freiberufler Senior Embedded System Engineer auf freelance.de

Senior Embedded System Engineer

offline
  • auf Anfrage
  • 133001 YanJi
  • auf Anfrage
  • zh  |  ko  |  en
  • 09.06.2023

Kurzvorstellung

Long Experienced Embedded System Engineer,
- Expert on Hardware Design.
- Fluent in C++/C#/VHDL.
- Adept variant MCUs, ARMs, FPGAs
- Long experience in IoT filed.
: Mastered in BLE/Bluetooth Protocols.
: Depth knowledge in HTTP/UDP/FTP.

Auszug Referenzen (3)

"[...] had a good job, He is an excellent electronic engineer who is specialized in Hardware and Firmware both side"
Hardware & Firmware Ingenieur
Kundenname anonymisiert
Tätigkeitszeitraum

12/2015 – 12/2016

Tätigkeitsbeschreibung

Engaged in XP3 device development project.
“XP3” Audio Player
- Features:
 Audio file (MP3, WMA, Ogg Vorbis, AAC, FLAC, WAV PCM ) Play
 Stereo audio output to earphone and loud speaker
 2.4” TFT LCD
 10 keypads with backlight LEDs
 Low power consumption and high efficient battery management
- Tech specs:
 Microcontroller: VS1005G-F-Q
 Sensing movement using 3D accelerometer: MMA8653FCR1
 Interfaces: 2.4” TFT LCD, 10 keypads, 0.7W speaker, Earphone
 Storage: Micro SD card
 Programming and Debug: UART, USB
 Boot from Flash memory
 Power: DC5V, 3.7V Li-ion battery
 2-color status LED
 USB for programming and debug
- Main Skills:
 2-layer PCB design using Altium Designer
 3D Case design using Solidworks
 VS1005 firmware development
 Power saving operation for low power consumption

Single Port Dock for “XP3” Audio Player using Raspberry Pi Zero
- Features:
 Charging and Programming for “XP3” audio player
 Ethernet control for Raspberry Pi Zero
- Tech specs:
 Controller Board: Raspberry Pi Zero
 Ethernet controller: ENC28J60T-I/SS
 Interfaces: Ethernet
 Storage: Micro SD card
 Power: DC5V
 UART for programming and debug
- Main Skills:
 2-layer PCB design using Altium Designer

Eingesetzte Qualifikationen

Embedded Entwicklung / hardwarenahe Entwicklung, C++, Qt, Firmware, SolidWorks

"[...] [...] did a good job for me. He was prompt and responsive.
I would work with him again"
Embedded System Engineer.
Marcos
Tätigkeitszeitraum

12/2014 – 12/2015

Tätigkeitsbeschreibung

“HeadNoise Fit” Smart Headband
- Features:
 Ears-Free audio: Bluetooth 4.0 Audio streaming from smart phone
 Stereo audio output to external speaker
 Real time biometric analysis: calorie loss, step count, heart rate
 Low power consumption
- Tech specs:
 BLE SoC: CSR8670C-IBBH-R
 Oximeter/HR sensor: MAX30102EFD+
 Sensing motion using 3D accelerometer: MMA8653FCR1
 1.4W audio power amplifier: MAX9719AETE+T
 2.4GHz PCB antenna
 Interfaces: 1W R/L external speaker, I2C, Thermistor
 Programming and Debug: JTAG
 Power: 5V from USB type C connector, 3.7V Li-ion battery
 3-color status LEDs
- Main Skills:
 4-layer compact PCB design using Altium Designer
 RF circuit design with 50ohm impedance matching
 BLE SoC firmware and App development
 Low power consumption design

Eingesetzte Qualifikationen

Embedded Entwicklung / hardwarenahe Entwicklung, Altera (allg.), Quartus (Altera), Field Programmable Gate Array (FPGA), Embedded Systems, C++, Qt, Firmware

"Excellent work- asked some very smart questions that ended up saving us a lot of time and money on this project."
Project Manager for variant Embedded System (Festanstellung)
Kundenname anonymisiert
Tätigkeitszeitraum

7/2009 – 2/2016

Tätigkeitsbeschreibung

- Hardware design
Altium Designer, Autodesk Eagle, KiCAD.
- Firmware programming.
Atmel Studio, Arduino, mPlab, Keil C
Keil MDK, IAR, mBed
- Matlab
-Qt
- Rasberry PI, Orange PI

- BLE/Bluetooth Developer.
nRF51822, nRF52832, DA14580, DA14680, CSR8670

Eingesetzte Qualifikationen

Embedded Entwicklung / hardwarenahe Entwicklung, Altera (allg.), Quartus (Altera), Field Programmable Gate Array (FPGA), Embedded Linux, Embedded Systems, C++, MATLAB / Simulink, Qt, Firmware, Altium Designer, SolidWorks

Qualifikationen

  • Altera (allg.)
  • Altium Designer
  • C++
  • CodeWarrior
  • Embedded Entwicklung / hardwarenahe Entwicklung
  • Field Programmable Gate Array (FPGA)
  • Firmware
  • MATLAB / Simulink
  • SolidWorks
  • VHDL (VHSIC Hardware Description Language)

Projekt‐ & Berufserfahrung

Hardware & Firmware Ingenieur
Antenna International ltd, Jilin Provinz
12/2015 – 12/2016 (1 Jahr, 1 Monat)
Dienstleistungsbranche
Tätigkeitszeitraum

12/2015 – 12/2016

Tätigkeitsbeschreibung

Engaged in XP3 device development project.
“XP3” Audio Player
- Features:
 Audio file (MP3, WMA, Ogg Vorbis, AAC, FLAC, WAV PCM ) Play
 Stereo audio output to earphone and loud speaker
 2.4” TFT LCD
 10 keypads with backlight LEDs
 Low power consumption and high efficient battery management
- Tech specs:
 Microcontroller: VS1005G-F-Q
 Sensing movement using 3D accelerometer: MMA8653FCR1
 Interfaces: 2.4” TFT LCD, 10 keypads, 0.7W speaker, Earphone
 Storage: Micro SD card
 Programming and Debug: UART, USB
 Boot from Flash memory
 Power: DC5V, 3.7V Li-ion battery
 2-color status LED
 USB for programming and debug
- Main Skills:
 2-layer PCB design using Altium Designer
 3D Case design using Solidworks
 VS1005 firmware development
 Power saving operation for low power consumption

Single Port Dock for “XP3” Audio Player using Raspberry Pi Zero
- Features:
 Charging and Programming for “XP3” audio player
 Ethernet control for Raspberry Pi Zero
- Tech specs:
 Controller Board: Raspberry Pi Zero
 Ethernet controller: ENC28J60T-I/SS
 Interfaces: Ethernet
 Storage: Micro SD card
 Power: DC5V
 UART for programming and debug
- Main Skills:
 2-layer PCB design using Altium Designer

Eingesetzte Qualifikationen

Embedded Entwicklung / hardwarenahe Entwicklung, C++, Qt, Firmware, SolidWorks

Embedded System Engineer.
HeadNoise for Kick Start Campaign, LA.
12/2014 – 12/2015 (1 Jahr, 1 Monat)
Wearable Equipment
Tätigkeitszeitraum

12/2014 – 12/2015

Tätigkeitsbeschreibung

“HeadNoise Fit” Smart Headband
- Features:
 Ears-Free audio: Bluetooth 4.0 Audio streaming from smart phone
 Stereo audio output to external speaker
 Real time biometric analysis: calorie loss, step count, heart rate
 Low power consumption
- Tech specs:
 BLE SoC: CSR8670C-IBBH-R
 Oximeter/HR sensor: MAX30102EFD+
 Sensing motion using 3D accelerometer: MMA8653FCR1
 1.4W audio power amplifier: MAX9719AETE+T
 2.4GHz PCB antenna
 Interfaces: 1W R/L external speaker, I2C, Thermistor
 Programming and Debug: JTAG
 Power: 5V from USB type C connector, 3.7V Li-ion battery
 3-color status LEDs
- Main Skills:
 4-layer compact PCB design using Altium Designer
 RF circuit design with 50ohm impedance matching
 BLE SoC firmware and App development
 Low power consumption design

Eingesetzte Qualifikationen

Embedded Entwicklung / hardwarenahe Entwicklung, Altera (allg.), Quartus (Altera), Field Programmable Gate Array (FPGA), Embedded Systems, C++, Qt, Firmware

Project Manager for variant Embedded System (Festanstellung)
Kundenname anonymisiert, Jilin Provinz
7/2009 – 2/2016 (6 Jahre, 8 Monate)
Automobilindustrie
Tätigkeitszeitraum

7/2009 – 2/2016

Tätigkeitsbeschreibung

- Hardware design
Altium Designer, Autodesk Eagle, KiCAD.
- Firmware programming.
Atmel Studio, Arduino, mPlab, Keil C
Keil MDK, IAR, mBed
- Matlab
-Qt
- Rasberry PI, Orange PI

- BLE/Bluetooth Developer.
nRF51822, nRF52832, DA14580, DA14680, CSR8670

Eingesetzte Qualifikationen

Embedded Entwicklung / hardwarenahe Entwicklung, Altera (allg.), Quartus (Altera), Field Programmable Gate Array (FPGA), Embedded Linux, Embedded Systems, C++, MATLAB / Simulink, Qt, Firmware, Altium Designer, SolidWorks

Ausbildung

Electronic Engineering, Tshinghua University
Bachelor of Engineering(B.Eng)
2009
Beijing

Über mich

Wearable, RF, Handheld, Smart Sensor, Drone, IoT, Embedded Linux, Raspberry Pi, Orange Pi, Nano Pi, Debian, Raspberrian, Symbian, Fedora, Matlab

Weitere Kenntnisse

- Hardware Desgin
Wearable, IoT,Smart Sensor,RF,Power supplier design.
Schematic, PCB, 3D PCB, 3D casing Design.
Mastered in Altium Designer, Eagle PCB, KiCAD, Solid Works
- Embdded System programming & Firmware programming
: C, C++, C#, Swift, Verilog/VHDL, Java, Arduino Developer
: RTOS, Free RTOS, Raspberian, Debian, Symbian engineer.
: Mastered tons of MCU/FPGA/ARM
+ ESP32/ESP8266
+ STM: STM32F1XX, STM32F4XX
+ ATMEL: ATMEGA8/16/32/256, ATSAMxxx
+ Nordic : nRF51x22, nRF52832
+ Dialog : DA1458x, DA1468x
+ TI : cc2540, cc2560, cc3200, cc3000
+ Arduino: Arduino UNO, NANO, MEGA, DUE
+ Teensy.
+ Adafruit : Adafruit BLE, ,,,

Persönliche Daten

Sprache
  • Chinesisch (Muttersprache)
  • Englisch (Fließend)
  • Koreanisch (Muttersprache)
Reisebereitschaft
auf Anfrage
Home-Office
unbedingt
Profilaufrufe
2698
Alter
36
Berufserfahrung
14 Jahre und 7 Monate (seit 08/2009)
Projektleitung
8 Jahre

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