M Tahir H.

I’m an Embedded Systems & IoT Engineer with 4+ years of experience in electronics design, PCB design and development, and microcontroller programming. I help clients transform ideas into reliable, production-ready hardware solutions — from concept to working prototype. 🔧 What I Offer 🔹 PCB Design & Prototyping (KiCad, Altium, EasyEDA – optimized for JLCPCB/PCBWay) 🔹 Microcontroller Programming (ESP32, Arduino, STM32, Atmega) 🔹 SBC & Linux Systems Integration (Raspberry Pi, Radxa) 🔹 Firmware Development (C/C++, ESP-IDF, Arduino IDE, Linux setup, Python) 🔹 IoT & Wireless Systems (Wi-Fi, Bluetooth, BLE, LoRa) 🔹 Sensor Integration & Control Systems (motion, audio, automation, robotics) 🔹 Analog & Digital Circuit Design (simulation & testing with Proteus, LTSpice, Multisim) 💡 Why Clients Choose Me ✅ Top Rated Seller on Upwork ✅ Combine Hardware + Firmware expertise — no need for multiple freelancers ✅ Reliable, Scalable, and Production-ready designs ✅ Full deliverables: Code, PCB files, BOM, Documentation ✅ Clear communication and fast turnaround 🏆 Proven Work • Motion Tracking Device: Built with ESP32-C3 + motion sensor, real-time speed calculations, Wi-Fi data streaming. • Industrial Systems: OBD2 interfaces & control logic development • SBC Projects: Raspberry Pi & Radxa hardware/software integration (Custom PCBs and Firmware design) • IoT Home Automation System: ESP32/Arduino-based system with wireless sensor integration for smart control. • Robotic Arm Controller: Arduino-powered automation with custom PCB for motor drivers and sensors. Whether you need a custom IoT device, compact PCB layout, or a complete embedded prototype, I deliver results that are reliable, scalable, and optimized for your needs.