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TITLE 4-Layer GPS Tracker (ESP32-S3) – Firmware & Hardware Design
Role Firmware & Hardware Developer
Designed a compact, high-precision GPS tracking device using ESP32-S3 with u-blox NEO-M9N GNSS engine and SIM7000G cellular module. Built with ESP-IDF framework. Skills: Cellular IoT, GNSS signal acquisition, low-power optimization for battery-operated devices.
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