Chages some titles and fonts

Add PCM

README.md

@@ -6,14 +6,45 @@ Becoming an embedded engineer requires a broad understanding of both software an
 
 ## What is an Embedded System?
 
-[Making Embedded Systems](https://www.oreilly.com/library/view/making-embedded-systems/9781449308889/): An embedded system is a **computerized system** that is **purpose built for its application**.
+[ISO/IEC/IEEE 24765 Standard:](https://www.iso.org/obp/ui/en/#iso:std:iso-iec-ieee:24765:ed-2:v1:en)
 
-[Analog Devices](https://www.analog.com/en/design-center/glossary/embedded-system.html): An embedded system is a system in which the **computer** (generally a microcontroller or microprocessor) is included as an integral part of the system. Often, the computer is relatively **invisible to the user**, without obvious applications, files, or operating systems. Examples of products with invisible embedded systems are the controller that runs a microwave oven or the engine control system of a modern automobile.
+> **computer system** that is **part of a larger system** and **performs some of the requirements of that system**. For example, a computer system
+used in an aircraft or rapid transit system.
+>
+> The hardware and software of an embedded system are usually **minimized** and **optimized** for **specific functions**. The embedded system includes at least one microcontroller, microprocessor or digital signal processor. The embedded system designed to optimize reliability, cost, size and power saving for applications.
 
-[Embedded Systems Glossary](https://barrgroup.com/embedded-systems/glossary-e): A combination of **computer hardware and software**, and perhaps **additional mechanical or other parts**, designed to perform a **dedicated function**. In some cases, embedded systems are **part of a larger system** or product, as in the case of an antilock braking system in a car.
+["Making Embedded Systems" Book:](https://www.oreilly.com/library/view/making-embedded-systems/9781449308889/)
+
+> An embedded system is a **computerized system** that is **purpose built for its application**.
+
+["Computer Organization and Embedded Systems" Book:](https://a.co/d/2lt4Svf)
+
+> A **physical system** that employs **computer control** for a **specific purpose**, rather than for general-purpose computation, is referred to as an embedded system.
+
+[Analog Devices Glossary:](https://www.analog.com/en/design-center/glossary/embedded-system.html)
+
+> An embedded system is a system in which the **computer** (generally a microcontroller or microprocessor) is included **as an integral part of the system**.
+>
+> Often, the computer is **relatively invisible to the user**, without obvious applications, files, or operating systems. Examples of products with invisible embedded systems are the controller that runs a microwave oven or the engine control system of a modern automobile.
+
+[Embedded Systems Glossary:](https://barrgroup.com/embedded-systems/glossary-e)
+
+> A combination of **computer hardware and software**, and perhaps **additional mechanical or other parts**, designed to perform a **dedicated function**.
+>
+> In some cases, embedded systems are **part of a larger system** or product, as in the case of an antilock braking system in a car.
 
 ## Roadmap
 
+The roadmap is divided into three main sections: **SOFTWARE**, **HARDWARE**, and **SOFT SKILLS**.
+
+The hardware and software sections overlap in many embedded job roles. Different job titles, such as "Embedded Software Engineer / Developer," "Firmware Engineer / Developer," and "Embedded Linux Software Engineer / Developer," tend to focus more on software. On the other hand, job roles like "Embedded Hardware Engineer" and "Hardware Design Engineer" primarily focus on hardware. Additionally, there are positions like "Embedded Systems Engineer" that require a good understanding of both hardware and software. It's crucial to understand that each company in the embedded industry may have specific requirements for a job role, regardless of its title.
+
+With this in mind, the roadmap is designed to cover topics necessary for an "Embedded Systems Engineer" role. If you are aiming for an embedded software position, you should focus more on software skills in the roadmap. Conversely, if you are interested in an embedded hardware job, you should prioritize hardware skills.
+
+In the embedded industry, all job roles require some soft skills, which cannot be acquired solely through reading or watching videos. Soft skills are developed through communication with others and facing various work challenges. Improving soft skills is not a one-size-fits-all approach. It varies depending on your individual characteristics and involves being aware of your own strengths and weaknesses. Enhancing these skills takes time and effort.
+
+**Remember that the emphasis on software or hardware skills may vary depending on the specific requirements of the company or job position.**
+
 ![Embedded Systems Engineering Roadmap](https://github.com/m3y54m/Embedded-Engineering-Roadmap/releases/latest/download/Embedded-Engineering-Roadmap.png)
 
 ## Learning Resources
@@ -23,6 +54,18 @@ Becoming an embedded engineer requires a broad understanding of both software an
 #### 🔎 Searching is Your Super Power!
 
 - [Google](https://www.google.com)
+- [Bing](https://www.bing.com/)
+- [DuckDuckGo](https://duckduckgo.com/)
+
+#### ⚒️ Projects
+
+Engaging in hands-on projects is the most effective approach to learning. Rather than solely relying on theoretical knowledge from books or articles, undertaking projects allows for practical learning experiences. Even a seemingly basic project has the potential to teach you more than aimless reading. You can refer to books, articles, and courses when faced with difficulties in understanding the problems in a real-world project.
+
+- [51 STM32 Projects & Tutorials for Beginners and Up - Hackster.io](https://www.hackster.io/stm32/projects)
+- [STM32 (STM32F103C8) Projects & Tutorials](https://circuitdigest.com/stm32-projects-and-tutorials)
+- [ElectronicWings Projects](https://www.electronicwings.com/projects)
+- [STM32 Firmware - Phil’s Lab (YouTube Playlist)](https://youtube.com/playlist?list=PLXSyc11qLa1a4Tqbz228dPZfMrs-KRpzA)
+- [Raspberry Pi Based Embedded Project Ideas](https://www.rs-online.com/designspark/raspberry-pi-based-embedded-project-ideas)
 
 #### 🎥 Courses and YouTube Contents
 
@@ -66,7 +109,7 @@ PlatformIO is not yet extensively adopted in industrial and large-scale projects
 
 If you do not have any background in programming the embedded systems, Arduino boards and libraries are the best choice for you to start and learn the basics. Just keep in mind that most of the Arduino libraries are developed for learning purposes and are not optimized to be used in industry.
 
-Additionally, the [Arduino Core](https://github.com/arduino/ArduinoCore-API) takes care of most of the low-level operations and manipulation of registers that you, as an embedded engineer, should be able to handle yourself. If you want to become a professional embedded developer, you must be able to effectively use industry-standard APIs and frameworks provided and approved by microcontroller vendors. For example, CMSIS for ARM Cortex, STM32Cube for STM32, ESP-IDF for Espressif microcontrollers, etc.
+Additionally, the [Arduino Core](https://github.com/arduino/ArduinoCore-API) takes care of most of the low-level operations and manipulation of registers that you, as an embedded engineer, should be able to handle yourself. If you want to become a professional embedded developer, you should be able to effectively use industry-standard APIs and SDKs provided and approved by microcontroller vendors. For example, CMSIS for ARM Cortex, STM32Cube for STM32, ESP-IDF for Espressif microcontrollers, etc.
 
 - [Getting Started with Arduino](https://docs.arduino.cc/learn/starting-guide/getting-started-arduino)
 - [New Arduino Tutorials (YouTube Playlist)](https://youtube.com/playlist?list=PLGs0VKk2DiYw-L-RibttcvK-WBZm8WLEP)
@@ -76,39 +119,38 @@ Additionally, the [Arduino Core](https://github.com/arduino/ArduinoCore-API) tak
 #### 👨‍🏫 Educational Websites
 
 - [DeepBlueMbedded](https://deepbluembedded.com/)
-- [Interrupt Blog by Memfault](https://interrupt.memfault.com/blog/)
+- [💎 Interrupt Blog by Memfault](https://interrupt.memfault.com/blog/)
+- [ElectronicWings - Hardware Developers Community](https://www.electronicwings.com/)
 - [Microchip University](https://mu.microchip.com/)
 - [Nordic Developer Academy](https://academy.nordicsemi.com/)
 - [Electronics Tutorials](https://www.electronics-tutorials.ws)
 - [SparkFun Learn: Learn at SparkFun Electronics](https://learn.sparkfun.com/)
 - [Adafruit Learning System](https://learn.adafruit.com/)
+- [STM32 World](https://stm32world.com)
 - [Random Nerd Tutorials | Learn ESP32, ESP8266, Arduino, and Raspberry Pi](https://randomnerdtutorials.com/)
 - [ControllersTech](https://controllerstech.com/)
 
-#### ⚒️ Projects
-
-- [STM32 Firmware - Phil’s Lab (YouTube Playlist)](https://youtube.com/playlist?list=PLXSyc11qLa1a4Tqbz228dPZfMrs-KRpzA)
-- [Udemy – STM32 : Internet Of Things with 4G LTE Modem - Hardware](https://www.udemy.com/course/stm32-internet-of-things-with-4g-lte-modem-hardware/)
-
-#### 😈 Hardware Hacking
-
-- [Hardware Hacking Tutorial (YouTube Playlist)](https://www.youtube.com/playlist?list=PLoFdAHrZtKkhcd9k8ZcR4th8Q8PNOx7iU)
-- [The Hardware Hacking Handbook: Breaking Embedded Security with Hardware Attacks - Jasper van Woudenberg, Colin O'Flynn](https://a.co/d/gUIytFX)
-
-
 #### 🗺️ Other Helpful Roadmaps
 
+- [Embedded Artistry Beginners Roadmap](https://embeddedartistry.com/beginners/)
 - [Embedded Systems Skill Tree](https://github.com/sjpiper145/MakerSkillTree/tree/main/Embedded%20Systems%20Skill%20Tree)
 - [PCB Design Skill Tree](https://github.com/sjpiper145/MakerSkillTree/tree/main/PCB%20Design%20Skill%20Tree)
 
+#### ❓ Ask Questions
+
+- [Electrical Engineering Stack Exchange](https://electronics.stackexchange.com/)
+
 _________________
 
-**Note:** It is not necessary to read or watch all of the following materials, but it is important to study enough to have a basic understanding of each topic. Of course, the more you study and practice, the greater your knowledge will become, ultimately enhancing your abilities as an engineer.
+**⚠️ Note:** It is not necessary to read or watch all of the following materials, but it is important to study enough to have at least a basic understanding of the required topics. Of course, the more you study and practice, the more your knowledge will grow. This continuous learning process will gradually improve your skills and make you a better engineer.
 
 Some of the resources mentioned here will just be used as references. Refer to them only when you need them.
 
-The 💎 symbol is to indicate well-known references that have really invaluable and comprehensive content.
-If you want to deepen your understanding of a topic, refer to the resources marked with a 💎 icon.
+**Symbols Guide:**
+
+👶 indicates easy-to-understand and beginner-friendly resources. Refer to them if you do not have prior knowledge in a topic.
+
+💎 indicates well-known references that have truly invaluable and comprehensive content. Refer to them if you want to deepen your understanding of a topic.
 _________________
 
 ### Soft Skills
@@ -118,42 +160,53 @@ _________________
 
 _________________
 
-### Electronics Fundamentals
+### Electronics
 
 #### Basic Math & Calculus
 
 - [Khan Academy - Calculus 1](https://www.khanacademy.org/math/calculus-1)
-- [Calculus For Dummies - Mark Ryan](https://a.co/d/cyvZqE1)
+- [👶 Calculus For Dummies - Mark Ryan](https://a.co/d/cyvZqE1)
 - [💎 Thomas' Calculus](https://a.co/d/gFcCC37)
 
-#### Electrical Circuits Basics
+#### Principles of Electric Circuits
 
-- [💎 Electronics Tutorials](https://www.electronics-tutorials.ws)
-- [Lessons in Electric Circuits](https://www.allaboutcircuits.com/textbook/)
-- [Make: Electronics: Learning by Discovery - Charles Platt](https://a.co/d/fbRoM1R)
-- [Electronic Basics - GreatScott! (YouTube Playlist)](https://youtube.com/playlist?list=PLAROrg3NQn7cyu01HpOv5BWo217XWBZu0)
-- [Fundamentals of Electric Circuits - Charles K. Alexander, Matthew Sadiku](https://www.amazon.com/dp/1260226409?ref_=cm_sw_r_cp_ud_dp_Q11YHXNY2BK530RQZC4S)
-- [Grob’s Basic Electronics - Mitchel E. Schultz](https://a.co/d/g1g73HV)
+- [👶 Lessons in Electric Circuits (All About Circuits)](https://www.allaboutcircuits.com/textbook/)
+- [👶 💎 Electronics Tutorials](https://www.electronics-tutorials.ws)
+- [👶 💎 Fundamentals of Electric Circuits - Charles K. Alexander, Matthew Sadiku](https://www.amazon.com/dp/1260226409?ref_=cm_sw_r_cp_ud_dp_Q11YHXNY2BK530RQZC4S)
+- [👶 💎 Principles of Electric Circuits: Conventional Current Version -  Thomas L Floyd, David M. Buchla](https://a.co/d/32T2t2X)
+- [💎 Basic Circuit Theory I (By Prof. Razavi) (YouTube Playlist)](https://www.youtube.com/playlist?list=PL9KyzjPFbwH37w22z-UHVEt37pdJHjZ7x)
+
+#### Electronics Fundamentals
+
+- [👶 Electronic Basics - GreatScott! (YouTube Playlist)](https://youtube.com/playlist?list=PLAROrg3NQn7cyu01HpOv5BWo217XWBZu0)
+- [👶 Make: Electronics: Learning by Discovery - Charles Platt](https://a.co/d/fbRoM1R)
+- [👶 💎 Electronic Devices: Conventional Current Version - Thomas Floyd, David Buchla, Steven Wetterling](https://a.co/d/1dsS0vx)
+- [👶 💎 Electronics Fundamentals: Circuits, Devices & Applications - Thomas L Floyd, David M. Buchla, Gary D. Snyder](https://a.co/d/4Ye5m8h)
+- [👶 Practical Electronics for Inventors - Paul Scherz, Simon Monk](https://a.co/d/1QfSN8j)
 - [💎 The Art of Electronics -  Paul Horowitz, Winfield Hill](https://artofelectronics.net/)
-
-#### Electronic Components
-
 - [Here’s a Quick Way to Know about Major Electronic Components](https://www.elprocus.com/major-electronic-components/)
 - [Encyclopedia of Electronic Components - Charles Platt](https://a.co/d/83cSiU7)
 
 #### Digital Circuits & Logic Design
 
-- [💎 Digital Design - Morris Mano](https://www.portcity.edu.bd/files/636444791235373856_Digitallogicdesign.pdf)
+- [👶 Tiny Tapeout > Digital Design Guide](https://tinytapeout.com/digital_design/)
+- [👶 FPGA Fundamentals - Nandland](https://nandland.com/fpga-101/)
+- [💎 Digital Design - Morris Mano, Michael Ciletti](https://a.co/d/c3tBaoc)
+- [👶 💎 Digital Design and Computer Architecture: ARM Edition -  Sarah Harris, David Harris](https://a.co/d/4otoVvI)
+- [👶 💎 Digital Design and Computer Architecture: RISC-V Edition -  Sarah Harris, David Harris](https://a.co/d/61l7Jtb)
+- [👶 Digital Fundamentals - Thomas L. Floyd](https://a.co/d/2lgJKNX)
 
 #### Computer Architecture
 
-- [Computer Organization and Design: ARM Edition -  David A. Patterson, John L. Hennessy](https://a.co/d/8YPUXG7)
-- [💎 Digital Design and Computer Architecture: ARM Edition -  Sarah Harris, David Harris](https://a.co/d/4otoVvI)
-- [💎 Digital Design and Computer Architecture: RISC-V Edition -  Sarah Harris, David Harris](https://a.co/d/61l7Jtb)
+- [👶 💎 Computer Organization and Design: ARM Edition -  David A. Patterson, John L. Hennessy](https://a.co/d/8YPUXG7)
+- [👶 💎 Digital Design and Computer Architecture: ARM Edition -  Sarah Harris, David Harris](https://a.co/d/4otoVvI)
+- [👶 💎 Digital Design and Computer Architecture: RISC-V Edition -  Sarah Harris, David Harris](https://a.co/d/61l7Jtb)
+- [Computer Organization and Embedded Systems -  Carl Hamacher, Zvonko Vranesic, Safwat Zaky, Naraig Manjikian](https://a.co/d/2lt4Svf)
 - [Embedded Systems Architecture - Tammy Noergaard](https://www.oreilly.com/library/view/embedded-systems-architecture/9780123821966/)
 - [The Definitive Guide to ARM® Cortex®-M0 and Cortex-M0+ Processors - Joseph Yiu](https://www.oreilly.com/library/view/the-definitive-guide/9780128032787/)
 - [The Definitive Guide to ARM® Cortex®-M3 and Cortex®-M4 Processors - Joseph Yiu](https://www.oreilly.com/library/view/the-definitive-guide/9780124080829/)
 - [Build an 8-bit computer from scratch](https://eater.net/8bit/)
+- [Embedded Systems Architecture - Daniele Lacamera](https://www.packtpub.com/product/embedded-systems-architecture-second-edition/9781803239545)
 
 _________________
 
@@ -161,8 +214,8 @@ _________________
 
 #### Multimeter
 
-- [Learn How to Use a Multimeter!](https://youtu.be/4lAyzRxsbDc)
-- [How to Use a Multimeter ](https://learn.sparkfun.com/tutorials/how-to-use-a-multimeter/all)
+- [👶 Learn How to Use a Multimeter!](https://youtu.be/4lAyzRxsbDc)
+- [👶 How to Use a Multimeter ](https://learn.sparkfun.com/tutorials/how-to-use-a-multimeter/all)
 
 #### Logic / Protocol Analyzer
 
@@ -170,9 +223,9 @@ _________________
 
 #### Oscilloscope
 
-- [What’s an OSCILLOSCOPE?](https://youtu.be/DgYGRtkd9Vs)
-- [How to Use an Oscilloscope](https://youtu.be/u4zyptPLlJI)
-- [How to use an oscilloscope / What is an oscilloscope / Oscilloscope tutorial](https://youtu.be/CzY2abWCVTY)
+- [👶 What’s an OSCILLOSCOPE?](https://youtu.be/DgYGRtkd9Vs)
+- [👶 How to Use an Oscilloscope](https://youtu.be/u4zyptPLlJI)
+- [👶 How to use an oscilloscope / What is an oscilloscope / Oscilloscope tutorial](https://youtu.be/CzY2abWCVTY)
 - [Understanding EMI Debugging with Oscilloscopes](https://www.youtube.com/watch?v=x1rn5YNLmVw)
 
 _________________
@@ -181,35 +234,36 @@ _________________
 
 #### Breadboarding
 
-- [Everything You Need to Know about Breadboards](https://www.youtube.com/watch?v=mE33WpRWrXs)
-- [How to Use a Breadboard](https://youtu.be/6WReFkfrUIk)
+- [👶 Everything You Need to Know about Breadboards](https://www.youtube.com/watch?v=mE33WpRWrXs)
+- [👶 How to Use a Breadboard](https://youtu.be/6WReFkfrUIk)
 
 #### Hardware Design Basics
 
+- [👶 💎 Hardware Design - Phil’s Lab (YouTube Playlist)](https://www.youtube.com/playlist?list=PLXSyc11qLa1YhVCZ5xWPuPsE5MkgEy5TF)
 - [Electronic Circuit Design - IFE - TU Graz (YouTube Playlist)](https://www.youtube.com/playlist?list=PLLpZ1DoEuR9tbV8r8bMSI94znm6pRB905)
-- [Hardware Design - Phil’s Lab (YouTube Playlist)](https://www.youtube.com/playlist?list=PLXSyc11qLa1YhVCZ5xWPuPsE5MkgEy5TF)
 - [Microcontroller-Based Hardware Design With Altium Designer (YouTube Playlist)](https://www.youtube.com/playlist?list=PL3aaAq2OJU5HcbClqrOhqBDozF7HmxV-s)
 
 #### PCB Design
 
 - [Altium Academy YouTube Channel](https://www.youtube.com/@AltiumAcademy)
 - [Robert Feranec YouTube Channel](https://www.youtube.com/@RobertFeranec)
-- [Altium Tutorials for Beginners - Robert Feranec (YouTube Playlist)](https://www.youtube.com/playlist?list=PLXvLToQzgzdduBaD4horowdWgcG5uGUW4)
-- [Create PCBs for Rapid Prototyping - DigiKey (YouTube Playlist)](https://www.youtube.com/playlist?list=PLEBQazB0HUyRVK1RpHIjyjuTxn5srz6XM)
+- [👶 Altium Tutorials for Beginners - Robert Feranec (YouTube Playlist)](https://www.youtube.com/playlist?list=PLXvLToQzgzdduBaD4horowdWgcG5uGUW4)
+- [👶 Create PCBs for Rapid Prototyping - DigiKey (YouTube Playlist)](https://www.youtube.com/playlist?list=PLEBQazB0HUyRVK1RpHIjyjuTxn5srz6XM)
 - [How to Make a Raspberry Pi Compute Module 4 Carrier Board - DigiKey (YouTube Playlist)](https://www.youtube.com/playlist?list=PLEBQazB0HUyRwjr761b-MLNEu8FA8WKSG)
 - [How To Learn PCB Design (My Thoughts, Journey, and Resources) - Phil's Lab #87](https://youtu.be/aODkA2mrimQ)
-- [KiCad 6 STM32 PCB Design Full Tutorial - Phil's Lab #65](https://youtu.be/aVUqaB0IMh4)
-- [Intro to KiCad - DigiKey (YouTube Playlist)](https://www.youtube.com/watch?v=vaCVh2SAZY4&list=PLEBQazB0HUyR24ckSZ5u05TZHV9khgA1O)
+- [👶 KiCad 6 STM32 PCB Design Full Tutorial - Phil's Lab #65](https://youtu.be/aVUqaB0IMh4)
+- [👶 Intro to KiCad - DigiKey (YouTube Playlist)](https://www.youtube.com/watch?v=vaCVh2SAZY4&list=PLEBQazB0HUyR24ckSZ5u05TZHV9khgA1O)
 - [PCB Design for EMI & SI - Phil's Lab #64](https://www.youtube.com/watch?v=VtzPL8wQ8-E)
 - [PCB Design for Advanced Users (YouTube Playlist)](https://youtube.com/playlist?list=PL3aaAq2OJU5EWfYT_Z93tc9pBF_Sidba_)
 - [9 Simple Tricks to Improve EMC / EMI on Your Boards - Practical examples (with Min Zhang)](https://www.youtube.com/watch?v=Lf51sx6sC0I)
 - [Many EMC Tips to Help You Design Better PCB Boards (with Keith Armstrong)](https://www.youtube.com/watch?v=gHF5JyJF-N4)
+- [LearnEMC - EMC Resources](https://learnemc.com/emc-resources)
 
 #### Soldering
 
-- [How To Solder - Electronics with Becky Stern | Digi-Key Electronics](https://www.youtube.com/watch?v=sS4v2hIFp9I)
-- [HOW TO SOLDER! (Beginner's Guide)](https://www.youtube.com/watch?v=3jAw41LRBxU)
-- [Soldering Crash Course: Basic Techniques, Tips and Advice!](https://www.youtube.com/watch?v=6rmErwU5E-k)
+- [👶 How To Solder - Electronics with Becky Stern | Digi-Key Electronics](https://www.youtube.com/watch?v=sS4v2hIFp9I)
+- [👶 HOW TO SOLDER! (Beginner's Guide)](https://www.youtube.com/watch?v=3jAw41LRBxU)
+- [👶 Soldering Crash Course: Basic Techniques, Tips and Advice!](https://www.youtube.com/watch?v=6rmErwU5E-k)
 - [How to Solder Through-Hole Components - Another Teaching Moment | DigiKey Electronics](https://www.youtube.com/watch?v=DJH7VLGJ4fs)
 - [How to Solder QFN MLF Package by Hand (Using a Hot Air Rework Station) | Digi-Key Electronics](https://youtu.be/X3Rc1s6EpSI)
 - [From Solderless Breadboard to Soldered Circuit - Electronics with Becky Stern | Digi-Key Electronics](https://www.youtube.com/watch?v=F9Krq7seV1g)
@@ -218,6 +272,7 @@ _________________
 
 ### FPGA Design
 
+- [What are FPGAs?](https://hackaday.io/project/27550-the-hobbyists-guide-to-fpgas/log/68114-what-are-fpgas)
 - [FPGA vs. Microcontroller: How to choose the right one for your project](https://www.youtube.com/watch?v=jblpHUCPQYs)
 - [Introduction to FPGA (YouTube Playlist)](https://youtube.com/playlist?list=PLEBQazB0HUyT1WmMONxRZn9NmQ_9CIKhb)
 - [FPGA Fundamentals - Nandland](https://nandland.com/fpga-101/)
@@ -233,10 +288,18 @@ _________________
 
 - [What is the software development life cycle?](https://www.coderus.com/the-software-development-lifecycle/)
 - [Embedded Product Development Life Cycle: Four Main Steps](https://www.sam-solutions.com/blog/embedded-product-development-life-cycle/)
+
+#### Agile / SCRUM
+
 - [Does agile work with embedded software?](https://www.embedded.com/does-agile-work-with-embedded-software/)
 - [Scrum for embedded software: Good – but for reasons other than what your manager thinks](https://www.elektrobit.com/trends/scrum-for-embedded-software/)
 - [What Is Scrum: A Guide to the Most Popular Agile Framework](https://www.scrumalliance.org/about-scrum)
-- [What Is the V-Model in Software Development?](https://builtin.com/software-engineering-perspectives/v-model)
+- [Jira - Issue & Project Tracking Software](https://confluence.atlassian.com/jira)
+
+#### V-Model (V-cycle)
+
+- [What is the V model for software development](https://x-engineer.org/v-model-software-development/)
+- [V Model In Software Engineering: Ultimate Guideline](https://biplus.com.vn/v-model-in-software-engineering/)
 
 _________________
 
@@ -244,7 +307,7 @@ _________________
 
 #### Algorithms & Data Structures
 
-- [💎 Grokking Algorithms - Aditya Y. Bhargava](https://www.manning.com/books/grokking-algorithms)
+- [👶 💎 Grokking Algorithms - Aditya Y. Bhargava](https://www.manning.com/books/grokking-algorithms)
 - [💎 Introduction to Algorithms - Thomas H. Cormen, Charles E. Leiserson, Ronald L. Rivest and Clifford Stein](http://mitpress.mit.edu/9780262367509/introduction-to-algorithms/)
 - [Collection of various algorithms in mathematics, machine learning, computer science, physics, etc implemented in C for educational purposes](https://github.com/TheAlgorithms/C)
 - [Udemy – Embedded Systems State Machines & Data Structures](https://www.udemy.com/course/embedded-systems-state-machines-data-structures-like-a-pro/)
@@ -253,11 +316,13 @@ _________________
 
 #### Design Patterns
 
+- [Practical Design Patterns: Opaque Pointers and Objects in C](https://interrupt.memfault.com/blog/opaque-pointers)
 - [💎 Design Patterns for Embedded Systems in C - Bruce Powel Douglass](https://www.oreilly.com/library/view/design-patterns-for/9781856177078/)
-- [Making Embedded Systems: Design Patterns for Great Software - Elecia White](https://www.oreilly.com/library/view/making-embedded-systems/9781449308889/)
+- [💎 Making Embedded Systems: Design Patterns for Great Software - Elecia White](https://www.oreilly.com/library/view/making-embedded-systems/9781449308889/)
 
 #### State Machines / UML
 
+- [Programming embedded systems the easy way – with state machines](https://www.embedded.com/programming-embedded-systems-the-easy-way-with-state-machines/)
 - [State Machines (YouTube Playlist)](https://www.youtube.com/playlist?list=PLPW8O6W-1chxym7TgIPV9k5E8YJtSBToI)
 - [Event-Driven Programming (YouTube Playlist)](https://www.youtube.com/playlist?list=PLPW8O6W-1chx8Y7Oq2gOE0NUPXmQxu2Wr)
 - [Embedded System Design using UML State Machines](https://www.udemy.com/course/embedded-system-design-using-uml-state-machines/)
@@ -274,38 +339,64 @@ _________________
 
 #### C
 
-- [W3Schools C Tutorial](https://www.w3schools.com/c/index.php)
-- [C Programming for Beginners | Full Course](https://www.youtube.com/watch?v=ssJY5MDLjlo)
+- [👶 W3Schools C Tutorial](https://www.w3schools.com/c/index.php)
+- [👶 C Programming for Beginners | Full Course](https://www.youtube.com/watch?v=ssJY5MDLjlo)
 - [C Programming Tutorials (YouTube Playlist)](https://www.youtube.com/playlist?list=PLA1FTfKBAEX4hblYoH6mnq0zsie2w6Wif)
 - [💎 The C Programming Language -  Brian W. Kernighan, Dennis M. Ritchie ](https://www.amazon.com/dp/0131103628?ref_=cm_sw_r_cp_ud_dp_KRZ8M1WTXWVG0HMSRBXA)
 - [C How to Program -  Paul Deitel, Harvey Deitel ](https://deitel.com/c-how-to-program-9-e/)
 - [Effective C - An Introduction to Professional C Programming - Robert C. Seacord](https://nostarch.com/Effective_C)
+- [newlib C Library Documentation](https://sourceware.org/newlib/docs.html)
+- [The GNU C Library (glibc)](https://www.gnu.org/software/libc/documentation.html)
+- [From Zero to main(): Bare metal C](https://interrupt.memfault.com/blog/zero-to-main-1)
+- [From Zero to main(): Bootstrapping libc with Newlib](https://interrupt.memfault.com/blog/boostrapping-libc-with-newlib)
 
 #### C++
 
 - [Modern C++ in Embedded Development: (Don't Fear) The ++](https://www.embeddedrelated.com/showarticle/1532.php)
 - [C++ On Embedded Systems](https://blog.mbedded.ninja/programming/languages/c-plus-plus/cpp-on-embedded-systems/)
-- [C++ Tutorial for Beginners - Full Course](https://www.youtube.com/watch?v=vLnPwxZdW4Y)
+- [👶 C++ Tutorial for Beginners - Full Course](https://www.youtube.com/watch?v=vLnPwxZdW4Y)
 - [C++ by The Cherno (YouTube Playlist)](https://youtube.com/playlist?list=PLlrATfBNZ98dudnM48yfGUldqGD0S4FFb)
+- [Effective Modern C++ - Scott Meyers](https://www.oreilly.com/library/view/effective-modern-c/9781491908419/)
 
 #### Assembly
 
+- [👶 Introduction to ARM Assembly Basics](https://azeria-labs.com/writing-arm-assembly-part-1/)
 - [Udemy – ARM GNU Assembly Programming From Ground Up](https://www.udemy.com/course/arm-gnu-assembly-programming-from-ground-uptm/)
 - [Assembly Language Programming with ARM – Full Tutorial for Beginners](https://www.youtube.com/watch?v=gfmRrPjnEw4)
+- [How to Use Inline Assembly Language in C Code](https://gcc.gnu.org/onlinedocs/gcc/extensions-to-the-c-language-family/how-to-use-inline-assembly-language-in-c-code.html)
 
 #### Python
 
-- [Real Python: Python Tutorials](https://realpython.com/)
-- [Python Crash Course - Eric Matthes](https://a.co/d/hSMTJwE)
+- [Python for embedded systems testing](https://www.elsys-design.com/en/python-embedded-systems-testing/)
+- [👶 The Python Handbook – Learn Python for Beginners](https://www.freecodecamp.org/news/the-python-handbook/)
+- [💎 Real Python: Python Tutorials](https://realpython.com/)
+- [👶 💎 Python Crash Course - Eric Matthes](https://a.co/d/hSMTJwE)
+
+##### Python for Microcontrollers
+
 - [MicroPython - Python for microcontrollers](https://micropython.org/)
+- [MicroPython 101 | Arduino Documentation](https://docs.arduino.cc/micropython-course/)
 - [CircuitPython](https://circuitpython.org/)
+- [The Pros and Cons of Designing Embedded Systems with MicroPython](https://www.designnews.com/electronics-test/pros-and-cons-designing-embedded-systems-micropython)
 
 #### Rust
 
+- [5 roadblocks to Rust adoption in embedded systems](https://www.embedded.com/5-roadblocks-to-rust-adoption-in-embedded-systems/)
 - [The Embedded Rust Book](https://docs.rust-embedded.org/book/)
 - [The Future of Programming: Rust (YouTube Playlist)](https://www.youtube.com/playlist?list=PLc7W4b0WHTAUAEAguiqpNa5H0QqXJIJI6)
 - [Community Rust support projects for STM32 microcontrollers](https://github.com/stm32-rs)
 - [Rust on ESP Community](https://github.com/esp-rs)
+- [Rust on STM32: Getting started](https://jonathanklimt.de/electronics/programming/embedded-rust/rust-on-stm32-2/)
+- [From Zero to main(): Bare metal Rust](https://interrupt.memfault.com/blog/zero-to-main-rust-1)
+- [Writing an OS in Rust - Philipp Oppermann's blog](https://os.phil-opp.com/)
+- [Kernel Driver with Rust in 2022](https://not-matthias.github.io/posts/kernel-driver-with-rust/)
+
+#### Zig
+
+- [Testing Zig for embedded development](https://www.kuon.ch/post/2022-06-22-zig-embed/)
+- [Zig Embedded Group](https://github.com/ZigEmbeddedGroup)
+- [MicroZig - Unified abstraction layer and HAL for several microcontrollers](https://github.com/ZigEmbeddedGroup/microzig)
+- [Zig Bare Metal Programming on STM32F103 — Booting up](https://maldus512.medium.com/zig-bare-metal-programming-on-stm32f103-booting-up-b0ecdcf0de35)
 
 _________________
 
@@ -314,7 +405,11 @@ _________________
 #### GCC & Make
 
 - [GCC and Make - Compiling, Linking and Building C/C++ Applications](https://www3.ntu.edu.sg/home/ehchua/programming/cpp/gcc_make.html)
-- [Computer Systems: A Programmer's Perspective - Randal E. Bryant, David R. O'Hallaron | ➡️ Chapter 7: Linking](http://csapp.cs.cmu.edu/3e/home.html)
+- [A Shallow Dive into GNU Make](https://interrupt.memfault.com/blog/gnu-make-guidelines#a-shallow-dive-into-gnu-make)
+- [The Best and Worst GCC Compiler Flags For Embedded](https://interrupt.memfault.com/blog/best-and-worst-gcc-clang-compiler-flags)
+- [Building STM32 projects from scratch with cross platform tools like Make, CMake and arm-gcc compiler toolchain (YouTube Playlist)](https://www.youtube.com/playlist?list=PLEg2mgYz66IOcHRvvUDf9O1ZCGy58M1Bt)
+- [From Zero to main(): Demystifying Firmware Linker Scripts](https://interrupt.memfault.com/blog/how-to-write-linker-scripts-for-firmware)
+- [Bare Metal - From zero to blink](https://www.linuxembedded.fr/2021/02/bare-metal-from-zero-to-blink)
 
 #### CMake
 
@@ -329,15 +424,18 @@ _________________
 #### Docker
 
 - [Docker Docs](https://docs.docker.com/get-started/)
+- [Docker Cheat Sheet](https://dockerlabs.collabnix.com/docker/cheatsheet/)
+- [👶 Docker for Dummies](https://dev.to/stevenmcgown/docker-for-dummies-2bff)
 - [Introduction to Docker for the Embedded Developer](https://www.youtube.com/watch?v=Fz7ou-VBk-w)
 - [Intro to CI/CD Part 1: Getting Started with Docker | Digi-Key Electronics](https://youtu.be/1nxGcfIm-TU)
+- [A Modern C Development Environment](https://interrupt.memfault.com/blog/a-modern-c-dev-env)
 _________________
 
 ### Version Control
 
 #### Git
 
-- [Git Tutorial for Beginners: Learn Git in 1 Hour](https://www.youtube.com/watch?v=8JJ101D3knE)
+- [👶 Git Tutorial for Beginners: Learn Git in 1 Hour](https://www.youtube.com/watch?v=8JJ101D3knE)
 - [Git for Professionals Tutorial - Tools & Concepts for Mastering Version Control with Git](https://www.youtube.com/watch?v=Uszj_k0DGsg)
 
 #### SVN (Subversion)
@@ -351,18 +449,22 @@ _________________
 - [What Is a Microcontroller? The Defining Characteristics and Architecture of a Common Component](https://www.allaboutcircuits.com/technical-articles/what-is-a-microcontroller-introduction-component-characteristics-component/)
 - [How to Choose the Right Microcontroller for Your Application ](https://www.allaboutcircuits.com/technical-articles/how-to-choose-the-right-microcontroller-for-your-application/)
 - [How to Read a Microcontroller Datasheet: Introduction and First Steps](https://www.allaboutcircuits.com/technical-articles/how-to-read-a-microcontroller-datasheet-introduction-and-first-steps2/)
-- [💎 Make: AVR Programming - Elliot Williams](https://www.oreilly.com/library/view/make-avr-programming/9781449356484/)
+- [👶 Make: AVR Programming - Elliot Williams](https://www.oreilly.com/library/view/make-avr-programming/9781449356484/)
+- [👶 💎 NewbieHack - Microcontroller Tutorial - A Beginners Guide (AVR)](https://www.youtube.com/playlist?list=PLE72E4CFE73BD1DE1)
+- [👶 Getting Started with STM32 and Nucleo (YouTube Playlist)](https://youtube.com/playlist?list=PLEBQazB0HUyRYuzfi4clXsKUSgorErmBv)
 - [💎 Mastering STM32 - Carmine Noviello](https://leanpub.com/mastering-stm32-2nd)
+- [👶 Intro to Raspberry Pi Pico and RP2040 (YouTube Playlist)](https://www.youtube.com/playlist?list=PLEBQazB0HUyQO6rJxKr2umPCgmfAU-cqR)
+- [Getting started with STM32: STM32 step-by-step](https://wiki.st.com/stm32mcu/wiki/Category:Getting_started_with_STM32_:_STM32_step_by_step)
 - [Getting Started With AVR (YouTube Playlist)](https://www.youtube.com/playlist?list=PLtQdQmNK_0DRhBWYZ32BEILOykXLpJ8tP)
 - [Fundamentals of Microcontrollers - Arduino bare-metal breakdown (YouTube Playlist)](https://www.youtube.com/playlist?list=PLNyfXcjhOAwOF-7S-ZoW2wuQ6Y-4hfjMR)
-- [Getting Started with STM32 and Nucleo (YouTube Playlist)](https://youtube.com/playlist?list=PLEBQazB0HUyRYuzfi4clXsKUSgorErmBv)
 - [Bare Metal Embedded Programming: Theory and Practice Using STM32 (YouTube Playlist)](https://www.youtube.com/playlist?list=PL4cGeWgaBTe155QQSQ72DksLIjBn5Jn2Z)
 - [Beginning STM32: Developing with FreeRTOS, libopencm3 and GCC - Warren Gay](https://link.springer.com/book/10.1007/978-1-4842-3624-6)
-- [Intro to Raspberry Pi Pico and RP2040 (YouTube Playlist)](https://www.youtube.com/playlist?list=PLEBQazB0HUyQO6rJxKr2umPCgmfAU-cqR)
 - [Udemy – Microcontroller Embedded C Programming: Absolute Beginners](https://www.udemy.com/course/microcontroller-embedded-c-programming/)
 - [Udemy – Embedded Systems STM32 Low-Layer APIs(LL) Driver Development](https://www.udemy.com/course/embedded-systems-stm32-low-level-ll-driver-development/)
 - [Udemy – Embedded Systems STM32 HAL APIs Driver Development](https://www.udemy.com/course/embedded-systems-stm32-hal-apis-driver-development/)
 - [Embedded System Design with ARM Cortex-M Microcontrollers: Applications with C, C++ and MicroPython - Cem Ünsalan, Hüseyin Deniz Gürhan, Mehmet Erkin Yücel](https://link.springer.com/book/10.1007/978-3-030-88439-0)
+- [💎 Embedded Systems Design using the MSP430FR2355 LaunchPad - Brock J. LaMeres](https://link.springer.com/book/10.1007/978-3-030-40574-8)
+- [💎 Building Embedded Systems: Programmable Hardware - Changyi Gu](https://link.springer.com/book/10.1007/978-1-4842-1919-5)
 - [Awesome Embedded: A curated list of awesome embedded programming](https://github.com/nhivp/Awesome-Embedded)
 
 #### GPIO
@@ -399,6 +501,7 @@ _________________
 
 #### Watchdog
 
+- [A Guide to Watchdog Timers for Embedded Systems](https://interrupt.memfault.com/blog/firmware-watchdog-best-practices)
 - [The Watchdog Timer on Arduino](https://www.youtube.com/watch?v=AzZBgH67mgE)
 - [WATCHDOGS in STM32 || IWDG and WWDG || CubeIDE](https://www.youtube.com/watch?v=AelNsnpfbcM)
 
@@ -412,6 +515,7 @@ _________________
 
 #### DMA
 
+- [Introduction to Direct Memory Access (DMA)](https://www.youtube.com/watch?v=M16l_ymlfcs)
 - [STM32 DMA PT 1](https://www.youtube.com/watch?v=yvLHtXJ_KSg)
 - [STM32 DMA PT 2](https://www.youtube.com/watch?v=Kb8dX18xYuo)
 - [Getting Started With STM32 & Nucleo Part 4: Working with ADC and DMA - Maker.io](https://www.youtube.com/watch?v=EsZLgqhqfO0)
@@ -443,12 +547,13 @@ _________________
 - [Udemy – Functional Safety According to ISO 26262 - Crash Course](https://www.udemy.com/course/iso-26262-crash-course/)
 - [A Guide to MISRA C Coding Standards - MISRA C and MISRA C++](https://www.perforce.com/resources/qac/misra-c-cpp)
 - [A Firmware Development Standard by Jack Ganssle](http://www.ganssle.com/fsm.htm)
+- [Safety-critical Embedded systems: How to prepare for software development](https://www.nagarro.com/en/blog/embedded-software-development-safety-critical-systems)
 
 _________________
 
 ### Simulation / Emulation Tools
 
-- [Wokwi - Online ESP32, STM32, Arduino Simulator](https://wokwi.com/)
+- [👶 Wokwi - Online ESP32, STM32, Arduino Simulator](https://wokwi.com/)
 
 #### [QEMU](https://www.qemu.org/)
 
@@ -470,7 +575,7 @@ _________________
 
 ### Interfaces, Protocols & Communication Technologies
 
-#### ‌Basic
+#### ‌Basic Protocols
 
 - [Understanding Serial Protocols](https://www.youtube.com/watch?v=LEz5UCN3aHA)
 - [PROTOCOLS: UART - I2C - SPI - Serial communications #001](https://www.youtube.com/watch?v=IyGwvGzrqp8)
@@ -486,6 +591,7 @@ _________________
 ##### I2C
 
 - [Understanding I2C](https://www.youtube.com/watch?v=CAvawEcxoPU)
+- [I2C in a Nutshell](https://interrupt.memfault.com/blog/i2c-in-a-nutshell)
 - [STM32 I2C SLAVE (YouTube Playlist)](https://www.youtube.com/playlist?list=PLfIJKC1ud8gj_P7Qb28aTr0t92uk_vwg0)
 
 ##### SPI
@@ -502,6 +608,7 @@ _________________
 
 ##### I3C
 
+- [What is I3C®?](https://www.youtube.com/watch?v=g3TBNHec5Ec)
 - [MIPI I3C & MIPI I3C Basic](https://www.mipi.org/specifications/i3c-sensor-specification)
 - [I3C Protocol: Understanding and Debug](https://prodigytechno.com/mipi-i3c-protocol-debug/)
 - [MIPI I3C Basic - The next generation sensor interface enabling low-power IoT applications](https://www.youtube.com/watch?v=xWKxZp_9RFQ)
@@ -511,32 +618,58 @@ _________________
 - [1-Wire® Technology Overview](https://www.youtube.com/watch?v=CjH-OztKe00)
 
 
-#### Audio
+#### Digital Audio Protocols
 
 ##### I2S
 
+- [Introduction to the I2S Interface](https://www.allaboutcircuits.com/technical-articles/introduction-to-the-i2s-interface/)
 - [Building a Digital Music Player with I2S?! What is I2S! EB#45](https://www.youtube.com/watch?v=qNLvoSQCx60)
+- [UM11732 - I2S bus specification](https://www.nxp.com/docs/en/user-manual/UM11732.pdf)
 
-#### Image & Video
+##### PCM
+
+- [HUAWEI LGA Module - PCM Audio Design Guide](https://www.paoli.cz/out/media/HUAWEI%20LGA%20Module%20PCM%20Audio%20Design%20Guide-V100R001_04(1).pdf)
+- [PCM Terminology and Concepts](https://larsimmisch.github.io/pyalsaaudio/terminology.html)
+
+#### Image & Video Protocols
 
 ##### CSI-2
 
 - [MIPI Camera Serial Interface 2](https://www.mipi.org/specifications/csi-2)
 - [Tutorial: MIPI CSI-2](https://www.youtube.com/watch?v=8REu_h7bzHM)
 
-#### Wireless
+##### HDMI
+
+- [TI Precision Labs - Video Interface: What are HDMI & Dual-Mode DisplayPort?](https://www.youtube.com/watch?v=jCO7Up1rzJc)
+- [HDMI 2.1 & TMDS Crash Course - ENMU EET 457 - Presentation](https://www.youtube.com/watch?v=5acgSK0kWTE)
+
+#### Wireless Protocols
 
 ##### Bluetooth / BLE
 
+- [Bluetooth Basics](https://learn.sparkfun.com/tutorials/bluetooth-basics/all)
+- [Bluetooth Low Energy: A Primer](https://interrupt.memfault.com/blog/bluetooth-low-energy-a-primer)
+- [A Practical Guide to BLE Throughput](https://interrupt.memfault.com/blog/ble-throughput-primer)
+- [SparkFun According to Pete #49 - How Bluetooth Works](https://www.youtube.com/watch?v=zJqGLWQGyvk)
 - [Bluetooth Low Energy Fundamentals - Nordic Semiconductor](https://academy.nordicsemi.com/courses/bluetooth-low-energy-fundamentals/)
 - [Bluetooth Overview - ESP-IDF Programming Guide](https://docs.espressif.com/projects/esp-idf/en/latest/esp32/api-guides/bluetooth.html)
 
 ##### Wi-Fi
 
+- [802.11 How WiFi Works - Wireless Networks | Computer Networks Ep. 7.3 | Kurose & Ross](https://www.youtube.com/watch?v=vvhEnr52UOU)
+- [802.11 Frame Analysis](https://www.youtube.com/watch?v=ITAJb3v5VKQ)
 - [Wi-Fi Driver - ESP-IDF Programming Guide](https://docs.espressif.com/projects/esp-idf/en/latest/esp32/api-guides/wifi.html)
 - [ESP32 Set an Access Point (AP) using ESP-IDF](https://esp32tutorials.com/esp32-access-point-ap-esp-idf/)
 - [ESP32 ESP-IDF Connect with WiFi – Station Mode Example](https://esp32tutorials.com/esp32-esp-idf-connect-wifi-station-mode-example/)
 
+##### LoRa / LoRaWAN
+
+- [The Arduino Guide to LoRa® and LoRaWAN®](https://docs.arduino.cc/learn/communication/lorawan-101)
+- [💎 The Things Fundamentals on LoRaWAN!](https://www.thethingsnetwork.org/docs/lorawan/)
+- [What are LoRa® and LoRaWAN®?](https://lora-developers.semtech.com/documentation/tech-papers-and-guides/lora-and-lorawan/)
+- [#112 LoRa / LoRaWAN De-Mystified / Tutorial](https://www.youtube.com/watch?v=hMOwbNUpDQA)
+- [ESP32 with LoRa using Arduino IDE – Getting Started](https://randomnerdtutorials.com/esp32-lora-rfm95-transceiver-arduino-ide/)
+
 ##### Zigbee
 
 - [What is ZIGBEE And How It Works?](https://www.youtube.com/watch?v=THtVeaxnd9E)
@@ -552,7 +685,7 @@ _________________
 
 - [What is Matter? Unifying IoT Devices for the Smart Home | Digi-Key Electronics](https://youtu.be/vJIEfih9bl0)
 
-#### Industrial
+#### Industrial Protocols
 
 ##### Modbus
 
@@ -572,7 +705,7 @@ _________________
 - [Simple ESP32 IoT Sensor Node Tutorial: WiFi Enabled MQTT Sensor Data Node](https://www.youtube.com/watch?v=x5A5S0hoyJ0)
 - [Cellular IoT Fundamentals - Nordic Semiconductor](https://academy.nordicsemi.com/courses/cellular-iot-fundamentals/)
 
-#### High-Speed
+#### High-Speed Protocols
 
 ##### Ethernet
 
@@ -594,7 +727,7 @@ _________________
 - [PCIe QuickLearn (YouTube Playlist)](https://www.youtube.com/playlist?list=PL9B4edd-p2ajuP4dBHcnhtHKoZKkoR1R4)
 - [PCIe Protocol (YouTube Playlist)](https://www.youtube.com/playlist?list=PLZe4P0P_9Cosd0i2ha_QRdWlR1iZ0yVG4)
 
-#### Automotive
+#### Automotive Protocols
 
 ##### CAN
 
@@ -606,7 +739,7 @@ _________________
 - [J1939 Explained - A Simple Intro [v2.0 | 2021]](https://www.youtube.com/watch?v=vlqxu9ojbHg)
 - [Unified Diagnostic Services (UDS) Explained - A Simple Intro [2022]](https://www.youtube.com/watch?v=CV_B8tJgI5E)
 
-#### Network
+#### Network Protocols
 
 - [Networking Fundamentals - Practical Networking (YouTube Playlist)](https://www.youtube.com/playlist?list=PLIFyRwBY_4bRLmKfP1KnZA6rZbRHtxmXi)
 - [TCP vs UDP - Explaining Facts and Debunking Myths - TCP Masterclass](https://www.youtube.com/watch?v=jE_FcgpQ7Co)
@@ -614,11 +747,13 @@ _________________
 - [UDP doesn't suck! It's the BEST L4 protocol for THESE types of applications...](https://www.youtube.com/watch?v=LaDRWycC7Iw)
 - [Networking tutorial - Ben Eater (YouTube Playlist)](https://www.youtube.com/playlist?list=PLowKtXNTBypH19whXTVoG3oKSuOcw_XeW)
 - [💎 Hands-On Network Programming with C - Lewis Van Winkle](https://www.amazon.com/exec/obidos/ASIN/1789349869/aoeu-20)
+- [💎 Network Algorithmics - George Varghese, Jun Xu](https://www.oreilly.com/library/view/network-algorithmics-2nd/9780128099865/)
+- [tcpdump & libpcap libraries](https://www.tcpdump.org/)
 - [lwIP - A Lightweight TCP/IP stack](https://savannah.nongnu.org/projects/lwip/)
 - [lwIP (ESP-IDF)](https://docs.espressif.com/projects/esp-idf/en/latest/esp32/api-guides/lwip.html)
 - [Developing applications on STM32Cube with LwIP TCP/IP stack](https://www.st.com/resource/en/user_manual/um1713-developing-applications-on-stm32cube-with-lwip-tcpip-stack-stmicroelectronics.pdf)
 
-#### Cellular
+#### Cellular Communication
 
 ##### GSM / LTE
 
@@ -630,7 +765,7 @@ _________________
 
 _________________
 
-### Memories
+### Memory Technologies
 
 - [Memory Options for Embedded Systems: How to Select the Right Memory Configuration](https://www.qt.io/embedded-development-talk/memory-options-for-embedded-systems-how-to-select-the-right-memory-configuration)
 
@@ -644,6 +779,10 @@ _________________
 
 - [What is a eMMC? Intro, Comparing to Other Storage, and Upgrading. SSD, M.2](https://www.youtube.com/watch?v=vGatKmqYxEA)
 
+#### SD Card
+
+- [Interfacing with an SD Card](https://www.youtube.com/watch?v=g40tUdjZ-Sk)
+
 #### EEPROM
 
 - [Using EEPROM with Arduino - Internal & External](https://www.youtube.com/watch?v=ShqvATqXA7g)
@@ -686,20 +825,28 @@ _________________
 
 #### Operating System Fundamentals
 
+- [👶 Putting the “You” in CPU](https://cpu.land/)
+- [👶 The little book about OS development](https://littleosbook.github.io/)
+- [👶 Operating Systems: From 0 to 1](https://github.com/tuhdo/os01/blob/master/Operating_Systems_From_0_to_1.pdf)
 - [💎 Operating Systems: Three Easy Pieces -  Remzi H Arpaci-Dusseau, Andrea C Arpaci-Dusseau](https://pages.cs.wisc.edu/~remzi/OSTEP/)
-- [Modern Operating Systems - Andrew S. Tanenbaum, Herbert Bos](https://www.pearson.com/en-us/subject-catalog/p/modern-operating-systems/P200000003295)
+- [💎 Modern Operating Systems - Andrew S. Tanenbaum, Herbert Bos](https://www.pearson.com/en-us/subject-catalog/p/modern-operating-systems/P200000003295)
+- [Writing an OS in Rust - Philipp Oppermann's blog](https://os.phil-opp.com/)
 
 
 #### Embedded Linux
 
 - [FreeRTOS vs Linux for Embedded Systems](https://www.bytesnap.com/news-blog/freertos-vs-linux-embedded-systems/)
-- [Introduction to Embedded Linux (YouTube Playlist)](https://youtube.com/playlist?list=PLEBQazB0HUyTpoJoZecRK6PpDG31Y7RPB)
-- [Mastering Embedded Linux Programming - Chris Simmonds](https://www.packtpub.com/product/mastering-embedded-linux-programming-third-edition/9781789530384)
+- [Linux Basics (LPIC 1)](https://linux1st.com/)
+- [👶 Introduction to Embedded Linux (YouTube Playlist)](https://youtube.com/playlist?list=PLEBQazB0HUyTpoJoZecRK6PpDG31Y7RPB)
+- [Mastering Embedded Linux Series - George Hilliard's blog](https://www.thirtythreeforty.net/series/mastering-embedded-linux/)
+- [💎 Mastering Embedded Linux Programming - Chris Simmonds](https://www.packtpub.com/product/mastering-embedded-linux-programming-third-edition/9781789530384)
 - [Linux From Scratch - step-by-step instructions for building your own custom Linux system](https://www.linuxfromscratch.org/)
+- [Automotive Grade Linux (AGL)](https://docs.automotivelinux.org/)
 
 ##### Linux Kernel
 
-- [The Linux Kernel](https://tldp.org/LDP/tlk/)
+- [👶 Writing a Simple Linux Kernel Module](https://blog.sourcerer.io/writing-a-simple-linux-kernel-module-d9dc3762c234)
+- [The Linux Kernel - David A Rusling](https://tldp.org/LDP/tlk/)
 - [💎 The Linux Programming Interface - Michael Kerrisk](https://man7.org/tlpi/)
 - [How Linux Works - Brian Ward](https://nostarch.com/howlinuxworks3)
 - [Practical System Programming with C: Pragmatic Example Applications in Linux and Unix-Based Operating Systems - Sri Manikanta Palakollu](https://link.springer.com/book/10.1007/978-1-4842-6321-1)
@@ -707,7 +854,9 @@ _________________
 ##### Linux Device Drivers
 
 - [💎 Linux Device Drivers -  Jonathan Corbet, Alessandro Rubini, Greg Kroah-Hartman](https://lwn.net/Kernel/LDD3/)
+- [The Linux Kernel Module Programming Guide](https://sysprog21.github.io/lkmpg/)
 - [Mastering Linux Device Driver Development - John Madieu](https://www.packtpub.com/product/mastering-linux-device-driver-development/9781789342048)
+- [Kernel Driver with Rust in 2022](https://not-matthias.github.io/posts/kernel-driver-with-rust/)
 
 ##### U-Boot
 
@@ -717,11 +866,14 @@ _________________
 
 - [Buildroot Documentation](https://buildroot.org/docs.html)
 - [Introduction to Embedded Linux Part 1 - Buildroot | Digi-Key Electronics](https://www.youtube.com/watch?v=9vsu67uMcko)
+- [https://rickcarlino.com/2021/building-tiny-raspberry-pi-linux-images-with-buildroot.html](https://rickcarlino.com/2021/building-tiny-raspberry-pi-linux-images-with-buildroot.html)
 
 ##### Yocto
 
+- [Yocto Project Quick Build](https://docs.yoctoproject.org/brief-yoctoprojectqs/index.html)
 - [💎 Yocto Project Documentation](https://docs.yoctoproject.org/index.html)
 - [Introduction to Embedded Linux Part 2 - Yocto Project | Digi-Key Electronics](https://www.youtube.com/watch?v=2-PwskQrZac&t=7s)
+- [Build Linux Image for Raspberry Pi board using Yocto Project](https://tutorialadda.com/yocto/create-your-own-linux-image-for-the-raspberry-pi-board-using-yocto-project)
 - [Yocto Project Tutorial Series (Basic to Advance) (YouTube Playlist)](https://www.youtube.com/playlist?list=PLwqS94HTEwpQmgL1UsSwNk_2tQdzq3eVJ)
 - [Udemy – Embedded Linux using Yocto](https://www.udemy.com/course/embedded-linux-using-yocto/)
 - [💎 Embedded Linux Systems with the Yocto Project - Rudolf J.Streif](https://www.oreilly.com/library/view/embedded-linux-systems/9780133443301/)
@@ -739,12 +891,13 @@ _________________
 - [CUDA C++ Programming Guide](https://docs.nvidia.com/cuda/cuda-c-programming-guide/index.html)
 - [C++ Concurrency in Action - Anthony Williams](https://www.manning.com/books/c-plus-plus-concurrency-in-action)
 
-##### Inter Process Communication (IPC)
+##### Inter-Process Communication (IPC)
 
 - [Inter Process Communication (IPC)](https://www.scaler.com/topics/operating-system/inter-process-communication-in-os/)
 - [What Is Inter-Process Communication In Linux?](https://www.scaler.com/topics/ipc-in-linux/)
 - [Udemy – Linux Inter Process Communication (IPC) from Scratch in C](https://www.udemy.com/course/linuxipc/)
 - [Udemy – Multi-Threading and IPC with Qt 5 C++](https://www.udemy.com/course/multi-threading-and-ipc-with-qt-c-plus-plus/)
+- [D-Bus Tutorial](https://dbus.freedesktop.org/doc/dbus-tutorial.html)
 
 ##### Qt Framework
 
@@ -756,17 +909,20 @@ _________________
 ##### RTOS Basics
 
 - [Bare-metal and RTOS Based Embedded Systems](https://microcontrollerslab.com/difference-bare-metal-and-rtos-based-embedded-systems/)
+- [RTOS vs. Bare Metal: Navigating Performance, Complexity, and Efficiency](https://weston-embedded.com/support/media-articles/119-rtos-vs-bare-metal-navigating-performance-complexity-and-efficiency)
 - [The Pros and Cons of RTOS vs Bare Metal: Which Will You Choose?](https://medium.com/@lanceharvieruntime/the-pros-and-cons-of-rtos-vs-bare-metal-which-will-you-choose-756e33ba6df7)
 - [FreeRTOS vs Linux for Embedded Systems](https://www.bytesnap.com/news-blog/freertos-vs-linux-embedded-systems/)
 - [Real-Time Systems Concepts](https://micrium.atlassian.net/wiki/spaces/osiidoc/pages/163855/Real-Time+Systems+Concepts)
 - [RTOS Fundamentals](https://www.freertos.org/implementation/a00002.html)
+- [A Simple Scheduler via an Interrupt-driven Actor Model](https://interrupt.memfault.com/blog/hardware-actor-scheduler)
+- [ARM Cortex-M RTOS Context Switching](https://interrupt.memfault.com/blog/cortex-m-rtos-context-switching)
 - [RTOS (YouTube Playlist)](https://www.youtube.com/playlist?list=PLPW8O6W-1chyrd_Msnn4LD6LBs2slJITs)
 - [Beyond the RTOS (YouTube Playlist)](https://www.youtube.com/playlist?list=PLPW8O6W-1chytjkg63-tM7MI0BvGxxPIP)
 
 ##### FreeRTOS
 
 - [FreeRTOS - Market leading RTOS](https://www.freertos.org)
-- [Introduction to RTOS (YouTube Playlist)](https://www.youtube.com/playlist?list=PLEBQazB0HUyQ4hAPU1cJED6t3DU0h34bz)
+- [👶 Introduction to RTOS (YouTube Playlist)](https://www.youtube.com/playlist?list=PLEBQazB0HUyQ4hAPU1cJED6t3DU0h34bz)
 - [Mastering the FreeRTOS Real Time Kernel - a Hands On Tutorial Guide](https://www.freertos.org/Documentation/RTOS_book.html)
 - [Getting Started With STM32 and Nucleo Part 3: FreeRTOS - How To Run Multiple Threads w/ CMSIS-RTOS](https://www.youtube.com/watch?v=CdpgqpuPSyQ)
 - [Hands-On RTOS with Microcontrollers: Building real-time embedded systems using FreeRTOS, STM32 MCUs, and SEGGER debug tools - Brian Amos](https://a.co/d/11MSPlo)
@@ -819,6 +975,7 @@ _________________
 
 - [Azure RTOS - Making embedded IoT development and connectivity easy](https://azure.microsoft.com/en-us/services/rtos/)
 - [Microsoft Azure RTOS documentation](https://learn.microsoft.com/en-us/azure/rtos/)
+- [Azure RTOS ThreadX](https://github.com/azure-rtos/threadx)
 
 _________________
 
@@ -864,18 +1021,27 @@ _________________
 
 ### Debugging
 
+- [Using Asserts in Embedded Systems](https://interrupt.memfault.com/blog/asserts-in-embedded-systems)
+
 #### JTAG / SWD
 
+- [A Deep Dive into ARM Cortex-M Debug Interfaces](https://interrupt.memfault.com/blog/a-deep-dive-into-arm-cortex-m-debug-interfaces)
 - [Guide: Connecting your debugger](https://stm32-base.org/guides/connecting-your-debugger.html)
 - [STM32 + SWD + ST-Link + CubeIDE | Debugging on Custom Hardware Tutorial - Phil's Lab #4](https://www.youtube.com/watch?v=qMUzLU636s8)
 
 #### GDB
 
+- [Advanced GDB Usage](https://interrupt.memfault.com/blog/advanced-gdb)
+- [How do breakpoints even work?](https://interrupt.memfault.com/blog/cortex-m-breakpoints)
+- [GNU GDB Debugger Command Cheat Sheet](http://www.yolinux.com/TUTORIALS/GDB-Commands.html)
+- [gdbgui - A browser-based frontend to gdb (gnu debugger) ](https://www.gdbgui.com/)
 - [everyone needs to stop using print debugging (do THIS instead)](https://www.youtube.com/watch?v=3T3ZDquDDVg)
 - [GDB is REALLY easy! Find Bugs in Your Code with Only A Few Commands](https://www.youtube.com/watch?v=Dq8l1_-QgAc)
+- [Introduction to ARM Semihosting](https://interrupt.memfault.com/blog/arm-semihosting)
 
 #### OpenOCD
 
+- [OpenOCD - GitHub repository](https://github.com/openocd-org/openocd)
 - [This Is 100% How You Should Be Debugging | How to Use OpenOCD to Debug Embedded Software with GDB](https://www.youtube.com/watch?v=_1u7IOnivnM)
 
 _________________
@@ -885,22 +1051,20 @@ _________________
 - [Embedded Testing](https://artoftesting.com/embedded-testing)
 - [What is Embedded Testing in Software Testing?](https://www.guru99.com/embedded-software-testing.html)
 - [Verification vs Validation in Embedded Software](https://www.parasoft.com/blog/verification-vs-validation-in-embedded-software/)
-- [Testing: Unit VS Integration VS Regression VS Acceptance](https://medium.com/@touseefmurtaza1993/testing-unit-vs-integration-vs-regression-vs-acceptance-a3e190cc54dd)
+
+#### Test Driven Development (TDD)
+
 - [💎 Test Driven Development for Embedded C - James Grenning](https://www.amazon.com/Driven-Development-Embedded-Pragmatic-Programmers/dp/193435662X)
-
-#### CI/CD Flow
-
-- [Intro to CI/CD Part 1: Getting Started with Docker | Digi-Key Electronics](https://youtu.be/1nxGcfIm-TU)
-- [Intro to CI/CD Part 2: Getting Started with GitHub Actions | Digi-Key Electronics](https://youtu.be/8pyqbYDYkRs)
-- [How to Build a Continuous Integration and Delivery Process for Embedded Software](https://medium.com/jumperiot/how-to-build-a-continuous-integration-and-delivery-flow-for-embedded-software-b0b5bf220a2)
-- [Continuous Integration & Continuous Delivery for Embedded Systems (Whitepaper)](https://www.parasoft.com/white-paper/ci-cd-for-embedded-systems/)
-- [What is DevOps in an Embedded Device Company?](https://www.linkedin.com/pulse/what-devops-embedded-device-company-john-macdonald/)
+- [Testing: Unit VS Integration VS Regression VS Acceptance](https://medium.com/@touseefmurtaza1993/testing-unit-vs-integration-vs-regression-vs-acceptance-a3e190cc54dd)
+- [Firmware Testing with Renode and GitHub Actions](https://interrupt.memfault.com/blog/test-automation-renode)
+- [Balancing Test Coverage vs. Overhead](https://interrupt.memfault.com/blog/testing-vs-overhead)
 
 #### Unit Testing
 
+- [Embedded C/C++ Unit Testing Basics](https://interrupt.memfault.com/blog/unit-testing-basics)
+- [Embedded C/C++ Unit Testing with Mocks](https://interrupt.memfault.com/blog/unit-test-mocking)
 - [Unit Testing for C (especially Embedded Software)](http://www.throwtheswitch.org/unity)
 - [GoogleTest - Google Testing and Mocking Framework](https://github.com/google/googletest)
-- [Embedded C/C++ Unit Testing with Mocks](https://interrupt.memfault.com/blog/unit-test-mocking)
 - [Unit Testing Principles, Practices, and Patterns - Vladimir Khorikov](https://www.manning.com/books/unit-testing)
 
 #### Integration Testing
@@ -909,7 +1073,16 @@ _________________
 - [Exclave: Hardware Testing in Mass Production, Made Easier](https://www.bunniestudios.com/blog/?p=5450)
 - [Regression Testing of Embedded Systems](https://www.parasoft.com/blog/regression-testing-of-embedded-systems/)
 
-#### SiL / HiL Testing
+
+#### CI/CD Pipelines
+
+- [Intro to CI/CD Part 1: Getting Started with Docker | Digi-Key Electronics](https://youtu.be/1nxGcfIm-TU)
+- [Intro to CI/CD Part 2: Getting Started with GitHub Actions | Digi-Key Electronics](https://youtu.be/8pyqbYDYkRs)
+- [How to Build a Continuous Integration and Delivery Process for Embedded Software](https://medium.com/jumperiot/how-to-build-a-continuous-integration-and-delivery-flow-for-embedded-software-b0b5bf220a2)
+- [Continuous Integration & Continuous Delivery for Embedded Systems (Whitepaper)](https://www.parasoft.com/white-paper/ci-cd-for-embedded-systems/)
+- [What is DevOps in an Embedded Device Company?](https://www.linkedin.com/pulse/what-devops-embedded-device-company-john-macdonald/)
+
+#### SIL / HIL Testing
 
 - [Embedded CI/CD with HIL Testing (YouTube Playlist)](https://youtube.com/playlist?list=PL4cGeWgaBTe1uwiqIAc6fwPzPpvgPZI2J)
 
@@ -929,10 +1102,10 @@ _________________
 #### AI & ML Basics
 
 - [A beginner's guide to artificial intelligence and machine learning](https://developer.ibm.com/articles/cc-beginner-guide-machine-learning-ai-cognitive/)
-- [Introduction to Machine Learning for Coders!](https://course18.fast.ai/ml)
+- [👶 Introduction to Machine Learning for Coders!](https://course18.fast.ai/ml)
 - [Machine Learning Crash Course with TensorFlow APIs - Google](https://developers.google.com/machine-learning/crash-course/)
 
-#### TensorFlow
+#### TensorFlow Lite
 
 - [Getting Started with TensorFlow and Keras – Maker.io | Digi-Key Electronics](https://www.youtube.com/watch?v=HCG3hFe1KYY)
 - [Intro to TensorFlow Lite Part 1: Wake Word Feature Extraction – Maker.io | Digi-Key Electronics](https://www.youtube.com/watch?v=0fn7pj7Dutc)
@@ -940,8 +1113,8 @@ _________________
 
 #### tinyML
 
-- [Intro to TinyML Part 1: Training a Neural Network for Arduino in TensorFlow | Digi-Key Electronics](https://www.youtube.com/watch?v=BzzqYNYOcWc)
-- [Intro to TinyML Part 2: Deploying a TensorFlow Lite Model to Arduino | Digi-Key Electronics](https://www.youtube.com/watch?v=dU01M61RW8s)
+- [👶 Intro to TinyML Part 1: Training a Neural Network for Arduino in TensorFlow | Digi-Key Electronics](https://www.youtube.com/watch?v=BzzqYNYOcWc)
+- [👶 Intro to TinyML Part 2: Deploying a TensorFlow Lite Model to Arduino | Digi-Key Electronics](https://www.youtube.com/watch?v=dU01M61RW8s)
 - [Coursera - Introduction to Embedded Machine Learning](https://www.coursera.org/learn/introduction-to-embedded-machine-learning)
 - [TinyML: Getting Started with TensorFlow Lite for Microcontrollers | Digi-Key Electronics](https://youtu.be/gDFWCxrJruQ)
 - [TinyML: Getting Started with STM32 X-CUBE-AI | Digi-Key Electronics](https://youtu.be/crJcDqIUbP4)
@@ -954,6 +1127,14 @@ _________________
 
 ### Embedded Security
 
+- [Embedded Systems Security and TrustZone](https://embeddedsecurity.io/)
+
+#### Hardware Hacking
+
+- [💎 Practical Hardware Pentesting -  Jean-Georges Valle](https://a.co/d/dq4SeNH)
+- [Hardware Hacking Tutorial (YouTube Playlist)](https://www.youtube.com/playlist?list=PLoFdAHrZtKkhcd9k8ZcR4th8Q8PNOx7iU)
+- [💎 The Hardware Hacking Handbook: Breaking Embedded Security with Hardware Attacks - Jasper van Woudenberg, Colin O'Flynn](https://a.co/d/gUIytFX)
+
 #### Cryptography
 
 - [Microchip University - Cryptography Primer](https://mu.microchip.com/cryptography-primer)
@@ -963,7 +1144,7 @@ _________________
 - [Public and Private Keys - Signatures & Key Exchanges - Cryptography - Practical TLS](https://youtu.be/_zyKvPvh808)
 - [Understanding AES Encryption Mechanics: BMPS](https://youtu.be/OnhtzFJW_4I)
 - [💎 Understanding Cryptography: A Textbook for Students and Practitioners -  Christof Paar, Jan Pelzl](https://link.springer.com/book/10.1007/978-3-642-04101-3)
-- [Cryptography and Network Security: Principles and Practice - William Stallings](https://www.pearson.com/en-us/subject-catalog/p/cryptography-and-network-security-principles-and-practice/P200000003477/9780135764213)
+- [💎 Handbook of Applied Cryptography -  Alfred J. Menezes, Paul C. van Oorschot, Scott A. Vanstone](https://cacr.uwaterloo.ca/hac/)
 - [Serious Cryptography: A Practical Introduction to Modern Encryption - Jean-Philippe Aumasson](https://nostarch.com/seriouscrypto)
 - [MOOC - Security Part2: Basics of cryptography (YouTube Playlist)](https://youtube.com/playlist?list=PLnMKNibPkDnFSFh57UFTZLpy-7lZiwTHh)
 - [MOOC - Security Part3 : STM32 security features (YouTube Playlist)](https://youtube.com/playlist?list=PLnMKNibPkDnFzux3PHKUEi14ftDn9Cbm7)  
@@ -973,6 +1154,8 @@ _________________
 
 #### Secure Boot & Secure Firmware Update
 
+- [Device Firmware Update Cookbook](https://interrupt.memfault.com/blog/device-firmware-update-cookbook)
+- [Saving bandwidth with delta firmware updates](https://interrupt.memfault.com/blog/ota-delta-updates)
 - [AVR231: AES Bootloader](https://www.microchip.com/en-us/application-notes/an2462)
 - [Blinky To Bootloader: Bare Metal Programming Series (YouTube Playlist)](https://www.youtube.com/playlist?list=PLP29wDx6QmW7HaCrRydOnxcy8QmW0SNdQ)
 - [MOOC - Security Part4 : STM32 security in practice (YouTube Playlist)](https://youtube.com/playlist?list=PLnMKNibPkDnF0wt-ZI74SflnsBV4yKzkO)
@@ -981,6 +1164,7 @@ _________________
 - [TPM (Trusted Platform Module) - Computerphile](https://www.youtube.com/watch?v=RW2zHvVO09g)
 - [Securing Embedded Linux Systems with TPM 2.0 - Philip Tricca, Intel](https://www.youtube.com/watch?v=0qu9R7Tlw9o)
 - [TPM: Basic applications to embedded devices](https://witekio.com/blog/tpm-basic-applications-to-embedded-devices/)
+- [OTA for Embedded Linux Devices: A practical introduction](https://interrupt.memfault.com/blog/ota-for-embedded-linux-devices)
 - [Introduction to Embedded Linux Security - part 1](https://sergioprado.blog/introduction-embedded-linux-security-part-1/)
 - [Introduction to Embedded Linux Security - part 2](https://sergioprado.blog/introduction-embedded-linux-security-part-2/)
 
@@ -1003,6 +1187,6 @@ Special thanks to my friends in the community of Iranian Embedded Engineers in T
 
 ## Contribution
 
-If you think that this roadmap can be improved in anyway or you know some good learning resources that can be added here, please start an issue or a pull request. I’ll be maintaining and updating this repository frequently.
+If you think that this roadmap can be improved in anyway or you know about some good learning resources that can be added here, please start an issue or a pull request. I’ll be maintaining and updating this repository frequently.
 
 The source file is created using [Microsoft Visio](https://office.com/visio) in `.vsdx` format and included in this repository for your contributions. If you do not have Microsoft Visio or you want to use free software, you can use [draw.io](https://draw.io) which can import and export `.vsdx` files.