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chetansunaskar/README.md

Chetan S Sunaskar — Embedded Firmware Engineer

Firmware engineer working on STM32 and ESP32-S3-based IoT products. I write bare-metal drivers, FreeRTOS tasks, MQTT-TLS clients, and state-machine-driven firmware for time-constrained IoT products. Currently exploring Linux device drivers and Embedded Linux build systems.

Tech stack

Domain Tools
MCUs STM32L073RZ · STM32U0 · ESP32-S3 · ESP32-S2 · BeagleBone Black
RTOS FreeRTOS · NimBLE
Protocols UART · SPI · I2C · CAN · MQTT · BLE GATT
Linux Device drivers (char dev) · Buildroot · GDB · Valgrind
Languages Embedded C · C++ · Python
Build ESP-IDF · CMake · GCC · Makefile
Tools OpenOCD · J-Link · nRF Connect · Wireshark
Education PG-DESD — Sunbeam Institute (CDAC) · B.E. Electrical Engineering

Projects

Repo What it demonstrates
ECUS — Embedded CAN-UDS Diagnostic Stack ISO 14229 UDS · ISO-TP · C11 · 43 tests · ASan/UBSan clean · MISRA-C
Embedded Linux MPU6050 I2C Device Driver Linux kernel module · file_operations · ioctl · device tree · BeagleBone Black
ESP32-S3 Wi-Fi + BLE Coexistence FreeRTOS · NimBLE · ESP-IDF · dual-core task pinning

📍 Pune, India  |  📧 chetansunaskar@gmail.com  |  💼 LinkedIn

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  1. ESP32S3_WIFI_BLE ESP32S3_WIFI_BLE Public

    ESP32 firmware using ESP-IDF and FreeRTOS demonstrating simultaneous Wi-Fi and BLE operation with stable coexistence, event-driven architecture, and RTOS task management.

    C

  2. MPU6050_LINUX_DEVICE_DRIVER MPU6050_LINUX_DEVICE_DRIVER Public

    Production-style MPU6050 Linux I2C character device driver along with Device Tree Overlay and STM32 HAL firmware portfolio project.

    C

  3. ECUS-Embedded-CAN-UDS-Diagnostic-Stack ECUS-Embedded-CAN-UDS-Diagnostic-Stack Public

    ECUS is a pure C11 portfolio project that simulates an automotive ECU diagnostic stack on a normal desktop. It is intentionally software-only: build it with GCC, debug it with GDB or VS Code, and s…

    C 3