Pavlo D.
Private message 
Kharkiv,
Ukraine
available for hire
Rating
Language proficiency level
Українська: fluent
Русский: fluent
English: intermediate
Skills and abilities
Programming
- C & C++
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Desktop Apps
from 45 USD for project
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Embedded Systems & Microcontrollers
from 113 USD for project
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Python
from 45 USD for project
Design & art
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3D Modeling
from 45 USD for project
Architecture
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Mechanical Engineering & Instrument Making
from 113 USD for variant
Portfolio
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Controller of the engraving machine
Embedded Systems & Microcontrollers
Granite engraver, based on Stm32f446
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180 USD Stand for calibrated liquefied gas flow
Embedded Systems & Microcontrollers
Controller with indication, has the ability to connect GSM, GPS, WiFi, RS485(x2), RS232.
Such functionality has been added with the prospect of transforming the board into a monitoring system for liquefied gas, both for mobile and stationary objects.
In this case, the controller "communicates" via HART modem with the flow meter Promass-80 (Endress&Hauser).
… Power supply 24V, built-in surge protection circuit.
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BMS-1cell
Embedded Systems & Microcontrollers
single cell controller LiIon or LiFePo4 for 20+ amp-hours, functions - voltage/temperature monitoring, passive balancing by average value, status indication Number of cells connected in series up to 512, a special communication protocol has been developed, according to which information about all 512 batteries will be updated in 10 seconds
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Power supply of the device
Embedded Systems & Microcontrollers
4 batteries in a 2S2P configuration, 40 Wh,
outputs 2*9V 0.5A; 5V 3A; 5V 1A with low noise level
hardware charge control,
software via I2C - on/off outputs, % discharge, current, voltage, temperature
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RF-button
Embedded Systems & Microcontrollers
Radio button, 2.4GHz ISM, powered by a 50 mAh lithium-polymer battery, USB-micro charging
Reviews and compliments on completed projects 12 1
24 April
45 USD
Stm32 + can + rs485 + hx711
The work was done professionally and quickly. I recommend collaboration.
| Pavlo seemed competent at first, raised the fee but it did not meet the technical requirements. After a brief discussion, he agreed to redo it, but after that, he stopped responding. In the end, he did not complete the order.
9 April
16 USD
Development of a solution for reading firmware from the STC microcontroller
Thank you for the cooperation
A responsible person, I recommend for collaboration
Excellent specialist, fast work, competent, good feedback, we will continue to work further!
10 December 2025
338 USD
It is necessary to develop a program for the TP70 controller (Delta)
Our collaboration with Pavlo was productive. A lot of nerves went into creating the software for the controller. But Pavlo overcame it, and our equipment will be able to function in the future.
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8 December 2025
158 USD
Preliminary consultation on device development
Everything is great. The freelancer successfully completed the assigned task.
1 October 2025
135 USD
MDB board
all good. there was a moment - everything was agreed
7 September 2025
45 USD
Development of the board
Everything is great. Thank you. I recommend.
7 August 2025
45 USD
Analysis and correction of a C program for STM32
Thank you for the promptness and feedback on each issue
25 June 2025
68 USD
Analysis and correction of a C program for STM32
Everything went great, I recommend the freelancer
17 June 2025
90 USD
Development of electronic circuit, board
A reliable and very competent performer - I recommend to everyone!
Everything is great, Pavlo knows his stuff
5 June 2025
31 USD
Design of the heating plate
Everything is great! Fast and reliable! I recommend to everyone!
Activity
| Latest proposals 10 | Budget | Added | Deadlines | Proposal | |
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Writing code for Arduino
23 USD
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Project 1
34 USD
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Development of a printed circuit board (PCB) in KiCad based on the ready schematic (ESP32-S3, 4 slots)
90 USD
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Extract the firmware from the STM32 board
113 USD
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Development of a single-screw extruder automation system
23 USD
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Stm32 + can + rs485 + hx711
45 USD
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Development of a printed circuit board: STM32 + CH32V003 (RS485, CAN, HX711)
45 USD
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FPV and NRK finish tracking system for races
23 USD
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Development of a solution for reading firmware from the STC microcontroller
16 USD
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ESP32-S3 PCB Outline Design
58 USD
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