Haiyan Z.

I am an experienced embedded hardware and firmware engineer specializing in high-performance, low-power and compact device development with over 10+ years.
My expertise covers a wide range of embedded processors and communication interfaces, as well as advanced signal and sensor integration.

Key Skills:
- Embedded processors: STM32, ESP32, TMS32, DM3730, DA14583, LoRa, nRF52, Arduino, Atmega, PIC, RAK4, SIM7
- High-speed routing up to 24 Gbps PCIe, SDI
- Memory interface: SRAM, DDR, DDR2, DDR3, DDR4
- Communication: PCIe, SATA, HDMI, Ethernet, USB, UART, SPI, I²C, CAN, RS485/422, RS232C
-Wireless: Bluetooth, Wi-Fi, Z-Wave, Zigbee, RFID
Sensor integration: ECG, PPG, HRM, SPO₂, CO₂, Temperature, PIR, Touch, Pressure
- Simulation tools: MATLAB, Proteus, Multisim, HyperLynx.

My Advantages
- Stable and reliable design
- Fast and precise development
- Deep industrial understanding
- Safety and ergonomic awareness
- Cost-effective manufacturing insight
- Strong collaboration experience
- High-quality prototype to product
- Commitment to perfection

Over a decade of successful embedded design experience, completing numerous projects across industrial, medical, and IoT applications.
Proven ability to deliver top-quality results in minimal time through strong technical insight, practical design sense, and effective client collaboration.