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Wikumj
@wikumjck
Embedded Systems Expert: STM32, Arduino, ESP32 Firmware Dev
Sri Lanka
About me
I'm an Embedded Systems Engineer with 3+ years of industry and freelance experience in STM32, ESP32, and Arduino firmware development. I hold a BSc (Hons) in Electronic and Telecommunication Engineering and work full-time in the embedded field, having delivered commercial products including wearable audio and health-monitoring devices. I specialize in sensor integration (I2C, SPI, UART, CAN), FreeRTOS, OTA updates, and IoT connectivity — and I also design PCBs and 3D enclosures, so I can support your product from firmware to hardware. Clean C/C++ code, clear communication, on-time delivery.
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Wikumj
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Embedded Systems & IoT
I will develop esp32, stm32, or arduino firmware for your iot project
