<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-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-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/kOXN13C_gRk" class="youtube-player" width="740" height="416.418" frameborder="0" allowfullscreen></iframe></span>
    </div>
    <div class="blog-content">
How to come up with ideas for electronics projects and having fun when building them. Talking with Chris Greening
    </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">00:23</span><span class="chapters-text">How to come up with ideas</span></li>
            <li class="chapters-list-item"><span class="chapters-time">02:23</span><span class="chapters-text">How Chris learned and designed his 1st PCB</span></li>
            <li class="chapters-list-item"><span class="chapters-time">05:53</span><span class="chapters-text">EasyEDA vs. KiCAD</span></li>
            <li class="chapters-list-item"><span class="chapters-time">11:42</span><span class="chapters-text">Wireless LEDs</span></li>
            <li class="chapters-list-item"><span class="chapters-time">21:04</span><span class="chapters-text">Haptic knob</span></li>
            <li class="chapters-list-item"><span class="chapters-time">27:53</span><span class="chapters-text">Printing PCB at Home</span></li>
            <li class="chapters-list-item"><span class="chapters-time">32:26</span><span class="chapters-text">USB Tester</span></li>
            <li class="chapters-list-item"><span class="chapters-time">37:25</span><span class="chapters-text">ESP32 and MP3</span></li>
            <li class="chapters-list-item"><span class="chapters-time">41:57</span><span class="chapters-text">ESP-Now</span></li>
            <li class="chapters-list-item"><span class="chapters-time">44:37</span><span class="chapters-text">Minimalistic Microcontroller & TV project</span></li>
            <li class="chapters-list-item"><span class="chapters-time">50:17</span><span class="chapters-text">Touch Spectrum</span></li>
            <li class="chapters-list-item"><span class="chapters-time">59:32</span><span class="chapters-text">Paper display / ePaper</span></li>
            <li class="chapters-list-item"><span class="chapters-time">1:09:00</span><span class="chapters-text">DYI Alexa</span></li>
            <li class="chapters-list-item"><span class="chapters-time">1:15:01</span><span class="chapters-text">Laser Projected Asteroids game</span></li>
            <li class="chapters-list-item"><span class="chapters-time">1:24:10</span><span class="chapters-text">Your project may not work ...</span></li>
            <li class="chapters-list-item"><span class="chapters-time">1:31:51</span><span class="chapters-text">3D printing</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/@atomic14">Chris´ YT channel</a></li>
            <li class="links-list-item"><a href="https://esp32zx.substack.com/about">Chris´ ZX Spectrum Project</a></li>
            <li class="links-list-item"><a href="https://fedevel.com/courses">FEDEVEL Online courses</a></li>
        </ul>
    </div>  
</div>

Cool DIY Electronics Projects

<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/w9gxB6XVHnk" class="youtube-player" width="740" height="416.418" frameborder="0" allowfullscreen></iframe></span>
    </div>
    <div class="blog-content">
        This video explains a simple way to create queries for filters and rules + we will go through some useful examples.
    </div>
</div>


Altium: How to create Filters & Rules EASY (+ 8 Useful Examples)

<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/zOByx3Izf5U" class="youtube-player" width="740" height="416.418" frameborder="0" allowfullscreen></iframe></span>
    </div>
    <div class="blog-content">
        How to implement a PID controller in software using C, discussing theory and practical considerations. Demonstration of PID controller code using a custom flight simulator.<br><br>

[NOTE] Something I forgot to mention in the video! Note on 'derivative-on-measurement': Since the 'error signal' effectively going into the differentiator does not depend on the setpoint: e[n] = 0 - measurement, and therefore (e[n] - e[n - 1]) = (0 - measurement) - (0 - prevMeasurement) = -Kd * (measurement - prevMeasurement). Note the minus sign compared to derivative-on-error!
I've made the change in the Git repo - before you would have had to use a negative Kd gain to get the same result. Now you can, as normal with derivative-on-error, use a positive Kd gain as usual.<br><br>

Additional note: The derivative low-pass filter can be controlled by the constant 'tau', which is the time constant of the filter (-3dB frequency in Hz, fc = 1 / (2*pi*tau)). A larger value of tau means the signal is filtered more heavily. As tau approaches zero, the differentiator approaches a 'pure differentiator' with no filtering.
    </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">Introduction</span></li>
            <li class="chapters-list-item"><span class="chapters-time">00:39</span><span class="chapters-text">Control system basics</span></li>
            <li class="chapters-list-item"><span class="chapters-time">02:40</span><span class="chapters-text">PID representation in continuous domain</span></li>
            <li class="chapters-list-item"><span class="chapters-time">04:57</span><span class="chapters-text">Converting from the continuous to the discrete domain</span></li>
            <li class="chapters-list-item"><span class="chapters-time">06:11</span><span class="chapters-text">PID controller difference equation</span></li>
            <li class="chapters-list-item"><span class="chapters-time">07:35</span><span class="chapters-text">Practical considerations</span></li>
            <li class="chapters-list-item"><span class="chapters-time">10:48</span><span class="chapters-text">Basic software structure</span></li>
            <li class="chapters-list-item"><span class="chapters-time">11:53</span><span class="chapters-text">Implementation in C</span></li>
            <li class="chapters-list-item"><span class="chapters-time">18:46</span><span class="chapters-text">Example: Flight simulator using PID controller code</span></li>
        </ul>
    </div>
    <div class="blog-content-links">
        <div>
            Links:
        </div>
        <ul class="links-list">
            <li class="links-list-item"><a href="https://github.com/pms67/PID">Github - Source code</a></li>

            <li class="links-list-item"><a href="https://fedevel.com/courses">FEDEVEL courses</a></li>
        </ul>
    </div>  
</div>

PID Controller Implementation in Software - Phil's Lab #6

<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/zbWwdEyCOUE" class="youtube-player" width="740" height="416.418" frameborder="0" allowfullscreen></iframe></span>
    </div>
    <div class="blog-content">
        Running different currents through PCB Tracks and checking them with thermal camera.
    </div>
    <div class="blog-content-links">
        <div>
            Links:
        </div>
        <ul class="links-list">
            <li class="links-list-item"><a href="https://youtu.be/56FvQX63Ea0">The Same Simple Board but Different Layouts</a></li>
            <li class="links-list-item"><a href="https://youtu.be/_bp7bRtX_hI">Using Thermal Camera to inspect a PCB</a></li>
            <li class="links-list-item"><a href="https://www.patreon.com/robertferanec">My Patreon?</a></li>
        </ul>
    </div>   
</div>


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