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I will fix and develop esp32 pcb firmware and embedded hardware

China

I speak Chinese, English

Embedded Hardware and Firmware Developer

I build and debug small embedded hardware projects where the circuit and firmware must work together. I work with ESP32/ESP32-S3, sensors, relays, motors, RS485, audio input, custom PCBs, and firmwar...
About this Gig

I help with small ESP32 and ESP32-S3 embedded hardware projects where the circuit, firmware, sensors, and control logic need to work together.

I can help you debug or improve projects involving ESP32 firmware, custom PCBs, sensors, relays, motors, RS485 communication, audio input, and simple IoT devices.

I have built practical hardware prototypes, including an AI companion device base with microphone input, sound source localization, smooth S-curve servo motion, local device logic, and educational interaction flows.

This gig is best for:

  • ESP32 firmware bugs
  • Sensor or module integration
  • Relay and motor control
  • RS485 communication issues
  • Small PCB or circuit review
  • Debugging from photos, schematics, logs, or code
  • Improving an early hardware prototype

Please send your idea, schematic, PCB files, photos, code, or error logs before ordering if you are not sure which package fits your project.

Basic is for review and debugging direction.

Standard is for one small firmware or module issue.

Premium is for a small ESP32 hardware and firmware improvement task.

I focus on practical solutions that can be tested step by step.

Platform:

ESP32

Sensors:

Temperature

Humidity

Ultrasonic

Microphone

Infrared

Expertise:

Firmware development

Debugging

Microcontrollers