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$50 USD / hour
Flag of CANADA
beaconsfield, canada
$50 USD / hour
It's currently 2:07 PM here
Joined September 19, 2013
1 Recommendation

Dmitri S.

@dsnejko

monthly-level-two.svg 4.9 (9 reviews)
5.8
5.8
100%
100%
$50 USD / hour
Flag of CANADA
beaconsfield, canada
$50 USD / hour
100%
Jobs Completed
100%
On Budget
100%
On Time
8%
Repeat Hire Rate

Embedded Electronics Professional

Professional Electronics Designer. Broad experience in Applied Optics, Didital/Analog electronics, Data Acquisition, Real Time applications, PCB design, manufacturing, cost optimization etc. Rapid prototyping and pre-production pilot manufacturing. Experience with: Microcontrollers - 8051, ATMega, NXP ARM, TI ARM, STM ARM, ColdFire, TMS5000, TMS2000, PICs, Different BLE SOCs from TI, Nordic Semi, Cypress, Dialog Semi. Programmable Logic - Altera's Cyclon, CPLD MAX.
Freelancer Electronics Engineers Canada
See all Electronics Engineers in Canada

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Portfolio

1983445
Dual channel LED driver. Each channel produces 45V 4.5A output (~200W) with 95% efficiency. Input voltage 24-28V. The driver was tested with modulation 300Hz 30% duty cycle with natural convection cooling.
LED Driver
Dual channel LED driver. Each channel produces 45V 4.5A output (~200W) with 95% efficiency. Input voltage 24-28V. The driver was tested with modulation 300Hz 30% duty cycle with natural convection cooling.
LED Driver
Dual channel LED driver. Each channel produces 45V 4.5A output (~200W) with 95% efficiency. Input voltage 24-28V. The driver was tested with modulation 300Hz 30% duty cycle with natural convection cooling.
LED Driver
1983418
Custom fit BLE sensor based on CC2541. The board includes a lipo battery, a charger, power management, sensing circuit, radio, pcb antenna. A batch of 100 was done, 99% yield achieved.
Custom BLE Sensor
1983393
16mm diameter BLE sensor including a battery, CC2541 radio, power management, high precision sensor. Three boards stack-up. This design was improved in next revision and the size was reduced to 13mm single board. \\n
PCB, Schematic design and micro-controller project
1123910
A 1-wire network device provide temperature readings just like DS18B20 sensor. But this device allows you to connect a Thermocouple, Thermistor or RTD. The board emulates a DS18B20 so that it could be read by the same code that reads DS18B20 sensors.
1-wire network device provides temperature readings
970250
Designed and implemented an electronic control system for high power pump fiber laser. The laser creating an “Artificial” Star. Paranal VLT project.
Control System for pump laser. Paranal.
1983445
Dual channel LED driver. Each channel produces 45V 4.5A output (~200W) with 95% efficiency. Input voltage 24-28V. The driver was tested with modulation 300Hz 30% duty cycle with natural convection cooling.
LED Driver
Dual channel LED driver. Each channel produces 45V 4.5A output (~200W) with 95% efficiency. Input voltage 24-28V. The driver was tested with modulation 300Hz 30% duty cycle with natural convection cooling.
LED Driver
Dual channel LED driver. Each channel produces 45V 4.5A output (~200W) with 95% efficiency. Input voltage 24-28V. The driver was tested with modulation 300Hz 30% duty cycle with natural convection cooling.
LED Driver
1983418
Custom fit BLE sensor based on CC2541. The board includes a lipo battery, a charger, power management, sensing circuit, radio, pcb antenna. A batch of 100 was done, 99% yield achieved.
Custom BLE Sensor
1983393
16mm diameter BLE sensor including a battery, CC2541 radio, power management, high precision sensor. Three boards stack-up. This design was improved in next revision and the size was reduced to 13mm single board. \\n
PCB, Schematic design and micro-controller project
1123910
A 1-wire network device provide temperature readings just like DS18B20 sensor. But this device allows you to connect a Thermocouple, Thermistor or RTD. The board emulates a DS18B20 so that it could be read by the same code that reads DS18B20 sensors.
1-wire network device provides temperature readings
970250
Designed and implemented an electronic control system for high power pump fiber laser. The laser creating an “Artificial” Star. Paranal VLT project.
Control System for pump laser. Paranal.

Reviews

Changes saved
Showing 1 - 5 out of 9 reviews
Filter reviews by:
5.0
$777.00 USD
TEC Cooler - Peltier - Electronics PCB
Excellent service. and communication and very flexible. We hope to work with him again.
Electronics
PCB Layout
R
Flag of Sara O.
@RadBCN
•
9 years ago
4.6
$1,155.00 USD
Bluetooth LE Prototype Device
Dmitri was great to work with and very knowledgeable in the subject matter. He delivered material mostly on-time and without the need for much oversight.
Embedded Software
PCB Layout
Circuit Design
Bluetooth Low Energy (BLE)
F
Closed User
@flightinspec
•
9 years ago
5.0
$550.00 USD
LED strobe controller specification nd design - open to bidding
Great freelancer. Very professional and knowledgeable.
Electronics
User Avatar
Flag of Slawek F.
@sfrackowiak
•
9 years ago
5.0
$2,500.00 CAD
PCB, Schematic design and micro-controller programming
He is Genius. I would definitely try to have him for my next project. Completely expert in electronics.
J
Flag of Ravinder S.
@jakelemon85
•
9 years ago
4.0
€250.00 EUR
PIC32 Bootloader and application migration
Problem was solved quickly.
Electronics
Microcontroller
Electrical Engineering
Embedded Software
G
Flag of Guilaume R.
@guillaumerico
•
10 years ago

Experience

Senior Electronics Designer

MPB Communications Inc
May 1999 - Present

Education

MSc. Physics

Sankt-Peterburgskij Gosudarstvennyj Universitet, Russian Federation 1982 - 1988
(6 years)

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Top Skills

Electronics 7
Microcontroller 7
PCB Layout 5
Embedded Software 4
Circuit Design 3

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