<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/qMUzLU636s8" class="youtube-player" width="740" height="416.418" frameborder="0" allowfullscreen></iframe></span>
    </div>
    <div class="blog-content">
        Guide on how to connect, check, program, and debug your custom STM32-based hardware via SWD and the ST-Link debugger utilizing STM32CubeIDE.
    </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">00:28</span><span class="chapters-text">ST-Link</span></li>
            <li class="chapters-list-item"><span class="chapters-time">01:08</span><span class="chapters-text">Hardware Connections</span></li>
            <li class="chapters-list-item"><span class="chapters-time">02:11</span><span class="chapters-text">ST-Link Utility (Checking that we can connect to STM32 MCU)</span></li>
            <li class="chapters-list-item"><span class="chapters-time">03:37</span><span class="chapters-text">STM32CubeIDE (Programming and debugging software package)</span></li>
            <li class="chapters-list-item"><span class="chapters-time">05:22</span><span class="chapters-text">Enabling SWD</span></li>
            <li class="chapters-list-item"><span class="chapters-time">06:04</span><span class="chapters-text">Setting up an external high-speed crystal (HSE)</span></li>
            <li class="chapters-list-item"><span class="chapters-time">07:10</span><span class="chapters-text">Additional peripheral selection</span></li>
            <li class="chapters-list-item"><span class="chapters-time">08:50</span><span class="chapters-text">LED blinking test code</span></li>
            <li class="chapters-list-item"><span class="chapters-time">09:44</span><span class="chapters-text">Building code and checking for compiler errors</span></li>
            <li class="chapters-list-item"><span class="chapters-time">10:02</span><span class="chapters-text">Debug configuration, debugging, and flashing via ST-Link</span></li>
            <li class="chapters-list-item"><span class="chapters-time">11:26</span><span class="chapters-text">Running, pausing, and setting breakpoints</span></li>
            <li class="chapters-list-item"><span class="chapters-time">12:20</span><span class="chapters-text">Hardware running code</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.st.com/en/development-tools/st-link-v2.html">ST-Link/V2 Debugger</a></li>
            <li class="links-list-item"><a href="https://www.olimex.com/Products/ARM/JTAG/ARM-JTAG-20-10/">20-pin to 10-pin 1.27mm Adapter</a></li>
            <li class="links-list-item"><a href="https://www.st.com/en/development-tools/stm32cubeide.html">STM32CubeIDE</a></li>
            <li class="links-list-item"><a href="https://www.st.com/en/development-tools/stsw-link004.html">ST-Link Utility</a></li>

            <li class="links-list-item"><a href="https://fedevel.com/courses">FEDEVEL courses</a></li>
        </ul>
    </div>  
</div>

STM32 + SWD + ST-Link + CubeIDE | Debugging on Custom Hardware Tutorial - Phil's Lab #4

<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/14_jh3nLSsU" class="youtube-player" width="740" height="416.418" frameborder="0" allowfullscreen></iframe></span>
    </div>
    <div class="blog-content">
        Overview of STM32, RF, and USB hardware design, schematic creation, and PCB layout and routing in KiCad using a real-world example project.<br><br>

Various tips on controlled impedance routing, differential pairs, USB, and RF layout.

Correction in schematic: NRF24 IREF pin needs to be pulled low to GND via a 10k resistor (not to 3V3 as shown in the video!). Fix has been pushed to GitHub.
    </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">System overview, component selection</span></li>
            <li class="chapters-list-item"><span class="chapters-time">03:15</span><span class="chapters-text">STM32 pin-out and peripheral selection</span></li>
            <li class="chapters-list-item"><span class="chapters-time">04:10</span><span class="chapters-text">Schematic sectioning</span></li>
            <li class="chapters-list-item"><span class="chapters-time">04:48</span><span class="chapters-text">Power supply (power via USB, filtering, USB decoupling caps)</span></li>
            <li class="chapters-list-item"><span class="chapters-time">06:45</span><span class="chapters-text">STM32 microcontroller (USB connections and terminations, SPI, LEDs, decoupling)</span></li>
            <li class="chapters-list-item"><span class="chapters-time">09:55</span><span class="chapters-text">SWD (Serial Wire Debug) connector</span></li>
            <li class="chapters-list-item"><span class="chapters-time">10:45</span><span class="chapters-text">USB connector and ESD protection</span></li>
            <li class="chapters-list-item"><span class="chapters-time">13:11</span><span class="chapters-text">NRF24 RF transceiver</span></li>
            <li class="chapters-list-item"><span class="chapters-time">14:40</span><span class="chapters-text">Extern crystal (load capacitor calculation)</span></li>
            <li class="chapters-list-item"><span class="chapters-time">15:57</span><span class="chapters-text">RF antenna matching circuit</span></li>
            <li class="chapters-list-item"><span class="chapters-time">17:31</span><span class="chapters-text">Component selection and sizing</span></li>
            <li class="chapters-list-item"><span class="chapters-time">19:24</span><span class="chapters-text">Rough layout and sectioning (USB, power, microcontroller, and RF)</span></li>
            <li class="chapters-list-item"><span class="chapters-time">20:37</span><span class="chapters-text">Component placement order (most 'critical' components first)</span></li>
            <li class="chapters-list-item"><span class="chapters-time">21:30</span><span class="chapters-text">USB ESD protection placement</span></li>
            <li class="chapters-list-item"><span class="chapters-time">21:42</span><span class="chapters-text">RF layout</span></li>
            <li class="chapters-list-item"><span class="chapters-time">22:16</span><span class="chapters-text">Determining board outline (size and rounded edges)</span></li>
            <li class="chapters-list-item"><span class="chapters-time">22:42</span><span class="chapters-text">Fine-tuning the layout</span></li>
            <li class="chapters-list-item"><span class="chapters-time">23:24</span><span class="chapters-text">Layer stack-up (4 layer board)</span></li>
            <li class="chapters-list-item"><span class="chapters-time">24:16</span><span class="chapters-text">Sectioning (USB, power, microcontroller, and RF), track widths, and clearance</span></li>
            <li class="chapters-list-item"><span class="chapters-time">25:17</span><span class="chapters-text">Power and ground via connections to copper pours</span></li>
            <li class="chapters-list-item"><span class="chapters-time">26:00</span><span class="chapters-text">Ground and power planes</span></li>
            <li class="chapters-list-item"><span class="chapters-time">26:43</span><span class="chapters-text">Power supply routing</span></li>
            <li class="chapters-list-item"><span class="chapters-time">27:26</span><span class="chapters-text">STM32 routing</span></li>
            <li class="chapters-list-item"><span class="chapters-time">28:15</span><span class="chapters-text">Crystal routing</span></li>
            <li class="chapters-list-item"><span class="chapters-time">29:40</span><span class="chapters-text">RF and USB routing (trace impedance, differential routing, ground pours)</span></li>
            <li class="chapters-list-item"><span class="chapters-time">36:53</span><span class="chapters-text">RF guard ring</span></li>
            <li class="chapters-list-item"><span class="chapters-time">38:45</span><span class="chapters-text">Clearance between traces</span></li>
            <li class="chapters-list-item"><span class="chapters-time">39:25</span><span class="chapters-text">Via-in-pad</span></li>
            <li class="chapters-list-item"><span class="chapters-time">40:05</span><span class="chapters-text">Labelling and logo</span></li>
            <li class="chapters-list-item"><span class="chapters-time">40:40</span><span class="chapters-text">Marking 'pin 1' locations</span></li>
            <li class="chapters-list-item"><span class="chapters-time">40:53</span><span class="chapters-text">Marking diode polarity</span></li>
            <li class="chapters-list-item"><span class="chapters-time">41:42</span><span class="chapters-text">Checking your work</span></li>
            <li class="chapters-list-item"><span class="chapters-time">42:00</span><span class="chapters-text">Gerber and drill file export</span></li>
            <li class="chapters-list-item"><span class="chapters-time">42:25</span><span class="chapters-text">Footprint positions file (for assembly)</span></li>
            <li class="chapters-list-item"><span class="chapters-time">42:49</span><span class="chapters-text">Bill of materials (BOM)</span></li>
            <li class="chapters-list-item"><span class="chapters-time">43:10</span><span class="chapters-text">Gerber file check (via GerbView)</span></li>
        </ul>
    </div>
    <div class="blog-content-links">
        <div>
            Links:
        </div>
        <ul class="links-list">
            <li class="links-list-item"><a href="https://github.com/pms67/STRF-Kicad">Github - Design files</a></li>

            <li class="links-list-item"><a href="https://fedevel.com/courses">FEDEVEL courses</a></li>
        </ul>
    </div>  
</div>

KiCad STM32 + RF + USB Hardware Design - Phil's Lab #5

<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/HG-5Wr7zSX8" class="youtube-player" width="740" height="416.418" frameborder="0" allowfullscreen></iframe></span>
    </div>
    <div class="blog-content">
        This video explains what you may want to be careful about when you are comparing footprint with a real component.
    </div>
</div>


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

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How to choose PCB?

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