<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/9lEtkysFGGg" class="youtube-player" width="740" height="416.418" frameborder="0" allowfullscreen></iframe></span>
    </div>
    <div class="blog-content">
        Watch how signals are travelling through a PCB. Thank you very much Yuriy Shlepnev.
    </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">00:32</span><span class="chapters-text">Fields for THICK 2 Layer PCB (1mm / 40mil)</span></li>
            <li class="chapters-list-item"><span class="chapters-time">04:47</span><span class="chapters-text">Fields for THIN 2 Layer PCB (0.1mm / 4mil)</span></li>
            <li class="chapters-list-item"><span class="chapters-time">08:44</span><span class="chapters-text">Fields size compared 1mm vs 0.1mm</span></li>
            <li class="chapters-list-item"><span class="chapters-time">09:11</span><span class="chapters-text">Crosstalk, fields, currents for 2 Layer PCB (two tracks)</span></li>
            <li class="chapters-list-item"><span class="chapters-time">16:56</span><span class="chapters-text">Currents in track</span></li>
            <li class="chapters-list-item"><span class="chapters-time">21:24</span><span class="chapters-text">Comparing crosstalk in numbers (2 layer PCB)</span></li>
            <li class="chapters-list-item"><span class="chapters-time">27:43</span><span class="chapters-text">Crosstalk for 5W gap between tracks</span></li>
            <li class="chapters-list-item"><span class="chapters-time">35:45</span><span class="chapters-text">About Simbeor simulation software</span></li>
            <li class="chapters-list-item"><span class="chapters-time">40:57</span><span class="chapters-text">Fields inside of PCB for one track</span></li>
            <li class="chapters-list-item"><span class="chapters-time">45:00</span><span class="chapters-text">Fields size compared (symmetrical vs. not symmetrical)</span></li>
            <li class="chapters-list-item"><span class="chapters-time">45:52</span><span class="chapters-text">Crosstalk, fields, currents inside of PCB for two tracks</span></li>
            <li class="chapters-list-item"><span class="chapters-time">49:25</span><span class="chapters-text">Comparing crosstalk in numbers (inside PCB)</span></li>
            <li class="chapters-list-item"><span class="chapters-time">56:29</span><span class="chapters-text">Comparing 2 layer vs inside PCB crosstalk for 5W</span></li>
            <li class="chapters-list-item"><span class="chapters-time">1:00:44</span><span class="chapters-text">Animation of signal travelling through track</span></li>
            <li class="chapters-list-item"><span class="chapters-time">1:04:54</span><span class="chapters-text">Animation - Moving tracks further from each other</span></li>
            <li class="chapters-list-item"><span class="chapters-time">1:07:14</span><span class="chapters-text">Signals running through both tracks</span></li>
            <li class="chapters-list-item"><span class="chapters-time">1:10:14</span><span class="chapters-text">Adding GND track with 2 vias between tracks</span></li>
            <li class="chapters-list-item"><span class="chapters-time">1:12:12</span><span class="chapters-text">Adding many vias only</span></li>
            <li class="chapters-list-item"><span class="chapters-time">1:13:37</span><span class="chapters-text">Adding many vias and track</span></li>
            <li class="chapters-list-item"><span class="chapters-time">1:17:12</span><span class="chapters-text">Importing a real board to Simbeor and analyzing crosstalk</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/yuriy-shlepnev-7b39136/">Yuriy´s LinkedIn</a></li>
            <li class="links-list-item"><a href="https://www.simberian.com/">Yuriy´s company</a></li>
            <li class="links-list-item"><a href="https://fedevel.com/courses">FEDEVEL Online courses</a></li>
        </ul>
    </div>  
</div>

Don’t design PCB without watching this!

<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/HaLMjVkKYMw" class="youtube-player" width="740" height="416.418" frameborder="0" allowfullscreen></iframe></span>
    </div>
    <div class="blog-content">
When a ferrite bead should not be used in power rail and when it is ok. 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">00:00</span><span class="chapters-text">The problem</span></li>
            <li class="chapters-list-item"><span class="chapters-time">00:32</span><span class="chapters-text">Power distribution network</span></li>
            <li class="chapters-list-item"><span class="chapters-time">02:56</span><span class="chapters-text">What is inductance and why it is a problem</span></li>
            <li class="chapters-list-item"><span class="chapters-time">09:18</span><span class="chapters-text">What is ferrite bead</span></li>
            <li class="chapters-list-item"><span class="chapters-time">12:30</span><span class="chapters-text">The problem for what we need beads</span></li>
            <li class="chapters-list-item"><span class="chapters-time">18:15</span><span class="chapters-text">Solution: LDO</span></li>
            <li class="chapters-list-item"><span class="chapters-time">19:44</span><span class="chapters-text">Solution: Filter (ferrite bead)</span></li>
            <li class="chapters-list-item"><span class="chapters-time">22:58</span><span class="chapters-text">Inductor in power rail: Yes or No?</span></li>
            <li class="chapters-list-item"><span class="chapters-time">26:46</span><span class="chapters-text">Practical example: Setup</span></li>
            <li class="chapters-list-item"><span class="chapters-time">34:17</span><span class="chapters-text">Measurement: No filter</span></li>
            <li class="chapters-list-item"><span class="chapters-time">36:12</span><span class="chapters-text">Measurement: Ferrite bead only</span></li>
            <li class="chapters-list-item"><span class="chapters-time">38:36</span><span class="chapters-text">Measurement: Ferrite bead + capacitor</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´s Linked In</a></li>
            <li class="links-list-item"><a href="https://www.colorado.edu/ecee/academics/graduate-programs/professional-masters/high-speed-digital-engineering">Study High-Speed Digital Engineering at University</a></li>
            <li class="links-list-item"><a href="https://youtu.be/ARwBwHZESOY">What Decoupling Capacitor Value To Use And Where To Place Them</a></li>
            <li class="links-list-item"><a href="https://fedevel.com/courses">FEDEVEL Online courses</a></li>
        </ul>
    </div>  
</div>

Shall We Use a Ferrite Bead in Power Rail or Not? | Explained by 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/wCYNTt5krDM" class="youtube-player" width="740" height="416.418" frameborder="0" allowfullscreen></iframe></span>
    </div>
    <div class="blog-content">
        Class D audio amplifier basics, part selection, schematic and PCB design, and test.
    </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">01:01</span><span class="chapters-text">Class D Amplifier Basics</span></li>
            <li class="chapters-list-item"><span class="chapters-time">05:25</span><span class="chapters-text">IC Choice</span></li>
            <li class="chapters-list-item"><span class="chapters-time">07:36</span><span class="chapters-text">Schematic</span></li>
            <li class="chapters-list-item"><span class="chapters-time">16:18</span><span class="chapters-text">PCB</span></li>
            <li class="chapters-list-item"><span class="chapters-time">22:51</span><span class="chapters-text">'No Load' Test</span></li>
            <li class="chapters-list-item"><span class="chapters-time">25:18</span><span class="chapters-text">Guitar Demo</span></li>
            <li class="chapters-list-item"><span class="chapters-time">26:57</span><span class="chapters-text">Outro</span></li>
    </div>
    <div class="blog-content-links">
        <div>
            Links:
        </div>
        <ul class="links-list">
            <li class="links-list-item"><a href="https://www.youtube.com/watch?v=O1UagNkcxi4">Class D Amplifier Tutorial!</a></li>
            <li class="links-list-item"><a href="https://en.wikipedia.org/wiki/Power_amplifier_classes">Power amplifier classes</a></li>   
            <li class="links-list-item"><a href="https://www.ti.com/lit/an/sloa242a/sloa242a.pdf">Inductor selection guide</a></li>   
            <li class="links-list-item"><a href="https://www.ti.com/product/TPA3116D2">TPA3116D2 IC</a></li>     
            <li class="links-list-item"><a href="https://fedevel.com/courses/advanced-digital-hardware-design">Advanced Digital Hardware Design course</a></li>
            <li class="links-list-item"><a href="https://fedevel.com/courses/mixed-signal-hardware-design-with-kicad">Mixed-signal Hardware Design course</a></li>
            <li class="links-list-item"><a href="https://fedevel.com/courses">FEDEVEL courses</a></li>
        </ul>
    </div>  
</div>

Class D Audio Amplifier Hardware Design - Phil's Lab #125

<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/t8MKDOuAs78" class="youtube-player" width="740" height="416.418" frameborder="0" allowfullscreen></iframe></span>
    </div>
    <div class="blog-content">
Behind the scenes - have a look how libraries are created for EasyEDA software.
    </div>
    
    <div class="blog-content-links">
        <div>
            Links:
        </div>
        <ul class="links-list">
            <li class="links-list-item"><a href="https://jlcpcb.com/">Thank you very much to JLCPCB</a></li>
            <li class="links-list-item"><a href="https://fedevel.com/courses">FEDEVEL Online courses</a></li>
        </ul>
    </div>  
</div>

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

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

Don’t design PCB without watching this!

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