I will write stm32 and esp32 firmware with freertos, can, or iot

Need firmware that runs reliably on real hardware? I write, debug, and deliver embedded code for STM32 and ESP32 projects, from a single sensor driver to a full multi-peripheral system.

Recent work: an automotive Body Control Module on STM32F4 and ESP32 with dual CAN bus, real-time WebSocket monitoring, and OTA updates.

WHAT I BUILD

STM32, ESP32, Arduino/AVR and Raspberry Pi firmware

FreeRTOS task scheduling and real-time systems

Motor control: BLDC, stepper, DC with PID

CAN bus (single and dual), UART, SPI, I2C, Modbus RTU/TCP, BLE, Wi-Fi

IoT: MQTT, WebSocket dashboards, Firebase, ThingSpeak, Google Sheets

OTA updates, CRC-checked persistent storage

Debugging and fixing existing firmware

WHAT YOU GET

• Clean, commented source code
• Short README with wiring and build steps
• Simulation in Proteus or Wokwi if you don't have the board yet

TOOLS: STM32CubeIDE, PlatformIO, Arduino IDE, Proteus, Wokwi, oscilloscope and logic analyzer.

Message me before ordering with your board, sensors, and what the system should do. I'll confirm scope and timeline first.