<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="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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