Hire the Best Serial Port Interfacing Specialists in Lahore, PK

I help startups and companies turn hardware ideas into reliable, production-ready products. With 5+ years of experience, a 100% Job Success Score, and 300+ Upwork hours, I've delivered embedded hardware for industrial automation, IoT, robotics, and medical devices. My expertise spans the complete product development cycle—from system architecture, schematic capture, and multilayer PCB design to embedded firmware, hardware validation, design optimization, and manufacturing support. I work extensively with STM32, ESP32, nRF series, and ARM Cortex-M platforms to develop robust commercial products. Recent projects include ESP32-based motor controllers, STM32 embedded systems, CANopen robotic platforms, industrial interface PCBs, and medical electronics such as dialysis monitoring systems, surgical light sources, irrigation pumps, and fluoroscopic imaging equipment. **Core Expertise** • Embedded firmware development (Embedded C/C++) for STM32, ESP32, nRF, and ARM Cortex-M • Schematic capture and multilayer PCB design using KiCad and Altium Designer • Hardware bring-up, debugging, validation, and production support • CAN, CANopen, UART, SPI, I²C, Modbus, USB, and Ethernet communication protocols • Power electronics, battery-powered devices, motor control, and sensor integration • IoT devices, industrial automation, robotics, and connected embedded products • BOM optimization, DFM, Gerber generation, assembly documentation, and manufacturing handoff I prioritize designs that are reliable, manufacturable, and practical to scale. Whether you need a new product developed from concept, an existing design reviewed and improved, or support with firmware, PCB design, hardware debugging, or manufacturing preparation, I can help move your project efficiently from idea to production.

Self-motivated and innovative Electronic design engineer with more than 8 years of experience in the fields of Electronic product development, Expertise in hardware implementation, and digital design with a wide range of technical skills. Detail-oriented, strong in execution and leadership, and creative in problem-solving. Proficiency in de-budding and troubleshooting circuits and software development. I can assist clients in any of the following areas: ✅Complete end-to-end electronic product design from concept to creation. ✅Circuit design, Schematic capture, PCB design. ✅Signal conditioning and instrumentation circuits for different types of sensors. ✅Active/passive filters, 0 -10V, 4-20mA,ADCs, Op-Amps, and Instrumentation Amplifiers. ✅Microcontrollers, Communication protocols like SPI, I2C, UART, RS485, RS232, MODBUS RTU/TCP. ✅SMPS, Power design, DC/DC Converters, and FETs. ✅Power, analog & digital circuit simulation, and power/signal integrity analysis. ✅High-speed mixed signal, EMI, and noise reduction. ✅Selection of components (ICs, Resistors, Capacitors, etc…) and preparing cost-effective BOM (Bill of Materials) for circuits with ratings and standards. ✅Planning and Assembling of PCB, Electrical, and Mechanical parts to finish the module as a final product ✅Testing and Troubleshooting of PCBs with SMDs and Through-hole devices. ✅Designing IoT and Ethernet circuits. ✅PCB enclosures by using different CAD tools ✅Firmware & android APP development by using different programmable languages. ✅Energy monitor systems and medical devices ✅Process Controller Design. ✅Water Treatment transmitters like Ph, temperature, ORP, Conductivity, and TDS. ⭐⭐⭐ Capability Matrix⭐⭐ ⭐ ✅Microcontrollers ⚡Arduino: UNO, MEGA, NANO, DUE ⚡STM32: STM32H7,Stm32F1,STM32F0,STM32F3,STM32F4,STM32F7 ⚡PIC: PIC12,PIC16,PIC18 ⚡ESP: ESP32, ESP8266 ✅PCB Tools ⚡Altium ⚡DesignSpark ⚡EasyEDA ⚡KiCad ✅Simulation Tools ⚡TINA ⚡LTSpice ⚡Proteus ⚡Matlab ⚡PSpice ⚡Multisim ✅CAD ⚡Fusion 360 ⚡FreeCAD ⭐⭐⭐EXPERTISE⭐⭐⭐ ⚡Electronics Circuit Design ⚡Instrumentation ⚡C/C++ ⚡Power Electronics ⚡ARM Microcontroller ⚡Firmware Development ⚡Arduino Firmware ⚡PCB Design ⚡Analogue Electronics ⚡IoT ⚡ESP32 ⚡Digital Electronics ⚡Amplifiers and filters ⚡Integrated circuits ⚡CAD and enclosure design ⚡Android App Development ⚡BLE ⚡Signal Conditioning ⚡Sensors & Transducer ⚡Simulations and testing ⚡Hardware Design ⚡Debugging circuits ⚡EMI & Noise Reduction ⚡Process Controllers ⚡Ph, Temperature, ORP, conductivity, TSD Sensors If you are looking for skillful hardware & software developer or need help with your electronic design or want to convert your idea into a successful product? Then you are in the right place and I can’t wait to hear from you!

Schedule a Free 30-Minute Consultation I'm a Top Rated Plus Embedded Systems Engineer with 17+ years of experience developing firmware, IoT solutions, and production-ready hardware. I help startups and companies transform ideas into working products—from concept and prototyping to manufacturing. Embedded Firmware Development ► ESP32 (WiFi, BLE, ESP32-CAM) ► STM32, Arduino, Raspberry Pi ► C/C++, Python, MicroPython ► OTA/FOTA Updates & Bootloaders ► MQTT, HTTP/HTTPS, TCP/IP ► LoRa (SX12xx), GSM (SIM800, M95, BG95) Communication Protocols ► UART, SPI, I2C ► CAN, LIN, RS485 ► 1-Wire and custom protocols Hardware & PCB Design ► EasyEDA, Eagle, Proteus ► Single, Double, and Multi-layer PCB Design ► RF, WiFi, GSM, LTE Modules ► PCB Antenna Design ► Manufacturing & Component Sourcing Support What You Can Expect ✔ Clean, maintainable code ✔ Production-ready designs ✔ Strong communication ✔ Reliable project delivery ✔ Long-term support Whether you need a prototype, firmware development, PCB design, troubleshooting, or a complete IoT product, I'd be happy to help. Send me a message and let's discuss your project.

I am a seasoned professional with extensive experience in the field of embedded systems. From bare-metal programming and real-time operating systems (RTOS) to automotive and space applications, I have a deep understanding of the entire spectrum. Whether you need assistance with design and architecture consultation, development or porting services, I am well-equipped to tackle any challenges you may be facing. Over the years, I have had the pleasure of working with a diverse range of clients, delivering successful solutions tailored to their specific needs. Some of my satisfied clients include: - Siemens: Automotive networking stack (TCP/IP, AUTOSAR, Diagnostics) - Microtech: Smart electricity meter (DSP, STM32, TI) -Intive: Driver fatigue detection system (SWC, AUTOSAR, ASPICE) -Wairify: Air purifier (LIN, STM32) - SS: Bootloaders and device drivers (CAN, LIN, UDS, J1939, DoIP) -Knowgas: Tank remote sensing (STM32, CAN, I2C, MBED, ARDUINO) -Reis Informatica: Vehicle tracking system (EFM32, Bootloader, NB-IOT) - Vahaa: Indoor smart garden using ESP32 (ESP32 CE Certification, AWS-IOT) - Suparco: Satellite data-handling subsystem (Infineon, FreeRTOS, CAN) - EvansWerks: Indoor smart lighting system (BLE, RF, Mesh, NRF) - MonasticAcademy: Drum-beat synchronization detection (ESP32, ESP-IDF, ESP-ADF) I take pride in delivering top-notch solutions and providing exceptional support to my clients. If you're struggling with any embedded systems-related issues or require expert guidance, I am here to help you overcome them efficiently and effectively. The Industries I've worked for, include: - automotive, autosar - smart metering - aerospace - Internet of things - Industrial automation, remote sensing - consumer electronics - medical devices - robotics, control systems - silicon devices - telecommunication, internet Over the years, I have worked on the following MCU architectures/chip families: ST: STM32Fx, STM32Gx, STM32Hx, STM32Lx, STM32Ux, STM32Wx TI: TM4C, MSP43x, TMS570, C2000: TMS320, TMS320F28xx NXP: LPCxx, i.MxRT, S32K, iMX8 Nordic: NRF52, NRF53 Microchip: PIC16F, PIC18F, PIC24F, PIC32F, ATmega, 8051 Infineon: XMC1100, XMC4500 Aurix TriCore: TC2xx, TC3xx, SiLabs: EFM32, EFM8, C8051 Renesas: RH850 Espressif: ESP32, ESP32-C3, ESP8266 Others: u-blox, Simcom sim900, Raspberry Pi, Orange Pi Feel free to reach out to discuss your project requirements or explore how we can collaborate on your next venture. My specialties in embedded software, include: Firmware, Device Drivers, RTOS: Nucleus, FreeRTOS, TI-RTOS, Bootloader, Application Software, Digital Signal Processing (DSP), Cryptography: AES, Static Analysis: MISRA, C-Cert, Communication Protocols: I2C, UART, SPI, CAN, LIN, Bluetooth, BLE, WiFi, Ethernet, TCP/IP, TCP, UDP, MQTT, Bare-metal or frameworks: Zephyr, mbed, Arduino framework, LwIP, cycloneTCP. - DoIP, SoAd, SOME/IP, PduR, RTE, Embedded, Embedded Software, Embedded Devices. - Embedded Systems, Firmware, Microcontroller, Operating Systems, RTOS, Bootloader, Cortex-M, ARM, RISC - CAN Bus, UART, LIN, I2C, SPI, BLE, Bluetooth, WiFi, Zigbee, MQTT, CoAP, LoRaWAN, Ethernet, TCP/IP - Embedded C, C++, C#, Real-time Systems, Low-Level Programming, Bare-Metal, Interrupt Handling, OOP (Object-Oriented Programming), Version Control (Git, SVN), Agile Development, TDD (Test-Driven Development), Static Analysis, Traceability, Cross Compilation, GCC, IAR Embedded Workbench, Keil MDK, Eclipse, Code Composer Studio - Hardware Design, System-on-Chip (SoC), Digital Signal Processing (DSP), Sensors, Actuators, Power Management, Analog and Digital Design, Power Electronics, Energy Harvesting, Power Management - AUTOSAR, Automotive Software Architecture, Basic Software Modules (BSW), Communication Stack, Diagnostic Stack, ECU Abstraction Layer, Complex Device Drivers, MCAL, SWC, DLMS, DoIP, ECU, VCU, BMS, ISO26262, ASPICE, ADAS, SOMEIP, J1939, UDS, CANOpen, Transport Layer - IoT, Embedded Networking, FOTA (Firmware Over-the-Air), Middleware, IoT Protocols, AWS IoT, Particle, LoRa (Long Range), NFC (Near Field Communication), RFID (Radio-Frequency Identification), Cellular Networks (3G/4G/5G) - Memory Management, Heap Memory, Stack Memory, EEPROM, Flash - Embedded Security, Cryptography, MISRA, C-CERT, Secure Coding, SIL (Safety Integrity Level), Fail-Safe Design, Redundancy - Embedded Systems Testing, Validation and Verification, Simulation and Modeling, Test Automation, Test Frameworks, Code Reviews, JTAG, Debugging, ISTQB - Software Architecture, FreeRTOS, mbedOS, Zephyr, Arduino Framework - CppUnit, EmbUnit, WireShark, CANoe, CANalyzer, PLIN, PCAN, Bullseye, LATEX, Doxygen - Metering, Industrial Automation, Consumer Electronics, Medical Devices, Smart Mobility, Smart Metering, Energy Metering

I built and design the PCB, write the firmware, model the enclosure, and build the IoT app that controls it. Products I have built are live on Google Play, the App Store, and in the hands of US/EU customers right now. I'm a 𝐒𝐞𝐧𝐢𝐨𝐫 𝐄𝐦𝐛𝐞𝐝𝐝𝐞𝐝 𝐒𝐲𝐬𝐭𝐞𝐦𝐬 & 𝐈𝐨𝐓 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫 with a Master's in Embedded Systems and a Bachelor's in Computer Engineering. I take products end-to-end from PCB design, firmware, enclosure, IoT mobile app, to cloud, so you get one Partner accountable for the whole stack instead of coordinating four of them. 𝐔𝐬𝐞 𝐂𝐚𝐬𝐞𝐬 𝐈 𝐒𝐩𝐞𝐜𝐢𝐚𝐥𝐢𝐳𝐞 𝐈𝐧: ➙ Consumer electronics, smart home devices, connected appliances ➙ Audio and DSP products, Audio/Sound Devices, real-time processing ➙ Stepper motor, CNC Machines, 3D Printers, Stepper Motors, Driver, DC Generators, Energy Harvesting ➙ Smart RGB light control Systems, Hall Effect Systems ➙ Industrial IoT, Home automation, Modbus/CAN gateways, CAN telematics ➙ Medical devices, wearables, monitoring systems, Automotive ➙ Asset tracking, smart agriculture, LoRaWAN sensor networks 𝐓𝐞𝐜𝐡𝐧𝐢𝐜𝐚𝐥 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞: 𝐌𝐢𝐜𝐫𝐨𝐜𝐨𝐧𝐭𝐫𝐨𝐥𝐥𝐞𝐫𝐬 & 𝐒𝐨𝐂𝐬: STM32, ESP32 (S2/S3, A1S Dual-Core, ESP8266), Arduino (Nano, Mega, Mini, Pro, Uno), Nordic nRF52840/nRF5340, AVR (ATmega, ATtiny), PIC16/PIC18/PIC32, Raspberry Pi, Cortex-M0/M0+/M3/M4/M7/M33, Cortex-A53/A72/A76, Cortex-R4/R5/R52, Teensy 4.1, FPGA 𝐅𝐢𝐫𝐦𝐰𝐚𝐫𝐞: Embedded C/C++, MicroPython, ARM Assembly, Verilog/SystemVerilog, VHDL. FreeRTOS, Azure RTOS (ThreadX). Bare-metal, HAL, and LL driver development. STM32CubeIDE, ESP-IDF, PlatformIO, Arduino, CMake, GCC Arm toolchain. 𝐏𝐂𝐁 𝐃𝐞𝐬𝐢𝐠𝐧: Expertise in 2-12 layer boards, rigid & flex, and HDI designs using Altium Designer, KiCad, and Eagle, with a focus on high-speed signal integrity, impedance matching, thermal design, high-current routing, and RF layout including Pi-network antenna tuning. 𝐌𝐞𝐜𝐡𝐚𝐧𝐢𝐜𝐚𝐥/𝐄𝐧𝐜𝐥𝐨𝐬𝐮𝐫𝐞 𝐃𝐞𝐬𝐢𝐠𝐧: Proficient in SolidWorks, Fusion 360, and AutoCAD for injection-molding-ready designs, SLA/FDM 3D printing, IP65/IP67/IP68 waterproofing, and advanced thermal management. 𝐏𝐞𝐫𝐢𝐩𝐡𝐞𝐫𝐚𝐥𝐬 & 𝐁𝐮𝐬𝐞𝐬: I2C, SPI, UART, CAN (CANOpen, J1939), USB HID, PCIe, DMA, PWM, ADC/DAC, I2S/PDM audio, EEPROM/Flash. 𝐂𝐨𝐧𝐧𝐞𝐜𝐭𝐢𝐯𝐢𝐭𝐲: Wi-Fi, BLE 5.x, LoRa/LoRaWAN, NFC/RFID (MiFare, ISO14443), LTE-M, NB-IoT, 4G LTE, u-blox GNSS (M8/M10), RS485, RS232, Modbus RTU/TCP, Ethernet. 𝐈𝐨𝐓 & 𝐂𝐥𝐨𝐮𝐝: MQTT/MQTTS, HTTPS, WebSockets, TLS 1.3, JSON-RPC. AWS IoT Core, Azure IoT Hub, Google Cloud IoT, Blynk, ThingsBoard, Tuya. 𝐀𝐩𝐩𝐬 & 𝐈𝐧𝐭𝐞𝐫𝐟𝐚𝐜𝐞𝐬: Flutter, React Native, React.js, Vue.js, Node-RED, Firebase, PWAs. Qt for Embedded, PyQt5. OLED, TFT, IPS, E-Paper, LED Matrix, 7-Segment, rotary encoders. 𝐒𝐞𝐜𝐮𝐫𝐢𝐭𝐲 & 𝐂𝐨𝐦𝐩𝐥𝐢𝐚𝐧𝐜𝐞: Secure Boot, AES, ECC, OTA updates. Design-for-certification for CE, FCC, EMI/EMC, ESD (IEC 61000-4-2), UL, ISO 9001/13485. 𝐌𝐲 𝐂𝐨𝐥𝐥𝐚𝐛𝐨𝐫𝐚𝐭𝐢𝐯𝐞 𝐀𝐩𝐩𝐫𝐨𝐚𝐜𝐡: ➙ Clear weekly progress updates, often including demo videos, schematics, firmware commits, and simulation results. ➙ Version-controlled deliverables (Git) and meticulously documented, clean code. ➙ Transparent communication regarding progress, challenges, and potential risks. ➙ Strong research-driven approach focused on solving technically difficult problems efficiently. ➙ Open to starting with a paid pilot project before committing to a larger scope. 𝐋𝐞𝐭'𝐬 𝐓𝐚𝐥𝐤 𝐈𝐟 𝐘𝐨𝐮 𝐍𝐞𝐞𝐝 A reliable partner to design a new product from scratch, rescue a stalled hardware project, and control systems, port firmware between MCU families, add IoT/cloud connectivity to an existing device, or build the mobile app and backend that makes your hardware actually useful. Invite me to your Job or send me a message with your product concept, current stage, and what's blocking you.

I Design, Develop, & Mass Produce Electronics / Industrial Products with ↳7️⃣+ 𝒀𝒆𝒂𝒓𝒔 𝒐𝒇 𝑬𝒙𝒑𝒆𝒓𝒊𝒆𝒏𝒄𝒆 ↳ 𝑰𝒏-𝑯𝒐𝒖𝒔𝒆 𝑨𝒔𝒔𝒆𝒎𝒃𝒍𝒚, 𝑻𝒆𝒔𝒕𝒊𝒏𝒈 & 𝑴𝒂𝒔𝒔 𝑷𝒓𝒐𝒅𝒖𝒄𝒕𝒊𝒐𝒏 𝑭𝒂𝒄𝒊𝒍𝒊𝒕𝒚 ↳ 𝑺𝒖𝒑𝒑𝒍𝒚𝒊𝒏𝒈 𝑾𝒆𝒆𝒌𝒍𝒚 𝑺𝒉𝒊𝒑𝒎𝒆𝒏𝒕𝒔 𝒐𝒇 𝑹𝒆𝒂𝒅𝒚 𝒕𝒐 𝑺𝒆𝒍𝒍 𝑷𝒓𝒐𝒅𝒖𝒄𝒕𝒔 🌏 I partner with Enterprises, Tech Innovators, and Entrepreneurs to design, build, and scale smart connected products that seamlessly bridge hardware and software. From IoT devices to intelligent ecosystems, I deliver end-to-end solutions 2x faster by merging unmatchable engineering talent, timezone-aligned execution, and a relentless focus on integration. 𝑾𝒐𝒓𝒌 𝑬𝒙𝒑𝒆𝒓𝒊𝒆𝒏𝒄𝒆: I’ve designed multi-layer PCBs for a variety of processors and systems, including: - Microprocessors: ARM Cortex-M3, Cortex-M4 - Low-power Chips: Nordic nRF52840, nRF5340, nRF52832, ESP32, STM32WL series - System-on-Modules (SoM) and Custom Boards: CM4, Raspberry Pi, Orange Pi, iMX8, Jetson Nano/Xavier/Orin, RK3588, RK3568, RV1126 Rockchip, TI AM6254, and more - High-Speed Designs: USB 2.0, HDMI 2.0, DDR3/DDR4, PCIe, NAND Flash, Ethernet (10/100/1000base-T1), PoE++, and others - Power Supply Designs: DC-DC converters (isolated, flyback, boost, buck), LDOs, and more - Motor Driver Communication Circuits: BLDC, AC servo, DC servo with I/O, ADC, CAN interfaces - Analog Signal Processing Circuits: ADCs, DACs, Audio systems - Communication Protocols: QSPI, I2C, RS485, RS232, CAN, Modbus TCP/IP, RTU, and more - Wireless and IoT: RF, WiFi, Bluetooth (4.0), GSM (3G/4G/LTE), LoRaWAN I have substantial experience in building evaluation kits for various platforms like Arduino, ESP32, ESP8266, STM32, and others. I’ve developed the expertise to translate dimensional drawings into precise Gerber files, ensuring a high level of accuracy in the PCB manufacturing process. 𝐈 𝐚𝐥𝐬𝐨 𝐡𝐚𝐧𝐝𝐥𝐞 𝐛𝐢𝐥𝐥 𝐨𝐟 𝐦𝐚𝐭𝐞𝐫𝐢𝐚𝐥𝐬 (𝐁𝐎𝐌) 𝐜𝐫𝐞𝐚𝐭𝐢𝐨𝐧, sourcing components from reputable suppliers like Digikey, Mouser, JLCPCB, and LCSC. My experience extends to robotics, including the development of Automated Guided Vehicles (AGV), AMRs, vending machines, and 6-axis robotic systems. 𝐊𝐞𝐲 𝐒𝐤𝐢𝐥𝐥𝐬: - Routing Expertise: Clock signals, differential pairs, bus traces, single-ended traces with noise considerations - EMC/EMI Compliance: In-depth knowledge of proper layout techniques for electromagnetic compatibility and interference - Design for Assembly (DFA) and Design for Manufacturing (DFM): Familiarity with PCB manufacturing and assembly processes - Component Theory and Application: Strong understanding of electronic components, datasheets, and schematic designs 𝐅𝐢𝐫𝐦𝐰𝐚𝐫𝐞 & 𝐎𝐭𝐡𝐞𝐫 𝐂𝐨𝐦𝐩𝐞𝐭𝐞𝐧𝐜𝐢𝐞𝐬: - Managing the entire design and procurement process for PCBs, ensuring timely and cost-effective delivery - Excellent problem-solving skills and a proactive, research-driven mindset - Skilled in electrical evaluation, testing, and troubleshooting PCBs - Firmware development in C, C++, and Python, with additional proficiency in QT - UX/UI design for STM32 and Raspberry Pi platforms using Figma and TouchGFX - Familiarity with IoT protocols like MQTT, Thingsboard, AWS, and Blynk 𝐓𝐨𝐨𝐥𝐬 & 𝐒𝐨𝐟𝐭𝐰𝐚𝐫𝐞 𝐏𝐫𝐨𝐟𝐢𝐜𝐢𝐞𝐧𝐜𝐲: - Extensive experience with PCB schematic capture and layout using Altium Designer (versions 18.x, 21.x), KiCAD (Ver 6.x, 7.x), Eagle (9.6.2), EasyEDA, and Altium365/CircuitMarker - Familiarity with simulation tools like OrCAD Capture and PSpice - Skilled in Gerber file inspection with CAM350 (version 12.1) - Proficient in AutoCAD and Autodesk Inventor for supporting design tasks Inbox Your idea, and let me develop it accurately.