Hire the Best nRF52 Freelancers
in Pakistan

I help startups and companies transform ideas into reliable, production-ready electronic hardware. With 6+ years of experience, I specialize in schematic capture, PCB layout, embedded hardware development, and Industrial IoT solutions for commercial and industrial applications. My expertise covers everything from simple 2-layer boards to complex multilayer and HDI PCBs, always focusing on signal integrity, manufacturability, reliability, and cost-effective production. Core Expertise • Schematic Capture & Electronics Hardware Development • PCB Layout (2-layer, Multilayer & HDI) • Embedded Hardware Development • Industrial IoT Devices & Sensor Nodes • Hardware Debugging & PCB Optimization • BOM Creation & Cost Optimization (JLCPCB/LCSC Ready) • Prototype Validation & Manufacturing Support Technical Experience • ESP32, STM32, Nordic nRF52 Series • LTE / NB-IoT Modules (Quectel, Sequans, u-blox) • RS485, Modbus & CAN Bus Communication • Battery Management Systems (BMS) • Low-Power Battery & Solar-Powered Electronics • Buck, Boost & LDO Power Supplies • RF Layout & Antenna Integration Professional Highlights ✔ Top Rated Plus Freelancer (Top 3% on Upwork) ✔ 100% Job Success Score ✔ 120+ Successfully Completed Projects ✔ $100K+ Earnings on Upwork ✔ 98% 5-Star Client Reviews Development Tools • Altium Designer • KiCad • EasyEDA (Standard & Pro) What You Can Expect ✔ Production-ready PCB layouts ✔ Clean, organized schematics ✔ Complete manufacturing files (Gerber, BOM & Pick-and-Place) ✔ DFM-focused hardware for smooth manufacturing ✔ Clear communication and dependable delivery throughout the project Whether you're developing a new electronic product, upgrading existing hardware, or preparing a prototype for manufacturing, I can help turn your concept into reliable, production-ready hardware.

With over 13 years of experience in PCB designing, hardware development, and component sourcing, I have successfully designed and implemented a wide range of projects. My expertise spans various domains, including FPGA-based systems, BLE (Bluetooth Low Energy), IoT (Internet of Things), NB-IoT (Narrowband Internet of Things), and power supply circuits. Key Highlights: - **PCB Design**: Proficient in creating intricate PCB layouts, including high-speed, differential pairs, and RF track and antenna routing. - **Layer Stack-Up**: Accomplished designs with up to 16 layers, ensuring optimal signal integrity and performance. - **EDA Tools**: Adept at using industry-standard EDA tools, including: - **Altium Designer**: Leveraging Altium's comprehensive suite for schematic capture, PCB layout, and 3D visualization. - **Autodesk Eagle and Eagle 360**: Familiar with Eagle's user-friendly interface and cloud-based collaboration features. - **Mentor Pads9.5 and Mentor Graphics PADS Pro VX.2.10**: Experienced in constraint-driven design and signal integrity analysis. - **Orcad Allegro 17.2**: Proficient in complex PCB designs using Cadence's powerful toolset. - **KiCad**: Skilled in open-source PCB design with KiCad, benefiting from its community-driven development. - **PCBweb, EasyEDA & Fritzing**: Versatile in using online platforms for various design requirements. - **MCUs and Processors**: Proficient with various microcontrollers (MCUs) and processors, including: - STM32 family (e.g., STM32F4, STM32H7) - Atmega series (e.g., Atmega328P) - PIC microcontrollers (e.g., PIC16, PIC18) - ARM Cortex-M series (e.g., Cortex-M0, Cortex-M4) - ESP8266 and ESP32 - Raspberry Pi (ARM-based) - Intel x86 processors (e.g., Core i7, Xeon) - AMD Ryzen processors - **FPGA Expertise**: Versed in designing for various FPGA families, tailoring solutions to project-specific requirements. - **Bluetooth Low Energy (BLE)**: A wireless, low-power communication standard for IoT devices. - **Global Navigation Satellite System (GNSS)**: Satellite-based positioning systems (e.g., GPS, Galileo) for location tracking. - **Narrowband IoT (NB-IoT)**: Cellular technology designed for low-power, wide-area IoT applications. - **Quality of Service (QoS)**: Ensuring reliable and predictable performance in IoT networks. PER hour rate for 2 Layer PCB=$10 PER hour rate for 4 Layer PCB =$20 PER hour rate for 6 Layers PCB=$25

Senior Embedded Systems Engineer | IoT Developer | Wearable Technology Specialist | PCB Design Expert Your Trusted Partner for End-to-End Embedded Solutions: Delivering Production-Ready Hardware and AI-Integrated Systems in Weeks, Not Months. With 5+ Years of Expertise and 50+ Successful Projects in Wearable Tech, Industrial IoT, and Custom PCB Design. **100% Job Success Score | Same-Day Response Guarantee ** My core expertise includes: - Custom PCB Design & Rapid Prototyping - Wearable Technology Development (Medical Devices, Fitness Trackers, Smart Textiles) - Low-Power Firmware Development (C/C++/Python) for ESP32, STM32, Raspberry Pi, nRF52840 - TinyML & Edge AI on Microcontrollers (TensorFlow Lite, Edge Impulse, Scikit-learn) - Industrial IoT & Wireless Connectivity (BLE, LoRa, Zigbee, Cellular) - Cloud Integration & Data Management (AWS IoT, Google Cloud, MQTT, REST APIs) I don't just code—I architect scalable, energy-efficient, intelligent embedded systems that drive real business value. 💡 What I Deliver: Comprehensive Full-Cycle Development ✅ 1. Wearable Technology & Medical Devices - FDA-Compliant Wearables (ECG Monitors, Fitness Trackers, Thermoelectric Coolers, Health Sensors) - Ultra-Low Power Optimization for 3x Extended Battery Life - Flexible PCB Designs for Comfortable, Durable, Wrist-Worn Devices - Biomedical Signal Processing with Real-Time Analytics and AI Integration ✅ 2. End-to-End IoT Solutions From Single-Node Sensors to Scalable Networks: - Firmware in C/C++/Python (Bare-Metal, RTOS, Linux-Based) - Secure Cloud Connectivity (AWS IoT, MQTT, WebSockets) - Custom Real-Time Dashboards for Data Visualization (Grafana, InfluxDB) ✅ 3. Custom PCB Design & Prototyping High-Performance, Manufacturable PCBs Tailored for: - Low-Power Wearables and Medical Devices - Industrial Sensor Nodes with IP67/IP68 Ratings - RF/Wireless Systems (BLE, LoRa, Cellular) Tools: Altium Designer, KiCad, Eagle, Fusion 360 Capabilities: - Multi-Layer Designs (4+ Layers) with Impedance Control - DFM/DFA Optimization for Seamless Mass Production - Rapid Prototyping via 3D Printing and CNC Milling ✅ 4. TinyML & Edge AI Deployment Machine Learning on Resource-Constrained Devices for: - Predictive Maintenance (Vibration, Thermal Anomaly Detection) - Smart Sensors (Voice Recognition, Motion Tracking, Environmental Monitoring, Biometrics) - AI-Enhanced Wearables for Real-Time Health and Fitness Analysis Tech Stack: TensorFlow Lite, PyTorch, Edge Impulse, Scikit-learn ✅ 5. Python for Embedded Systems Leveraging Python Beyond Firmware: - AI/ML Model Training & Deployment (TensorFlow, PyTorch) - Automated Testing Frameworks (PyTest, Robot Framework) - Data Analysis & Visualization (Pandas, Matplotlib) - Medical Device Validation and Clinical Testing Protocols 🚀 Proven Project Portfolio: From Concept to Market Launch 🏆 AI-Powered Sports Tracker (TinyML + ESP32) | $12,000 Budget Challenge: Accurate Real-Time Swing Analysis for Baseball Training Solution: Deployed CNN Model on ESP32 with 98% Accuracy and IR Beam Detection Integration Impact: Accelerated Product Launch by 3 Months, Boosting Client Competitiveness 🏆 Thermoelectric Wrist Cooler (Wearable Tech + PCB Design) Challenge: Efficient Cooling in Compact, Low-Power Form Factor Solution: nRF52840 MCU with Peltier Module, Custom Flexible PCB, and Thermal Management Impact: Extended Battery Life by 200%, Enabling All-Day Comfort for Users 🛠️ Technical Stack - Hardware: ESP32, Arduino, STM32 (U5/H7/F4), nRF52840, Raspberry Pi - Software: C/C++, Python (Embedded & ML), Rust - AI/ML: TensorFlow Lite, PyTorch, Edge Impulse, Scikit-learn - Cloud: AWS IoT Core, Google Cloud IoT, InfluxDB, Grafana - PCB Tools: Altium Designer, KiCad, Fusion 360, LTspice 🌟 Why Clients Choose Me for Embedded Systems, IoT, and Wearable Projects ⚡ One-Stop Solution Provider - Eliminate the Need for Multiple Specialists: I Handle Schematic Design, PCB Layout, Firmware, AI Integration, Cloud Setup, and Mobile Apps ⚡ Demonstrated Reliability - 100% On-Time Delivery Across 50+ Projects - Zero Failed Prototypes Through Rigorous Simulations and Testing - Clean, Documented Code with Git Version Control for Easy Maintenance ⚡ Exceptional Communication & Support - Same-Day Responses (Within 6 Hours) - Weekly Milestone Reviews with Video Demos and Progress Reports - Comprehensive Technical Documentation Included - 90-Day Post-Delivery Warranty with Ongoing Consultation 🔥 Ready to Bring Your Embedded Vision to Life? Schedule a FREE 30-Minute Strategy Session Today, Including: -Technical Feasibility and Risk Assessment -Customized Timeline with Milestone Deliverables -Tailored Technology Stack Recommendations -Cost-Saving Strategies and ROI Projections Available Now for New Projects—Guaranteed Working Prototype in 2-3 Weeks. 👉 Click "Invite to Job" or Message Me to Get Started!

✅I am a passionate, precise and results-oriented Embedded System Engineer with a focus on electronic systems with deep experience in all practical aspects of product design. I enjoy working on complex and diverse projects with different applications such as industrial, automotive, IoT, and medical sectors. ✅I have worked on projects like Autonomous Robot, Aviation Grade Projects, Gas Metering Devices, Healthcare related Devices, Industrial Grade Devices, Explosive Grade Electronics (Ex Zone, ATEX), etc. ✅Services: • Electronic/Hardware product design, including but not limited to system design, component selection, schematic drawing, PCB layout & routing, reviewing, and troubleshooting. • Prototyping, assembly and validation of boards with up to hundreds of SMD components with their tools and equipment. • Advising on project feasibility, cost estimations. • Arranging turnkey manufacturing, helping with scaling a prototype into mass manufacturing, and dealing with 3rd parties such as PCB plants, component suppliers, test laboratories, machining, and injection moulding shops. • Embedded software with C/C++, Verilog, and Firmware / Driver development. ✅In Hardware Designing I have expertise in following: • Multi-layer PCB design with up to 10 layers • Mixed signal design with high-speed interfaces such as Gigabit Ethernet, USB FS/HS, HDMI, DRAM, LVDS and others. • Analogue design with dedicated IC’s and discrete components. • Digital design with discrete logic gates, microcontrollers of any variety, and FPGA, CPLD, and System On Chip (Zynq 7010/7020) • Rendering of PCBs and assembled products for presentation purposes • Product / PCB Reverse Engineering or giving life to Obsolete Hardware ✅Hands on Experiece of Firmware development for following MCUs: • STM32 MCUs • nRF MCUs nRF52832, nRF52840, nRF9160 • Texas Instruments Wireless MCUs Sub-1 GHz and BLE • ESP32S1, ESP32S2, ESP32S3, ESP32C3 • Renesas M16/C63, Synergy S7G2 • Xilinx/Altera FPGA • Xilinx Zynq SoC • Xilinx/Altera CPLD ✅RTOS: • FreeRTOS • Zephyr • ThreadX • Micrium OS uC OS • TinyOS • RTX

⭐ I am an Embedded Systems Engineer with 5+ years of experience designing embedded hardware, production-ready PCBs, firmware, and IoT devices for industrial, wireless, sensor, and battery-powered applications. I support projects from system architecture and component selection through schematic design, PCB layout, firmware development, prototyping, testing, and manufacturing handoff. ➤ 𝗘𝗫𝗣𝗘𝗥𝗧𝗜𝗦𝗘 ✔ Embedded systems architecture ✔ PCB design and electronic hardware development ✔ Embedded firmware in C and C++ ✔ IoT and wireless device development ✔ Low-power and battery-powered systems ✔ Industrial controllers and sensor nodes ✔ Hardware debugging, testing, and optimisation ➤ 𝗣𝗖𝗕 & 𝗛𝗔𝗥𝗗𝗪𝗔𝗥𝗘 𝗗𝗘𝗦𝗜𝗚𝗡 ✔ Schematic capture and circuit design ✔ Single-layer, double-layer, and multilayer PCB layout ✔ Analog, digital, mixed-signal, RF, and power electronics ✔ Component selection and BOM optimisation ✔ Signal integrity, grounding, thermal, and EMI/EMC considerations ✔ DFM, DFA, and DFT review ✔ Gerber, BOM, CPL, fabrication, and assembly files ➤ 𝗘𝗠𝗕𝗘𝗗𝗗𝗘𝗗 𝗙𝗜𝗥𝗠𝗪𝗔𝗥𝗘 ✔ ESP32, STM32, Nordic nRF52 and nRF53 ✔ Embedded C and C++ ✔ FreeRTOS and Zephyr ✔ UART, SPI, I²C, CAN, RS-485, USB, and Modbus ✔ Sensor, display, motor, and communication integration ✔ Low-power modes, debugging, and hardware bring-up ✔ Real-time control and data-acquisition systems ➤ 𝗜𝗢𝗧 & 𝗪𝗜𝗥𝗘𝗟𝗘𝗦𝗦 ✔ Bluetooth Low Energy and Wi-Fi ✔ LoRa and LoRaWAN ✔ LTE-M and cellular IoT ✔ MQTT, HTTP, and HTTPS ✔ Remote monitoring and wireless sensor systems ✔ IoT gateways and connected industrial devices ➤ 𝗧𝗢𝗢𝗟𝗦 ✔ Altium Designer ✔ KiCad ✔ EasyEDA ✔ STM32CubeIDE ✔ ESP-IDF ✔ nRF Connect SDK ✔ PlatformIO ➤ 𝗜𝗡𝗗𝗨𝗦𝗧𝗥𝗬 / 𝗗𝗢𝗠𝗔𝗜𝗡 ✔ IoT & Smart Devices ✔ Wearables Devices ✔ Industrial Automation ✔ RF & Wireless Systems ✔ Embedded Control Systems ✔ Sensor & Monitoring Systems ➤ 𝗪𝗛𝗔𝗧 𝗬𝗢𝗨 𝗥𝗘𝗖𝗘𝗜𝗩𝗘 ✔ Complete hardware and firmware source files ✔ Organised schematics and PCB layouts ✔ Manufacturing-ready PCB documentation ✔ Clear technical documentation ✔ Prototype testing and debugging support ✔ Support from concept through production handoff ⭐ Share your requirements, block diagram, schematic, PCB files, firmware, or prototype details. I will review the project, identify the main technical risks, and recommend a practical development approach. 𝗞𝗲𝘆𝘄𝗼𝗿𝗱𝘀 Embedded Systems, PCB Design, Firmware Development, Embedded Firmware, Hardware Design, Circuit Design, ESP32, STM32, Nordic nRF52, Altium Designer, KiCad, EasyEDA, Embedded C, C++, FreeRTOS, Zephyr, IoT Hardware, BLE, Wi-Fi, LoRaWAN, LTE-M, MQTT, Power Electronics, Multilayer PCB, Signal Integrity, DFM, Industrial Automation, Sensor Systems, Hardware Prototyping 𝗛𝗮𝘀𝗵𝘁𝗮𝗴𝘀 #EmbeddedSystems #PCBDesign #FirmwareDevelopment #EmbeddedFirmware #HardwareDesign #ESP32 #STM32 #NordicnRF #AltiumDesigner #KiCad #IoTHardware #PowerElectronics #IndustrialAutomation #EmbeddedC #ProductDevelopment

50+ hardware and embedded systems projects delivered, from concept through manufacturing. Full project lifecycle ownership: requirements → schematic → PCB layout → firmware → prototyping → testing → DFM/production handoff. Projects spanning industrial electronics, IoT devices, RF systems, wearables, and battery-powered products. I design and build hardware products that survive real-world contact — not just designs that work in simulation. For 6+ years, I've taken products from a blank schematic to manufactured, field-deployed hardware: industrial electronics, IoT devices, RF systems, and embedded platforms used in real industrial and consumer environments. I work across the full stack — system architecture, PCB layout, firmware, prototyping, and DFM — so you get one engineer who understands how a firmware design decision affects the PCB, and vice versa. If you need someone who can own a hardware product end-to-end, or step into a specific phase (schematic review, firmware bring-up, RF tuning, manufacturing prep), I can help. WHERE I ADD THE MOST VALUE Custom PCB design, 2–12 layers, including high-speed digital and RF layouts EMI/EMC-aware design and Design for Manufacturing (DFM) Embedded firmware in C/C++ for ESP32, STM32, nRF52/nRF53, RP2040, and ARM Cortex-M platforms IoT connectivity: Wi-Fi, BLE, LoRa, GSM/LTE, GPS/GNSS, cloud-connected devices Industrial communication: UART, SPI, I²C, RS485, Modbus, CAN Bus Power electronics: battery management systems (BMS), DC-DC converters, SOC/SOH estimation, industrial power monitoring Prototype-to-production support, including BOM creation and manufacturing handoff RECENT WORK Industrial gas metering system (EVC V5) — redesigned the hardware architecture with RS485, CAN Bus, and Modbus communication, built to meet EMI/ESD protection and hazardous-environment requirements. Ground Penetrating Radar — designed a 100–900 MHz subsurface sensing system built around a high-efficiency Class-E RF power amplifier and custom embedded electronics. EEG smart glasses — developed wearable electronics for brainwave acquisition, signal conditioning, embedded processing, and wireless transmission. Dual-MCU wireless audio platform — low-power architecture combining nRF5340 and ESP32-S3, with BLE, Wi-Fi, secure storage, and advanced power management. Energy monitoring & battery management platform — multi-source monitoring across AC power, solar generation, and battery storage, with SOC/SOH estimation, GSM connectivity, Ethernet, and remote monitoring. High-power RF amplifier — 100 MHz Class-E design delivering up to 1 kW output. Multiple ESP32-based industrial and consumer products — automation, environmental monitoring, sensing, and data acquisition. Aero-Guide robot — autonomous, AI-assisted navigation platform, finalist in a national engineering competition. WHAT YOU GET WORKING WITH ME Clear technical communication from day one — I'll tell you early if something won't scale, won't pass EMC, or won't be manufacturable, rather than letting you find out after fabrication. Deliverables built for handoff: schematics, PCB layouts, Gerbers, BOMs, manufacturing files, firmware, and documentation — organized so another engineer (or your future self) can pick them up. Fast, practical problem-solving when prototypes don't behave as expected. A focus on shipping reliable, buildable hardware — not just a working bench demo. Outside of engineering, I spend time mountain trekking, with expeditions to several major peaks in Pakistan, including base camps of multiple 8,000m mountains. It's where I keep my planning and problem-solving instincts sharp under pressure — skills that translate directly into debugging hardware at 2 am before a deadline. If you have a hardware or firmware challenge — from a rough concept to a stalled prototype that needs fixing — I'd be glad to take a look and tell you honestly what it'll take to get it done right.