I develop custom Arduino and ESP32 firmware from scratch for embedded and IoT projects that require reliable, structured, and maintainable code.

This service is intended for projects that do not yet have working firmware or need a clean, well-planned implementation instead of modifying existing code. I focus on full firmware development, starting from logic design and ending with tested, predictable behavior.

What I deliver

• Custom firmware developed specifically for Arduino or ESP32
• Sensor integration including temperature, humidity, ultrasonic, infrared, accelerometer, RFID, location, water, and photodiode sensors
• Stable data acquisition and processing logic
• Clean, modular, and well-structured code that is easy to understand and extend
• Basic testing to ensure consistent and predictable system behavior

How I work

I first understand your project goal, hardware setup, and expected behavior. Based on this, I design the firmware logic, implement sensor handling, and structure the code for clarity and reliability. The final delivery includes firmware that behaves consistently without random values, freezes, or unstable readings.

Expertise used

• Firmware development and microcontrollers
• IoT and automation logic
• Signal processing and data handling
• Testing and validation

Not included

• Small bug fixes or minor edits to existing firmware
• Wi-Fi-only troubleshooting
• (Those are handled in my separate bug-fixing offer.)

To get started, please share the board type, sensors or modules involved, and the expected functionality.

I focus on working firmware, not demo sketches.