<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-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/OG2Ci_xr0pM" class="youtube-player" width="740" height="416.418" frameborder="0" allowfullscreen></iframe></span>
    </div>
    <div class="blog-content">
If you would like to watch a full step-by-step tutorial about how to design your own custom keyboard, let me know in comments. Thx for watching.
    </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">Overview</span></li>
            <li class="chapters-list-item"><span class="chapters-time">00:20</span><span class="chapters-text">Keyboard parts</span></li>
            <li class="chapters-list-item"><span class="chapters-time">00:54</span><span class="chapters-text">Keyboard PCB design</span></li>
            <li class="chapters-list-item"><span class="chapters-time">02:35</span><span class="chapters-text">Small version</span></li>
            <li class="chapters-list-item"><span class="chapters-time">03:53</span><span class="chapters-text">Keyboard case</span></li>
            <li class="chapters-list-item"><span class="chapters-time">05:11</span><span class="chapters-text">Switches and encoders</span></li>
            <li class="chapters-list-item"><span class="chapters-time">06:10</span><span class="chapters-text">Keycaps</span></li>
            <li class="chapters-list-item"><span class="chapters-time">06:56</span><span class="chapters-text">Firmware QMK</span></li>
            <li class="chapters-list-item"><span class="chapters-time">07:52</span><span class="chapters-text">VIA app to set shortcuts</span></li>
            <li class="chapters-list-item"><span class="chapters-time">08:28</span><span class="chapters-text">Finished keyboard</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>

I Built This Custom Keyboard from Scratch

<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/m3Ny3j5nH0U" class="youtube-player" width="740" height="416.418" frameborder="0" allowfullscreen></iframe></span>
    </div>
    <div class="blog-content">
Close look at BGA soldering, chip soldering, hand soldering and more
    </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">00:09</span><span class="chapters-text">Soldering BGA</span></li>
            <li class="chapters-list-item"><span class="chapters-time">01:18</span><span class="chapters-text">Soldering TSSOP</span></li>
            <li class="chapters-list-item"><span class="chapters-time">03:05</span><span class="chapters-text">Soldering QFN</span></li>
            <li class="chapters-list-item"><span class="chapters-time">06:02</span><span class="chapters-text">Hand soldering</span></li>
            <li class="chapters-list-item"><span class="chapters-time">08:35</span><span class="chapters-text">Multilayer PCB under a microscope</span></li>
    </div>

    
    <div class="blog-content-links">
        <div>
            Links:
        </div>
        <ul class="links-list">
            <li class="links-list-item"><a href="https://www.keyence.eu/yt-kib-vhx-0924">Microscope Keyence VHX-7000N</a></li>
            <li class="links-list-item"><a href="https://fedevel.com/courses">FEDEVEL Online courses</a></li>
        </ul>
    </div>  
</div>

Have you ever seen soldering THIS close?

<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/qlNVF9HEw1s" class="youtube-player" width="740" height="416.418" frameborder="0" allowfullscreen></iframe></span>
    </div>
    <div class="blog-content">
        This video explains, how to generate 3D PDF of your board in Altium Designer 15.1 and up. For older Altium, check the <a href="http://www.fedevel.com/welldoneblog/2014/07/altium-designer-how-to-export-pcb-to-3d-pdf/">Altium Designer – How to Export PCB to 3D PDF</a> post.
    </div>
    <div class="blog-content-links">
        <div>
            Links:
        </div>
        <ul class="links-list">
            <li class="links-list-item"><a href="http://www.fedevel.com/welldoneblog/wp-content/uploads/2015/07/Open-Rex-3D-PDF.pdf">3D PDF example generated in the video</a></li>
            <li class="links-list-item"><a href="https://get.adobe.com/reader/">Adobe Reader</a></li>
        </ul>
    </div>  
</div>


Altium – How to generate 3D PDF – It’s Easy

<div class="entry-content">
    <div class="blog-content">
        I setup a new forum for Electronic Enthusiastics & Professionals. It already has some interesting posts. I like this one about simulating CPU -> FLASH & SDRAM connection: <a href="http://www.fedevel.com/designhelp/forum/test/pcb-layout/82-sdr-sdram-layout-recommendations">SDR SDRAM layout recommendations</a>.<br><br>

        The post is all about making decision on, how to place & route CPU + FLASH + SDRAM on one shared bus. <b>Have a look at the simulations and notice the signal quality difference for different routing topology</b>.<br><br>

        <i><b>The worst case</b><br>
        Placing series termination resistor close to the CPU (U1, input, blue color), setting up MEMORY as Output (U2, green), routing all parts in one line (I did not actually placed the chips in one line, as there will be some tracks inside the package, so I made a small stub)</i>
    </div>
    <div class="blog-content-img-wrapper">
        <img src="https://assets.fedevel.com/blog/other-images/Simulation-R_near_CPU-Inline_1.png" alt="Simulation - R near CPU - Inline" />
    </div>
    <div class="blog-content-img-wrapper">
        <img src="https://assets.fedevel.com/blog/other-images/Simulation-R_near_CPU-Inline_2.png" alt="Simulation - R near CPU - Inline" />
    </div>
    <div class="blog-content">
        <i><b>The optimum case</b><br>
            Placing series termination resistor close to the SDRAM, setting up MEMORY as Output (green color), routing all the branches same length</i>
    </div>
    <div class="blog-content-img-wrapper">
        <img src="https://assets.fedevel.com/blog/other-images/Simulation-R_near_MEM-Tbranch_1.png" alt="Simulation - R near MEM - Tbranch" />
    </div>
    <div class="blog-content-img-wrapper">
        <img src="https://assets.fedevel.com/blog/other-images/Simulation-R_near_MEM-Tbranch_2.png" alt="Simulation - R near MEM - Tbranch" />
    </div>


    <div class="blog-content-links">
        <div>
            Links:
        </div>
        <ul class="links-list">
            <li class="links-list-item"><a href="http://www.fedevel.com/designhelp/forum/test/pcb-layout/82-sdr-sdram-layout-recommendations">Read more: SDR SDRAM layout recommendations</a></li>
        </ul>
    </div>  
</div>

Forum for Everyone Interested in Schematic & PCB Design

<div class="entry-content">
    <div class="blog-content">
        I found these very interesting pictures in article Minimizing EMI Caused by Radially Propagating Waves Inside
        High Speed Digital Logic PCBs by Franz Gisin, Zorica Pantic-Tanner.<br><br>

        <i>Picture: Microstrip and Stripline power density</i>
    </div>
    <div class="blog-content-img-wrapper">
        <img src="https://assets.fedevel.com/blog/2019/10/45071-microstrip-and-stripline-power-density.jpg" alt="Microstrip and Stripline power density" />
    </div>
    <div class="blog-content-text">
        <i>Picture: PCB Edge coupling effects</i>
    </div>
    <div class="blog-content-img-wrapper">
        <img src="https://assets.fedevel.com/blog/2019/10/9ff83-pcb-edge-coupling-effects.jpg" alt="PCB Edge coupling effects" />
    </div>

    <div class="blog-content-links">
        <div>
            Links:
        </div>
        <ul class="links-list">
            <li class="links-list-item"><a href="http://www.mtt-serbia.org.rs/microwave_review/pdf/Vol7No3-12-ZPantic-Tanner.pdf">Minimizing
                    EMI Caused by Radially Propagating Waves Inside High Speed Digital Logic PCBs</a></li>
        </ul>
    </div>
</div>

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Interesting pictures – PCB Edge Coupling / Microstrip & Stripline Power Density

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How to choose PCB?

I Built This Custom Keyboard from Scratch

Have you ever seen soldering THIS close?

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