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Firmware Development

Articles on firmware and embedded software. EETIUM develops firmware for MCUs, RTOS and embedded Linux, and ports bootloaders, Buildroot and drivers (BSP) to the boards we design.

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Secure Firmware Updates for IoT Devices: A Practical OTA Checklist for MCU Products

Firmware updates are essential for modern embedded products, but secure OTA (Over-the-Air) updates must be designed for real-world conditions—unstable networks, power loss, mixed hardware revisions, and long-term maintenance. An OTA flow that “works in the lab” can still cause bricked devices, inconsistent versions, or security exposure in the field. A production-ready OTA system focuses on safety, verification, and repeatability from prototype through mass deployment.
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