice ECP5 (LFE5U-12F-6BG381C) FPGA. 12k LUTs and a whole lot more.


ULX3S with ECP5 85F

ULX3S development board with a Lattice ECP5 (LFE5U-85F-6BG381C) FPGA. 84k LUTs and a whole lot more.


Radiona.org / Zagreb Makerspace

Radiona.org / Zagreb Makerspace works to enhance the visibility of makers' open source culture and sustainable production, as well as to help connect all possible fields of Science, Technology, Engineering, Art, and Mathematics (STEAM).


Marko Zec

Goran Mahovlić

Deborah Hustic

Damir Prizmić

Marko Jovanović

Boris Vidošević

Marvin Sinister

Igor Brkić

Mato Ilijic

Zvonimir Domazet



Components and Hardware Sourcing


Electrical Engineering

See Also

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