I will develop arduino, esp32, stm32 and raspberry pi embedded firmware

Germany

I speak English, German, Dutch

Certified Electronics Technician

I’m Chang’an, a Certified Electrical Technician specializing in electronics design, PCB development, embedded systems, and firmware. I design circuits and schematics, multilayer, high-speed, RF, rigid...
About this Gig

I develop custom embedded firmware and microcontroller solutions for prototypes and IoT devices.


WHAT I CAN BUILD:

  • Arduino, ESP32, STM32, Raspberry Pi and other microcontrollers
  • Embedded C/C++ firmware
  • Sensor and module integration: temperature, humidity, motion, pressure, ultrasonic, RFID, GPS/location, camera, Lidar
  • UART, SPI, I2C, CAN, USB, Wi-Fi, Bluetooth/BLE and MQTT
  • Driver coding, peripheral control, displays, motors, relays and actuators
  • IoT, automation, monitoring, data logging and connected devices
  • Firmware debugging, testing and optimization
  • RTOS-based embedded systems


I work from schematics, PCB files, block diagrams, datasheets, existing code or hardware. I can adapt firmware to custom boards, modules, board dimensions, connectors and enclosure constraints.


DELIVERABLES:

  • Editable source code and project files
  • Firmware and hardware integration
  • Simulation/testing where applicable
  • Documentation and setup instructions


I focus on reliable firmware matched to your hardware specs. NDA is available for confidential projects.


Send your requirements, schematic or existing code and INITIATE A CHAT.

Platform:

Raspberry Pi

Sensors:

Temperature

•

Humidity

•

Accelerometer

•

Ultrasonic

•

Infrared

Expertise:

Firmware development

•

Debugging

•

Microcontrollers

•

IoT

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