<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/x1m8G8MAeUQ" class="youtube-player" width="740" height="416.418" frameborder="0" allowfullscreen></iframe></span>
    </div>
    <div class="blog-content">
        If you have a PCB antenna on your board, you need to know this. Thank you very much Kaja Sørbotten from Nordic Semiconductor.
    </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">03:53</span><span class="chapters-text">Starting PCB antenna design (example nRF5340)</span></li>
            <li class="chapters-list-item"><span class="chapters-time">09:18</span><span class="chapters-text">Where to get information about antenna dimensions</span></li>
            <li class="chapters-list-item"><span class="chapters-time">11:59</span><span class="chapters-text">Antenna components and connection</span></li>
            <li class="chapters-list-item"><span class="chapters-time">18:24</span><span class="chapters-text">Antenna and component placement</span></li>
            <li class="chapters-list-item"><span class="chapters-time">22:29</span><span class="chapters-text">What is important in antenna PCB layout</span></li>
            <li class="chapters-list-item"><span class="chapters-time">27:18</span><span class="chapters-text">AppCAD calculator</span></li>
            <li class="chapters-list-item"><span class="chapters-time">31:41</span><span class="chapters-text">Common mistakes in PCB antenna designs</span></li>
            <li class="chapters-list-item"><span class="chapters-time">39:27</span><span class="chapters-text">Measuring antenna output from the chip</span></li>
            <li class="chapters-list-item"><span class="chapters-time">43:20</span><span class="chapters-text">Carrier frequency adjustment</span></li>
            <li class="chapters-list-item"><span class="chapters-time">50:58</span><span class="chapters-text">Measuring output power and harmonics</span></li>
            <li class="chapters-list-item"><span class="chapters-time">59:10</span><span class="chapters-text">Antenna output with matching components populated</span></li>
            <li class="chapters-list-item"><span class="chapters-time">1:02:47</span><span class="chapters-text">Matching the antenna input</span></li>
            <li class="chapters-list-item"><span class="chapters-time">1:09:44</span><span class="chapters-text">Calibrating cable</span></li>
            <li class="chapters-list-item"><span class="chapters-time">1:15:06</span><span class="chapters-text">Measuring an antenna</span></li>
            <li class="chapters-list-item"><span class="chapters-time">1:16:55</span><span class="chapters-text">Finding out capacitor value for antenna matching</span></li>
            <li class="chapters-list-item"><span class="chapters-time">1:23:08</span><span class="chapters-text">Adjusting antenna length and measuring it</span></li>
            <li class="chapters-list-item"><span class="chapters-time">1:27:52</span><span class="chapters-text">Done</span></li>
        </ul>
    </div>
    <div class="blog-content-links">
        <div>
            Links:
        </div>
        <ul class="links-list">
            <li class="links-list-item"><a href="https://www.linkedin.com/in/kaja-garbom-s%C3%B8rbotten-026239150/">Kajas LinkedIn</a></li>
            <li class="links-list-item"><a href="https://www.nordicsemi.com/">Nordic Semiconductor:</a></li>
            <li class="links-list-item"><a href="https://fedevel.com/courses">FEDEVEL courses</a></li>
        </ul>
    </div>  
</div>

PCB Antenna - How To Design, Measure And Tune

<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/HF-H4iuyBnc" class="youtube-player" width="740" height="416.418" frameborder="0" allowfullscreen></iframe></span>
    </div>
    <div class="blog-content">
        Basics of termination, reflections, and parallel termination for hardware and PCB design. Including practical considerations, simulations, and demos.
    </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">02:12</span><span class="chapters-text">Termination Basics</span></li>
            <li class="chapters-list-item"><span class="chapters-time">05:42</span><span class="chapters-text">Reflections</span></li>
            <li class="chapters-list-item"><span class="chapters-time">09:17</span><span class="chapters-text">Parallel Termination</span></li>
            <li class="chapters-list-item"><span class="chapters-time">10:43</span><span class="chapters-text">Practical Considerations</span></li>
            <li class="chapters-list-item"><span class="chapters-time">15:14</span><span class="chapters-text">Simulation Demo</span></li>
            <li class="chapters-list-item"><span class="chapters-time">19:12</span><span class="chapters-text">DDR3 Example</span></li>
            <li class="chapters-list-item"><span class="chapters-time">21:51</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=VtzPL8wQ8-E&ab_channel=Phil%E2%80%99sLab">PCB EMI/SI</a></li>
            <li class="links-list-item"><a href="https://www.ti.com/lit/an/snla034b/snla034b.pdf?ts=1694391811411&ref_url=https%253A%252F%252Fwww.google.com%252F">AN-903 A Comparison of Differential Termination Techniques</a></li>
            <li class="links-list-item"><a href="https://www.sitime.com/support/resource-library/application-notes/an10002-termination-recommendations-single-ended">AN10002 Termination Recommendations for Single-ended Oscillator Driving Single or Multiple Loads</a></li>
            <li class="links-list-item"><a href="https://www.analog.com/media/en/training-seminars/tutorials/MT-097.pdf">MT-097 TUTORIAL</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>

Parallel Termination Basics - Phil's Lab #119

<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/3xXubcQC92s" class="youtube-player" width="740" height="416.418" frameborder="0" allowfullscreen></iframe></span>
    </div>
    <div class="blog-content">
Explains how the silicon of a chip is connected to the pins inside of a package. Thank you very much Joren Vaes.
    </div>
    
    <div class="blog-content-links">
        <div>
            Links:
        </div>
        <ul class="links-list">
            <li class="links-list-item"><a href="https://youtu.be/69mdJv6fWXE">Explained How Chips Are Designed</a></li>
            <li class="links-list-item"><a href="https://www.linkedin.com/in/joren-vaes-mmwave/">Joren's LinkedIn</a></li>
        </ul>
    </div>  
</div>

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How is a chip (die) connected to the pins? Do you know? #HighlightsRF

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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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