<div class="entry-content">
    <div class="jetpack-video-wrapper"><span class="embed-youtube" style="text-align:center; display: block;"><iframe src="https://www.youtube.com/embed/rMoTqSC9wrY" class="youtube-player" width="740" height="416.418" frameborder="0" allowfullscreen></iframe></span>
    </div>
    <div class="blog-content">
In this tutorial you will design and build your own keyboard. You will also learn all the essentials to design and build any electronics. Enjoy!
    </div>
    
    <div class="blog-content-links">
        <div>
            Links:
        </div>
        <ul class="links-list">
            <li class="links-list-item"><a href="https://github.com/FEDEVEL/custom-keyboard">Github (HW + 3D + SW)</a></li>
            <li class="links-list-item"><a href="https://fedevel.com/courses">FEDEVEL Online courses</a></li>
        </ul>
    </div>  
</div>

Tutorial - Custom DIY Keyboard Design and Build | Part 2: Keyboard Schematic

<div class="entry-content">
    <div class="jetpack-video-wrapper"><span class="embed-youtube" style="text-align:center; display: block;"><iframe src="https://www.youtube.com/embed/N4cLFE0FF2U" class="youtube-player" width="740" height="416.418" frameborder="0" allowfullscreen></iframe></span>
    </div>
    <div class="blog-content">
        In this tutorial you will design and build your own keyboard. You will also learn all the essentials to design and build any electronics. Enjoy!
    </div>

    <div class="blog-content-chapters">
        <div>
            Chapters:
        </div>
        <ul class="chapters-list">
            <li class="chapters-list-item"><span class="chapters-time">00:00</span><span class="chapters-text">What is this tutorial about</span></li>
            <li class="chapters-list-item"><span class="chapters-time">03:34</span><span class="chapters-text">Starting a new project</span></li>
            <li class="chapters-list-item"><span class="chapters-time">08:42</span><span class="chapters-text">Adding RP2040</span></li>
            <li class="chapters-list-item"><span class="chapters-time">14:43</span><span class="chapters-text">Adding 100nF</span></li>
            <li class="chapters-list-item"><span class="chapters-time">20:12</span><span class="chapters-text">Adding 2.2uF</span></li>
            <li class="chapters-list-item"><span class="chapters-time">23:14</span><span class="chapters-text">Adding 200R</span></li>
            <li class="chapters-list-item"><span class="chapters-time">25:43</span><span class="chapters-text">Adding 27R</span></li>
            <li class="chapters-list-item"><span class="chapters-time">27:40</span><span class="chapters-text">Adding USB-C connector</span></li>
            <li class="chapters-list-item"><span class="chapters-time">31:25</span><span class="chapters-text">Adding ESD protection</span></li>
            <li class="chapters-list-item"><span class="chapters-time">34:03</span><span class="chapters-text">Adding 1uF</span></li>
            <li class="chapters-list-item"><span class="chapters-time">36:10</span><span class="chapters-text">Connecting USB CC pins</span></li>
            <li class="chapters-list-item"><span class="chapters-time">36:46</span><span class="chapters-text">Adding 5.1k</span></li>
            <li class="chapters-list-item"><span class="chapters-time">38:21</span><span class="chapters-text">Voltage regulator 5V to 3V3</span></li>
            <li class="chapters-list-item"><span class="chapters-time">42:27</span><span class="chapters-text">Adding 47uF</span></li>
            <li class="chapters-list-item"><span class="chapters-time">45:49</span><span class="chapters-text">Crystal ABM8-272-T3</span></li>
            <li class="chapters-list-item"><span class="chapters-time">47:22</span><span class="chapters-text">Adding 1k</span></li>
            <li class="chapters-list-item"><span class="chapters-time">48:32</span><span class="chapters-text">Adding 15pF</span></li>
            <li class="chapters-list-item"><span class="chapters-time">49:48</span><span class="chapters-text">Adding 1M</span></li>
            <li class="chapters-list-item"><span class="chapters-time">52:52</span><span class="chapters-text">Flash W25Q128JVS</span></li>
            <li class="chapters-list-item"><span class="chapters-time">58:20</span><span class="chapters-text">Boot Select Button</span></li>
            <li class="chapters-list-item"><span class="chapters-time">1:01:09</span><span class="chapters-text">Adding 100k</span></li>
            <li class="chapters-list-item"><span class="chapters-time">1:03:10</span><span class="chapters-text">Reset Button</span></li>
            <li class="chapters-list-item"><span class="chapters-time">1:04:28</span><span class="chapters-text">Adding 10k</span></li>
            <li class="chapters-list-item"><span class="chapters-time">1:08:23</span><span class="chapters-text">Adding 1x3 Header</span></li>
            <li class="chapters-list-item"><span class="chapters-time">1:11:50</span><span class="chapters-text">User LED</span></li>
            <li class="chapters-list-item"><span class="chapters-time">1:15:06</span><span class="chapters-text">Power LED</span></li>
            <li class="chapters-list-item"><span class="chapters-time">1:16:38</span><span class="chapters-text">Thank you for watching</span></li>
    </div>
    
    <div class="blog-content-links">
        <div>
            Links:
        </div>
        <ul class="links-list">
            <li class="links-list-item"><a href="https://oshwlab.com/robertferanec/custom-keyboard">Finished project (EasyEDA)</a></li>
            <li class="links-list-item"><a href="https://github.com/FEDEVEL/custom-keyboard">Github (HW + 3D + SW)</a></li>
            <li class="links-list-item"><a href="https://www.thingiverse.com/thing:6784228">Thingiverse (3D)</a></li>
            <li class="links-list-item"><a href="https://www.youtube.com/playlist?list=PLXvLToQzgzdftro2qK5In8p6ExsDFdpzw">Link to the complete playlist</a></li>
            <li class="links-list-item"><a href="https://fedevel.com/courses">FEDEVEL Online courses</a></li>
        </ul>
    </div>  
</div>

Tutorial - Custom DIY Keyboard Design and Build: Schematic + PCB + Case | Part 1 - RP2040

<div class="entry-content">
    <div class="jetpack-video-wrapper"><span class="embed-youtube" style="text-align:center; display: block;"><iframe src="https://www.youtube.com/embed/Lqc1jmbSxnE" class="youtube-player" width="740" height="416.418" frameborder="0" allowfullscreen></iframe></span>
    </div>
    <div class="blog-content">
Why is the thickness of PCB layers important? Explained.
    </div>

    <div class="blog-content-chapters">
        <div>
            Chapters:
        </div>
        <ul class="chapters-list">
            <li class="chapters-list-item"><span class="chapters-time">00:00</span><span class="chapters-text">What is this video about</span></li>
            <li class="chapters-list-item"><span class="chapters-time">00:36</span><span class="chapters-text">What is PCB stackup</span></li>
            <li class="chapters-list-item"><span class="chapters-time">01:08</span><span class="chapters-text">Is stackup important?</span></li>
            <li class="chapters-list-item"><span class="chapters-time">01:37</span><span class="chapters-text">Layer thickness vs. crosstalk</span></li>
            <li class="chapters-list-item"><span class="chapters-time">03:37</span><span class="chapters-text">Layer thickness vs. track width</span></li>
            <li class="chapters-list-item"><span class="chapters-time">05:11</span><span class="chapters-text">Layer count and order</span></li>
            <li class="chapters-list-item"><span class="chapters-time">07:44</span><span class="chapters-text">Conclusion</span></li>
    </div>
    
    <div class="blog-content-links">
        <div>
            Links:
        </div>
        <ul class="links-list">
            <li class="links-list-item"><a href="https://fedevel.com/courses">FEDEVEL Online courses</a></li>
        </ul>
    </div>  
</div>

How to choose PCB?

<div class="entry-content">
    <div class="jetpack-video-wrapper"><span class="embed-youtube" style="text-align:center; display: block;"><iframe src="https://www.youtube.com/embed/KZ4ujk8WUtw" class="youtube-player" width="740" height="416.418" frameborder="0" allowfullscreen></iframe></span>
    </div>
    <div class="blog-content">
        Passive RC high-pass filter basics, theory, real-world tests and demos, practical considerations, and examples both in the time- and frequency-domain.
    </div>
    <div class="blog-content-chapters">
        <div>
            Chapters:
        </div>
        <ul class="chapters-list">
            <li class="chapters-list-item"><span class="chapters-time">00:00</span><span class="chapters-text">Introduction</span></li>
            <li class="chapters-list-item"><span class="chapters-time">02:06</span><span class="chapters-text">High-Pass Examples</span></li>
            <li class="chapters-list-item"><span class="chapters-time">03:24</span><span class="chapters-text">Basics</span></li>
            <li class="chapters-list-item"><span class="chapters-time">05:31</span><span class="chapters-text">Time-Domain Analysis</span></li>
            <li class="chapters-list-item"><span class="chapters-time">08:45</span><span class="chapters-text">Test Set-Up</span></li>
            <li class="chapters-list-item"><span class="chapters-time">09:28</span><span class="chapters-text">Time-Domain Demo</span></li>
            <li class="chapters-list-item"><span class="chapters-time">13:19</span><span class="chapters-text">Frequency-Domain Analysis</span></li>
            <li class="chapters-list-item"><span class="chapters-time">18:22</span><span class="chapters-text">Frequency-Domain Demo</span></li>
            <li class="chapters-list-item"><span class="chapters-time">20:00</span><span class="chapters-text">Differentiator</span></li>
            <li class="chapters-list-item"><span class="chapters-time">22:23</span><span class="chapters-text">Source & Load Effects</span></li>
            <li class="chapters-list-item"><span class="chapters-time">24:31</span><span class="chapters-text">Cascading Stages</span></li>
            <li class="chapters-list-item"><span class="chapters-time">25:29</span><span class="chapters-text">Component Non-Idealities</span></li>
            <li class="chapters-list-item"><span class="chapters-time">27:26</span><span class="chapters-text">Further Practical Considerations</span></li>
            <li class="chapters-list-item"><span class="chapters-time">29:24</span><span class="chapters-text">Practical Examples</span></li>
            <li class="chapters-list-item"><span class="chapters-time">31:47</span><span class="chapters-text">Outro</span></li>
    </div>
    <div class="blog-content-links">
        <div>
            Links:
        </div>
        <ul class="links-list">
            <li class="links-list-item"><a href="https://www.youtube.com/watch?v=xAuBqK4QsCc">RC Low-Pass Filter Deep-Dive</a></li>
            <li class="links-list-item"><a href="https://www.youtube.com/watch?v=kUruN6WBgSw">Capacitor Hardware Design Basics (MLCC)</a></li>           
            <li class="links-list-item"><a href="https://fedevel.com/courses/advanced-digital-hardware-design">Advanced Digital Hardware Design course</a></li>
            <li class="links-list-item"><a href="https://fedevel.com/courses/mixed-signal-hardware-design-with-kicad">Mixed-signal Hardware Design course</a></li>
            <li class="links-list-item"><a href="https://fedevel.com/courses">FEDEVEL courses</a></li>
        </ul>
    </div>  
</div>

RC High-Pass Filters Explained - Phil's Lab #122

<div class="entry-content">
    <div class="jetpack-video-wrapper"><span class="embed-youtube" style="text-align:center; display: block;"><iframe src="https://www.youtube.com/embed/1EXXqWweTkI" class="youtube-player" width="740" height="416.418" frameborder="0" allowfullscreen></iframe></span>
    </div>
    <div class="blog-content">
        Basics of navigating datasheets for hardware and firmware design, exploring their structure, which sections are important, and what to pay attention to!
    </div>
    <div class="blog-content-chapters">
        <div>
            Chapters:
        </div>
        <ul class="chapters-list">
            <li class="chapters-list-item"><span class="chapters-time">00:00</span><span class="chapters-text">Intro</span></li>
            <li class="chapters-list-item"><span class="chapters-time">02:20</span><span class="chapters-text">Component Pre-Selection</span></li>
            <li class="chapters-list-item"><span class="chapters-time">03:40</span><span class="chapters-text">Overview Page</span></li>
            <li class="chapters-list-item"><span class="chapters-time">06:06</span><span class="chapters-text">Ratings</span></li>
            <li class="chapters-list-item"><span class="chapters-time">07:23</span><span class="chapters-text">Characteristics</span></li>
            <li class="chapters-list-item"><span class="chapters-time">08:05</span><span class="chapters-text">Pin-Out</span></li>
            <li class="chapters-list-item"><span class="chapters-time">09:43</span><span class="chapters-text">Typical Application</span></li>
            <li class="chapters-list-item"><span class="chapters-time">11:56</span><span class="chapters-text">Application Information</span></li>
            <li class="chapters-list-item"><span class="chapters-time">13:46</span><span class="chapters-text">App Notes</span></li>
            <li class="chapters-list-item"><span class="chapters-time">14:25</span><span class="chapters-text">Mechanical & Footprint</span></li>
            <li class="chapters-list-item"><span class="chapters-time">15:50</span><span class="chapters-text">PCB Layout</span></li>
            <li class="chapters-list-item"><span class="chapters-time">16:34</span><span class="chapters-text">Reference Designs</span></li>
            <li class="chapters-list-item"><span class="chapters-time">17:10</span><span class="chapters-text">Firmware</span></li>
            <li class="chapters-list-item"><span class="chapters-time">18:58</span><span class="chapters-text">Additional Sections</span></li>
            <li class="chapters-list-item"><span class="chapters-time">20:41</span><span class="chapters-text">Outro</span></li>
    </div>
    <div class="blog-content-links">
        <div>
            Links:
        </div>
        <ul class="links-list">
            <li class="links-list-item"><a href="https://www.youtube.com/watch?v=DVErHmX-qyw">Symbol and Footprint Creation</a></li>
            <li class="links-list-item"><a href="https://www.youtube.com/watch?v=_JQAve05o_0">How To Write A Driver (STM32, I2C, Datasheet)</a></li>           
            <li class="links-list-item"><a href="https://fedevel.com/courses/advanced-digital-hardware-design">Advanced Digital Hardware Design course</a></li>
            <li class="links-list-item"><a href="https://fedevel.com/courses/mixed-signal-hardware-design-with-kicad">Mixed-signal Hardware Design course</a></li>
            <li class="links-list-item"><a href="https://fedevel.com/courses">FEDEVEL courses</a></li>
        </ul>
    </div>  
</div>

How To Read A Datasheet - Phil's Lab #123

<div class="entry-content">
    <div class="jetpack-video-wrapper"><span class="embed-youtube" style="text-align:center; display: block;"><iframe src="https://www.youtube.com/embed/x1hXgdFssuo" class="youtube-player" width="740" height="416.418" frameborder="0" allowfullscreen></iframe></span>
    </div>
    <div class="blog-content">
Very unusual machines that I have seen when visiting JLCPCB factory.
    </div>
    
    <div class="blog-content-links">
        <div>
            Links:
        </div>
        <ul class="links-list">
            <li class="links-list-item"><a href="https://jlcpcb.com/">Thank you very much to JLCPCB</a></li>
            <li class="links-list-item"><a href="https://fedevel.com/courses">FEDEVEL Online courses</a></li>
        </ul>
    </div>  
</div>

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Most People Have Never Seen These Machines | Visiting #JLCPCB

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Tutorial - Custom DIY Keyboard Design and Build | Part 2: Keyboard Schematic

Tutorial - Custom DIY Keyboard Design and Build: Schematic + PCB + Case | Part 1 - RP2040

How to choose PCB?

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