<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="blog-content">
        During PCB layout, you have to decide on clearance between traces. Here are 3 key factors you may need to consider:
    </div>
    <div class="blog-content">
        <h2 class="blog-content-heading">Manufacturing capabilities</h2>
        Check with your PCB manufacturer, what is the minimum gap they can actually manufacture. Many PCB manufacturers have it on their website, as an example check this <a href="http://www.sqpinternational.com/capabilities.php">SQP International</a>. Note: <i>Normally I do not use clearance smaller than 0.1mm (4mil)</i>.
    </div>
    <div class="blog-content">
        <h2 class="blog-content-heading">Signal requirements</h2>
        For critical signals, you may want to use a bigger clearance as is the minimum manufacturing gap. One of the main factors to consider is crosstalk (as you know, signals routed close to each other can influence each other). If you are not sure how big the gap should be, you can use a Crosstalk calculator e.g. download <a href="http://www.saturnpcb.com/pcb_toolkit.htm">Saturn PCB Toolkit</a> -> Crosstalk Calculator TAB. For critical signals you may be looking to achieve crosstalk coeficient -30dB or lower ( e.g -35dB, -40dB, …. see the Table in the next paragraph).<br><br>

        <i>Picture: Screenshot from Saturn PCB Toolkit -> Crosstalk Calculator TAB</i>
    </div>
    <div class="blog-content-img-wrapper">
        <img src="https://assets.fedevel.com/blog/2019/10/b796c-saturn-pcb-toolkit-crosstalk-calculator-tab.png" alt="Saturn PCB Toolkit - Crosstalk Calculator TAB" />
    </div>
    <div class="blog-content-text">
        The table below shows some examples of recommended spacing based on H, where H is dielectricum height between signal layer and reference plane (notice the crosstalk coeficient which in these examples is between -22dB to -35dB):<br><br>

        <i>Table: Examples of recommended spacing between tracks</i>
    </div>
    <div class="blog-content-img-wrapper">
        <img src="https://assets.fedevel.com/blog/2019/10/05482-examples-of-gap-between-tracks-in-pcb-design.png" alt="Examples of gap between tracks in PCB design" />
    </div>
    <div class="blog-content-text">
        Have a look also at <a href="https://fedevel.com/blog/high-speed-pcb-design-rules-lesson-4-of-advanced-pcb-layout/">High Speed PCB Design Rules (Lesson 4 of Advanced PCB Layout)</a> post – especially the <i>Rule 6: Be aware of tracks running in parallel.</i> That may help you.
    </div>
    <div class="blog-content">
        <h2 class="blog-content-heading">Electrical requirements</h2>
        If you are designing a board for higher voltage (e.g. 240V), the minimum gap can be calculated and has to follow some rules or meet some requirements. As a good starting point, you can use <a href="http://www.saturnpcb.com/pcb_toolkit.htm">Saturn PCB Toolkit</a> -> Conductor Spacing TAB. However, it may be more complicated. You may need to consider other factors, for example the environment where the board will be located and also read and study some regulations.<br><br>

        <i>Picture: Screenshot from Saturn PCB Toolkit -> Conductor Spacing TAB</i>
    </div>
    <div class="blog-content-img-wrapper">
        <img src="https://assets.fedevel.com/blog/2019/10/3db16-satrun-pcb-toolkit-conductor-spacing-tab.png" alt="Saturn PCB Toolkit - Conductor Spacing TAB" />
    </div>

    <div class="blog-content-links">
        <div>
            Links:
        </div>
        <ul class="links-list">
            <li class="links-list-item"><a href="http://www.sqpinternational.com/capabilities.php">SQP International</a></li>
            <li class="links-list-item"><a href="http://www.saturnpcb.com/pcb_toolkit.htm">Saturn PCB Toolkit</a></li>
            <li class="links-list-item"><a href="https://fedevel.com/blog/high-speed-pcb-design-rules-lesson-4-of-advanced-pcb-layout/">High Speed PCB Design Rules (Lesson 4 of Advanced PCB Layout)</a></li>
        </ul>
    </div>

How to decide on Minimum Gap / Clearance in PCB Layout

<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/XorSXQhP42w" class="youtube-player" width="740" height="416.418" frameborder="0" allowfullscreen></iframe></span>
    </div>
    <div class="blog-content">
        Have you ever wondered what does it mean when you read or hear about Object programming? What is the big deal about it? This video will help you to understand 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">Intro</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">00:16</span><span class="chapters-text">Javascript</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">00:59</span><span class="chapters-text">Canvas</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">01:45</span><span class="chapters-text">Moving Objects</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">02:37</span><span class="chapters-text">Moving Objects Up</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">04:24</span><span class="chapters-text">Creating New Objects</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">05:35</span><span class="chapters-text">Drawing Creatures</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">06:43</span><span class="chapters-text">What if</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">08:18</span><span class="chapters-text">Creature</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">10:15</span><span class="chapters-text">Creature Up</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">12:12</span><span class="chapters-text">Creatures</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">14:22</span><span class="chapters-text">Parameter Functions</span>
            </li>
        </ul>
    </div> 
    <div class="blog-content-links">
        <div>
            Links:
        </div>
        <ul class="links-list">
            <li class="links-list-item"><a href="http://www.imx6rex.com/open-rex/">The final code from the video</a></li>
            <li class="links-list-item"><a href="http://www.w3schools.com/html/tryit.asp?filename=tryhtml_basic">To run the code, COPY & PASTE it into “TRY IT”</a></li>
        </ul>
    </div>  
</div>


Why & How we use Objects in Programming (Javascript Example)

<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/6i4LeVzQqLk" class="youtube-player" width="740" height="416.418" frameborder="0" allowfullscreen></iframe></span>
    </div>
    <div class="blog-content">
        If you would like to see how your PCB board would look in an enclosure or in a box, it’s very easy to do. This is a simple DesignSpark tutorial about creating a box around PCB.
    </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">01:02</span><span class="chapters-text">Javascript</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">01:56</span><span class="chapters-text">Canvas</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">03:11</span><span class="chapters-text">Moving Objects</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">04:15</span><span class="chapters-text">Moving Objects Up</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">07:18</span><span class="chapters-text">Creating New Objects</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">08:02</span><span class="chapters-text">Drawing Creatures</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">14:49</span><span class="chapters-text">What if</span>
            </li>
        </ul>
    </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/2015/11/Our-BOX.pdf">3D PDF</a></li>
            <li class="links-list-item"><a href="http://www.imx6rex.com/rex-uploads/OpenRex_V1I1_PCB.step">3D PCB model</a></li>
            <li class="links-list-item"><a href="http://www.imx6rex.com/rex-uploads/Our_BOX.rsdoc">DesignSpark Project</a></li>
            <li class="links-list-item"><a href="http://www.rs-online.com/designspark/electronics/eng/page/mechanical">DesignSpark software</a></li>
        </ul>
    </div>  
</div>


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