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$20 USD / hour
Flag of CHINA
beijing, china
$20 USD / hour
It's currently 1:27 PM here
Joined May 7, 2020
1 Recommendation

Xianghu M.

@lsjlsj04127

annual-level-three.svg
4.8 (4 reviews)
5.3
5.3
$20 USD / hour
Flag of CHINA
beijing, china
$20 USD / hour
100%
Jobs Completed
100%
On Budget
100%
On Time
20%
Repeat Hire Rate

Embedded Expert & PCB designer

Thank you visit my profile page. My main skill is embedded engineering and PCB design and web front-end developer.. I have 10+ years experience in designing embedded system,webservice. Technical area : PCB Design: Altium Desinger, Eagle, Orcad..etc. ARM : Cortex-A Series arm chips such as V3s, S3, A33, A20. Exynos 4412, 4418, RK3399, RK1108 and so on. Embedded Linux Kernel, Drivers, File System MicroChips : ARM Cortex-M, ARM9 chips such as STM32, STM8 ATMEL, PIC, 8051 microchips programming WIFI and Bluetooth : ESP32, ESP8266, nRF52832, nRF840, CC2541 Embedded Communication : UART, SPI, I2C, CAN and so on. USB Drivers : USB-CDC, USB-MSD, USB-WIFI and so on IoT Development : Smart Switch, Smart Lock PCB : High speed signal wiring, Electrical Power Wiring and so on. Web Service: HTML, PHP,Javascript. Thank you.
Freelancer Electronics Engineers China

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Portfolio Items

- Features:
 DC motor control
 3 High current lights switching
 Remote control and monitoring via WiFi
- Tech specs:
 WiFi Module: ESP_12_E
 Interfaces: DC motor, 3 lights
 Programming and Debug: UART
 Boot mode selection: Flash mode/UART download
 Power: DC12V
- Main Skills:
 2-layer PCB design using Altium Designer
 Small size compact design matched in existing case
 High current circuit design
 ESP8266 firmware development
WiFi Motor Control Board
- Features:
 DC motor control
 3 High current lights switching
 Remote control and monitoring via WiFi
- Tech specs:
 WiFi Module: ESP_12_E
 Interfaces: DC motor, 3 lights
 Programming and Debug: UART
 Boot mode selection: Flash mode/UART download
 Power: DC12V
- Main Skills:
 2-layer PCB design using Altium Designer
 Small size compact design matched in existing case
 High current circuit design
 ESP8266 firmware development
WiFi Motor Control Board
- Features:
 2 Boards in 1 case: Main board and Sensor interface board
 Sensor data transmission and remote control via Cellular
 Precise GPS location tracking
 Multiple sensor data collecting and processing
 External DC or solar power charging
 Water resist case for outside operation
- Tech specs:
 Processor: Intel® Edison Compute Module
The Intel® Edison compute module is designed to lower the barriers to entry for anyone prototyping and producing IoT and wearable computing products.
 Skywire™ HSPA+ HE910 Embedded Cellular Modem: NL-SW-HSPAPG (800/850, AWS1700, 1900 & GPS )
 Interfaces: 18 for digital, 6 for analog, 4 for PWM, plus UART, SPI and TWI (I2C)
 Analog Input Pin: 12-bit 1MSPS 8 channel ADC
 3.5mm Stereo Jack: 5 for Decagon 5TE Sensor interface, 2 for standard analog input
 Programming and Debug: USB to UART debug port
 Power: DC 7~15V or 3.7 LiPo battery
 Charging: Solar charge controller, up to 1500mA charge current
 LED: RGB LED
 USB: MicroUSB port fo
Cellular Multi-Sensor Data Controller
- Features:
 2 Boards in 1 case: Main board and Sensor interface board
 Sensor data transmission and remote control via Cellular
 Precise GPS location tracking
 Multiple sensor data collecting and processing
 External DC or solar power charging
 Water resist case for outside operation
- Tech specs:
 Processor: Intel® Edison Compute Module
The Intel® Edison compute module is designed to lower the barriers to entry for anyone prototyping and producing IoT and wearable computing products.
 Skywire™ HSPA+ HE910 Embedded Cellular Modem: NL-SW-HSPAPG (800/850, AWS1700, 1900 & GPS )
 Interfaces: 18 for digital, 6 for analog, 4 for PWM, plus UART, SPI and TWI (I2C)
 Analog Input Pin: 12-bit 1MSPS 8 channel ADC
 3.5mm Stereo Jack: 5 for Decagon 5TE Sensor interface, 2 for standard analog input
 Programming and Debug: USB to UART debug port
 Power: DC 7~15V or 3.7 LiPo battery
 Charging: Solar charge controller, up to 1500mA charge current
 LED: RGB LED
 USB: MicroUSB port fo
Cellular Multi-Sensor Data Controller
- Features:
 2 Boards in 1 case: Main board and Sensor interface board
 Sensor data transmission and remote control via Cellular
 Precise GPS location tracking
 Multiple sensor data collecting and processing
 External DC or solar power charging
 Water resist case for outside operation
- Tech specs:
 Processor: Intel® Edison Compute Module
The Intel® Edison compute module is designed to lower the barriers to entry for anyone prototyping and producing IoT and wearable computing products.
 Skywire™ HSPA+ HE910 Embedded Cellular Modem: NL-SW-HSPAPG (800/850, AWS1700, 1900 & GPS )
 Interfaces: 18 for digital, 6 for analog, 4 for PWM, plus UART, SPI and TWI (I2C)
 Analog Input Pin: 12-bit 1MSPS 8 channel ADC
 3.5mm Stereo Jack: 5 for Decagon 5TE Sensor interface, 2 for standard analog input
 Programming and Debug: USB to UART debug port
 Power: DC 7~15V or 3.7 LiPo battery
 Charging: Solar charge controller, up to 1500mA charge current
 LED: RGB LED
 USB: MicroUSB port fo
Cellular Multi-Sensor Data Controller
- Features:
 2 Boards in 1 case: Main board and Sensor interface board
 Sensor data transmission and remote control via Cellular
 Precise GPS location tracking
 Multiple sensor data collecting and processing
 External DC or solar power charging
 Water resist case for outside operation
- Tech specs:
 Processor: Intel® Edison Compute Module
The Intel® Edison compute module is designed to lower the barriers to entry for anyone prototyping and producing IoT and wearable computing products.
 Skywire™ HSPA+ HE910 Embedded Cellular Modem: NL-SW-HSPAPG (800/850, AWS1700, 1900 & GPS )
 Interfaces: 18 for digital, 6 for analog, 4 for PWM, plus UART, SPI and TWI (I2C)
 Analog Input Pin: 12-bit 1MSPS 8 channel ADC
 3.5mm Stereo Jack: 5 for Decagon 5TE Sensor interface, 2 for standard analog input
 Programming and Debug: USB to UART debug port
 Power: DC 7~15V or 3.7 LiPo battery
 Charging: Solar charge controller, up to 1500mA charge current
 LED: RGB LED
 USB: MicroUSB port fo
Cellular Multi-Sensor Data Controller
Visual Studio 2019
.Net Framework
C# Form Application
USB-SPI/I2C Communication
Desktop Application
ESP32 BLE
BLE-SPP Protocols
BLE application
ESP32 BLE
BLE-SPP Protocols
BLE application
uboot
Several Custom Drivers
MiniGUI Graphics, User Interface
Embedded FileSystem

CPU : S3, V3s, RV1108 and so on
Linux Kernel
uboot
Several Custom Drivers
MiniGUI Graphics, User Interface
Embedded FileSystem

CPU : S3, V3s, RV1108 and so on
Linux Kernel
uboot
Several Custom Drivers
MiniGUI Graphics, User Interface
Embedded FileSystem

CPU : S3, V3s, RV1108 and so on
Linux Kernel
uboot
Several Custom Drivers
MiniGUI Graphics, User Interface
Embedded FileSystem

CPU : S3, V3s, RV1108 and so on
Linux Kernel
Camera : OV2640, GC0308, GC0328
Protocol : MQTT, HTTP-POST
Board : ESP32-Cam

Power : USB power supply
ESP32 Camera Application
Camera : OV2640, GC0308, GC0328
Protocol : MQTT, HTTP-POST
Board : ESP32-Cam

Power : USB power supply
ESP32 Camera Application

Reviews

Changes saved
Showing 1 - 4 out of 4 reviews
Filter reviews by: 4.6
$2,550.00 CAD
Xianghu is very versatile and was able to help us with our project effectively. He was able to develop or fix the firmware for the following: 1) OV5640 camera for Allwinner A64 processor 2) GT911 based touch panel for Allwinner A64 processor 3) A light sensor for an STM32 family processor 4) A camera ON led indicator for the STM32 processor
Electronics Microcontroller Arduino Firmware
U
Flag of Salman Q. @Umbrelasmart
9 months ago
5.0
$20.00 USD
Excellent professional, good communication I recommend it to everyone.
Electronics PCB Layout PCB Design and Layout
User Avatar
Flag of Wellington F. @tomfernando26
10 months ago
4.6
$10.00 USD
Xianghu M delivered on time and is eager to please.
PCB Layout
User Avatar
Flag of Johan S. @endstreet
1 year ago
5.0
$3,397.00 AUD
Very professional and understanding. Our company will continue to use Xianghu for all our projects.
Electronics Electrical Engineering PCB Layout Circuit Design PCB Design and Layout
S
Flag of Ross J. @SpeedSigns333
1 year ago

Experience

Embedded System Engineer

Beijing FCONRR Co, Ltd
Aug 2006 - Sep 2012 (6 years, 1 month)
I have worked as embedded system engineer.

Education

Bechalor of Computer Science

Beijing Institute of Technology, China 2002 - 2006
(4 years)

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Top Skills

Electronics 3 PCB Layout 3 PCB Design and Layout 2 Microcontroller 1 Electrical Engineering 1

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