Mohammadreza Heydarian

As an Electrical Engineer, I specialize in designing printed circuit boards (PCBs) and schematics. My role encompasses a broad range of expertise, from certifications and industry standards to practical implementation. Here are the key highlights of my knowledge and skills: • RF PCB and RF module design • Antenna and impedance matching • High-integrity signals (Ethernet, SD card, USB, etc.) • Power supply, as well as analog and digital design • Cost-effective and ultra-low-power design • Design for Manufacturing (DFM, DFA, DFT, BOM) • Creation of precise pick-and-place and assembly files • IoT and sensor integration (pressure, magnetic, ultrasonic, IMU, touch sensors, etc.) • Compliance and standards (FCC, ISED, IPC) • Expertise in advanced technologies (GPS, Li-Fi, haptics, etc.) • Expert in schematic and PCB design and development for machine learning and image processing applications • Expert in schematic and PCB design and development for anomaly detection, motion tracking, AoA & AoD This combination of technical knowledge and hands-on experience enables me to develop sustainable and market-ready hardware solutions.

As an experienced R&D Engineer, I specialize in driving innovation and excellence in the research and development of cutting-edge electronic systems. My role covers a wide range of responsibilities, from concept development to product realization, ensuring that our products meet the highest standards of quality and performance.

During my tenure at Shiraz University of Medical Sciences, I worked as an Electrical Engineer in the Shiraz Medical Engineering Society. My responsibilities included PCB development and training in electronics and PCB design using software tools such as Altium Designer. Responsibilities: • Development and reverse engineering of electronic systems, including concept development, schematic and PCB design, and prototype production • Design and simulation of digital and analog electronic circuits • PCB layout design and manufacturing of multilayer electronic circuit boards • Troubleshooting electronic assemblies • Providing training on electronic software applications such as Altium Designer and Proteus • Guiding and leading engineering project teams In this role, I gained valuable experience in hardware design, instructional training, and project management within the field of medical engineering.

I worked remotely for an engineer for three months, during which I handled the following tasks: • Schematic design in Altium Designer • Design of high-frequency PCBs • PCB development within the Altium Designer environment • Deepening my knowledge of Altium Designer • Introduction to IPC standards This period was extremely valuable to me, much like an internship, as I gained significant knowledge and experience in PCB design.

I participated in a course with the following objectives: • Training and working with measurement instruments (multimeter, oscilloscope) • Training and working with power supplies • Identification of analog and digital electronic components • Diagnosing faults in electronic components • Circuit analysis and troubleshooting of electronic circuits • Introduction to logic gates and circuits • Simulation of electronic circuits using software and circuit design (Altium Designer, PSpice, Proteus, etc.) • PCB etching and working with etching solutions • Assembly and soldering • PCB design and drafting This course provided me with valuable practical and theoretical knowledge in electronics and PCB technology.

As a dedicated medical technology engineer, I have successfully developed and implemented various medical devices using Arduino Uno, ESP8266, and specialized modules. Here are some notable projects: 1. Pulse Oximeter with MAX30100 and Arduino Uno: • Developed a reliable pulse oximeter for measuring oxygen saturation (SpO2) and heart rate. • Used the MAX30100 sensor module in combination with Arduino Uno. 2. Advanced Pulse Oximeter with NodeMCU ESP8266: • Optimized pulse oximeter functionality by integrating NodeMCU ESP8266. • Added an OLED display for real-time SpO2 and heart rate monitoring. • Connected to the Blynk app for remote monitoring. 3. High-Precision Pulse Oximeter with Arduino Uno and MAX30102: • Developed a high-precision pulse oximeter using the MAX30102 sensor module. • Optimized circuit design for reliable SpO2 measurements. 4. Heart Rate Measurement with Arduino Uno and KY-039: • Designed a heart rate monitor using the KY-039 sensor module. • Applied signal processing techniques for accurate heart rate data acquisition. 5. Contactless Thermometer with MLX906146-DAA Sensor: • Developed a non-contact thermometer based on the MLX906146-DAA infrared temperature sensor. • Ensured precise temperature measurements without physical contact. These projects highlight my expertise in hardware design, sensor integration, and practical implementation in the medical field. I am committed to advancing medical technology through innovative solutions.

During my bachelor's studies, I led a course titled "Design and Simulation of Electronic Circuits in OrCAD." In this course, I taught the following circuit designs: 1. Fundamentals and introduction to OrCAD 2. Adding libraries to OrCAD 3. Connecting diode circuits and plotting their characteristic curves 4. Introduction to half-wave and full-wave rectifier circuits 5. Explanation of single-stage, multi-stage, and Darlington circuits 6. Training on inverting, non-inverting, differential, and integral operational amplifier circuits This course provided comprehensive insights into circuit design and simulation with OrCAD, equipping participants with a solid foundation in electronics and its applications.