<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/Rfsq0EwJ5Xs" class="youtube-player" width="740" height="416.418" frameborder="0" allowfullscreen></iframe></span>
    </div>
    <div class="blog-content">
        How to check pin connections of a chip and what to be careful about.
    </div>
    <div class="blog-content-links">
        <div>
            Links:
        </div>
        <ul class="links-list">
            <li class="links-list-item"><a href="https://designhelp.fedevel.com/forum/test/pcb-layout/10466-hdmi-connection">Original project can be downloaded from here</a></li>
        </ul>
    </div>    
</div>


How to Draw Schematic & Tips to Improve Schematic – Checking Pin Connections (Part 2)

<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/pKD4kBWA5cw" class="youtube-player" width="740" height="416.418" frameborder="0" allowfullscreen></iframe></span>
    </div>
    <div class="blog-content">
        An inspiring story about how Sam designed and built his own smartwatch from scratch. You can do it too … design your own dreams.
    </div>
    <div class="blog-content-chapters">
        <div>
            Chapters:
        </div>
        <ul class="chapters-list">
            <li class="chapters-list-item">
                <span class="chapters-time">04:49</span><span class="chapters-text">Schematic</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">05:38</span><span class="chapters-text">Charger</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">08:02</span><span class="chapters-text">Vibration Motor</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">08:50</span><span class="chapters-text">Display</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">14:20</span><span class="chapters-text">Components</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">45:17</span><span class="chapters-text">Antenna</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">48:06</span><span class="chapters-text">How Do You Know that the Antenna is Fine</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">49:44</span><span class="chapters-text">Acceleromater</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">50:26</span><span class="chapters-text">Accelerometer</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">1:05:42</span><span class="chapters-text">Apple Notification Center Service</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">1:06:04</span><span class="chapters-text">Notification Point</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.instagram.com/samsonmarch">Sam´s instagram</a></li>
            <li class="links-list-item"><a href="https://www.linkedin.com/in/samson-march/">Sam´s LinkedIn</a></li>
            <li class="links-list-item"><a href="https://twitter.com/Samson_March">Sam´s Twitter</a></li>
            <li class="links-list-item"><a href="https://github.com/S-March/smarchWatch_PUBLIC/">Github</a></li>
        </ul>
    </div>    
    <div class="blog-content-links">
        <div>
            Links from the video:
        </div>
        <ul class="links-list">
            <li class="links-list-item"><a href="https://imgur.com/gallery/FSBwD3g">Original post</a></li>
            <li class="links-list-item"><a href="https://www.infineon.com/dgdl/Infineon-PSoC_4_4200_BLE_Family_Datasheet_Programmable_System-on-Chip-DataSheet-v01_00-EN.pdf?fileId=8ac78c8c7d0d8da4017d0ee5f2a26ddd&utm_source=cypress&utm_medium=referral&utm_campaign=202110_globe_en_all_integration-files&redirId=File_4_0_721">PSOC 4</a></li>
            <li class="links-list-item"><a href="https://www.renesas.com/eu/en/products/wireless-connectivity/bluetooth-low-energy/da14682-smartbond-bluetooth-low-energy-50-soc-enhanced-security-and-flash">DIALOG website</a></li>
            <li class="links-list-item"><a href="https://www.amazon.com/AMELIN-Lightness-240x240-round-display/dp/B079HV5MVP">Display on AMAZON</a></li>
            <li class="links-list-item"><a href="https://images-na.ssl-images-amazon.com/images/I/91wbMasrSfL.pdf">Display Datasheet</a></li>
            <li class="links-list-item"><a href="https://newhavendisplay.com/content/datasheets/ST7789V.pdf">Display Driver datasheet (ST7789V)</a></li>
            <li class="links-list-item"><a href="https://www.amazon.com/Monoprice-Calibration-Assembled-Preloaded-Printable/dp/B07CJQ3D6L">Mini Delta 3D Printer</a></li>
            <li class="links-list-item"><a href="https://www.autodesk.com/products/fusion-360/personal">Fusion 360</a></li>
            <li class="links-list-item"><a href="https://www.esslinger.com/watch-crystals/">Glass</a></li>
            <li class="links-list-item"><a href="https://www.pcbway.com/multi-layer-laminated-structure.html">PCB Way stackups</a></li>
            <li class="links-list-item"><a href="https://www.amazon.com/SMTHouse-Infrared-Soldering-Machine-Automatic/dp/B0152FTXN2">Reflow oven T962</a></li>
            <li class="links-list-item"><a href="https://www.digikey.com/en/products/detail/segger-microcontroller-systems/8.08.91-J-LINK-EDU-MINI/7387472">JTAG EDU</a></li>
            <li class="links-list-item"><a href="https://youtu.be/tizClSFVHnQ">My Bluetooth project video</a></li>
            <li class="links-list-item"><a href="https://www.reddit.com/r/DIY/comments/bivyok/i_made_a_smartwatch_from_scratch/">Original Reddit post</a></li>
            <li class="links-list-item"><a href="https://consent.yahoo.com/v2/collectConsent?sessionId=3_cc-session_ade03cc2-c84b-4382-8d22-c723d2b212f7">Original Engadget article</a></li>
        </ul>
    </div>    
</div>


Open Source Smartwatch – Samson March

<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/qJd_BMDNfrk" class="youtube-player" width="740" height="416.418" frameborder="0" allowfullscreen></iframe></span>
    </div>
    <div class="blog-content">
        How to redirect high speed interfaces, about decoupling the chips and connectors, about cables and connector pinout
    </div>
    <div class="blog-content-links">
        <div>
            Links:
        </div>
        <ul class="links-list">
            <li class="links-list-item"><a href="https://designhelp.fedevel.com/forum/test/pcb-layout/10466-hdmi-connection">Original project can be downloaded from here</a></li>
        </ul>
    </div>    
</div>


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