Zdjęcie profilowe użytkownika mechatronicsengr
Oznaczenie Pakistan Islamabad, Pakistan
Użytkownik od 10 września 2014
16 - liczba rekomendacji


Online Teraz Offline
I am Embedded System Design and Development Engineer. I have expertise in Microcontroller Programming and development on AVR (ATmega and ATtiny), Arduino and ARM (Cortex M0 and Cortex M4) in C/C++/Assembly Language. I have done - Control of DC motor, Display on LCD and input from Hexpad - RFID Based Factory Automation and Remote Inventory Management. - RFID Based Loyal Card for Loyal Customers. - Bluetooth Communication between MCU and RFID Host. - Vehicle Tracking using GPS and Accelerometer. and a lot more. I have expertise over all communication protocols of Microcontroller: - SPI (Master/Slave) - UART - USART - I2C (Master/Slave). - Ethernet - Wifi - Bluetooth etc.. I am expert in interfacing sensor modules with microcontroller. I believe in providing superb quality provided that the deadlines are met. Moreover, during the course of my project I would keep you updated regarding the status. Service Description: * Wireless Interfaces (ISM Band FSK, OOK, XBee, ZigBee, TI 2.4GHz, Bluetooth, WiFi, etc) * LED lighting control * DC Motor Control and Actuator Control Solutions * Touch Sense * RF Energy Detection Systems * Home Automation systems * Weather Stations (Temperature, Pressure, Humidity, Wind Speed, Positioning, and Ambient Light sensing) * GPS Tracking Systems * USB Based Embedded Products * Power Over Ethernet (POE) Solution * On Board / off board DC/DC Low quiescent current, Linear and Switch Mode Power Supply solutions for embedded applications ----------------------------------------------------- * PCB Design (Printed Circuit Board) * Schematics and Bill of Material * Block Diagram and Design Documentation * Suggesting you PCB and PCBA vendors or managing the PCB and PCBA process. * Part Selection, Parts Sourcing * Manufacturing File generation * High Speed, High Density Multi-Layer PCB Layout * Embedded Software / Firmware design development * 3D Step Models of the PCB for Integration with MCAD tools. * Board Bring-up: Test codes in C/C++. * DSP Design (Digital Signal Processing) * Power / Signal Integrity Analysis * System / Hardware Design -------------------------------- * Circuit Simulation Training using Altium, MultiSim and Proteus * Embedded Firmware Design Training (C/C++, Assembly) * Schematics and PCB Design training
$25 USD/hr
Liczba ocen: 105
  • 94%Ukończonych Prac
  • 93%W Budżecie
  • 90%Na czas
  • 11%Ponowny angaż


Ostatnie oceny

  • zdjęcie użytkownika Mohit J. Project 10262908 has been deleted $850.00 USD

    “Forgot to give feedback. Old Project”

  • zdjęcie użytkownika Royce B. Custom GSM Modem Application $300.00 USD

    “I initially dealt with Khawaja nearly a year ago. Initially he said that project would be completed in approximately 1 month. A year later and after paying him $300 and me purchasing 2 development board (including additonal components - as per his instructions). A year later, he has not shown me anything at all to show that he was working on it. At the same time, I seen him (through his feedback), working on other projects through this entire time. Unbeleivable! Be warned!”

  • zdjęcie użytkownika Fredy E. Design a circuit and enclosure with a mount $3400.00 USD

    “Working with Khawaja was easy and smooth. He delivered on the project as promised. He was easy to work with, accommodating and met all my requirements. I will continue to work with him and will be working on future projects with him. As i had some trust issues due to the previous few freelancers, I explained that to Khawaja and he was accommodating and worked hard to earn my trust. I highly recommend Khawaja as he is very easy to work with.”

  • zdjęcie użytkownika jmartinezcdo GAS STATION WIRELESS SENSOR - HARDWARE DESIGN $250.00 USD

    “He was very suppportive, I did not know many things with which he helped me a lot.”

  • zdjęcie użytkownika Tom D. ESP32 i2s microphone recorder to WAV file to send to an API €400.00 EUR

    “Had a good experience with Khawaja, I would recommend him and hire again!”

  • zdjęcie użytkownika Mohd S. Project 18854497 has been deleted $300.00 USD

    “He is professional and very knowledge about his work.. problem solver.. there is nothing he cant do... also he willing to completed other task that i ask him....recommended for others...”


Embedded System Design and Development Engineer

May 2014 - Aug 2014 (3 months)

- Design and implement software of embedded devices and systems from requirements to production and commercial deployment - Design, develop, code, test and debug system software - Review code and design - Analyze and enhance efficiency, stability and scalability of system resources - Integrate and validate new product designs - Support software QA and optimize I/O performance - Provide post production support - Interface with hardware design and development - Assess third party and open source software - Designs structure and framework to organize embedded software that controls operations of electromechanical subsystems in products, manages test results, provides user interfaces for these products and enables their connectivity with other related systems. - Aligns architecture overall software product design architecture standards to ensure smooth and efficient operation. - Defines design concepts, logic and physical characteristics. - Determines specifications and plans, designs and develops software solutions, utilizing appropriate software and engineering processes. - Creates architecture and development standards. - Coordinates with development project teams from design phase through to prototype development and production release. - Participates in development of new product requirements, features and design. - Actively supports software engineering functional excellence objectives. - Researches and maintains knowledge in emerging technologies and possible applications to the business.

Design Engineer

Jul 2012 - Aug 2012 (1 month)

Project: Prototype for Self Driving Autonomous Car Task: Interfacing of M3 navigation Board with Microcontroller Data acquisition of Sensors and Data Manipulation.


BE Mechatronics

2009 - 2013 (4 years)


Certificate of Completion Workshop on Optimizing Hardware Design & C/Assembly Language Programming for Embedded Systems (2012)

Director General School of Electrical Engineering & Computer Science


Control of 5-Axis Robotic Arm for Pick and Place Operation

Conference Paper


  • Preferred Freelancer Program SLA
  • Numeracy 1
  • US English Level 1

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