yinhui z.

Welcome to my Upwork profile! Thanks for taking the time to review my work. I hold a Master’s degree in Electronic Engineering from UESTC, with almost 8 years of embedded R&D experience. Currently I serve as Embedded Technical Manager at a publicly listed robotics firm, leading development for UWB high-precision positioning products and quadruped robot (robot dog) embedded systems. During my career, I’ve delivered a full lineup of wireless IoT & positioning projects: UWB TDOA/AOA RTLS solutions based on DW1000 / NRT81850 for multi-tag high-precision tracking GPS+BLE ultra-low power indoor-outdoor asset trackers & compact pet wearables Quadruped robot firmware: motion control, sensor fusion and wireless communication implementation My core skill stack covers UWB, BLE, WiFi, LoRa, NB-IoT, CAT1, plus mainstream MCUs including Nordic nRF, STM32, ESP32, GD32 and AT32. I also operate an IoT studio to provide full-stack hardware & firmware custom development. A key cost-saving benefit for your project: Chinese domestic semiconductors (GD32, AT32, domestic sensors/GPS modules) offer equal or better performance than imported chips at under 50% of the cost. Reach out anytime to share your project details or technical concerns. I’m ready to build stable, cost-efficient embedded solutions to support your business goals!