<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/nMwamrZE_rc" class="youtube-player" width="740" height="416.418" frameborder="0" allowfullscreen></iframe></span>
    </div>
    <div class="blog-content">
        In this tutorial you will design and build your own keyboard. You will also learn all the essentials to design and build any electronics. Enjoy!
    </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 tutorial about</span></li>
            <li class="chapters-list-item"><span class="chapters-time">00:39</span><span class="chapters-text">Mounting holes</span></li>
            <li class="chapters-list-item"><span class="chapters-time">02:12</span><span class="chapters-text">USB-C connector</span></li>
            <li class="chapters-list-item"><span class="chapters-time">03:50</span><span class="chapters-text">Drawing board shape</span></li>
            <li class="chapters-list-item"><span class="chapters-time">06:27</span><span class="chapters-text">Rotary encoders</span></li>
            <li class="chapters-list-item"><span class="chapters-time">07:11</span><span class="chapters-text">Buttons</span></li>
            <li class="chapters-list-item"><span class="chapters-time">09:22</span><span class="chapters-text">Sockets</span></li>
            <li class="chapters-list-item"><span class="chapters-time">10:40</span><span class="chapters-text">LEDs under buttons</span></li>
            <li class="chapters-list-item"><span class="chapters-time">12:44</span><span class="chapters-text">Metal plate holders</span></li>
            <li class="chapters-list-item"><span class="chapters-time">13:49</span><span class="chapters-text">RP2040</span></li>
            <li class="chapters-list-item"><span class="chapters-time">14:48</span><span class="chapters-text">USER and Power LEDs</span></li>
            <li class="chapters-list-item"><span class="chapters-time">17:44</span><span class="chapters-text">Debug header</span></li>
            <li class="chapters-list-item"><span class="chapters-time">18:01</span><span class="chapters-text">Set Net and Layer colors</span></li>
            <li class="chapters-list-item"><span class="chapters-time">19:29</span><span class="chapters-text">Decoupling capacitors around MCU</span></li>
            <li class="chapters-list-item"><span class="chapters-time">24:15</span><span class="chapters-text">USB resistors</span></li>
            <li class="chapters-list-item"><span class="chapters-time">25:00</span><span class="chapters-text">Crystal circuit</span></li>
            <li class="chapters-list-item"><span class="chapters-time">27:00</span><span class="chapters-text">Series termination resistors</span></li>
            <li class="chapters-list-item"><span class="chapters-time">28:30</span><span class="chapters-text">Filters</span></li>
            <li class="chapters-list-item"><span class="chapters-time">30:40</span><span class="chapters-text">Flash</span></li>
            <li class="chapters-list-item"><span class="chapters-time">31:27</span><span class="chapters-text">Reset button + schematic update</span></li>
            <li class="chapters-list-item"><span class="chapters-time">34:06</span><span class="chapters-text">Boot button and circuit update</span></li>
            <li class="chapters-list-item"><span class="chapters-time">35:53</span><span class="chapters-text">Components around USB-C connector</span></li>
            <li class="chapters-list-item"><span class="chapters-time">38:09</span><span class="chapters-text">Power for LEDs</span></li>
            <li class="chapters-list-item"><span class="chapters-time">38:46</span><span class="chapters-text">Voltage regulator</span></li>
            <li class="chapters-list-item"><span class="chapters-time">39:52</span><span class="chapters-text">LED resistors</span></li>
            <li class="chapters-list-item"><span class="chapters-time">41:08</span><span class="chapters-text">Level translator</span></li>
            <li class="chapters-list-item"><span class="chapters-time">41:59</span><span class="chapters-text">Diodes</span></li>
            <li class="chapters-list-item"><span class="chapters-time">44:37</span><span class="chapters-text">Components around encoders</span></li>
            <li class="chapters-list-item"><span class="chapters-time">49:26</span><span class="chapters-text">Decoupling capacitors for LEDs</span></li>
            <li class="chapters-list-item"><span class="chapters-time">51:46</span><span class="chapters-text">Double check position of components</span></li>
            <li class="chapters-list-item"><span class="chapters-time">53:27</span><span class="chapters-text">Placement finished</span></li>
            <li class="chapters-list-item"><span class="chapters-time">54:14</span><span class="chapters-text">Thank you for watching</span></li>
    </div>
    
    <div class="blog-content-links">
        <div>
            Links:
        </div>
        <ul class="links-list">
            <li class="links-list-item"><a href="https://oshwlab.com/robertferanec/custom-keyboard">Finished project (EasyEDA)</a></li>
            <li class="links-list-item"><a href="https://github.com/FEDEVEL/custom-keyboard">Github (HW + 3D + SW)</a></li>
            <li class="links-list-item"><a href="https://www.thingiverse.com/thing:6784228">Thingiverse (3D)</a></li>
            <li class="links-list-item"><a href="https://www.youtube.com/playlist?list=PLXvLToQzgzdftro2qK5In8p6ExsDFdpzw">Link to the complete playlist</a></li>
            <li class="links-list-item"><a href="https://fedevel.com/courses">FEDEVEL Online courses</a></li>
        </ul>
    </div>  
</div>

Tutorial - Custom DIY Keyboard Design and Build | Part 3: PCB - Component Placement

<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/rMoTqSC9wrY" class="youtube-player" width="740" height="416.418" frameborder="0" allowfullscreen></iframe></span>
    </div>
    <div class="blog-content">
In this tutorial you will design and build your own keyboard. You will also learn all the essentials to design and build any electronics. Enjoy!
    </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 tutorial about</span></li>
            <li class="chapters-list-item"><span class="chapters-time">00:16</span><span class="chapters-text">Adding socket for switch</span></li>
            <li class="chapters-list-item"><span class="chapters-time">09:23</span><span class="chapters-text">Adding switch</span></li>
            <li class="chapters-list-item"><span class="chapters-time">19:21</span><span class="chapters-text">Adding diode</span></li>
            <li class="chapters-list-item"><span class="chapters-time">20:48</span><span class="chapters-text">Connecting keyboard matrix</span></li>
            <li class="chapters-list-item"><span class="chapters-time">35:05</span><span class="chapters-text">Adding rotary encoder</span></li>
            <li class="chapters-list-item"><span class="chapters-time">42:21</span><span class="chapters-text">Connecting encoder</span></li>
            <li class="chapters-list-item"><span class="chapters-time">44:26</span><span class="chapters-text">Adding 10nF capacitor</span></li>
            <li class="chapters-list-item"><span class="chapters-time">56:39</span><span class="chapters-text">Adding and connecting LEDs</span></li>
            <li class="chapters-list-item"><span class="chapters-time">1:03:46</span><span class="chapters-text">Adding buffer</span></li>
            <li class="chapters-list-item"><span class="chapters-time">1:08:03</span><span class="chapters-text">Connecting LED power and adding 0.1R</span></li>
            <li class="chapters-list-item"><span class="chapters-time">1:10:28</span><span class="chapters-text">Adding RGB LED</span></li>
            <li class="chapters-list-item"><span class="chapters-time">1:18:53</span><span class="chapters-text">Adding mounting holes</span></li>
            <li class="chapters-list-item"><span class="chapters-time">1:24:37</span><span class="chapters-text">Adding stand off</span></li>
            <li class="chapters-list-item"><span class="chapters-time">1:36:54</span><span class="chapters-text">Annotate schematic</span></li>
            <li class="chapters-list-item"><span class="chapters-time">1:41:03</span><span class="chapters-text">Importing schematic to PCB</span></li>
            <li class="chapters-list-item"><span class="chapters-time">1:42:21</span><span class="chapters-text">Thank you for watching</span></li>
    </div>

    
    <div class="blog-content-links">
        <div>
            Links:
        </div>
        <ul class="links-list">
            <li class="links-list-item"><a href="https://github.com/FEDEVEL/custom-keyboard">Github (HW + 3D + SW)</a></li>
            <li class="links-list-item"><a href="https://fedevel.com/courses">FEDEVEL Online courses</a></li>
        </ul>
    </div>  
</div>

Tutorial - Custom DIY Keyboard Design and Build | Part 2: Keyboard Schematic

<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/N4cLFE0FF2U" class="youtube-player" width="740" height="416.418" frameborder="0" allowfullscreen></iframe></span>
    </div>
    <div class="blog-content">
        In this tutorial you will design and build your own keyboard. You will also learn all the essentials to design and build any electronics. Enjoy!
    </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 tutorial about</span></li>
            <li class="chapters-list-item"><span class="chapters-time">03:34</span><span class="chapters-text">Starting a new project</span></li>
            <li class="chapters-list-item"><span class="chapters-time">08:42</span><span class="chapters-text">Adding RP2040</span></li>
            <li class="chapters-list-item"><span class="chapters-time">14:43</span><span class="chapters-text">Adding 100nF</span></li>
            <li class="chapters-list-item"><span class="chapters-time">20:12</span><span class="chapters-text">Adding 2.2uF</span></li>
            <li class="chapters-list-item"><span class="chapters-time">23:14</span><span class="chapters-text">Adding 200R</span></li>
            <li class="chapters-list-item"><span class="chapters-time">25:43</span><span class="chapters-text">Adding 27R</span></li>
            <li class="chapters-list-item"><span class="chapters-time">27:40</span><span class="chapters-text">Adding USB-C connector</span></li>
            <li class="chapters-list-item"><span class="chapters-time">31:25</span><span class="chapters-text">Adding ESD protection</span></li>
            <li class="chapters-list-item"><span class="chapters-time">34:03</span><span class="chapters-text">Adding 1uF</span></li>
            <li class="chapters-list-item"><span class="chapters-time">36:10</span><span class="chapters-text">Connecting USB CC pins</span></li>
            <li class="chapters-list-item"><span class="chapters-time">36:46</span><span class="chapters-text">Adding 5.1k</span></li>
            <li class="chapters-list-item"><span class="chapters-time">38:21</span><span class="chapters-text">Voltage regulator 5V to 3V3</span></li>
            <li class="chapters-list-item"><span class="chapters-time">42:27</span><span class="chapters-text">Adding 47uF</span></li>
            <li class="chapters-list-item"><span class="chapters-time">45:49</span><span class="chapters-text">Crystal ABM8-272-T3</span></li>
            <li class="chapters-list-item"><span class="chapters-time">47:22</span><span class="chapters-text">Adding 1k</span></li>
            <li class="chapters-list-item"><span class="chapters-time">48:32</span><span class="chapters-text">Adding 15pF</span></li>
            <li class="chapters-list-item"><span class="chapters-time">49:48</span><span class="chapters-text">Adding 1M</span></li>
            <li class="chapters-list-item"><span class="chapters-time">52:52</span><span class="chapters-text">Flash W25Q128JVS</span></li>
            <li class="chapters-list-item"><span class="chapters-time">58:20</span><span class="chapters-text">Boot Select Button</span></li>
            <li class="chapters-list-item"><span class="chapters-time">1:01:09</span><span class="chapters-text">Adding 100k</span></li>
            <li class="chapters-list-item"><span class="chapters-time">1:03:10</span><span class="chapters-text">Reset Button</span></li>
            <li class="chapters-list-item"><span class="chapters-time">1:04:28</span><span class="chapters-text">Adding 10k</span></li>
            <li class="chapters-list-item"><span class="chapters-time">1:08:23</span><span class="chapters-text">Adding 1x3 Header</span></li>
            <li class="chapters-list-item"><span class="chapters-time">1:11:50</span><span class="chapters-text">User LED</span></li>
            <li class="chapters-list-item"><span class="chapters-time">1:15:06</span><span class="chapters-text">Power LED</span></li>
            <li class="chapters-list-item"><span class="chapters-time">1:16:38</span><span class="chapters-text">Thank you for watching</span></li>
    </div>
    
    <div class="blog-content-links">
        <div>
            Links:
        </div>
        <ul class="links-list">
            <li class="links-list-item"><a href="https://oshwlab.com/robertferanec/custom-keyboard">Finished project (EasyEDA)</a></li>
            <li class="links-list-item"><a href="https://github.com/FEDEVEL/custom-keyboard">Github (HW + 3D + SW)</a></li>
            <li class="links-list-item"><a href="https://www.thingiverse.com/thing:6784228">Thingiverse (3D)</a></li>
            <li class="links-list-item"><a href="https://www.youtube.com/playlist?list=PLXvLToQzgzdftro2qK5In8p6ExsDFdpzw">Link to the complete playlist</a></li>
            <li class="links-list-item"><a href="https://fedevel.com/courses">FEDEVEL Online courses</a></li>
        </ul>
    </div>  
</div>

Tutorial - Custom DIY Keyboard Design and Build: Schematic + PCB + Case | Part 1 - RP2040

<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/OqN7xNn92pc" class="youtube-player" width="740" height="416.418" frameborder="0" allowfullscreen></iframe></span>
    </div>
    <div class="blog-content">
        After watching this video you may be considering CAN for your next project. Thank you very much Ken.
    </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">00:25</span><span class="chapters-text">About CAN bus</span></li>
            <li class="chapters-list-item"><span class="chapters-time">03:11</span><span class="chapters-text">Hardware setup and CAN boards used in this video</span></li>
            <li class="chapters-list-item"><span class="chapters-time">05:27</span><span class="chapters-text">CAN termination and cable</span></li>
            <li class="chapters-list-item"><span class="chapters-time">10:19</span><span class="chapters-text">How to use CAN in your own system</span></li>
            <li class="chapters-list-item"><span class="chapters-time">12:18</span><span class="chapters-text">MCP2518 CAN controller</span></li>
            <li class="chapters-list-item"><span class="chapters-time">13:08</span><span class="chapters-text">CAN Signals</span></li>
            <li class="chapters-list-item"><span class="chapters-time">17:07</span><span class="chapters-text">CAN Identifier</span></li>
            <li class="chapters-list-item"><span class="chapters-time">21:11</span><span class="chapters-text">CAN implementation in a system</span></li>
            <li class="chapters-list-item"><span class="chapters-time">23:33</span><span class="chapters-text">Handling errors in CAN bus</span></li>
            <li class="chapters-list-item"><span class="chapters-time">30:02</span><span class="chapters-text">Getting data based on request - remote frame</span></li>
            <li class="chapters-list-item"><span class="chapters-time">32:18</span><span class="chapters-text">Software setup</span></li>
            <li class="chapters-list-item"><span class="chapters-time">33:57</span><span class="chapters-text">Using microPython to communicate over CAN bus</span></li>
            <li class="chapters-list-item"><span class="chapters-time">39:44</span><span class="chapters-text">About CAN timestmaps</span></li>
            <li class="chapters-list-item"><span class="chapters-time">43:48</span><span class="chapters-text">CAN priority explained</span></li>
            <li class="chapters-list-item"><span class="chapters-time">49:46</span><span class="chapters-text">Tools to debug CAN bus</span></li>
            <li class="chapters-list-item"><span class="chapters-time">55:01</span><span class="chapters-text">What Ken does, CAN bus security</span></li>
            <li class="chapters-list-item"><span class="chapters-time">1:06:00</span><span class="chapters-text">Signal vs Reflections</span></li>
            <li class="chapters-list-item"><span class="chapters-time">1:11:36</span><span class="chapters-text">CAN bus baudrate</span></li>
            <li class="chapters-list-item"><span class="chapters-time">1:14:41</span><span class="chapters-text">Are there CAN standards?</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/kentindell/">Ken's Linked In</a></li>
            <li class="links-list-item"><a href="https://canislabs.com/">Ken's company</a></li>
            <li class="links-list-item"><a href="https://fedevel.com/courses">FEDEVEL courses</a></li>
        </ul>
    </div>  
</div>

CAN Bus is Simple and Actually Really Cool | Explained by Ken Tindell

<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/xjQBpsu9Tzc" class="youtube-player" width="740" height="416.418" frameborder="0" allowfullscreen></iframe></span>
    </div>
    <div class="blog-content">
        Impulse response system modelling, simulation, and real-time implementation on an STM32 microcontroller for a guitar cabinet.
    </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">01:34</span><span class="chapters-text">Impulse Response (IR) Basics</span></li>
            <li class="chapters-list-item"><span class="chapters-time">04:17</span><span class="chapters-text">Getting an IR</span></li>
            <li class="chapters-list-item"><span class="chapters-time">06:03</span><span class="chapters-text">IR Audio Sample</span></li>
            <li class="chapters-list-item"><span class="chapters-time">06:15</span><span class="chapters-text">Time Domain</span></li>
            <li class="chapters-list-item"><span class="chapters-time">07:51</span><span class="chapters-text">Frequency Domain</span></li>
            <li class="chapters-list-item"><span class="chapters-time">09:31</span><span class="chapters-text">FIR Filter</span></li>
            <li class="chapters-list-item"><span class="chapters-time">11:04</span><span class="chapters-text">Truncation</span></li>
            <li class="chapters-list-item"><span class="chapters-time">14:18</span><span class="chapters-text">Firmware Implementation</span></li>
            <li class="chapters-list-item"><span class="chapters-time">17:18</span><span class="chapters-text">Test Set-Up</span></li>
            <li class="chapters-list-item"><span class="chapters-time">17:43</span><span class="chapters-text">Measurements (Frequency Domain, IR Length)</span></li>
            <li class="chapters-list-item"><span class="chapters-time">21:03</span><span class="chapters-text">Guitar Demo (Varying IR Length)</span></li>
            <li class="chapters-list-item"><span class="chapters-time">21:46</span><span class="chapters-text">Guitar Demo (Guitar Rig vs Custom DSP)</span></li>
            <li class="chapters-list-item"><span class="chapters-time">22:20</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://en.wikipedia.org/wiki/Impulse_response">Impulse Response Wiki</a></li>
            <li class="links-list-item"><a href="https://www.youtube.com/watch?v=uNNNj9AZisM">FIR Filter Design and Software Implementation</a></li>   
            <li class="links-list-item"><a href="https://www.youtube.com/watch?v=zlGSxZGwj-E">STM32 I2S ADC DMA & Double Buffering - Digital Audio Processing with STM32</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>

Real-Time Impulse Response Simulation in Software (STM32 DSP) - Phil's Lab #126

<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/BDy5tKd1gmo" class="youtube-player" width="740" height="416.418" frameborder="0" allowfullscreen></iframe></span>
    </div>
    <div class="blog-content">
If you need nice 3D pictures of your board, this is how you create them ...
    </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>

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Tutorial - Custom DIY Keyboard Design and Build | Part 3: PCB - Component Placement

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Tutorial - Custom DIY Keyboard Design and Build: Schematic + PCB + Case | Part 1 - RP2040

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