<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/fFI33f4TejM" class="youtube-player" width="740" height="416.418" frameborder="0" allowfullscreen></iframe></span>
    </div>
    <div class="blog-content">
Ken Burns has published 7 hardware projects on Kickstarter. He explains how it works.
    </div>
    
    <div class="blog-content-links">
        <div>
            Links:
        </div>
        <ul class="links-list">
            <li class="links-list-item"><a href="https://tinycircuits.com/">Ken's company TinyCircuits</a></li>
            <li class="links-list-item"><a href="https://fedevel.com/courses">FEDEVEL Online courses</a></li>
        </ul>
    </div>  
</div>

Can You Make Money on Kickstarter HW 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/2oA4X3OTz0M" class="youtube-player" width="740" height="416.418" frameborder="0" allowfullscreen></iframe></span>
    </div>
    <div class="blog-content">
Interesting experiments and examples to help you to understand ground layout in PCB. Explained by Hans Rosenberg
    </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">00:19</span><span class="chapters-text">Currents flow under track</span></li>
            <li class="chapters-list-item"><span class="chapters-time">03:10</span><span class="chapters-text">What happen when you are making a board</span></li>
            <li class="chapters-list-item"><span class="chapters-time">08:37</span><span class="chapters-text">Where currents flow</span></li>
            <li class="chapters-list-item"><span class="chapters-time">14:01</span><span class="chapters-text">Experiment: Cut under track</span></li>
            <li class="chapters-list-item"><span class="chapters-time">19:51</span><span class="chapters-text">Floating copper fill</span></li>
            <li class="chapters-list-item"><span class="chapters-time">23:15</span><span class="chapters-text">Grounded copper fill</span></li>
            <li class="chapters-list-item"><span class="chapters-time">27:04</span><span class="chapters-text">Experiment: Filter</span></li>
            <li class="chapters-list-item"><span class="chapters-time">35:05</span><span class="chapters-text">2 Layer vs. 4 Layer</span></li>
            <li class="chapters-list-item"><span class="chapters-time">44:00</span><span class="chapters-text">3 rules to prevent ground problems</span></li>
            <li class="chapters-list-item"><span class="chapters-time">46:05</span><span class="chapters-text">Example: Ground plane</span></li>
            <li class="chapters-list-item"><span class="chapters-time">49:52</span><span class="chapters-text">Example: 1 VIA per GND pin</span></li>
            <li class="chapters-list-item"><span class="chapters-time">54:46</span><span class="chapters-text">Example: Gap in GND plane</span></li>
            <li class="chapters-list-item"><span class="chapters-time">1:02:00</span><span class="chapters-text">Example: FPGA board redesign</span></li>
            <li class="chapters-list-item"><span class="chapters-time">1:05:16</span><span class="chapters-text">Star grounding</span></li>
            <li class="chapters-list-item"><span class="chapters-time">1:07:39</span><span class="chapters-text">Multiple ground planes</span></li>
            <li class="chapters-list-item"><span class="chapters-time">1:14:30</span><span class="chapters-text">Example: Digital and Analog on one board</span></li>
            <li class="chapters-list-item"><span class="chapters-time">1:16:40</span><span class="chapters-text">About Hans</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/@HansRosenberg74">Hans´ YouTube</a></li>
            <li class="links-list-item"><a href="https://www.hans-rosenberg.com/">Hans´ website</a></li>
            <li class="links-list-item"><a href="https://fedevel.com/courses">FEDEVEL Online courses</a></li>
        </ul>
    </div>  
</div>

Examples of BAD Ground in PCB Layout And How to Fix It

<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/X-qubBLJDD8" class="youtube-player" width="740" height="416.418" frameborder="0" allowfullscreen></iframe></span>
    </div>
    <div class="blog-content">
What will happen if you don't have enough GND pins on your connector?
    </div>
    
    <div class="blog-content-links">
        <div>
            Links:
        </div>
        <ul class="links-list">
            <li class="links-list-item"><a href="https://www.colorado.edu/faculty/bogatin/">About Eric</a></li>
            <li class="links-list-item"><a href="https://fedevel.com/courses">FEDEVEL Online courses</a></li>
        </ul>
    </div>  
</div>

Do You Design Connector Pinout Correctly? | 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/vX3l0iRxi8c" class="youtube-player" width="740" height="416.418" frameborder="0" allowfullscreen></iframe></span>
    </div>
    <div class="blog-content">
See the difference between a module with PCB antenna placed in the middle of a board vs. at the edge. 
    </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">01:08</span><span class="chapters-text">What we will simulate</span></li>
            <li class="chapters-list-item"><span class="chapters-time">02:09</span><span class="chapters-text">Antenna placement - what to think about</span></li>
            <li class="chapters-list-item"><span class="chapters-time">12:31</span><span class="chapters-text">ESP32 module antenna simulation</span></li>
            <li class="chapters-list-item"><span class="chapters-time">19:11</span><span class="chapters-text">Module placed in the middle of a board</span></li>
            <li class="chapters-list-item"><span class="chapters-time">24:06</span><span class="chapters-text">Module placed at the edge of a board</span></li>
            <li class="chapters-list-item"><span class="chapters-time">41:01</span><span class="chapters-text">About Katerina's job</span></li>
            <li class="chapters-list-item"><span class="chapters-time">43:32</span><span class="chapters-text">Simulation setup
            </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/katerinagalitskaya/">Katerina´s LinkedIn</a></li>
            <li class="links-list-item"><a href="https://fedevel.com/courses">FEDEVEL Online courses</a></li>
        </ul>
    </div>  
</div>

Don't place PCB antenna into middle of your board. Here is why .... | ESP32

<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/hmcTdNyV-pQ" class="youtube-player" width="740" height="416.418" frameborder="0" allowfullscreen></iframe></span>
    </div>
    <div class="blog-content">
Should you use a special PCB material? Maybe ... 
    </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">00:40</span><span class="chapters-text">Loss in PCB vs. signal shape</span></li>
            <li class="chapters-list-item"><span class="chapters-time">09:10</span><span class="chapters-text">Materials used in PCBs</span></li>
            <li class="chapters-list-item"><span class="chapters-time">15:34</span><span class="chapters-text">How to decide which material to use?</span></li>
            <li class="chapters-list-item"><span class="chapters-time">17:26</span><span class="chapters-text">Why do there are losses in PCB dielectric?</span></li>
            <li class="chapters-list-item"><span class="chapters-time">21:48</span><span class="chapters-text">Why 2.45GHz is in microwave#</span></li>
            <li class="chapters-list-item"><span class="chapters-time">23:04</span><span class="chapters-text">Loss factor</span></li>
            <li class="chapters-list-item"><span class="chapters-time">26:27</span><span class="chapters-text">Filler</span></li>
            <li class="chapters-list-item"><span class="chapters-time">28:36</span><span class="chapters-text">PTFE - Teflon</span></li>
            <li class="chapters-list-item"><span class="chapters-time">34:29</span><span class="chapters-text">Using special material on selected layers only</span></li>
            <li class="chapters-list-item"><span class="chapters-time">37:14</span><span class="chapters-text">Structure of materials in PCB and its effect on signal</span></li>
            <li class="chapters-list-item"><span class="chapters-time">49:28</span><span class="chapters-text">Dielectric constant</span></li>
            <li class="chapters-list-item"><span class="chapters-time">52:46</span><span class="chapters-text">Losses in copper - skin effect</span></li>
            <li class="chapters-list-item"><span class="chapters-time">1:05:01</span><span class="chapters-text">What Alun does</span></li>
            <li class="chapters-list-item"><span class="chapters-time">1:08:48</span><span class="chapters-text">Tolerances in PCB</span></li>
            <li class="chapters-list-item"><span class="chapters-time">1:14:43</span><span class="chapters-text">Dielectric constant vs. trace width</span></li>
            <li class="chapters-list-item"><span class="chapters-time">1:17:48</span><span class="chapters-text">PCB materials in FLEX</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/alun-morgan-04050a14/">Alun´s LinkedIn</a></li>
            <li class="links-list-item"><a href="https://fedevel.com/courses">FEDEVEL Online courses</a></li>
        </ul>
    </div>  
</div>

Need To Know This About PCB Materials

<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/sCHK3P5tn7s" class="youtube-player" width="740" height="416.418" frameborder="0" allowfullscreen></iframe></span>
    </div>
    <div class="blog-content">
        I2C implementation tips (pull-up resistor sizing, bus capacitance, schematic gotchas, and PCB design).
    </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">02:33</span><span class="chapters-text">I2C Basics</span></li>
            <li class="chapters-list-item"><span class="chapters-time">07:19</span><span class="chapters-text">Bus Capacitance</span></li>
            <li class="chapters-list-item"><span class="chapters-time">11:15</span><span class="chapters-text">Pull-Up Resistors</span></li>
            <li class="chapters-list-item"><span class="chapters-time">18:29</span><span class="chapters-text">Repeaters, Level Shifters, and Multiplexers</span></li>
            <li class="chapters-list-item"><span class="chapters-time">21:06</span><span class="chapters-text">Schematic Tips</span></li>
            <li class="chapters-list-item"><span class="chapters-time">25:16</span><span class="chapters-text">PCB Design Tips</span></li>
            <li class="chapters-list-item"><span class="chapters-time">34:20</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=_JQAve05o_0&ab_channel=Phil%E2%80%99sLab">How To Write A Driver (STM32, I2C)</a></li>
            <li class="links-list-item"><a href="https://www.nxp.com/docs/en/user-guide/UM10204.pdf">I2C Bus Specification and User Manual</a></li>
            <li class="links-list-item"><a href="https://www.nxp.com/docs/en/training-reference-material/DESIGNING-WITH-I2C-BUS-DEVICES.pdf">Designing with I2C Bus Devices</a></li>
            <li class="links-list-item"><a href="https://www.ti.com/lit/an/slva689/slva689.pdf?ts=1608399660926">I2C Bus Pull-Up Resistor Calculation</a></li>
            <li class="links-list-item"><a href="https://www.ti.com/lit/an/scpa054/scpa054.pdf?ts=1709118605496">Why, When, and How To Use I2C Buffers</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>

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I2C Hardware & PCB Design - Phil's Lab #132

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