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ViliusZasimauska ViliusZasimauska

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$30 USD / hour
Professional Electrical engineer | RF | PCB design
Lithuania
0.0
0 reviews 0 reviews $30 USD per hour
Altium Designer, Arduino, Circuit Board Layout, Circuit Design, Digital Electronics
"Sergey is knowledgeable of electronics principles and able to complete electronics design." "Excellent to work with." "Outstanding work. You can trust this guy. Will hire again." "Sergey has a lot of knowledge with PCB designs and is a valuable asset to any team." I provide high-quality full cycle Electrical... more
"Sergey is knowledgeable of electronics principles and able to complete electronics design." "Excellent to work with." "Outstanding work. You can trust this guy. Will hire again." "Sergey has a lot of knowledge with PCB designs and is a valuable asset to any team." I provide high-quality full cycle Electrical Engineering services from Idea to Mass Production: Hardware, Firmware, Product Design, Prototyping, Manufacturing. HARDWARE: - PCB design: Altium, Eagle. Experience in Digital, Analog, Power electronics, Digital Signal Processing. - 6-12 layers PCB layout, RF design, HDI routing, dense routing, thermal management. - Gigabit Ethernet and USB-C. High-speed routing with length matching; impedance calculations. - Component selection, BOM optimisation, preparation of manufacturing documentation. - High current PCB routing up to 100A FIRMWARE: I can program MCU, but usually this is a job for a programmer. I specilize on hardware. - MCU firmware in C for ARM, TI, NXP, Atmel, PIC, Arduino; Python; - Bluetooth, Bluetooth Low Energy (BLE), and wireless modules programming. PROTOTYPING: - PCB Prototype manufacturing, debugging, and validation; - Consultation on any aspect of design and manufacturing. MANUFACTURING - BOM optimization to save cost / get better components availability - Creating test instructions, work instructions, test jigs - Organization of contract manufacturing in China I HAVE EXPERIENCE IN: - IoT projects, sensors, wearable electronics, Smart-home systems; - Automotive and Climate control equipment. I developed hardware equipment for autonomous driving systems. - High current high power electronics (BLDC drivers, frequency converters, battery chargers, battery balancers, inverters, power banks, home power storage systems) - High voltage power supplies up to 20 kV - Energy harvesting (solar, piezo, thermal) - Digital signal processing, audio signal processing, Sigma Studio - Solar trackers - Video recording systems for commercial delivery fleet - Wearable projects with tiny flex rigid pcbs AUDIO: - Analog signal processing, High End audio amplifiers - Room acoustic treatment consultations - ANC earbuds and headphones development INDUSTRIAL: - High-reliability systems for critical applications (Robotics, Oil and Gas, Automation); - Micro-controller control systems; - Power Supplies (AC/DC/AC) - AC, DC, BLDC, Step motors, robotics MEDICAL: - ECG, EMG, PPG, SpO2 sensors - Blood pressure monitoring - Respiration rate monitoring - Limbs position monitoring WIRELESS: - Bluetooth and BLE-enabled devices; - 2.4Ghz radio transmitters (nRF24 family); - NFC tags: hacking, cloning; - Wireless charging Tags: Electrical Engineer, Electrical Engineering, Electronics, Hardware, Firmware, PCB layout, Board layout, Schematics, Altium, IoT, Internet of Things, Power Electronis, Bluetooth, BLE, TI, Texas Instruments, C, C++, MCU, Microcontroller, prototype, validation, BMS, Fusion360, USB-C less
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