Embedded Systems

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News, articles, guides, analytics, projects and startups from the embedded industry. Topics of the channel: ◽️ machine learning ◽️ internet of things ◽️ embedded software ◽️ advanced electronics ◽️ new engineering ideas ⤵️ Share and subscribe!

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“News, articles, guides, analytics, projects and startups from the embedded industry. Topics of the channel: ◽️ machine learning ◽️ internet of things ◽️ embedded software ◽️ advanced electronics ◽️ new engineering ideas ⤵️ Share and subscribe!”

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📟 Windows 98 Wrist Watch on Raspberry Pi Smartwatches are still trying to find their place in the world. A good idea in theory, they haven't quite caught on like smartphones did a decade ago. But every once in a while, there's an amazing smartwatch innovation, such as this incredible wrist computer running Windows 98. More information... #projects #raspberry

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💡 Data Integrity Critical to Embedded Systems How do you validate sensor and communication data to ensure data integrity in embedded systems? ▫️ 1. At least use a parity check Parity is a data integrity mechanism that looks at the number of ones in a data stream and will then adjust a parity bit to make the overall number of ones either odd or even. Parity works well for detecting single bit flips. However, if two or more bits flip, it’s possible the error would go undetected. For that case, a more robust technique is required. ▫️ 2. Use a checksum A checksum is an algorithm that is designed to detect errors that occur naturally or randomly in a dataset. A checksum is often calculated over a set of data which then results in the checksum for the data. ▫️ 3. Use a cyclical redundancy check (CRC) A CRC is a checksum that uses polynomial division to calculate the checksum. CRC is so effective that many microcontroller vendors will include a hardware-based CRC calculator. More information... #articles

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🗜 3D-printed Variable Capacitor Have you ever stuck in the middle of a project trying to find out the perfect size capacitor for your project? If yes then this is the project for you! To make a variable capacitor we need to vary some parameters upon which the capacitance depends: the capacitance value depends on the area and the distance been the parallel plates. We will change the area of interaction of two parallel plates to vary the capacitance. Our solution will consist of two cylindrical aluminum foils whose area of interaction will be controlled by the rotation of a threaded rod. It will provide precision control over the range of the capacitance. More information... #projects #electronics #3d_modeling

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🔬 How To Get Started in Soldering Becoming a master of the melting and gluing powers of solder can help you start building your own electronics. For hobbyists who want to create their own electronics from scratch, there comes a time in every project when two metal surfaces must merge. Solder, which changes from a flexible solid to a liquid, then back to a solid in seconds, is the magical metal glue that makes this happen. Solder can also be a frustrating mess. For reasons both aesthetic and functional, you'll want to learn how to work with it cleanly and neatly, because sloppy soldering means your project might not work. The following article will get you acquainted with basic terms of electronics, soldering and give you a good grounding to start working on your own electrical projects. More information... #articles #electronics #beginner

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🎛 20 Cool Raspberry Pi Zero Cases to 3D Print Small article with a list of different 3D models of cases for your Raspberry Pi Zero board, the links to 3D files with models are included. "The Raspberry Pi Zero is a tinkerer’s dream! This tiny single-board computer features a 1-GHz processor, 512 MB of RAM, and on-board Wi-Fi and Bluetooth, all for only $10. To reach that price point, the Pi comes fairly bare-bones; it only includes the circuit board itself, with no accessories. As such, the board can be fairly fragile, so having a case for your Pi is important. To that end, we’ve gathered a list of our top 20 Raspberry Pi Zero cases. Let’s take a look!" More information... #articles #raspberry #zero #3d_modeling

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🤖 ESP8266 Wi-Fi AP Controlled Quadruped 3D-printed Robot Super detailed tutorial about the construction of 12 DOF or four leg (quadruped) robot using SG90 servo with servo driver which it can be controlled using Wi-Fi Web server via smartphone browser. Each step is illustrated with video and clear explanations. All the 3D details for printing are presented as well as code for ESP8266, etc. Total cost for this project is around US $55 (For Electric parts and Plastic Robot Frame). More information: Main article Details for 3D printing #projects #robots #IoT #wifi #3d_modeling #esp8266

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📚 Lee E.A., Seshia - S.A. Introduction to Embedded Systems: A Cyber-Physical Systems Approach (2017) This book takes a cyber-physical approach to embedded systems, introducing the engineering concepts underlying embedded systems as a technology and as a subject of study. The focus is on modeling, design, and analysis of cyber-physical systems, which integrate computation, networking, and physical processes. The book can be used as a textbook at the advanced undergraduate or introductory graduate level and as a professional reference for practicing engineers and computer scientists. #books #design #control

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📌 What do Embedded Hardware engineers do? Following article describes the work of the embedded hardware engineers, their daily routine, skills required, etc. The main duties of embedded hardware engineers include: ▫️ selection of components ▫️ designing PCBs ▫️ designing and performing hardware tests, making custom testing tools ▫️ designing other related hardware needed like test benches and product casing ▫️ writing a little bit of production software Embedded Hardware Engineer must have good knowledge about: ▫️ Fundamentals in Electronics ▫️ Reading datasheets and Schematics ▫️ Circuit and PCB design and analysis ▫️ Microcontroller architectures ▫️ Circuit debugging ▫️ Electrical engineering ▫️ JTAG for production and testing ▫️ Effective use of tools like Multimeters, Spectroscopes, and Oscilloscopes ▫️ Soldering skills These are just basics, depending on the product being designed other skills like networking knowledge, radio engineering can also be needed. More information... #articles #work

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🤖 ESP32 notifying about Motion Detected through Telegram Bot This tutorial shows how to send notifications to your Telegram account when the ESP32 detects motion. As long as you have access to the internet in your smartphone, you’ll be notified no matter where you are. Here’s an overview on how the project works: ▫️ You’ll create a Telegram bot for your ESP32. ▫️ The ESP32 is connected to a PIR motion sensor. ▫️ When the sensor detects motion, the ESP32 sends a warning message to your telegram account. ▫️ You’ll be notified in your Telegram account whenever motion is detected. This is a simple project, but shows how you can use Telegram in your IoT and Home Automation projects. The idea is to apply the concepts learned in your own projects. More information... #projects #bot #IoT #esp32

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📟 Watchy: Arduino-compatible watch uses an ESP32 microcontroller and an e-ink display Watchy is an open source product that uses an ESP32, an E-ink display, and costs about $50. The display is 1.5 inches — good enough for a watch — and it has a real time clock, a vibration motor, an accelerometer, and four buttons. The whole thing runs on a 200 mAh lithium polymer battery. The charger is microUSB and you can also upload software to it using the usual Arduino tools. Unlike a normal Arduino program, all the work in a typical Watchy program happens in setup() so the watch can mostly sleep and it updates the 200×200 typically just once a minute. As an example, [Stephan] wrote a watch face that uses an old Irish alphabet to tell time. He plans to add code to grab online data, too, and the phone has support for connecting wirelessly and parsing JSON to make tasks like that easier. More information: Main article Page on the Github #projects #esp32

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🔌 Latching Power Switch Circuit (Auto Power Off Circuit) for ESP32, ESP8266, Arduino In this article we’ll show you how to build a Latching Power Switch Circuit, also know as an Auto Power Off Circuit. You can use this circuit to auto-power off the ESP32, ESP8266, Arduino, or any other microcontroller. This circuit allows you to cut off power completely when the microcontroller is not executing any task. In other words, as soon as the microcontroller finishes executing a task it turns itself off via software. This is a great way to make batteries last longer in your electronics projects. More information... #projects #arduino #esp32 #electronics

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📲 Top 15 Best IoT Operating Systems For Your IoT Devices The main idea of the internet of things (IoT) is connectivity between the web and sensor-based tiny devices on a system. IoT operating system is software that ensures connectivity between IoT applications and embedded devices. In the following article you will find a list of the 15 best available operating systems for your embedded project. More information... #articles #IoT

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📟 IBoard! Web-controlled Whiteboard The idea of the project is to create an erasable whiteboard that could write and draw in real time via a web interface and therefore also from a smartphone. "The project that I want to present I have realized entirely by myself from the mechanics to the control software. In life I make the web programmer and I have thought to exploit this knowledge by applying them to the robotics world. I modeled every single piece of mechanics, I printed it in 3D with my Davinci 3D, assembled the electronics part and finally developed the control software, it was a wonderful experience for me that gave me the opportunity to understand best of all the production process of a real prototype." The article is organized in macro-sections: ▫️ Components ▫️ Working logic ▫️ Mechanical project ▫️ Electronics ▫️ Software More information... #projects #raspberry #arduino

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💻 How to become an Embedded Software Engineer? Due to a big knowledge base needed, entering this particular engineering field can seem daunting. By the end of this article hopefully, you will know where to start, how to plan and how to proceed in order to become an embedded software engineer. The reason behind the fact that the knowledge base needed to develop embedded systems is vast is that there are lots of branches to embedded software engineering: ▫️ Embedded bare-metal software development ▫️ Embedded Linux Software development ▫️ Embedded RTOS software development ▫️ Embedded Networking software development Although each branch needs a unique set of skills, some skills are common to all: ▫️ Good mastery of C and C++ programming ▫️ Basics of Electronics ▫️ Basic knowledge about Microcontrollers ▫️ Debugging skills using oscilloscope and logic analyzers ▫️ Version management software like Git ▫️ Basics of Operating Systems More information... #articles #software #programming #work

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🖐🏻 9 Biometric Sensors Arduino Compatible The list of 9 biometric sensors Arduino compatible that you can use in your bioengineering experiments. These are great for hobbyist projects since most of them are easy to deal with. More information... #projects #arduino #sensors

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🤖 Robot Cat Short article describing the process of development of a cat robot. Files for 3D printing, code and list of parts are presented as well as all the necessary instructions. For controlling the servos of the robot, PCA9685 is used in the project. PCA9685 driver board is a common solution, MCU simply use I2C interface communicate with the driver board and it can control 16 servos at the same time continuously. More information: Main article 3D printing files #projects #robots #esp32 #servo

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❔ Embedded Systems Interview Questions In this moderately long page, I’ll list down the most common embedded systems interview questions. I’ve been answering too many questions over the past few years and many readers have asked for a compiled list of questions and answers for embedded systems and embedded c interview questions. So here it is! Topics covered in the article: ▫️ Data Structures & Algorithms ▫️ Embedded Software Testing ▫️ Microcontroller Peripherals ▫️ Computer Architecture ▫️ Embedded Hardware ▫️ Problem Solving & IQ ▫️ RTOS & OS Concepts ▫️ Embedded C ▫️ Automotive More information... #articles #work

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💶 Embedded Engineers Salaries In Europe

(2019)

"In this article, I am writing the results of the research I did about embedded engineering jobs and salaries in various countries in Europe. Instead of giving you a misleading gross salary number, I have calculated the taxes and living expenses and I have given you the approximate savings you can expect to make each month." If you are a student wanting to learn Embedded Engineering or a student already learning it or if you are an experienced embedded engineer planning to move to Europe then this article is for you! Following countries in Europe are covered in the article: 🇳🇱 Netherlands 🇨🇭 Switzerland 🇩🇪 Germany 🇫🇷 France 🇦🇹 Austria 🇵🇱 Poland 🇫🇮 Finland 🇳🇴 Norway 🇸🇪 Sweden 🇮🇹 Italy 🇬🇧 UK More information... #articles #work

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📰 Next Raspberry Pi CPU Will Have Machine Learning Built In At the recent tinyML Summit 2021, Raspberry Pi co-founder Eben Upton teased the future of 'Pi Silicon' and it looks like machine learning could see a massive improvement thanks to Raspberry Pi's news in-house chip development team. It is safe to say that the Raspberry Pi Pico and its RP2040 SoC have been popular. The Pico has only been on the market for a few weeks, but already has sold 250,000 units with 750,000 on back order. During Upton's talk at 40 minutes the slide changes and we see "Future Directions" a slide that shows three current generation 'Pi Silicon' boards, two of which are from board partners, SparkFun's MicroMod RP2040 and Arduino's Nano RP2040 Connect. The third is from ArduCam and they are working on the ArduCam Pico4ML which incorporates machine learning, camera, microphone and screen into the Pico package... More information... #news #raspberry #machine_learning

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📰 Firmware vs Embedded Software: Explained with Examples! In this article, let us learn what the term “Firmware” means and see how that differs from the terms “Embedded Software”. Let us also see how these 2 types of code fit into the world of “Computer Software” with the help of a few examples! Embedded Software and Firmware are 2 terms you will find often used interchangeably in the industry when we talk about code that is running on a microcontroller. But is there a difference between these 2 terms? Or are “Firmware” and “Embedded Software” just 2 terms that mean the same thing? This article is about answering this question! More information... #articles #software #programming