can bus , Mqtt, Embedded C, Bluetooth, Https, Freertos, Uart, Http, Git, Rest Apis, Ble, Logic Analyzer, Battery State of Health, Gps, ESP-IDF, Circuit debugging, Arduino Framework, STM32, STM32CubeIDE, Multimeter, Lithium-ion battery systems, Battery Management System, Oscilloscope, Wi-Fi, PlatformIO, ESP32, 4G LTE Modules, ARM Cortex-M, Battery State of Charge, Rs485, Soldering