Posts

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...

I’ve been working on a multi-threaded C++ app with threads. It’s pretty simple on paper: think of it like a mail service that gets letters (requests) and puts them in a queue. Then there’s a worker thread who picks up the letters and checks if the...

Unit testing helps ensure the reliability of software, especially in embedded systems where failures can be costly. In this post, we’ll cover behavior-driven testing, understanding test size and scope, and how to prepare your system for failures.

I’m starting learing about TinyML a.k.a “Machine Learning for Embedded Systems”, and I’m logging my journey. This post is about how to setup your toolchain, and deploy the “Hello World” on the ESP-EYE.

For my work, I had to read the flash memory from an android device, find the filesystem (f2fs), mount it, and extract some files. In this post, I share how I did. In case anybody needs this information.

Assert is a great tool to find errors, bugs, or unintended behaviors on runtime. If implemented correctly, asserts give developer context information about when and where in the code an issue showed up.

Best practices are methods that have been demonstrated to be effective and can be replicable in other contexts.