Hire the Best RFID Programmers in Rawalpindi, PK

I am a highly skilled Electronics Engineer specializing in embedded systems, PCB design, FPGA development, power electronics, and IoT solutions. With years of hands-on experience, I have successfully developed cutting-edge products and prototypes, ranging from smart automation systems to advanced power management solutions. My expertise lies in designing highly efficient, optimized, and scalable electronic systems that meet industry standards and real-world challenges. I am proficient in microcontroller-based system design, hardware prototyping, circuit simulation, wireless communication, and FPGA-based processing using Verilog, ensuring that my solutions are both technically sound and commercially viable. Whether it's IoT devices, power management solutions, industrial automation, or FPGA-based digital processing, I can take projects from concept to completion with precision and innovation. 🚀 Areas of Expertise 🔹 Embedded Systems & Firmware Development I have extensive experience in developing embedded systems for industrial, consumer, and automation applications. My expertise includes: ✔️ Programming microcontrollers such as ESP32, STM32, ATmega, PIC, and MSP430 using C, C++, Python, and assembly ✔️ Firmware development using Arduino, ESP-IDF, STM32 HAL & CubeMX, FreeRTOS, and Keil ✔️ Real-time data processing, sensor interfacing, and actuator control ✔️ IoT-based automation, integrating Blynk, MQTT, ThingsBoard, and Ubidots for cloud-based monitoring and control ✔️ Developed an ESP32-based wireless music transmission system powered by wireless charging 🔹 PCB Design & Hardware Development I have designed complex multi-layer PCBs optimized for performance, power efficiency, and manufacturability. My PCB expertise includes: ✔️ Schematic design and PCB layout using Altium Designer, KiCad, Eagle ✔️ High-speed PCB design for communication and digital processing applications ✔️ Power-efficient PCB routing, thermal management, and noise reduction techniques ✔️ Hardware debugging and optimization for efficient performance ✔️ Designed a PIC-based CAN Bus Controller for automotive and industrial automation ✔️ Developed a 5V 0.8A Tower Communication Light Module using a 555 Timer, controlling 80 LEDs with optimized current regulation 🔹 FPGA & Digital System Design (Verilog & Spartan 3 FPGAs) I have extensive experience in FPGA-based processing, real-time digital signal control, and high-speed logic design. My FPGA skills include: ✔️ Programming in Verilog for Spartan 3 FPGAs ✔️ Digital circuit design including adders, multiplexers, ALUs, and custom logic controllers ✔️ Real-time data processing and parallel computing architectures ✔️ Developed high-speed digital processing modules for embedded applications 🔹 IoT & Wireless Communication I have worked extensively on smart IoT solutions, enabling real-time wireless communication and remote control. My IoT expertise includes: ✔️ ESP32-based Bluetooth & WiFi communication for seamless device integration ✔️ LoRa, Zigbee, RF, and MQTT-based wireless automation ✔️ Smart home automation systems using Blynk, MQTT, and Firebase ✔️ Cloud-based monitoring and control with ThingsBoard and Ubidots 🔹 Power Electronics & Battery Management Systems I have designed high-efficiency power electronics solutions for industrial applications, battery management, and energy optimization. My power electronics expertise includes: ✔️ Designed a 12V Smart Battery Management System (BMS) based on ATmega and ESP32, featuring: 🔹 Real-time battery health monitoring 🔹 State of Charge (SOC) prediction 🔹 Overvoltage, undervoltage, and temperature protection ✔️ Developed a high-efficiency power regulator card (60V to 3.3V conversion) for embedded systems ✔️ Worked on solar energy optimization and high-efficiency power converters 🔹 Industrial & Consumer Automation Projects I have designed fully automated solutions for industrial and home automation, including: ✔️ Smart Geyser Controller with: 🔹 Automated temperature control 🔹 Overload, Overvoltage, Low Pressure, and High Pressure Detection 🔹 Auto-reset functionality (5 times reset for fault verification, requiring manual reset for final faults) ✔️ Wireless Audio Transmission System using ESP32 & Bluetooth, powered by wireless charging ✔️ Smart light dimming modules for commercial and industrial lighting applications 🎯 Why Work With Me? ✔️ End-to-End Development Expertise – From schematic design and PCB layout to firmware development and system integration ✔️ Efficient & Optimized Designs – I ensure low power consumption, efficient routing, and reliable performance ✔️ Innovative & Problem-Solving Approach – Finding creative solutions to complex hardware challenges ✔️ Quality Assurance & Testing – Ensuring reliable, scalable, and manufacturable designs ✔️ Collaboration & Documentation – Delivering comprehensive project documentation and design files

Embedded systems engineer and hardware designer with 10+ years turning product ideas into manufactured electronics, from schematic and multilayer PCB design in Altium to firmware on STM32, nRF52, ESP32, and FPGA/Zynq platforms. I build wireless and IoT products using BLE, LoRa, and Zigbee, and I've delivered hardware for industrial, automotive, medical, and aviation-grade applications, including ATEX/explosive-zone rated designs. I have taken two of my own product designs from prototype through to full production runs. One scaled to 1,000+ units and another to 100+ units, with me handling everything from board design to manufacturing coordination along the way. 𝗪𝗵𝗮𝘁 𝗜 𝗱𝗲𝗹𝗶𝘃𝗲𝗿 𝗲𝗻𝗱-𝘁𝗼-𝗲𝗻𝗱: System architecture and component selection, schematic and PCB layout/routing (up to 10 layers, mixed-signal and high-speed interfaces), prototyping and validation of boards with hundreds of SMD components, and embedded firmware/driver development in C/C++ and Verilog running on FreeRTOS, Zephyr, and other RTOS. I also support feasibility studies, cost estimation, and turnkey manufacturing coordination with PCB fabs, suppliers, and test labs, plus PCB reverse engineering and reviving obsolete hardware. 𝗠𝗖𝗨/𝗦𝗼𝗖 𝗲𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲: STM32, Nordic nRF52/nRF9160, TI wireless MCUs, ESP32, Renesas, and Xilinx/Altera FPGA/CPLD/Zynq SoC. If you need a hardware or firmware partner who can take a project from concept through certified, manufacturable product, let's talk about what you're building.

I’m an experienced Embedded Systems and Electronics Engineer with a strong background in PCB design, firmware development, and product prototyping. I specialize in building reliable, cost-effective IoT and consumer electronics hardware, from concept to production. 🔧 Core Skills & Platforms PCB Design & Hardware Engineering • Tools: Altium Designer, KiCad, EasyEDA and Eagle Cad • Capabilities: o Electronics circuit Schematics Desinging o Rigid and flex PCBs o Experience with flex/FPC PCBs, High Speed and high-current and RF layout o EMI/ESD protection, ground plane optimization, RF shielding techniques o BOM preparation and cost-effective component sourcing o Reverse engineering of hardware/firmware for legacy or competing products o In-house prototyping, testing, troubleshooting, and validation • Microcontrollers: o ESP32 (including S2, S3, C3 and all other variants) o STM32 (F0/F1/F4 series) o nRF52/nRF5340 (Nordic BLE SoCs) o ATmega/ATtiny series (AVR family) o Raspberry Pi (Zero, 3, 4, CM4) • Communication Protocols: o UART Communication o I2C communication o I2S communication o SPI Communication o Can Bus Communication o Mod Bus Communication o WIFI-Communication o Bluetooth Communication o RF Communications • Wireless Hardware Skills: o Cellular (GSM/LTE/NB-IoT): Quectel (e.g., EC200U, BG95), SIMCOM (e.g., SIM800, SIM7678SA, SIM7600) – applied in vehicle tracking systems with GPS and cloud integration. o LoRa: EBYTE E22/E32 modules for motion tracking in local mesh networks up to 5KM. o Wi-Fi/Bluetooth: Advanced development with ESP32 for WIFI-Meshing, Wi-Fi sniffing, BLE advertising, and geofencing applications. o Optical Communication: Long-range MCU-to-MCU communication using modulated IR/LED systems for reliable data transfer in isolated environments. ________________________________________ 🧠 Sensor Integration & Interfaces • Motion & Environmental: o Accelerometers (LIS3DH, MPU6050), gyroscopes, and ultrasonic sensors for obstacle detection, fall detection, and gesture control. o IR sensors, flame sensors, and ultrasonic modules for object detection and safety systems. o Humidity, pressure, smoke, gas, and temperature sensor for environmental control. • Biometric & Weight Measurement: o Fingerprint modules (R502, AS608), optical pulse sensors (MAX30100/30102) o Load cells with HX711 for weight measurement • Optical communication: o Light sensors, photoresistors, and optical data transmission between MCUs over long-range using custom protocols ________________________________________ ⚡ Power System Design • Battery Management: o Lithium-ion/polymer charging circuits with fuel gauges o Low-power modes, deep sleep implementation, and wake-on-interrupt designs o Priority-based power distribution for shared charging between multiple devices • DC/DC Converters & Power Paths: o Buck, boost, and buck-boost converters for 12,9V, 5V, 3.3V, and custom rails o Reverse polarity protection, TVS diodes, inrush current limiting ________________________________________ 🔌 USB Hub Development • USB 2.0 and 3.1 Hub Designs: o High-speed routing with proper impedance matching o Switchable data lines for host/device switching o USB-PD charging with smart current limiting and role negotiation o USB power control with load switches and fault detection 🧩 One-Stop Hardware Solution I offer a complete hardware development service, including: • Component selection and sourcing from trusted Chinese and global vendors • BOM optimization for cost and lead time • Ordering PCB & PCBA from vetted manufacturers with fast turnaround • Testing, QA, and verification of assembled hardware • Troubleshooting & field debugging • Firmware reverse engineering and porting ________________________________________ If you're looking for a highly versatile embedded systems expert with hands-on experience in both firmware and hardware — from an idea to working Product — I'm ready to support your product from prototype to production.

I specialize in embedded firmware and PCB development for IoT, industrial automation, wireless devices, and microcontroller-based products, as well as software development. I help startups, product teams, and hardware companies build reliable embedded firmware and PCB solutions for real-world products, along with software Development. My core work includes STM32, ESP32, Arduino, FreeRTOS, Modbus, RS485, CAN, BLE, Wi-Fi, MQTT, IoT gateways, sensor integration, PCB schematic/layout review, and firmware debugging. I can work on both sides of an embedded product: firmware and hardware. Clients usually hire me when they need help with: ✅ Firmware development for STM32, ESP32, Arduino, PIC, AVR, and nRF52 ✅ Debugging unstable firmware, communication issues, sensor errors, and hardware faults ✅ Modbus RTU/TCP, RS485, UART, SPI, I2C, CAN, BLE, Wi-Fi, MQTT, HTTP, TCP/IP ✅ PCB schematic review, multilayer PCB layout, Altium/KiCad/EasyEDA support ✅ IoT device development from prototype to working product ✅ Hardware bring-up, testing, documentation, and production-ready fixes ✅ Software and Dashboard Development (Python, NodeJs etc) What makes my work different is that I do not only “write code.” I analyze the full system: schematic, power, PCB layout, firmware architecture, communication timing, logs, and real hardware behavior. This helps find the actual root cause instead of only applying temporary fixes. My workflow is simple: Review your requirements, schematic, code, logs, and hardware setup Identify risks, missing details, and possible failure points Build or fix the firmware/hardware step by step Provide tested code, clear documentation, wiring diagrams, and handover files I have worked on embedded systems involving industrial controllers, IoT devices, wireless communication, custom PCBs, automation systems, sensor-based devices, and microcontroller firmware. If you need an embedded engineer who can understand both firmware and hardware, communicate clearly, and help move your product forward, I can help. Send me your project details, schematic, code, or issue description, and I’ll suggest the best practical next step.

I am a Control & Embedded Systems Engineer specializing in PLC automation, STM32/ESP32 firmware, and custom PCB design. With 10+ years of experience, I deliver end-to-end product development—from concept and circuit design to embedded firmware and final working systems. I focus on building reliable, production-ready solutions for industrial and commercial applications. Core Expertise ✔ PLC Programming (Siemens TIA Portal, WinCC) ✔ HMI Development & Machine Automation ✔ Embedded Systems (STM32, ESP32) ✔ Custom PCB Design (Altium Designer, up to 14 layers) ✔ Communication Protocols: Modbus RTU, Modbus TCP/IP, RS485, RS232, CAN, SPI, I2C ✔ Industrial Control Systems & Motor Drives ✔ Python & C++ for automation and testing tools Technical Skills Industrial Automation • PLC, HMI, SCADA • Digital & Analog I/O • Modbus RTU / TCP, Raw TCP/IP Embedded Systems • Register-level programming (C/C++) • RTOS, DMA, UART, SPI, I2C, CAN • GPIO, ADC, DAC, USB Hardware & PCB Design • Circuit & schematic design • Multi-layer PCB design (up to 14 layers) • Industrial-grade design practices What I Can Do for You ✔ PLC & HMI-based machine automation ✔ Embedded hardware & firmware development ✔ Custom PCB design (prototype to production) ✔ Communication protocol integration ✔ IoT & smart device development ✔ End-to-end product engineering Why Clients Hire Me • Complete hardware + firmware + automation expertise • Focus on practical, real-world solutions • Clean, reliable, and scalable designs • Strong communication and on-time delivery If you’re looking for a reliable engineer to develop or improve your system, feel free to message me. I’m happy to discuss your project. FEEL FREE TO CONTACT ME ANYTIME Thanks Sajjad Gakkhar

As a Gold Medalist Electrical Engineer with deep expertise in Embedded Systems, RF Design, and Software-Defined Radio (SDR), I specialize in building high-performance, production-ready solutions—from PCB design and firmware development to deployable web/mobile apps. Key Expertise & Solutions: ✔ Custom Embedded Systems: Full-cycle development (schematic design, PCB layout, firmware, enclosure, testing). ✔ RF & Wireless Solutions: SDR (HackRF, PlutoSDR, USRP),Gnuradio , LoRa mesh networks, 5G/O-RAN, signal processing. ✔ Defense & Security Tech: Proven experience in bullet impact localization (1cm accuracy), drone RF fingerprinting, and surveillance systems. ✔ IoT & Smart Devices: Designed industrial-grade IoT devices (footfall counters, smart switches, security systems). ✔ End-to-End Productization: Led teams to deliver scalable, market-ready solutions with mobile/web apps (Flutter React Flask/Django). Highlighted Projects: 🔹 Sniper Training System (Bullet Impact Localization) Developed R&D setup with triangulation algorithms, achieving 1cm precision. Built custom PCB transmitters (100MHz ADC for shockwave capture) + LoRa mesh networking for real-time coordinates. Designed mobile app for range management and data logging. 🔹 Car Security System (In Production) Developed PCB, firmware, and web dashboard for real-time tracking/anti-theft. 🔹 Automated Footfall Counter Designed PCB sensor node, firmware, and cloud analytics dashboard. 🔹 SDR-Based Transceivers (5G, FM/AM, O-RAN Testing) Implemented HackRF/PlutoSDR + GNU Radio for signal analysis/modulation. 🔹 Drone RF Fingerprinting Built AI-powered RF signature detection for security applications. Why Work With Me? ✅ Full-Stack Hardware-Software Skills: No subcontractors needed—I handle PCB design, firmware (C/C++/Python), SDR, and app development. ✅ Proven Leadership: Managed teams to deliver complex R&D projects on time. ✅ Production Focus: Solutions designed for scalability, certification, and manufacturability. Let’s build your next breakthrough product! Contact me to discuss your project’s requirements Thanks Regards Saad Ali