<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/sfcFgt5RZbM" class="youtube-player" width="740" height="416.418" frameborder="0" allowfullscreen></iframe></span>
    </div>
    <div class="blog-content">
Watch close details of building a keyboard - from soldering to programming. Enjoy!
    </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 a real electronic product from home… and recorded everything

<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/tqi6PU8U-W0" class="youtube-player" width="740" height="416.418" frameborder="0" allowfullscreen></iframe></span>
    </div>
    <div class="blog-content">
        I built a circuit designed by AI.
    </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">00:39</span><span class="chapters-text">Building the circuit</span></li>
            <li class="chapters-list-item"><span class="chapters-time">03:47</span><span class="chapters-text">Installing CircuitPython</span></li>
            <li class="chapters-list-item"><span class="chapters-time">05:53</span><span class="chapters-text">Running and fixing the code</span></li>
            <li class="chapters-list-item"><span class="chapters-time">08:33</span><span class="chapters-text">Results</span></li>
    </div>
    
    <div class="blog-content-links">
        <div>
            Links:
        </div>
        <ul class="links-list">
            <li class="links-list-item"><a href="https://x.com/i/grok/share/5T8BmTFnsI9Rr195HKz5qPQ8U">My chat with A</a></li>
            <li class="links-list-item"><a href="https://fedevel.com/courses">FEDEVEL Online courses</a></li>
        </ul>
    </div>  
</div>

I asked AI to design an electronic circuit and write software for it. Here is what happened ...

<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/r_zaDXqUSn8" class="youtube-player" width="740" height="416.418" frameborder="0" allowfullscreen></iframe></span>
    </div>
    <div class="blog-content">
For everyone who would like to learn how to start with RP2040 / RP2350 programming. Thank you very much Scott Shawcroft
    </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">01:52</span><span class="chapters-text">Flashing CircuitPython on Raspberry PI PICO</span></li>
            <li class="chapters-list-item"><span class="chapters-time">05:48</span><span class="chapters-text">How to run your code</span></li>
            <li class="chapters-list-item"><span class="chapters-time">10:29</span><span class="chapters-text">Blinky example</span></li>
            <li class="chapters-list-item"><span class="chapters-time">16:28</span><span class="chapters-text">Addressable RGB LED example - NeoPixel</span></li>
            <li class="chapters-list-item"><span class="chapters-time">30:13</span><span class="chapters-text">Input example - Push button</span></li>
            <li class="chapters-list-item"><span class="chapters-time">37:10</span><span class="chapters-text">About serial port</span></li>
            <li class="chapters-list-item"><span class="chapters-time">42:12</span><span class="chapters-text">Making an USB keyboard - example</span></li>
            <li class="chapters-list-item"><span class="chapters-time">53:19</span><span class="chapters-text">I2C example</span></li>
            <li class="chapters-list-item"><span class="chapters-time">1:06:59</span><span class="chapters-text">WiFi Example</span></li>
            <li class="chapters-list-item"><span class="chapters-time">1:15:45</span><span class="chapters-text">Webserver and controlling LED over WiFi example</span></li>
            <li class="chapters-list-item"><span class="chapters-time">1:22:04</span><span class="chapters-text">About Scott</span></li>
    </div>

    
    <div class="blog-content-links">
        <div>
            Links:
        </div>
        <ul class="links-list">
            <li class="links-list-item"><a href="https://www.linkedin.com/in/tannewt/">Scott´s LinkedIn</a></li>
            <li class="links-list-item"><a href="https://adafruit-playground.com/u/tannewt/pages/robert-feranec-stream-notes">Download examples from the video here</a></li>
            <li class="links-list-item"><a href="https://fedevel.com/courses">FEDEVEL Online courses</a></li>
        </ul>
    </div>  
</div>

Starting with RP2040 / RP2350 PICO - Programming Tutorial for Beginners | StepByStep | CircuitPython

<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/EF7SxgcDfCo" class="youtube-player" width="740" height="416.418" frameborder="0" allowfullscreen></iframe></span>
    </div>
    <div class="blog-content">
        The best animation to explain crosstalk I have ever seen! Thank you Eric.
    </div>
    <div class="blog-content-chapters">
        <div>
            Chapters:
        </div>
        <ul class="chapters-list">
            <li class="chapters-list-item">
                <span class="chapters-time">00:01</span><span class="chapters-text">Have You Ever Had Problems with Crosstalk</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">04:58</span><span class="chapters-text">How Do You Get Crosstalk through Electric Fields</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">05:17</span><span class="chapters-text">How Do You Get Current through a Capacitor</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">06:52</span><span class="chapters-text">Changing Electric Field</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">07:31</span><span class="chapters-text">Displacement Current</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">10:33</span><span class="chapters-text">Reference Plane</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">11:38</span><span class="chapters-text">What About Two Layer Pcb</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">14:42</span><span class="chapters-text">Electrically Long Interconnect</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">19:18</span><span class="chapters-text">Flash Animation</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">19:48</span><span class="chapters-text">Capacity Coupled Current</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">22:43</span><span class="chapters-text">The Coupling Region</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">26:19</span><span class="chapters-text">Inductive Coupling</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">27:46</span><span class="chapters-text">The Direction of the Induced Current Loop</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">30:32</span><span class="chapters-text">Inductively Coupled Current</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">46:34</span><span class="chapters-text">Ratio the Foreign Crosstalk Coefficient</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.linkedin.com/in/eric-bogatin-368860/">Eric Bogatin</a></li>
        </ul>
    </div>   
</div>


What Every PCB Designer Should Know – Crosstalk Explained (with Eric Bogatin)

<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/ukfsupePkOM" class="youtube-player" width="740" height="416.418" frameborder="0" allowfullscreen></iframe></span>
    </div>
    <div class="blog-content">
        Do you know why PCB Manufacturer may use tin to protect tracks and VIAs when your PCB is manufactured? Do you know how exactly PCB VIA plating is done?
    </div>
    <div class="blog-content-chapters">
        <div>
            Chapters:
        </div>
        <ul class="chapters-list">
            <li class="chapters-list-item">
                <span class="chapters-time">00:03</span><span class="chapters-text">Intro</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">02:36</span><span class="chapters-text">How a Pcb Is Manufactured</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">04:25</span><span class="chapters-text">Remove the Drill Smear</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">06:00</span><span class="chapters-text">Electro Plating</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">06:46</span><span class="chapters-text">Electro Less Plating</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">07:01</span><span class="chapters-text">Electroless Plating</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">08:04</span><span class="chapters-text">How Do You Get Copper To Stick to Fiberglass</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">09:31</span><span class="chapters-text">Micro Etch</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">12:14</span><span class="chapters-text">Silver Has a Higher Redox Potential than Tin</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">15:43</span><span class="chapters-text">Accelerator Bath</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">19:14</span><span class="chapters-text">Board after Electroless Plating</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">20:27</span><span class="chapters-text">Electron Lighting and Electroplating</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">23:43</span><span class="chapters-text">Electroplating</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">28:40</span><span class="chapters-text">Protect the Copper inside the via Barrels during Etching</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">29:57</span><span class="chapters-text">Copper Plating</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">30:41</span><span class="chapters-text">Electroplating Tin</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">33:18</span><span class="chapters-text">Bad Plating</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">36:29</span><span class="chapters-text">Chemicals That Are Added to the Electroless Bath</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">42:33</span><span class="chapters-text">The Electroplating</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">46:35</span><span class="chapters-text">Bare Bones Pcbs</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">59:46</span><span class="chapters-text">Electroplated Gold</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">1:03:20</span><span class="chapters-text">Microvias Edge Plating and Castellated Holes</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">1:09:24</span><span class="chapters-text">Edge Plating</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">1:15:24</span><span class="chapters-text">Can You Do Plating at Home</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">1:16:54</span><span class="chapters-text">Equipment</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.kaileyshara.com/">Kailey Shara</a></li>
            <li class="links-list-item"><a href="https://www.linkedin.com/in/kaileyshara/">Kailey Shara LinkedIn</a></li>
            <li class="links-list-item"><a href="https://www.4pcb.com/media/presentation-how-to-build-pcb.pdf">Advanced Circuits PDF</a></li>
            <li class="links-list-item"><a href="https://www.youtube.com/watch?v=sIV0icM_Ujo&ab_channel=Eurocircuits">Eurocircuits - how to make a 4-layer PCB (full version)</a></li>
        </ul>
    </div>   
</div>


How Does Copper Get Inside of a VIA Hole in Your PCB – Do you know this? (with Kailey Shara)

<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/eFByKdIhlL4" class="youtube-player" width="740" height="416.418" frameborder="0" allowfullscreen></iframe></span>
    </div>
    <div class="blog-content">
        What is the most important thing for you when selecting chips for your boards?
    </div>
</div>


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What to consider when selecting chips for your new board (MCU, CPU, Ethernet, Audio, …)

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