Embedded SW

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Remote Software Development Without Compromising Quality

At EmTech S.A., we develop embedded software systems in highly demanding environments, where delivery quality depends not only on code but also on strict control over toolchains, build systems, and access to real hardware. In this context, remote collaboration introduces additional complexity: distributed teams must maintain consistency across development setups, integration workflows, and validation infrastructure. To address this challenge, EmTech has built an operational model that enables fully remote embedded development without sacrificing efficiency, reproducibility, or engineering rigor.

February 23, 2026

Embedded

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Design of an acoustic event detection system based on deep learning

This article traces the design and evolution of a deep learning-based acoustic event detection system, from the definition of the problem to its implementation in a real electronic device. Previous experience with acoustic bird detection systems, deployed in remote and energy-constrained environments, had naturally led to a preference for small models and low-power architectures. In that context, autonomy was the dominant variable, and model complexity had to be subordinated to it.

February 19, 2026

Embedded

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Design and evolution of an embedded smart sound detector: from prototype to device

This article traces the evolution of an autonomous sound detector, from an initial functional implementation aimed at validating the concept, to a dedicated hardware design and a cabinet designed for real-world use in the field. Throughout the process, we present the technical and engineering lessons learned that guided each of the design decisions.

January 19, 2026

Embedded

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Real-Time Systems and Concurrency: A Developer’s Guide

When it comes to embedded systems, especially in fields like industrial control or medical devices, getting your code to run efficiently, predictably, and safely is paramount. You’ve likely put in the hard work to design detailed, robust systems, but without a solid grasp of real-time concepts and concurrency, your efforts might not achieve the desired reliability. This is where understanding Real-Time Operating Systems (RTOS) like Zephyr comes into play. At Emtech, we build a lot of embedded systems, so I’d like to share and explore why real-time systems and concurrency are crucial for embedded developers and how they can help you build better, more reliable products.

October 15, 2025

Embedded

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Hardware In The Loop

Hardware-in-the-Loop (HIL) is a technique for the development and validation of embedded systems that verifies application behavior directly on the physical target hardware. Because increasing system complexity in sectors like automotive and aerospace makes pure simulation insufficient, HIL allows for safe testing of risky scenarios. This ensures every software change is validated under real operating conditions, guaranteeing expected interaction between hardware, drivers, and the OS.

October 7, 2025

Embedded

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TinyML in Action: Building a bird detector that fits in the palm of your hand

In recent years, artificial intelligence in microcontrollers (TinyML) has gone from being a laboratory curiosity to becoming a real tool for environmental monitoring, health, and industrial automation. This article shows how we transformed gigabytes of raw audio—the songs of six Patagonian species—into a fully INT8-quantized model that takes up just 60 kB of Flash and takes less than a second to classify a clip on an ESP32.

August 13, 2025

Embedded

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From LoRa to LoRaWAN: How Zephyr OS Empowered Emtech's IoT Evolution

In the rapidly changing IoT/AgTech field, Emtech strives to deliver innovative solutions for agriculture. We upgraded from LoRa to LoRaWAN gateways to enable bidirectional communication with our nodes. This led us to adopt Zephyr OS, offering a more robust development experience for LoRaWAN.

August 8, 2024

Embedded

open source

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Zephyr OS, A brief introduction

The Zephyr Project emerged on the embedded systems scene in 2016 as a new real-time operating system (RTOS) for embedded and IoT devices. It's a collaborative effort led by the Linux Foundation, along with Wind River, Synopsys, and NXP. Their goal was to create a multi-platform RTOS that leverages proven concepts from the Linux operating system, such as kconfig, device trees, and the driver model.‍

August 8, 2024

open source

Embedded

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Qt Development: Challenges and Strategies for Efficient Code Inheritance

Developing software based on preexisting code is an art in itself. When this challenge is combined with the use of the Qt framework and an inefficient legacy architecture, the complexity and opportunities multiply. In this blog, we will explore not only the benefits and challenges of inheriting code in the world of Qt but also how to address an inefficient legacy architecture and face the eternal dilemma of investing time in redesign versus saving time by maintaining the existing architecture.

August 8, 2024

QCreator

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How can Raspberry Pi's potential be unleashed in developing HMI applications for IoT with intensive loads?

Unlocking the Raspberry Pi's full potential for developing HMI applications for IoT involves a symphony of components, from the nimble Buildroot OS to the versatile OPC UA Server, TCP/IP Server, Serial Interface, RDP, SFTP, Camera, and seamless OS updates. Each element plays a pivotal role in enabling efficient communication, remote access, and adaptability, making it an ideal solution for the challenges of demanding industrial scenarios.

August 8, 2024

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Integrate an OPC UA Server into an embedded or PC application using the QT platform

In today's post we will introduce you to automating industrial or Internet of Things equipment through an API developed with the OPC UA standard using QT as a development platform. QT allows you to create cross-platform applications, so you could create an application that runs both on a PC and on an embedded system like a raspberry pi.

August 8, 2024