Projekt je sufinancirala Europska unija iz Europskog fonda za regionalni razvoj – Zajedno do fondova EU


Naziv projekta: Razvojna ispitivanja EEZ BB3 modularnog programabilnog višekanalnog izvora napajanja za potvrdu električnih karakteristika i usklađenosti s sigurnosnim normama.


Opis projekta i cilj: EEZ BB3 je modularni koncept potpuno otvorenog dizajna (tzv. open source i open hardware) koji nudi naprednu funkcionalnost koja se može naći u testnim i mjernim uređajima vodećih proizvođača, ali po prihvatljivijoj cijeni ciljanoj skupini, a to su hobisti, đaci i studenti, obrazovne ustanove, mikro i mala poduzeća s ograničenim budžetom koji su zainteresirani za lako nadogradiva i modularna rješenja s atraktivnom programskom podrškom kao što je slučaj s EEZ BB3.

Predmet ovog projekta jesu razvojna ispitivanja osnovnih EEZ BB3 modula (AUX-PS, MCU i BP3C) kao i prvih perifernim modula (DCP405, DCP405B i DCM220) što u cjelini predstavlja programabilni višekanalni izvor napajanja.

Ispitivanja koja se žele provesti trebala bi potvrditi željene naponske i strujne karakteristike, razinu preciznosti u postavljanju i mjerenju izlaznih parametra, sigurnosne aspekte i ukazati na moguće nedostatke kada je u pitanju elektromagnetska kompatibilnost. Za vrijeme ispitivanja pokušati će se otkloniti pronađeni nedostaci, ali isto tako napraviti i određena poboljšanja na koje bi nam stručni tim Končar Instituta mogao ukazati.


Ukupna vrijednost projekta: 39.075,00 kn (od čega EU sufinancira 27.352,50 kn)

Razdoblje provedbe projekta: Siječanj – Ožujak, 2020.

Kontakt osoba: Denis Kotlar




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EEZ is committed to ensuring that your privacy is protected. Should we ask you to provide certain information by which you can be identified when using this website, then you can be assured that it will only be used in accordance with this privacy statement.

EEZ may change this policy from time to time by updating this page. You should check this page from time to time to ensure that you are happy with any changes. This policy is effective from 2018-07-04.

Our contact data

Envox d.o.o.

Fallerovo šetalište 22c/I



VAT No. HR 06928107888

Executives / authorized representatives: Denis Kotlar

Data protection officer

To contact our data protection officer please send an email using Contact form.

What we collect

We may collect the following information:

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See also:

Privacy Policy


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(work in progress, your contribution is highly appreciated)


The OpenScience project is dedicated to writing and releasing free and Open Source scientific software.


PLOS Collections: Open Source Toolkit: Hardware – PLOS Collections aggregate and curate related content from PLOS journals and the PLOS Blogs Network to provide structured access to papers of interest in the PLOS corpus and demonstrate innovative approaches to the assessment, organization and reuse of research, data and commentary.


Open-source Lab – a gallery and associated sub-pages are an extension of the book the Open Source Lab, which is about how to make scientific equipment following open source principles.


MyOpenLab (Spanish) is a free platform for “Intelligent" blocks (components, also called elements) that can be interlinked. With the help of flow chart blocks, it is possible in MyOpenLab to "program" visually and you do not necessarily have to be a programmer.


Open Science Framework – Labs and teams across the globe use the Open Science Framework to open their projects up to the scientific community.


Open Source Imaging Initiative (OSI²) – represents a new approach to the development of medical imaging devices, aiming to make the health-care benefits of magnetic resonance imaging devices (MRI) accessible to many more people around the globe.


HardwareX is an open access journal established to promote free and open source designing, building and customizing of scientific infrastructure (hardware). HardwareX aims to recognize researchers for the time and effort in developing scientific infrastructure while providing end-users with sufficient information to replicate and validate the advances presented. HardwareX is open to input from all scientific, technological and medical disciplines.


SoftwareX aims to acknowledge the impact of software on today's research practice, and on new scientific discoveries in almost all research domains. SoftwareX also aims to stress the importance of the software developers who are, in part, responsible for this impact.


The Martin Fleischmann Memorial Project – a group dedicated to researching Low Energy Nuclear Reactions (often referred to as LENR) while sharing all procedures, data, and results openly online. We rely on comments from online contributors to aid us in developing our experiments and contemplating the results.


Easy ɸ – a new electronics platform aimed at physicists. It was originally developed for experiments in quantum optics, but is also perfectly adapted for other applications in physics or biology. In particular for time correlated measurements, where high speed electronics is needed. It is an open standard platform based on open hardware and open software. Unlike for commercial systems, you can fully control the platform and adapt it to your needs.


Journal of Open Hardware publishes papers and reviews on technical, legal, economic, and sociocultural aspects of open hardware design, fabrication, and distribution. Its primary goal is to promote research and development of professional, academic, and community-based open hardware projects.


Instruments is an international, peer-reviewed open access journal that provides an advanced forum for studies related to the design and applications of instruments, apparatuses, and experimental techniques in disciplinary and interdisciplinary research.


FOSSASIA / PSLab – our vision with PSLab (Pocket Science Lab) is to miniaturize laboratories and make scientific instruments accessible for everyone.


ScopeFun – Open Source Instrumentation




EEZ #BenchBox3 crowdfunding campaign is finished.

Thanks to all backers for support!

Available for pre-orders on Crowd Supply





2019-12-24: The EEZ BB3 is now certified open hardware project

2019-12-16: We received Shuttleworth foundation flash grant

2019-12-14: The BB3-ULX3S FPGA project is HAMAG-BICRO PoC8 finalist

2019-09-23: The EEZ H24005 became the first certified open hardware project in Croatia

2019-06-19: Meet the EEZ Bench Box 3 (BB3)

2019-02-24: Instruction guide for IEXT creation is published


Welcome to EEZ, the Envox Experimental Zone. This site is dedicated to the various electronic/hardware and software projects solely based on the open-source (OSI) and open-hardware philosophy. In line with mentioned orientation we are trying in the Zone to use as much as possible open-source tools and technologies (i.e. Electron, Arduino, LAMP, OpenOffice, Joomla, PartKeepr, FreeCAD, gerbv, Kdenlive, etc.).

All presented projects are created in a way to be suitable for DIY that do not necessary limited us to think only about basic and simple solutions.

Please note that our main competence is software development and some of projects listed here were started to become a reference design for our software that could be with some modification successfully used with many other hardware designs.

The first project a programmable bench power supply is an example of fully-featured solution backed up with software that usually comes with middle and high range commercial devices.


We are open for your comments, suggestions and also we invite you to join our team to assist in building better hardware, software, web content, documentation, adding support for new languages, etc.




Visit us and join on github


Join discussion on EEVblog forum


Subscribe to our YouTube channel




Explore all EEZ H24005 firmware HMI and SCPI features using the Web simulator (please note that it cannot work with Firefox in private mode)!



… or download desktop application here.


Follow the progress of the EEZ Bench Box 3 firmware HMI development by using the Web simulator (please note that it cannot work with Firefox in private mode)!