Embedded systems and electronics design for demanding industrial projects.
My name is Grzegorz Pawlicki. Under the GEKAR brand, I help companies design, debug and modernise complete electronic devices and control systems.
For more than 20 years, I have independently delivered projects for the railway (EN 50155) and industrial sectors, taking responsibility for the entire technical solution — from system architecture and electronics design to embedded software, EMC compliance and customer deployment.
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ELECTRONICS DESIGN
EMBEDDED SYSTEMSI design: complete electronic devices: schematics, PCB, firmware, prototypes and bring-up.
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Communication: CAN/CANopen, RS485, UART, Ethernet, Wi-Fi/Bluetooth.
Firmware: STM32, bare-metal, FreeRTOS, C, integration with Linux/SBC systems.
EMC/CE: design decisions made with real industrial deployment in mind. -
SMALL MACHINE AUTOMATION
PLC, HMI, DRIVESI design: control systems for special-purpose machines and industrial devices.
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Scope: PLC, HMI, drives and industrial communication.
Embedded: integration of automation with embedded electronics and firmware.
Drives: stepper motor based applications as an alternative to expensive servo systems.
Advantage: complete approach — from electronics to machine commissioning.
I work best on projects where experience matters
The highest value I bring is in projects where electronics, firmware, communication, mechanics and real operating conditions meet. I have designed devices for demanding environments, where reliability, EMC robustness and predictable long-term behaviour are essential.
You work directly with an engineer who understands the complete product development path, not only a single isolated part of it.
Typical areas of cooperation:
- new electronic devices from concept to working product
- debugging difficult hardware, firmware or communication problems
- modernisation of existing devices and control systems
- industrial communication: CAN, RS485, Ethernet
- preparation for EMC, CE and low-volume production
How cooperation usually works
- Analysis – discussion of the technical problem and requirements
- Concept – solution architecture and initial risk assessment
- Design – hardware, firmware or automation system development
- Prototype – bring-up, measurements and functional testing
- Deployment support – EMC, CE, production documentation and further revisions
Who I work with
- Manufacturers developing new electronic products or custom devices
- Industrial companies modernizing machines and control systems
- Engineering teams that need additional expertise in hardware or embedded systems
What I deliver
- System architecture – definition of device concept and technical approach
- Hardware design – schematics, PCB layout and component selection
- Embedded firmware – STM32, communication protocols, real-time systems
- Integration – bringing hardware and software together into a working device
- Prototyping and testing – validation, debugging and preparation for production
- I take responsibility for delivering working, reliable electronic devices — not just individual parts of the project