Dmytro Popadiuk
Private message
Offer work
Ukraine
available for hire
Rating
CV
Hello 🙂
I am an electronic engineer with more than 15 years of experience.
I will be happy to cooperate.
My services include:
🎛 Analog and digital electronics
- Creating circuits for unique devices.
- Accurate calculation and modeling using LTSpice.
🔧 PCB Design
- Designing in KiCAD, EasyEDA, Altium Designer.
- Creating complex multilayer boards for modern devices.
- Preparing all necessary files for production (GERBER, BOM)
- Optimizing the cost of production (selection of analogs, board panelization, V-Cut Panelization)
⚡ Prototyping and manufacturing
- 3-D visualization of both the printed circuit board and the device design.
- Fast and efficient cycle from design to prototype.
- Preparing working prototypes to test your idea.
- Support for ordering in production.
📡 Network technologies and algorithms
- Developing solutions for IoT, network integration, cloud services.
- Creating and tuning algorithms for system efficiency.
💻 Programming in C/CPP and PyQT5
- Effective programming for STM8 microcontrollers.
- GUI development using PyQT5.
Why choose me:
🌟 Extensive practical experience in the field of electronics development (telecommunications, energy, metrology).
🏭 Deep immersion in the subject area for a clearer understanding of options for solving business problems.
📈 I work with the latest technologies to achieve the best results.
💼 I support the entire development cycle - from the beginning of the idea to the launch of the product.
Platforms and tools that I use:
- KiCAD, EasyEDA, Altium Designer
- IAR Embedded Workbench, STVD, keil uVision
- LTSpice for analog circuit modeling
🔗 With me you get electronics that meet your expectations, optimized and ready for a successful launch.
Write if you want to discuss a project!
Skills and abilities
Design & art
Administration
Translation
Writing
Portfolio
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500 USD LED strip control board with RS485
Mechanical Engineering & Instrument Making
The photo shows the stages of prototype creation.
1. Creating an electrical circuit considering all customer wishes
2. Routing the printed circuit board traces and selecting the positions of radio components
3. Visual inspection and optimization of the final appearance. Agreeing the results with the customer
… 4. Final appearance of the board after manufacturing
The current printed circuit board is designed for controlling LED strips using the RS485 interface. It is developed in KiCAD and created with high efficiency and ease of use in mind.
Main features:
Microcontroller: STM32 – the heart of the system, providing reliable control.
RS485 interface: galvanic isolation of the control interface from the power section.
Power supply: separate for the power section, microprocessor, and control interface.
Drivers: with additional cooling options for managing LED strips.
Measurement: ability for channel monitoring of power consumption.
Includes:
Compact design and the ability to customize for specific project needs.
Supports up to 5 LED channels with individual control and consumption monitoring.
Tools used:
Circuit and PCB design: KiCAD.
This board is ideal for use in domestic or commercial lighting systems.
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500 USD Sound effects pedal board
Mechanical Engineering & Instrument Making
The device receives an analog audio signal, digitizes it, modifies the signal according to an algorithm, after which digital-to-analog conversion and signal amplification occur. The control elements are not shown in the photo - they are located on the casing and connect to the corresponding sockets on the board.
The board has one audio input and two outputs, which have high voltage protection circuits. Control is done using buttons (4 pcs. + pedal), encoders (3 pcs.). Information display is implemented through a monochrome display. Power can be supplied from an external source or from a built-in battery - there is a switch, and protections against reverse polarity and high input voltage are implemented. In case of inactivity, the board can switch to power-saving mode to conserve battery - the circuit allows turning off the power to all elements except the microprocessor. For debugging, two UART and JTAG ports are provided.
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500 USD Equipment tester board
Mechanical Engineering & Instrument Making
The image shows one of the boards of the metrological equipment calibration device. Operating principle: relays switch and collect the corresponding calibration circuit. For each of the circuits, the corresponding load is connected: reference capacitor, reference resistor, reference transformer. After that, measurements of parameters are taken and compared with the standards.
Reviews and compliments on completed projects 11
23 May
34 USD
Development of a printed circuit board project in KiCad based on a sample (photo + work description)
Everything is very professional and fast!
1 May
56 USD
ESP32 based project
This is not the first time I am working with Dmytro, everything is at a high level. In the future, I will reach out again.
6 April
16 USD
Reworking the board (relay module)
Great job completing the small task. I immediately understood the context. I quickly solved the problem.
31 March
113 USD
Development of the audio device board (part 3)
Well done work that meets expectations.
25 February
92 USD
Development of the audio device board (part 2)
Well done task. Dmytro responds promptly and qualitatively to questions/proposals.
23 February
226 USD
Development of audio device board
Good execution and support
6 December 2025
113 USD
Refinement of the board
Responsible performer. Completed faster than expected deadlines.
21 October 2025
226 USD
Development of audio device hardware
project at the testing stage
25 June 2025
23 USD
ESP32 based project
This is the second time I am working with Dmytro. Like the first project, everything was done quickly and with quality!
25 April 2025
16 USD
Simple board with one connector
Satisfied with the first completed project) Thank you
13 November 2024
50 USD
Esp32
Dmytro quickly got to work, was always in touch, and completed the order with high quality. I recommend Dmytro as a performer!
Activity
| Projects underway 1 | Budget | Added | Deadlines | Proposal | |
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Creation of PCB according to the provided schematic, routing of the board
100 USD
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| Latest proposals 10 | Budget | Added | Deadlines | Proposal | |
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Development of a printed circuit board project in KiCad based on a sample (photo + work description)
34 USD
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Creation of PCB according to the provided schematic, routing of the board
100 USD
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Board modification
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Board modification
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Board modification
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Board modification
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Board modification
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ESP32 based project
56 USD
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Development of the audio device board (part 4)
113 USD
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Optimization of the detector plate.
3383 USD
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