<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/VDhmVrbSpqA" class="youtube-player" width="740" height="416.418" frameborder="0" allowfullscreen></iframe></span>
    </div>
    <div class="blog-content">
        Real-time digital processing (DSP) of audio data using an STM32 microcontroller on custom audio-processing hardware. Details of hardware design, software set-up, and various digital audio effects. First video in series, covering the system overview, set-up, and simple low- and high-pass filters (IIR, based on analogue RC prototypes).
    </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">00:25</span><span class="chapters-text">Content</span></li>
            <li class="chapters-list-item"><span class="chapters-time">01:48</span><span class="chapters-text">Series Overview</span></li>
            <li class="chapters-list-item"><span class="chapters-time">02:35</span><span class="chapters-text">Mixed-Signal Hardware Design Course with KiCad</span></li>
            <li class="chapters-list-item"><span class="chapters-time">02:57</span><span class="chapters-text">Hardware Overview</span></li>
            <li class="chapters-list-item"><span class="chapters-time">05:25</span><span class="chapters-text">Software Overview</span></li>
            <li class="chapters-list-item"><span class="chapters-time">08:33</span><span class="chapters-text">Double Buffering</span></li>
            <li class="chapters-list-item"><span class="chapters-time">09:34</span><span class="chapters-text">STM32CubeIDE and Basic Firmware</span></li>
            <li class="chapters-list-item"><span class="chapters-time">14:20</span><span class="chapters-text">Low-Pass Filter Theory</span></li>
            <li class="chapters-list-item"><span class="chapters-time">18:48</span><span class="chapters-text">Low-Pass Filter Code</span></li>
            <li class="chapters-list-item"><span class="chapters-time">22:44</span><span class="chapters-text">Test Set-Up (Digilent ADP3450)</span></li>
            <li class="chapters-list-item"><span class="chapters-time">23:44</span><span class="chapters-text">Testing the Filter (WaveForms, Frequency Response, Time Domain)</span></li>
            <li class="chapters-list-item"><span class="chapters-time">27:17</span><span class="chapters-text">High-Pass Filter Theory and Code</span></li>
            <li class="chapters-list-item"><span class="chapters-time">28:22</span><span class="chapters-text">Testing the Filters</span></li>
            <li class="chapters-list-item"><span class="chapters-time">30:35</span><span class="chapters-text">Live Demo - Electric Guitar</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.youtube.com/playlist?list=PLXSyc11qLa1ZCn0JCnaaXOWN6Z46rK9jd">DSP Playlist</a></li>
            <li class="links-list-item"><a href="https://www.youtube.com/playlist?list=PLXSyc11qLa1a4Tqbz228dPZfMrs-KRpzA">STM32 Firmware Playlist</a></li>
            <li class="links-list-item"><a href="https://digilent.com/shop/analog-discovery-pro-3000-series-portable-high-resolution-mixed-signal-oscilloscopes/">Digilent ADP3450</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>

Digital Audio Processing with STM32 #1 - Introduction and Filters - Phil's Lab #46

<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/lII0ldT5TSk" class="youtube-player" width="740" height="416.418" frameborder="0" allowfullscreen></iframe></span>
    </div>
    <div class="blog-content">
        Learn how to Design and 3D Print a box for ANY board. I used Fusion 360 CAD software and Creality ENDER 3 V2 3D printer to design and build an enclosure for a Raspberry Pi ( RPi ) as an example. It’s super simple … 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">Intro</span></li>
            <li class="chapters-list-item"><span class="chapters-time">00:54</span><span class="chapters-text">Raspberry Pi Mechanical Drawing</span></li>
            <li class="chapters-list-item"><span class="chapters-time">20:31</span><span class="chapters-text">Creating Walls</span></li>
            <li class="chapters-list-item"><span class="chapters-time">22:01</span><span class="chapters-text">Adding Screws</span></li>
            <li class="chapters-list-item"><span class="chapters-time">24:05</span><span class="chapters-text">Adding Walls</span></li>
            <li class="chapters-list-item"><span class="chapters-time">25:20</span><span class="chapters-text">Making Project Action</span></li>
            <li class="chapters-list-item"><span class="chapters-time">25:37</span><span class="chapters-text">Inspect Section Analysis</span></li>
            <li class="chapters-list-item"><span class="chapters-time">26:19</span><span class="chapters-text">Offset Phase</span></li>
            <li class="chapters-list-item"><span class="chapters-time">27:06</span><span class="chapters-text">Hose</span></li>
            <li class="chapters-list-item"><span class="chapters-time">28:54</span><span class="chapters-text">Select Holes</span></li>
            <li class="chapters-list-item"><span class="chapters-time">29:24</span><span class="chapters-text">Hide Board</span></li>
            <li class="chapters-list-item"><span class="chapters-time">34:33</span><span class="chapters-text">Sketch</span></li>
            <li class="chapters-list-item"><span class="chapters-time">35:08</span><span class="chapters-text">Split Body</span></li>
            <li class="chapters-list-item"><span class="chapters-time">36:34</span><span class="chapters-text">Extrude</span></li>
            <li class="chapters-list-item"><span class="chapters-time">37:19</span><span class="chapters-text">Disable Bodies</span></li>
            <li class="chapters-list-item"><span class="chapters-time">37:52</span><span class="chapters-text">Modify Offset Faces</span></li>
            <li class="chapters-list-item"><span class="chapters-time">38:46</span><span class="chapters-text">Make Small Adjustments</span></li>
            <li class="chapters-list-item"><span class="chapters-time">42:05</span><span class="chapters-text">Make Another Opening</span></li>
            <li class="chapters-list-item"><span class="chapters-time">44:26</span><span class="chapters-text">Make More Adjustments</span></li>
            <li class="chapters-list-item"><span class="chapters-time">46:06</span><span class="chapters-text">Finish The Sketch</span></li>
            <li class="chapters-list-item"><span class="chapters-time">46:42</span><span class="chapters-text">Add Text</span></li>
            <li class="chapters-list-item"><span class="chapters-time">47:39</span><span class="chapters-text">Edit Sketch</span></li>
            <li class="chapters-list-item"><span class="chapters-time">50:49</span><span class="chapters-text">Modify Corners</span></li>
            <li class="chapters-list-item"><span class="chapters-time">53:38</span><span class="chapters-text">Create Rectangular Pattern</span></li>
            <li class="chapters-list-item"><span class="chapters-time">54:40</span><span class="chapters-text">Group Bodies</span></li>
            <li class="chapters-list-item"><span class="chapters-time">55:42</span><span class="chapters-text">Remove Drips</span></li>
            <li class="chapters-list-item"><span class="chapters-time">57:51</span><span class="chapters-text">Export STL</span></li>
        </ul>
    </div> 
</div>


How To Build Your Own Box for a PCB Board (Using Free Fusion 360 Software) – Step By Step Tutorial

<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/OHBunp9SQ7E" class="youtube-player" width="740" height="416.418" frameborder="0" allowfullscreen></iframe></span>
    </div>
    <div class="blog-content">
        What pad shape do you think is the right one for footprints – Oblong, Rectangular or Rounded corners? I asked Tom Hausherr
    </div>
    <div class="blog-content-links">
        <div>
            Links:
        </div>
        <ul class="links-list">
            <li class="links-list-item"><a href="https://youtu.be/cMxXea16Hxc">Watch the full interview with Tom</a></li>
            <li class="links-list-item"><a href="https://www.linkedin.com/in/tom-hausherr-cid-cit-46130a2/">Tom Hausherr LinkedIn</a></li>
            <li class="links-list-item"><a href="https://www.pcblibraries.com/">Tom's company website: PCB Libraries</a></li>
        </ul>
    </div>   
</div>


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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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