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Denis A.

@dennuar

4.7
45
6.9
6.9
96%

Embeded Software/ Electronics developer

$20 USD / Hour
・
Flag of
Ukraine (4:27 AM)
・
Joined on July 21, 2015
$20 USD / Hour
・
Engineer with experience in develop analog and digital devices over 15 years. I have worked with different topologies for DC-DC, AC-DC, DC-AC converters; completed a lot of projects based on FPGA and MCU - ARM - STM32, NRF51/52, AVR, ESP8266, PIC, Arduino, NXP. I have knowledge and working experience with interfaces - RS-485/232/422, WiFi, Bluetooth LE and Bluetooth 5.0 LE, SPI, I2C etc; a lot of sensors, peripheral ICs. Also in the last time I'm coding with many RTOS (FreeRTOS, Micrium and others.) I have great experience with Low Power Lora EndNodes and Gateways development (433MHz/868MHz/2.4GHz). Expirience with Linux mini PC: Rpi, Opi and etc Offer help with: - Scheme develop - PCB design - Altium Designer, OrCAD, Eagle CAD, KiCAD, Proteus, Multisim and etc. - C/C++ coding for many microcontrollers, also for linux - Simulation in Spice simulators LTSpice, Proteus and etc - Prototype in electronic lab - 3D CADs design: SolidWorks, Kompas 3D and etc. For contact: Skype: artjden
Verifications
On time
100%
On budget
100%
Accept rate
71%
Repeat hire rate
31%
Freelancer Electronics Engineers Ukraine
See all Electronics Engineers in Ukraine

Portfolio

Portfolio

3293306
IoT Dimmer Smarphone or via Internet control. Prototype. Home made PCB. Android control support.
WiFi IoT Lamp Dimmer (ESP8266)
IoT Dimmer Smarphone or via Internet control. Prototype. Home made PCB. Android control support.
WiFi IoT Lamp Dimmer (ESP8266)
IoT Dimmer Smarphone or via Internet control. Prototype. Home made PCB. Android control support.
WiFi IoT Lamp Dimmer (ESP8266)
IoT Dimmer Smarphone or via Internet control. Prototype. Home made PCB. Android control support.
WiFi IoT Lamp Dimmer (ESP8266)
2215361
Arduino Projects prototyping I2C temperature 14bit sensor PCB Layout prototype
Arduino Projects Prototyping.
Arduino Projects prototyping I2C temperature 14bit sensor PCB Layout prototype
Arduino Projects Prototyping.
Arduino Projects prototyping I2C temperature 14bit sensor PCB Layout prototype
Arduino Projects Prototyping.
Arduino Projects prototyping I2C temperature 14bit sensor PCB Layout prototype
Arduino Projects Prototyping.
Arduino Projects prototyping I2C temperature 14bit sensor PCB Layout prototype
Arduino Projects Prototyping.
Arduino Projects prototyping I2C temperature 14bit sensor PCB Layout prototype
Arduino Projects Prototyping.
Arduino Projects prototyping I2C temperature 14bit sensor PCB Layout prototype
Arduino Projects Prototyping.
Arduino Projects prototyping I2C temperature 14bit sensor PCB Layout prototype
Arduino Projects Prototyping.
3176098
Wheelchair controller for wheelchair with STM32F405 Cortex-M4, CAN interface, IMU(MPU-9250), LEDs, buttons, JTAG, Joystick connector, Bluetooth interface for settings and updating firmware without wires. https://www.youtube.com/watch?v=cugZ1KpN20k
Wheelchair controller PCB v2 base on STM32F405 + Bluetooth
Wheelchair controller for wheelchair with STM32F405 Cortex-M4, CAN interface, IMU(MPU-9250), LEDs, buttons, JTAG, Joystick connector, Bluetooth interface for settings and updating firmware without wires. https://www.youtube.com/watch?v=cugZ1KpN20k
Wheelchair controller PCB v2 base on STM32F405 + Bluetooth
Wheelchair controller for wheelchair with STM32F405 Cortex-M4, CAN interface, IMU(MPU-9250), LEDs, buttons, JTAG, Joystick connector, Bluetooth interface for settings and updating firmware without wires. https://www.youtube.com/watch?v=cugZ1KpN20k
Wheelchair controller PCB v2 base on STM32F405 + Bluetooth
Wheelchair controller for wheelchair with STM32F405 Cortex-M4, CAN interface, IMU(MPU-9250), LEDs, buttons, JTAG, Joystick connector, Bluetooth interface for settings and updating firmware without wires. https://www.youtube.com/watch?v=cugZ1KpN20k
Wheelchair controller PCB v2 base on STM32F405 + Bluetooth
Wheelchair controller for wheelchair with STM32F405 Cortex-M4, CAN interface, IMU(MPU-9250), LEDs, buttons, JTAG, Joystick connector, Bluetooth interface for settings and updating firmware without wires. https://www.youtube.com/watch?v=cugZ1KpN20k
Wheelchair controller PCB v2 base on STM32F405 + Bluetooth
Wheelchair controller for wheelchair with STM32F405 Cortex-M4, CAN interface, IMU(MPU-9250), LEDs, buttons, JTAG, Joystick connector, Bluetooth interface for settings and updating firmware without wires. https://www.youtube.com/watch?v=cugZ1KpN20k
Wheelchair controller PCB v2 base on STM32F405 + Bluetooth
Wheelchair controller for wheelchair with STM32F405 Cortex-M4, CAN interface, IMU(MPU-9250), LEDs, buttons, JTAG, Joystick connector, Bluetooth interface for settings and updating firmware without wires. https://www.youtube.com/watch?v=cugZ1KpN20k
Wheelchair controller PCB v2 base on STM32F405 + Bluetooth
Wheelchair controller for wheelchair with STM32F405 Cortex-M4, CAN interface, IMU(MPU-9250), LEDs, buttons, JTAG, Joystick connector, Bluetooth interface for settings and updating firmware without wires. https://www.youtube.com/watch?v=cugZ1KpN20k
Wheelchair controller PCB v2 base on STM32F405 + Bluetooth
2981793
Wheelchair controller for wheelchair with STM32F405 Cortex-M4, CAN interface, IMU(MPU-9250), LEDs, buttons, JTAG, Joystick connector. https://www.youtube.com/watch?v=cugZ1KpN20k
Wheelchair controller pcb base on STM32F405
Wheelchair controller for wheelchair with STM32F405 Cortex-M4, CAN interface, IMU(MPU-9250), LEDs, buttons, JTAG, Joystick connector. https://www.youtube.com/watch?v=cugZ1KpN20k
Wheelchair controller pcb base on STM32F405
Wheelchair controller for wheelchair with STM32F405 Cortex-M4, CAN interface, IMU(MPU-9250), LEDs, buttons, JTAG, Joystick connector. https://www.youtube.com/watch?v=cugZ1KpN20k
Wheelchair controller pcb base on STM32F405
Wheelchair controller for wheelchair with STM32F405 Cortex-M4, CAN interface, IMU(MPU-9250), LEDs, buttons, JTAG, Joystick connector. https://www.youtube.com/watch?v=cugZ1KpN20k
Wheelchair controller pcb base on STM32F405
Wheelchair controller for wheelchair with STM32F405 Cortex-M4, CAN interface, IMU(MPU-9250), LEDs, buttons, JTAG, Joystick connector. https://www.youtube.com/watch?v=cugZ1KpN20k
Wheelchair controller pcb base on STM32F405
Wheelchair controller for wheelchair with STM32F405 Cortex-M4, CAN interface, IMU(MPU-9250), LEDs, buttons, JTAG, Joystick connector. https://www.youtube.com/watch?v=cugZ1KpN20k
Wheelchair controller pcb base on STM32F405
Wheelchair controller for wheelchair with STM32F405 Cortex-M4, CAN interface, IMU(MPU-9250), LEDs, buttons, JTAG, Joystick connector. https://www.youtube.com/watch?v=cugZ1KpN20k
Wheelchair controller pcb base on STM32F405
2632280
Master read infromation from internet via WiFi, then send this data via RF protocol to long distance to slaves and master receive information from slaves. After master send information back to web server. Slaves work from clock battery very long time( > 4weeks). In sleep mode very low power consuption (
WiFi + RF system (Master + 4 Slaves)
Master read infromation from internet via WiFi, then send this data via RF protocol to long distance to slaves and master receive information from slaves. After master send information back to web server. Slaves work from clock battery very long time( > 4weeks). In sleep mode very low power consuption (
WiFi + RF system (Master + 4 Slaves)
Master read infromation from internet via WiFi, then send this data via RF protocol to long distance to slaves and master receive information from slaves. After master send information back to web server. Slaves work from clock battery very long time( > 4weeks). In sleep mode very low power consuption (
WiFi + RF system (Master + 4 Slaves)
Master read infromation from internet via WiFi, then send this data via RF protocol to long distance to slaves and master receive information from slaves. After master send information back to web server. Slaves work from clock battery very long time( > 4weeks). In sleep mode very low power consuption (
WiFi + RF system (Master + 4 Slaves)
Master read infromation from internet via WiFi, then send this data via RF protocol to long distance to slaves and master receive information from slaves. After master send information back to web server. Slaves work from clock battery very long time( > 4weeks). In sleep mode very low power consuption (
WiFi + RF system (Master + 4 Slaves)
2632321
Quadrocopter fly system(with RF control).
Quadrocopter fly system(with RF control).
Quadrocopter fly system(with RF control).
Quadrocopter fly system(with RF control).
Quadrocopter fly system(with RF control).
Quadrocopter fly system(with RF control).
3293306
IoT Dimmer Smarphone or via Internet control. Prototype. Home made PCB. Android control support.
WiFi IoT Lamp Dimmer (ESP8266)
IoT Dimmer Smarphone or via Internet control. Prototype. Home made PCB. Android control support.
WiFi IoT Lamp Dimmer (ESP8266)
IoT Dimmer Smarphone or via Internet control. Prototype. Home made PCB. Android control support.
WiFi IoT Lamp Dimmer (ESP8266)
IoT Dimmer Smarphone or via Internet control. Prototype. Home made PCB. Android control support.
WiFi IoT Lamp Dimmer (ESP8266)
2215361
Arduino Projects prototyping I2C temperature 14bit sensor PCB Layout prototype
Arduino Projects Prototyping.
Arduino Projects prototyping I2C temperature 14bit sensor PCB Layout prototype
Arduino Projects Prototyping.
Arduino Projects prototyping I2C temperature 14bit sensor PCB Layout prototype
Arduino Projects Prototyping.
Arduino Projects prototyping I2C temperature 14bit sensor PCB Layout prototype
Arduino Projects Prototyping.
Arduino Projects prototyping I2C temperature 14bit sensor PCB Layout prototype
Arduino Projects Prototyping.
Arduino Projects prototyping I2C temperature 14bit sensor PCB Layout prototype
Arduino Projects Prototyping.
Arduino Projects prototyping I2C temperature 14bit sensor PCB Layout prototype
Arduino Projects Prototyping.
Arduino Projects prototyping I2C temperature 14bit sensor PCB Layout prototype
Arduino Projects Prototyping.
3176098
Wheelchair controller for wheelchair with STM32F405 Cortex-M4, CAN interface, IMU(MPU-9250), LEDs, buttons, JTAG, Joystick connector, Bluetooth interface for settings and updating firmware without wires. https://www.youtube.com/watch?v=cugZ1KpN20k
Wheelchair controller PCB v2 base on STM32F405 + Bluetooth
Wheelchair controller for wheelchair with STM32F405 Cortex-M4, CAN interface, IMU(MPU-9250), LEDs, buttons, JTAG, Joystick connector, Bluetooth interface for settings and updating firmware without wires. https://www.youtube.com/watch?v=cugZ1KpN20k
Wheelchair controller PCB v2 base on STM32F405 + Bluetooth
Wheelchair controller for wheelchair with STM32F405 Cortex-M4, CAN interface, IMU(MPU-9250), LEDs, buttons, JTAG, Joystick connector, Bluetooth interface for settings and updating firmware without wires. https://www.youtube.com/watch?v=cugZ1KpN20k
Wheelchair controller PCB v2 base on STM32F405 + Bluetooth
Wheelchair controller for wheelchair with STM32F405 Cortex-M4, CAN interface, IMU(MPU-9250), LEDs, buttons, JTAG, Joystick connector, Bluetooth interface for settings and updating firmware without wires. https://www.youtube.com/watch?v=cugZ1KpN20k
Wheelchair controller PCB v2 base on STM32F405 + Bluetooth
Wheelchair controller for wheelchair with STM32F405 Cortex-M4, CAN interface, IMU(MPU-9250), LEDs, buttons, JTAG, Joystick connector, Bluetooth interface for settings and updating firmware without wires. https://www.youtube.com/watch?v=cugZ1KpN20k
Wheelchair controller PCB v2 base on STM32F405 + Bluetooth
Wheelchair controller for wheelchair with STM32F405 Cortex-M4, CAN interface, IMU(MPU-9250), LEDs, buttons, JTAG, Joystick connector, Bluetooth interface for settings and updating firmware without wires. https://www.youtube.com/watch?v=cugZ1KpN20k
Wheelchair controller PCB v2 base on STM32F405 + Bluetooth
Wheelchair controller for wheelchair with STM32F405 Cortex-M4, CAN interface, IMU(MPU-9250), LEDs, buttons, JTAG, Joystick connector, Bluetooth interface for settings and updating firmware without wires. https://www.youtube.com/watch?v=cugZ1KpN20k
Wheelchair controller PCB v2 base on STM32F405 + Bluetooth
Wheelchair controller for wheelchair with STM32F405 Cortex-M4, CAN interface, IMU(MPU-9250), LEDs, buttons, JTAG, Joystick connector, Bluetooth interface for settings and updating firmware without wires. https://www.youtube.com/watch?v=cugZ1KpN20k
Wheelchair controller PCB v2 base on STM32F405 + Bluetooth
2981793
Wheelchair controller for wheelchair with STM32F405 Cortex-M4, CAN interface, IMU(MPU-9250), LEDs, buttons, JTAG, Joystick connector. https://www.youtube.com/watch?v=cugZ1KpN20k
Wheelchair controller pcb base on STM32F405
Wheelchair controller for wheelchair with STM32F405 Cortex-M4, CAN interface, IMU(MPU-9250), LEDs, buttons, JTAG, Joystick connector. https://www.youtube.com/watch?v=cugZ1KpN20k
Wheelchair controller pcb base on STM32F405
Wheelchair controller for wheelchair with STM32F405 Cortex-M4, CAN interface, IMU(MPU-9250), LEDs, buttons, JTAG, Joystick connector. https://www.youtube.com/watch?v=cugZ1KpN20k
Wheelchair controller pcb base on STM32F405
Wheelchair controller for wheelchair with STM32F405 Cortex-M4, CAN interface, IMU(MPU-9250), LEDs, buttons, JTAG, Joystick connector. https://www.youtube.com/watch?v=cugZ1KpN20k
Wheelchair controller pcb base on STM32F405
Wheelchair controller for wheelchair with STM32F405 Cortex-M4, CAN interface, IMU(MPU-9250), LEDs, buttons, JTAG, Joystick connector. https://www.youtube.com/watch?v=cugZ1KpN20k
Wheelchair controller pcb base on STM32F405
Wheelchair controller for wheelchair with STM32F405 Cortex-M4, CAN interface, IMU(MPU-9250), LEDs, buttons, JTAG, Joystick connector. https://www.youtube.com/watch?v=cugZ1KpN20k
Wheelchair controller pcb base on STM32F405
Wheelchair controller for wheelchair with STM32F405 Cortex-M4, CAN interface, IMU(MPU-9250), LEDs, buttons, JTAG, Joystick connector. https://www.youtube.com/watch?v=cugZ1KpN20k
Wheelchair controller pcb base on STM32F405
2632280
Master read infromation from internet via WiFi, then send this data via RF protocol to long distance to slaves and master receive information from slaves. After master send information back to web server. Slaves work from clock battery very long time( > 4weeks). In sleep mode very low power consuption (
WiFi + RF system (Master + 4 Slaves)
Master read infromation from internet via WiFi, then send this data via RF protocol to long distance to slaves and master receive information from slaves. After master send information back to web server. Slaves work from clock battery very long time( > 4weeks). In sleep mode very low power consuption (
WiFi + RF system (Master + 4 Slaves)
Master read infromation from internet via WiFi, then send this data via RF protocol to long distance to slaves and master receive information from slaves. After master send information back to web server. Slaves work from clock battery very long time( > 4weeks). In sleep mode very low power consuption (
WiFi + RF system (Master + 4 Slaves)
Master read infromation from internet via WiFi, then send this data via RF protocol to long distance to slaves and master receive information from slaves. After master send information back to web server. Slaves work from clock battery very long time( > 4weeks). In sleep mode very low power consuption (
WiFi + RF system (Master + 4 Slaves)
Master read infromation from internet via WiFi, then send this data via RF protocol to long distance to slaves and master receive information from slaves. After master send information back to web server. Slaves work from clock battery very long time( > 4weeks). In sleep mode very low power consuption (
WiFi + RF system (Master + 4 Slaves)
2632321
Quadrocopter fly system(with RF control).
Quadrocopter fly system(with RF control).
Quadrocopter fly system(with RF control).
Quadrocopter fly system(with RF control).
Quadrocopter fly system(with RF control).
Quadrocopter fly system(with RF control).
Changes saved
4.7 · 45 Reviews
Reviews
User Avatar
Project Design & Coding for KLS • $1,400 USD
Solve Problems by his own.
Sascha O.
@Shopconstruct
•
Flag of
Marl, Germany
•
7 years ago
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L
Project for dennuar -- 7 • $815 USD
Denis is excellent to work with and delivers excellent work. I always use Denis for my PCB layout work.
Closed User
@Leeman
•
Flag of
,
•
8 years ago
Share
J
Circuit board • $40 USD
Great Freelancer
Jack N.
@jacknewman2016
•
Flag of
Nottingham, United Kingdom
•
8 years ago
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User Avatar
Project 13597682 has been deleted • $35 USD
wonderful working with you again, excellent job, thanks so much!
Matthew E.
@kitschbent
•
Flag of
Hickory, United States
•
8 years ago
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User Avatar
Project 13551182 has been deleted • $50 USD
very easy to work with, will use again
Matthew E.
@kitschbent
•
Flag of
Hickory, United States
•
8 years ago
Share
Education
Odes'kij Nacional'nij Mors'kij Universitet
1995 - 2002
•
7 years
Master
Flag of
Ukraine
1995 - 2002
•
7 years
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