Lee Kien is unavailable until Nov 1, 2026

“I’m unavailable, but will be back soon.”

I will program arduino, esp32, stm32, raspberry pi and iot systems

Vietnam

I speak Vietnamese, English

17 orders completed

Master hardware design

I am an experienced professional specializing in electronic circuit design and adept at intricate multi-layer PCB layout, particularly in high-speed applications. With an extensive knowledge base and ...
About this Gig

I am an experienced Embedded Hardware & Firmware Engineer with strong expertise in 

Arduino, ESP8266/ESP32, STM32, Raspberry Pi and IoT systems.


I provide professional embedded programming and system development services, 

from prototype to production-ready solutions.


What I can do:

Arduino programming (UNO, Nano, Mega, custom boards)

ESP8266 / ESP32 firmware (WiFi, BLE, OTA, MQTT, HTTP, HTTPS)

STM32 programming (HAL / LL / bare-metal)

Raspberry Pi (Python, C/C++, GPIO, SPI, I2C, UART)

IoT systems (Cloud, MQTT, AWS IoT, ThingsBoard, custom servers)

Sensor integration (I2C, SPI, UART, ADC)

Motor control, relay, power electronics control

Low power optimization

Debugging & code optimization

Production-ready firmware

Why choose me:

Real hardware & industrial experience

Clean, readable, well-documented code

Follow datasheets and reference designs strictly

Support during testing & debugging

Clear communication and on-time delivery


Please contact me before placing an order 

to discuss your project requirements clearly.

Platform:

STM32

Sensors:

Temperature

•

Humidity

•

Accelerometer

•

Ultrasonic

•

Microphone

Expertise:

Firmware development

•

RTOS

•

Debugging

•

SoC optimization

My Portfolio

Other Electronics Engineering Services I Offer