These two chips show up on the same shortlist constantly, and the comparison is more interesting for how it clarifies what each one is built for than for declaring an overall winner — because once the two architectures are understood clearly, most real products don't need to choose between them at all. They need to choose which one owns which job. What the STM32WL Actually Is STMicroelectronics markets the STM32WL as the first true LoRa system-on-chip — a single die combining

The MCU selection meeting for a new battery-powered BLE wearable tends to follow a predictable pattern: someone proposes the chip the team already has experience with, someone else pulls up a deep-sleep current figure from a datasheet, and the decision gets made on incomplete information because a genuinely thorough comparison — across deep sleep current, active RX/TX current, peripheral set, toolchain maturity, and real sourcing availability — takes longer than the meeting h

A team building their first custom BLE product almost always makes the same early mistake: designing the GATT profile as a data model first — what fields does the device need to expose — and treating the power and timing consequences of that model as an afterthought to optimize later. By the time "later" arrives, the profile is baked into a mobile app's integration code and a certification submission, and the actual fix (restructuring which data lives in which characteristic,

A medical adherence wearable — a device that clips onto a bottle or sits on a patient's hand to detect and log a specific medication-use gesture — sounds, on paper, like a simple embedded project: an accelerometer, a Bluetooth radio, a battery. The first power budget spreadsheet we built for exactly this kind of device came back at 4 days of battery life on a 250mAh cell, against a target of six weeks. Getting from 4 days to 39 wasn't one clever trick — it was a systematic pa

Author: Srihari Maddula Reading Time: 25 mins Topic: Wireless Networking & BLE Reliability Radio waves don't care about your laboratory results. Photo via Unsplash. In a development lab, Bluetooth Low Energy (BLE) feels like magic. Your device is 2 feet away from your smartphone, the connection is instant, and the data transfer is flawless. You celebrate, wrap the project, and ship it. But then, the field reports start coming in: "The connection drops as soon as I put the pho

Author: Srihari Maddula Reading Time: 7-9 mins Tags: Career Advice, STM32, ESP32, Nordic, Embedded Systems The paradox of choice: Which chip builds a career? (Photo by Vishnu Mohanan on Unsplash) The Wrong Question: "Which Board Should I Buy?" Every day on Reddit and engineering forums, students ask the same question: "I want to get a job in embedded systems. Should I learn Arduino, Raspberry Pi, or PIC?" This is the wrong question. It assumes that an "Embedded Engineer" is s

Bluetooth Low Energy is often treated as a solved problem. A protocol stack exists. Reference designs are available. Development boards connect easily to smartphones. From the outside, BLE appears to be a mature, well-documented technology that can be dropped into an embedded product with minimal risk. This perception is precisely why BLE-related failures are so common after deployment. In real products, BLE is not just a protocol. It is a system behavior that interacts with

Most businesses believe digital transformation begins in the cloud. They talk about dashboards, analytics, automation, predictive insights, and AI-driven decisions. Boardroom conversations revolve around visibility, efficiency, compliance, and cost optimization. Somewhere in the middle of these discussions, a quiet assumption is made: that the data feeding all of this intelligence will simply “exist”. In reality, digital transformation does not start in the cloud. It starts o

By [Employee Name]/[Designation] at EurthTech Published on July 10, 2025 The Real-World Problem Let’s say you're developing a smart fitness band—an example of modern embedded systems development and IoT product engineering. It needs to: Continuously read accelerometer + heart rate data Push updates via BLE Display information on an OLED Stay alive for a week And run TinyML gesture detection using Edge AI in embedded devices All on something like an Apollo4 Blue or STM32L4. H

When most people imagine IoT, they think about smartwatches talking to smartphones, smart bulbs controlled by apps, or industrial sensors inside factories. These are not powered by satellites or LPWAN — they are powered by short-range wireless technologies. Short-range protocols dominate in homes, hospitals, offices, factories, and retail environments, where devices are typically within a few centimeters to a few hundred meters of each other. In this article, we’ll dive into

IoT (Internet of Things) is not just about smart sensors and connected devices. At its core, IoT is about communication — how billions of devices exchange data reliably, securely, and efficiently. Without the right communication technology, IoT is just “things” without the “internet.” But here’s the challenge: there is no single best protocol for IoT. Instead, we have a broad landscape of technologies — each with its own strengths, weaknesses, and use cases. From short-range

By CH Durga Prasad, Embedded Engineer at EurthTech Every embedded project starts with a decision that quietly shapes everything else that follows: Do we go with baremetal or use a Real-Time Operating System (RTOS)? It sounds like a technical formality. But in reality, this is where the architectural DNA of your product is formed. At EurthTech, we’ve lived through both sides of this debate—sometimes learning it the hard way in real deployments. This is the story of how we evo

By CH Durga Prasad, Embedded Engineer at EurthTech Estimated Reading Time: 15 minutes In the evolving landscape of smart infrastructure solutions, Bluetooth Low Energy (BLE) has quietly become the unsung hero behind many IoT product engineering innovations — from wearables and medical sensors to smart pole technology, industrial IoT and automation, and smart lighting systems. At EurthTech, we’ve engineered BLE into everything from health patches to AI-powered embedded systems

Bluetooth Low Energy (BLE), also known as Bluetooth Smart, is a wireless communication technology specifically designed for low-power applications. Its unique characteristics make it highly suitable for indoor localization: Key Features: Low Energy Consumption: BLE devices consume significantly less power than traditional Bluetooth devices, making them ideal for battery-powered applications such as beacons and mobile devices. This is critical when designing embedded systems f

The modern warehouse is a bustling hub of activity, with goods and assets constantly in motion. In this dynamic environment, knowing the precise location of everything in real time is crucial for optimizing workflows, minimizing errors, and maximizing productivity. Traditional methods of warehouse management often rely on manual tracking and inventory checks, which are time-consuming, prone to errors, and lack real-time visibility. This is where Warehouse Location-Based Servi

Introduction In the ever-evolving landscape of smart infrastructure solutions and IoT product engineering, warehouses are rapidly transforming into intelligent, connected ecosystems. Efficient and accurate order fulfilment remains a cornerstone of success in logistics, and innovative technologies like Bluetooth-based tags are now driving this digital shift. By integrating embedded systems development, Edge AI embedded devices, and Industrial IoT and automation, modern warehou

Asset tracking has become a critical component for businesses looking to enhance operational efficiency, reduce losses, and drive productivity. With the rise of IoT product engineering and AI-powered embedded systems, organizations are now able to monitor, manage, and optimize their assets in real-time—transforming traditional operations into intelligent, connected ecosystems. From industrial IoT and automation to smart city solutions, asset tracking is redefining how industr