Baremetallics

In 2022, I spent almost a year looking for a business partner to start a new venture. During that time, I had a lot of conversations with people about various ideas and even tried out a few. One of the more intriguing ones was a device that could ...

In Zephyr, the typical way to enable logging in your application is by setting LOG_LEVEL and registering the module. This works well for small projects where you have one or two modules. But if your repository has multiple source files or modules,...

I’m currently building a firmware application in Zephyr for the STM32WB55, a microcontroller with limited flash space (~400KB when using MCUBoot). While exploring kernel configuration options, I came across the Link Time Optimization (LTO).

Secure boot is a critical security feature for embedded devices. It ensures that only authorized firmware runs on a device, protecting against unauthorized modifications or attacks. In this post, I’ll explain how secure boot works using a simple e...

Running YOLOv5 on a microcontroller is no small task, given the model’s computational requirements (>20MB). In this post, I’ll share how I successfully ran a simplified YOLOv5 model on an ESP32 microcontroller and optimized it for performance a...