With over 13 years of expertise in embedded systems design and development, I specialize in delivering cutting-edge hardware and firmware solutions across a range of industries. My core competencies lie in: **Key Expertise** • Hardware Design & Development: Specializing in multi-layer PCB design (up to six layers), and leveraging industry-standard tools like Altium Designer, Cadsoft Eagle, and KiCad. • Firmware Development: Proficient in embedded C, C++, Python, and Shell scripting for microcontrollers and microprocessors, with a focus on optimizing performance for real-time systems and IoT applications. • Wireless Technologies Expert: Extensive experience in developing IoT products using WiFi (2.4GHz, 5GHz, 6GHz), BLE, Cellular (2G/3G/4G/LTE, NB-IoT), GPS/GNSS, ZigBee, LoRa, UWB, and more. • Protocols & Interfaces: Deep understanding of I2C, SPI, UART/USART, RS232, RS485, CAN, TCP/IP, J1772, with practical application in wireless communication and sensor integration. • IoT Solutions: Proven track record in delivering IoT-based solutions with seamless integration of wireless modules and sensors, ensuring reliability in real-world applications. • Cross-platform Development: Hands-on experience with various platforms including Raspberry Pi (zero/2/3/4), Beaglebone Black, STM32F, and ESP32, and operating systems like Windows, Linux, and RTOS variants (FreeRTOS, Zephyr, TI-SIMPLELINK). **Specialized in Wireless SoCs** Texas Instruments: CC2530, CC2640R2F, CC2650, and more. Nordic Semiconductor: nRF51822, nRF52840, nRF9160, nRF5340, among others. Espressif: ESP8266, ESP32-S2/S3/C6, with experience in ESP-IDF and Arduino-based development environments. **Advanced Sensor Integration** Proficiency in integrating a variety of sensors, from environmental (temperature, humidity, pressure) to motion (accelerometer, gyroscope), and health-related sensors (heart rate), with a deep understanding of their interface protocols and power optimization. **Evaluation & Development Boards** Experience with a range of development platforms including ESP32, nRF52, Arduino, STM32, Raspberry Pi, and Beaglebone, ensuring versatile project implementation from prototyping to deployment. My experience extends beyond just technical prowess—I bring a problem-solving mindset, a drive for innovation, and a commitment to delivering robust, scalable solutions for next-gen embedded systems.