Profile image of mechatronicsengr
Flag of Pakistan Islamabad, Pakistan
Member since September 11, 2014
18 Recommendations


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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
$45 USD/hr
112 reviews
  • 94%Jobs Completed
  • 94%On Budget
  • 91%On Time
  • 10%Repeat Hire Rate

Portfolio Items

Recent Reviews

  • image of Ahmed M. Project for Khawaja Muhammad A. $120.00 USD

    “Great Freelancer! Will definitely hire again and recommend him to anyone looking for a reliable freelancer”

  • image of Zoran C. esp32 deepsleep ulp hx711 Arduino €700.00 EUR

    “He delivered on time.”

  • image of Sergiy1234 costumised timer programme for attiny 84mu... £142.00 GBP

    “Very nice person. Openly speaks about what he thinks and can do. Plaasuse to deal with.”

  • image of Dean C. Python or some other programming language that will work with rpi $230.00 USD

    “Thank you for the outstanding work. It was a pleasure working with you. My project was completed exactly how I envisioned it and he was able to help me with the things I didn't understand. I Highly recommend.”

  • image of Patrick C. Project for Khawaja Muhammad A. $25.00 USD

    “He answered my queries well. Very informative and very quick to understand what I was looking for.”

  • image of Michael P. arduino programming. Custom Digital LED clock $850.00 AUD

    “Khawaja is a true professional, understanding and accommodating. He delivered exactly what was agreed upon, and I feel very lucky that he chose to work with me on this project. 10/10 would recommend 10/10 would use again. Thanks for all of your help to deliver this project on time and on budget.”


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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