Websites
A website where visitors can easily find your services, work and contact details. I create content and layouts for mobile and desktop.
Business websites · Portfolio · DesignDEVELOPMENT · DEVICES · INSTALLATIONS
From code to
a smarter home.
I build websites and applications, program microcontrollers and develop smart devices. I connect the technology you need at home and at work.
Communication in Croatian, German and English.
YOUR BRAND
A good idea.
A great impression.
A great impression.
FROM IDEA TO WEBSITE
Websites and applications ✳ Firmware and devices ✳ Networks and installations
01 / SERVICES
One point of contact.
Many technical solutions.
Programming, device development and hands-on work on site. I provide on-site services in Zadar and the surrounding area; we agree on the scope to suit your needs.
Online shops
An online shop with clear product listings and a straightforward buying process. We plan the catalogue, ordering, payment and delivery around your business.
Products · Orders · PaymentApplications
Applications for business tasks or device control. I develop the interface and connect it to the data and systems you use.
Web applications · Data · IntegrationsMicrocontroller programming and firmware development
I develop software for microcontrollers and smart devices — for sensor control, communication and integration with applications.
Microcontrollers · Sensors · FirmwareSmart home and automation
Configuration of smart devices, blinds and weather stations. I connect your equipment and set up controls to suit how you use it.
Smart devices · Blinds · AutomationCameras, networks and electrical installations
Camera installation, improved Wi-Fi coverage and network configuration. We agree on the scope of electrical work for each specific job.
Video surveillance · Wi-Fi · Installations02 / MY WORK
Cronics.
Electronics and software together.
A website, smart home application, firmware and my own Smart Hub. A project that brings software and device development together.
03 / ABOUT ME
Ilija Opačak.
From electronics to software.
My experience began at HEIDENHAIN in Germany. I trained there as an electronics technician for devices and systems, then worked in electronics and application development.
I like to understand the whole system: how a circuit works, how a device communicates and how people use it. Through Kodara I develop websites, online shops, applications and smart devices, and also work on networks and installations. Cronics is my own project combining these fields.
Work at HEIDENHAIN
- Development of user and web applications and extensions to diagnostic software.
- Automated testing and commissioning of test systems for measuring devices.
- Work on electronic circuits and the concept of an incremental signal generator.
- Support for applications in production and collaboration using Git, JIRA and Confluence.
Programming and technical skills
I mainly work with Python, C++ and Lua. I also use C.
Web applications, microcontroller firmware, sensor integration, test automation, electronic circuits and smart device configuration. My practical experience also includes networks, Wi-Fi, cameras, blinds and weather stations.
VOCATIONAL QUALIFICATIONElectronics technician for devices and systemsIHK München und Oberbayern · 2021 · final exam: 94 points, “sehr gut” (very good)
UNIVERSITY STUDIESElectrical and Information EngineeringIU University
CURRENT TRAININGMaster craftsman examination for electrical installationIn progress
ADDITIONAL TRAININGOccupational safety trainingKontrol biro · 2026.
COMMUNICATIONCroatian, German and EnglishFluent Croatian and German · very good English
KNOWLEDGE / GOOGLE CERTIFICATES
Additional skills.
Applied in everyday work.
Two completed programmes: automation with Python and practical use of AI tools.
IT Automation with Python
Python, Git and GitHub, troubleshooting, configuration management and IT task automation.
Verify certificateAI Essentials
Using AI tools, productivity, prompt writing and responsible use of artificial intelligence.
Verify certificate04 / HOW I WORK
From discussion
to solution.
First we agree on the problem to solve, then I develop the solution and test it in use.
- 01
Project discussion
We agree on what you need, where you will use it, and the scope, timeline and price.
- 02
Design and development
I build the agreed solution and share progress so you can give feedback.
- 03
Testing and handover
I test the agreed features, show you how to use the solution, and arrange handover or publication.
05 / QUESTIONS
Before we
get started.
What should I prepare for a website?
A business description, your services, contact details, and your logo and photos if available. We can plan the content structure together.
Can I use an existing domain?
Yes. We can connect your existing domain to the new website. If you change domains, we also plan redirects for existing links.
How long does it take and what does it cost?
That depends on the number of pages, content and features. We agree on the timeline and price after defining the project scope.
Will the website work on mobile?
We adapt the design to smaller and larger screens and check readability and usability on mobile.
Can you connect existing smart devices?
I first check the models and communication methods. Integration depends on the specific equipment and the features you want to use.
Can I commission a custom device?
Yes. We can plan firmware development, sensor integration and a control application. We define development and testing around the device's intended use.
06 / YOUR NEXT STEP
Have an idea?
Let's start with a conversation.
Tell me what you need to build, connect or solve. We will agree on the next step.
Let’s talk about your project
Croatia
+385 99 872 8855Germany
+49 157 33690981 [email protected]On-site work: Zadar and surrounding area · Croatian, German and English
Send an inquiry
Describe what you need, then choose email or WhatsApp to send your inquiry.