by Radiona.org / Zagreb Makerspace

A powerful, open hardware ECP5 FPGA dev board

Aug 31, 2020

Almost There

More happy news from Intergalaktik!!! As of 28th August, our first batch—which includes 788 ULX3S boards and 200 PMOD sets—is on its way to Mouser for fulfillment. It will cover all crowdfunding orders and all current pre-orders. This update also describes some issues we've been having with our pick-and-place machine (but don't worry, it's a story with a happy ending). Read the full update.

Aug 19, 2020

All Boxed Up!

Just a quick update to let you know that all crowdfunded ULX3S boards (and all PMODs) were packed into ten boxes, last week, and are currently waiting on Mouser to initiate the pick up. This shipment will also include all current pre-orders and enough stock to cover expected sales while we are waiting on the second manufacturing run. Everything should be on its way to Mouser early next week, and we expect crowdfunding orders to ship out to backers by the middle of September. Pre-orders will follow shortly after that. Read the full update.

Jul 25, 2020

Testing Was Successful & Assembly is Finished!

Some great news: testing of the first panel went well. All of the boards we tested passed, so we gave Končar the green light to finish production. And they did! This update includes pictures, videos, and an update on PMOD manufacturing. Read the full update.

Jul 10, 2020

Parts, PCB Assembly, PMODs, and the New Intergalaktik Offices

Production starts in two weeks! This update includes photos and videos of ULX3S parts, panelized PCBs, and PMODs, as well as equipment that will soon live in the new Intergalaktik offices! As soon as manage to get some windows put in... Read the full update.

Jun 15, 2020

PCBs Ready, Parts on the Way, Assembly Delayed

Time flies! June has arrived and so have 500 bare ULX3S PCBs at Končar. Fabrication is complete, and parts are rolling in, but supply-chain issues have delayed assembly. This update also includes pictures of the bare ULX3S production boards! Read the full update.

Jun 04, 2020

Progress in May

We've had a lot going on since our last update. This time around, we'll discuss our new company, our manufacturing arrangements, our sourcing of components, and our progress toward PMOD production. Read the full update.

Apr 14, 2020

Closing Out the Campaign

We are into last few hours of our campaign, and we wanted to take this opportunity to thank you all for supporting ULX3S. We couldn't have done it without you. Now let's look toward a better and a more sustainable future! Read the full update.

Apr 10, 2020

Now With Support for SynthoWheel Retro Sound!

We have reconstructed a vintage organ in the digital interface of ULX3S. With this simulation of a very famous vintage organ's tonewheel, our lab member EMARD created a polyphonic synthesizer with parameters that are configurable through a MIDI interface. Read the full update.

Apr 03, 2020

Introducing the ULX3S PMOD Set!

Now that we are in the final third of our campaign, we would like to offer up a few PMOD expansion boards for ULX3S so you can enjoy this FPGA board even more! The ULX3S PMOD Set includes three PMODs: a dual-USB board, a digital video board, and an OV7670 camera connector. Read on for more details! Read the full update.

Mar 30, 2020

Ask Me Anything (AMA) on Crowd Supply's Discord

The ULX3S team will be hanging out on Crowd Supply's Discord this Wednesday, April 1st, at 1pm Pacific. Come on by and ask that question, offer that feedback, or make that suggestion. We'll see you there! Read the full update.

Mar 27, 2020

Taking DOS Gaming to the Next Level!

In our first video update, we would like to share with you the possibilities for DOS-based retro gaming on ULX3S. Read the full update.

Mar 17, 2020

Thanking You & Announcing Our First Stretch Goal

We reached over 200% of our crowdfunding goal in just three days, and we would like to say thank you for the support! We are also announcing a stretch goal. Help us hit it, and receive a free set of headers: two for PMODs and one for a an on-board display. Read the full update.

Mar 14, 2020

Ready for Crowdfunding

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. Read the full update.

$103,036 raised

of $15,000 goal

686% Funded! Order Below

Product Choices



A set of three PMODs for ULX3X: one dual-USB board with support for IR send and receive, one Digital Video board for HDMI input or as a second HDMI 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

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