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freiberufler Embedded, SW and HW development, Bluetooth, RF, C, C++, Low power devices auf freelance.de

Embedded, SW and HW development, Bluetooth, RF, C, C++, Low power devices

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  • 73614 Schorndorf (Württemberg)
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  • 02.08.2024
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Kurzvorstellung

Embedded, SW and HW development, Bluetooth, RF, C, C++, Low power devices

Qualifikationen

  • Bluetooth
  • C4 J.
  • C++1 J.
  • CE-Kennzeichnung3 J.
  • DevOps1 J.
  • Embedded Entwicklung / hardwarenahe Entwicklung
  • Git4 J.
  • Microsoft Azure1 J.
  • nRF52
  • Software Architektur / Modellierung3 J.
  • Softwareentwicklung (allg.)4 J.
  • STM322 J.
  • Zephyr

Projekt‐ & Berufserfahrung

HW and SW development. Product specs definition. Housing design. Mobile app design.
Kundenname anonymisiert, Osftildern
12/2023 – 7/2024 (8 Monate)
IT & Entwicklung
Tätigkeitszeitraum

12/2023 – 7/2024

Tätigkeitsbeschreibung

Project: Distributed system of sensors.
Responsibilities: HW and SW development. Product specs definition. Housing design. Mobile app design.
Project description: Distributed system of sensors for measurements of environmental factors. Custom BLE bases communication protocol. Custom mesh-like network based on BLE for data transmission. Android app for data collection and presentation.
Tools used: C, Python, Keil µVision, Git, BlueNRG-232, nRF Connect tools, BLE, Spectrum analyzer, logic analyzer, OSCI, etc.

Eingesetzte Qualifikationen

Hardware Entwicklung, STM32, Software Architektur / Modellierung, C, Git, Python, Softwareentwicklung (allg.)

HW and SW development (Festanstellung)
Kundenname anonymisiert, Aalen
11/2023 – offen (11 Monate)
Fertigungsindustrie
Tätigkeitszeitraum

11/2023 – offen

Tätigkeitsbeschreibung

Project: Wearable device.
Responsibilities: HW and SW development. Hosing design (support).
Project description: Small PCB, flex PCB, small rechargeable LiPo battery. BMS (battery management system). Low power. Motion detection. BLE (Bluetooth Low Energy)
Tools: C, C++, Python, KiCad, VS Code, Git, Azure DevOps, nrf52, Zephyr, STM32, STM32 Cube IDE, nRF Connect tools, BLE

Eingesetzte Qualifikationen

DevOps, STM32, Software Architektur / Modellierung, C, C++, Git, Python, Softwareentwicklung (allg.), Microsoft Azure

HW and SW development. CE Certification - technical support. BLE qualification - org and testing support.
Kundenname anonymisiert, Esslingen
10/2022 – 11/2023 (1 Jahr, 2 Monate)
Fertigungsindustrie
Tätigkeitszeitraum

10/2022 – 11/2023

Tätigkeitsbeschreibung

Project: System for vibration analyses and BLE remote control.
Responsibilities: HW and SW development. CE Certification - technical support. BLE qualification - org and testing support. Production planning and cost calculation. Long term testing. SW stability testing. Housing design support.
Project description: Auto start/stop for industrial vacuum cleaner. Vibration measurements using accelerometer. Digital signal processing. Transmitter and receiver. BLE (Bluetooth low energy). Custom communication protocol, based on BLE. CR2032 battery. Three different interfaces for the host device (for receiver): UART-based, button and LEDs, timer-based.
Tools used: C, Google Protobuf (nanopb), STM32 Cube IDE, Git, BlueNRG232, nRF Connect tools, Spectrum analyzer, Logic analyzer, OSCI, etc.

Eingesetzte Qualifikationen

Softwareentwicklung (allg.), C, Git, Hardware Entwicklung, Messgeräte / Messsysteme, Software Design, STM32

Project management. Technical specification of electronics. SW and HW development support.
Kundenname anonymisiert, Ebersbach
7/2022 – 6/2023 (1 Jahr)
Fertigungsindustrie
Tätigkeitszeitraum

7/2022 – 6/2023

Tätigkeitsbeschreibung

Project: Battery driven portable vacuum cleaner.
Responsibilities: Project management. Technical specification of electronics. SW and HW development support. Certification. EMC problem solving. Testing.
Project description: Signe DC motor control. BMS. 2 x 18V Batteries connected in series. Overcurrent protection and protection against blocking.
Tools: C, STM32, STM32 Cube IDE, Altium, Git

Eingesetzte Qualifikationen

CE-Kennzeichnung, Altium Designer, C, Git, Projektleitung / Teamleitung, STM32

Project management. Technical specification of electronics. SW and HW development support. Certification.
Kundenname anonymisiert, Ebersbach
6/2022 – 12/2023 (1 Jahr, 7 Monate)
Fertigungsindustrie
Tätigkeitszeitraum

6/2022 – 12/2023

Tätigkeitsbeschreibung

Project: Electric sweeper
Responsibilities: Project management. Technical specification of electronics. SW and HW development support. Certification. EMC problem solving. Testing.
Project description: Multiple DC motors controlled independently. 18 V Battery. Battery management system (BMS). Soft start. Overcurrent protection and protection against blocking. BLE enabled device.
Tools: C, nRF52810, STM32 Cube IDE, Altium, Git

Eingesetzte Qualifikationen

CE-Kennzeichnung, Altium Designer, C, Git, Projektleitung / Teamleitung, STM32

HW and SW development. Project management. CE and FCC Certification - technical support.
Kundenname anonymisiert, Ebersbach
12/2020 – 10/2022 (1 Jahr, 11 Monate)
Fertigungsindustrie
Tätigkeitszeitraum

12/2020 – 10/2022

Tätigkeitsbeschreibung

Project: System for vibration analyses and BLE remote control
Responsibilities: HW and SW development. Project management. CE and FCC Certification - technical support. Long term testing. SW stability testing.
Project description: Vibration measurement using accelerometer. Digital signal processing. BLE (Bluetooth Low Energy). CR2032.
Tools used: C, Google Protobuf (nanopb), STM32 Cube IDE, Git, BlueNRG232, nRF Connect tools.

Eingesetzte Qualifikationen

CE-Kennzeichnung, C, Git, Hardware Entwicklung, Software Architektur / Modellierung, Softwareentwicklung (allg.), Technische Projektleitung / Teamleitung

Weitere Projekt‐ & Berufserfahrung anzeigen

Über mich

• Embedded, SW development, HW development.
• Low power devices, battery driven devices, optimization of power consumption.
• Bluetooth, RF, 2.4Ghz.
• Antenna matching, Optimization of radio performance.
• Certification, CE, FCC, EMC measurements,
• MEMS. Sensors, pressure, temperature, acceleration measurement.
• Digital signal processing.
• Design of custom communication protocols and Bluetooth profiles.
• Battery management, battery protection, charging.
• Consumer electronics, wearable devices, power tools, dust extractors, very small PCBs and flex PCBs.
• Managed a number of electronics development projects from the concept phase till production.
• C, C++, Python, VS Code, STM32CubeIDE, Keil µVision, Segger Embedded Studio, Atmel Studio, Zephyr, Git, Azure DevOps, Google protobuf (nanoPB), KiCad, Proteus designer, STM32, BlueNRG, nRF52, Atmel, logic analyser, oscilloscope, spectrum analyser, power profilers, soldering equipment, 3D printers - used on regular basis.

Persönliche Daten

Sprache
  • Russisch (Muttersprache)
  • Deutsch (Fließend)
  • Englisch (Fließend)
Reisebereitschaft
auf Anfrage
Arbeitserlaubnis
  • Europäische Union
  • Schweiz
Profilaufrufe
218
Alter
41
Berufserfahrung
7 Jahre und 8 Monate (seit 01/2017)
Projektleitung
5 Jahre

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