Hire the Best nRF52 Freelancers
in Pakistan

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 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

I help transform rough product ideas into technically validated embedded and electronic products from early feasibility studies, Proofs of Concept (PoCs), prototypes, and MVPs to production-ready hardware. ⭐ 5+ years of experience | 50+ embedded and IoT systems delivered ⭐ From feasibility assessment and system architecture to component selection, schematic capture, PCB layout, embedded firmware, prototype bring-up, testing, and manufacturing handoff, I provide practical engineering support at every stage of product development. ➤ 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 ✔STM8, STM32, Nordic nRF51, nRF52 and nRF53 ✔ESP12, ESP32, ESP8266, ESP32 S3, ESP32 C3 ✔ TI: CC13xx, CC25xx, CC26xx, CC32xx ✔ AVR: 8-Bit, 32-Bit ✔ 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 (BLE) 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 ✔ battery powered, and low power applications. ➤ 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, nRF52840, 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, Hardware Design, Circuit Design, Design for Manufacturing (DFM), Embedded Firmware, Microcontrollers, Smart Devices, PCB Layout