<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/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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How to choose PCB?

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