<div class="entry-content">
 <div class="jetpack-video-wrapper"><iframe src="https://www.youtube.com/embed/nMwamrZE_rc" class="youtube-player" width="740" height="416.418" frameborder="0" allowfullscreen></iframe>
 </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">00:00What is this tutorial about</li>
 <li class="chapters-list-item">00:39Mounting holes</li>
 <li class="chapters-list-item">02:12USB-C connector</li>
 <li class="chapters-list-item">03:50Drawing board shape</li>
 <li class="chapters-list-item">06:27Rotary encoders</li>
 <li class="chapters-list-item">07:11Buttons</li>
 <li class="chapters-list-item">09:22Sockets</li>
 <li class="chapters-list-item">10:40LEDs under buttons</li>
 <li class="chapters-list-item">12:44Metal plate holders</li>
 <li class="chapters-list-item">13:49RP2040</li>
 <li class="chapters-list-item">14:48USER and Power LEDs</li>
 <li class="chapters-list-item">17:44Debug header</li>
 <li class="chapters-list-item">18:01Set Net and Layer colors</li>
 <li class="chapters-list-item">19:29Decoupling capacitors around MCU</li>
 <li class="chapters-list-item">24:15USB resistors</li>
 <li class="chapters-list-item">25:00Crystal circuit</li>
 <li class="chapters-list-item">27:00Series termination resistors</li>
 <li class="chapters-list-item">28:30Filters</li>
 <li class="chapters-list-item">30:40Flash</li>
 <li class="chapters-list-item">31:27Reset button + schematic update</li>
 <li class="chapters-list-item">34:06Boot button and circuit update</li>
 <li class="chapters-list-item">35:53Components around USB-C connector</li>
 <li class="chapters-list-item">38:09Power for LEDs</li>
 <li class="chapters-list-item">38:46Voltage regulator</li>
 <li class="chapters-list-item">39:52LED resistors</li>
 <li class="chapters-list-item">41:08Level translator</li>
 <li class="chapters-list-item">41:59Diodes</li>
 <li class="chapters-list-item">44:37Components around encoders</li>
 <li class="chapters-list-item">49:26Decoupling capacitors for LEDs</li>
 <li class="chapters-list-item">51:46Double check position of components</li>
 <li class="chapters-list-item">53:27Placement finished</li>
 <li class="chapters-list-item">54:14Thank you for watching</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"><iframe src="https://www.youtube.com/embed/rMoTqSC9wrY" class="youtube-player" width="740" height="416.418" frameborder="0" allowfullscreen></iframe>
 </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">00:00What is this tutorial about</li>
 <li class="chapters-list-item">00:16Adding socket for switch</li>
 <li class="chapters-list-item">09:23Adding switch</li>
 <li class="chapters-list-item">19:21Adding diode</li>
 <li class="chapters-list-item">20:48Connecting keyboard matrix</li>
 <li class="chapters-list-item">35:05Adding rotary encoder</li>
 <li class="chapters-list-item">42:21Connecting encoder</li>
 <li class="chapters-list-item">44:26Adding 10nF capacitor</li>
 <li class="chapters-list-item">56:39Adding and connecting LEDs</li>
 <li class="chapters-list-item">1:03:46Adding buffer</li>
 <li class="chapters-list-item">1:08:03Connecting LED power and adding 0.1R</li>
 <li class="chapters-list-item">1:10:28Adding RGB LED</li>
 <li class="chapters-list-item">1:18:53Adding mounting holes</li>
 <li class="chapters-list-item">1:24:37Adding stand off</li>
 <li class="chapters-list-item">1:36:54Annotate schematic</li>
 <li class="chapters-list-item">1:41:03Importing schematic to PCB</li>
 <li class="chapters-list-item">1:42:21Thank you for watching</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"><iframe src="https://www.youtube.com/embed/N4cLFE0FF2U" class="youtube-player" width="740" height="416.418" frameborder="0" allowfullscreen></iframe>
 </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">00:00What is this tutorial about</li>
 <li class="chapters-list-item">03:34Starting a new project</li>
 <li class="chapters-list-item">08:42Adding RP2040</li>
 <li class="chapters-list-item">14:43Adding 100nF</li>
 <li class="chapters-list-item">20:12Adding 2.2uF</li>
 <li class="chapters-list-item">23:14Adding 200R</li>
 <li class="chapters-list-item">25:43Adding 27R</li>
 <li class="chapters-list-item">27:40Adding USB-C connector</li>
 <li class="chapters-list-item">31:25Adding ESD protection</li>
 <li class="chapters-list-item">34:03Adding 1uF</li>
 <li class="chapters-list-item">36:10Connecting USB CC pins</li>
 <li class="chapters-list-item">36:46Adding 5.1k</li>
 <li class="chapters-list-item">38:21Voltage regulator 5V to 3V3</li>
 <li class="chapters-list-item">42:27Adding 47uF</li>
 <li class="chapters-list-item">45:49Crystal ABM8-272-T3</li>
 <li class="chapters-list-item">47:22Adding 1k</li>
 <li class="chapters-list-item">48:32Adding 15pF</li>
 <li class="chapters-list-item">49:48Adding 1M</li>
 <li class="chapters-list-item">52:52Flash W25Q128JVS</li>
 <li class="chapters-list-item">58:20Boot Select Button</li>
 <li class="chapters-list-item">1:01:09Adding 100k</li>
 <li class="chapters-list-item">1:03:10Reset Button</li>
 <li class="chapters-list-item">1:04:28Adding 10k</li>
 <li class="chapters-list-item">1:08:23Adding 1x3 Header</li>
 <li class="chapters-list-item">1:11:50User LED</li>
 <li class="chapters-list-item">1:15:06Power LED</li>
 <li class="chapters-list-item">1:16:38Thank you for watching</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"><iframe src="https://www.youtube.com/embed/BDy5tKd1gmo" class="youtube-player" width="740" height="416.418" frameborder="0" allowfullscreen></iframe>
 </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>

Tutorial - Simple Way to Create Nice 3D Pictures of Your Board

<div class="entry-content">
 <div class="jetpack-video-wrapper"><iframe src="https://www.youtube.com/embed/j2YGHZG1bLY" class="youtube-player" width="740" height="416.418" frameborder="0" allowfullscreen></iframe>
 </div>
 <div class="blog-content">
Watch how we probe the silicon of a chip and do laser drilling of a silicon die. A lot of information about why and how to probe silicon. Thank you very much John McMaster.
 </div>
 
 <div class="blog-content-chapters">
 <div>
 Chapters:
 </div>
 <ul class="chapters-list">
 <li class="chapters-list-item">00:00What is this video about</li>
 <li class="chapters-list-item">00:18Why to probe silicon?</li>
 <li class="chapters-list-item">04:39How is the silicon probed? How does the probe look?</li>
 <li class="chapters-list-item">09:06Probe needles</li>
 <li class="chapters-list-item">10:49About probing silicon</li>
 <li class="chapters-list-item">17:36How to remove package</li>
 <li class="chapters-list-item">20:36Probing and broken bond wires</li>
 <li class="chapters-list-item">24:12Probing to read firmware, bypassing on chip fuses</li>
 <li class="chapters-list-item">29:37What microscope to use to probe chips</li>
 <li class="chapters-list-item">40:21Material the probes are made from</li>
 <li class="chapters-list-item">41:35How to know where to probe the silicon</li>
 <li class="chapters-list-item">51:46Why / how - wafer test</li>
 <li class="chapters-list-item">59:31About John and his work</li>
 <li class="chapters-list-item">1:04:56More about probes</li>
 <li class="chapters-list-item">1:08:46Probe cards</li>
 <li class="chapters-list-item">1:12:33Wafer probers / testers</li>
 <li class="chapters-list-item">1:18:26Wafer storage</li>
 <li class="chapters-list-item">1:22:13Optical probing</li>
 <li class="chapters-list-item">1:25:34Alignment</li>
 <li class="chapters-list-item">1:28:00Wafers aren´t flat</li>
 <li class="chapters-list-item">1:30:13Probe holders - Micro positioners</li>
 <li class="chapters-list-item">1:37:19About extracting firmware from 80C51</li>
 <li class="chapters-list-item">1:42:15Hans on micro probing class</li>
 <li class="chapters-list-item">1:44:16Live chip probing</li>
 <li class="chapters-list-item">1:47:55Live: Preparing the probe</li>
 <li class="chapters-list-item">1:52:51Live: Putting the probe on silicon</li>
 <li class="chapters-list-item">2:00:34Live: Laser drilling to silicon </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/mcmasterjohn/">John´s Linked In</a></li>
 <li class="links-list-item"><a href="https://twitter.com/johndmcmaster">John´s Twitter / X</a></li>
 <li class="links-list-item"><a href="https://fedevel.com/courses">FEDEVEL Online courses</a></li>
 </ul>
 </div> 
</div>

How to probe the silicon inside of a chip | Explained by John McMaster

<div class="entry-content">
 <div class="jetpack-video-wrapper"><iframe src="https://www.youtube.com/embed/xjQBpsu9Tzc" class="youtube-player" width="740" height="416.418" frameborder="0" allowfullscreen></iframe>
 </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">00:00Intro</li>
 <li class="chapters-list-item">01:34Impulse Response (IR) Basics</li>
 <li class="chapters-list-item">04:17Getting an IR</li>
 <li class="chapters-list-item">06:03IR Audio Sample</li>
 <li class="chapters-list-item">06:15Time Domain</li>
 <li class="chapters-list-item">07:51Frequency Domain</li>
 <li class="chapters-list-item">09:31FIR Filter</li>
 <li class="chapters-list-item">11:04Truncation</li>
 <li class="chapters-list-item">14:18Firmware Implementation</li>
 <li class="chapters-list-item">17:18Test Set-Up</li>
 <li class="chapters-list-item">17:43Measurements (Frequency Domain, IR Length)</li>
 <li class="chapters-list-item">21:03Guitar Demo (Varying IR Length)</li>
 <li class="chapters-list-item">21:46Guitar Demo (Guitar Rig vs Custom DSP)</li>
 <li class="chapters-list-item">22:20Outro</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>

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

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

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

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

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