From 16d28628aca9b2d356de31c319f5e7bc0f5b2b02 Mon Sep 17 00:00:00 2001
From: Bradley Taunt <bt@btxx.org>
Date: Sat, 8 Jun 2024 13:43:37 -0400
Subject: Remove incorrectly generated files, fix up markdown articles

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 	<title>Portable Pi: Cheap Raspberry Pi Zero Hacker Terminal</title>
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 <main>
 <h1 id="portable-pi-cheap-raspberry-pi-zero-hacker-terminal">Portable Pi: Cheap Raspberry Pi Zero Hacker Terminal</h1>
-
 <p>2020-09-16</p>
-
 <p><em>I recently came across <a href="https://n-o-d-e.net/zeroterminal3.html">the incredibly cool design</a> for an &#8220;ultimate Raspberry Pi computer&#8221;</em> by NODE and was inspired to create my own &#8220;portable&#8221; Pi device. Although, with my concept, I decided to set a few restrictions on the build:</p>
-
 <ul>
 <li>I wanted to keep the total cost as low as possible 
-
 <ul>
 <li>including the Pi Zero <em>and</em> extra hardware</li>
 </ul></li>
@@ -31,23 +28,15 @@
 <li>I wanted to make the full design extremely portable &#47; lightweight</li>
 <li>I wanted to keep the build as user-friendly as possible (no soldering, odd hacks etc.)</li>
 </ul>
-
 <p>With these constraints put in place, I built my very own Raspberry Pi Zero &#8220;hacker&#8221; terminal. You can see the finished product below:</p>
-
 <p><img src="/public/images/portable-pi-1.webp" alt="Portable Pi front" /></p>
-
 <p><img src="/public/images/portable-pi-2.webp" alt="Portable Pi back" /></p>
-
 <p>I&#8217;m pretty happy with the final outcome and best of all - you can easily recreate this yourself with little-to-no effort!</p>
-
 <p>So enough chit-chat - let&#8217;s build this bad-boy!</p>
-
 <blockquote>
 <p><strong>Note:</strong> Most items in the hardware section are Amazon affiliate links</p>
 </blockquote>
-
 <h2 id="table-of-contents">Table of Contents</h2>
-
 <ol>
 <li><a href="#expectations">Setting Expectations</a></li>
 <li><a href="#hardware">The Hardware</a></li>
@@ -55,19 +44,13 @@
 <li><a href="#setup">Getting Setup</a></li>
 <li><a href="#summary">Final Summary</a></li>
 </ol>
-
 <p><strong>This hardware will not</strong> replace your laptop or any other &#8220;high-powered&#8221; portable device. Honestly, you&#8217;re mobile phone would (most likely) work better in terms of a compact-sized computer. The concept behind this &#8220;portable pi&#8221; project was to make something <em>for fun</em>.</p>
-
 <p>Please reserve any sassy comments about how buying a cheap $50 laptop off eBay would be more efficient than building out something like I have done here. You&#8217;re missing the point entirely.</p>
-
 <p>Moving on for those still interested&#8230; </p>
-
 <p>I live in Canada, so some of the options are based on available hardware near my location. You&#8217;re likely to find similar hardware close to your own country for better pricing &#47; shipping costs.</p>
-
 <blockquote>
 <p><strong>Note</strong>: I&#8217;ve decided to use a wireless, USB dongle-based keyboard. You can opt to use a bluetooth-based keyboard, but I just find them more trouble than they are worth (keeping a charge, losing connections, interference from other devices)</p>
 </blockquote>
-
 <ul>
 <li>SBC: <a href="https://amzn.to/3jCVXHG">Raspberry Pi Zero WH</a></li>
 <li>Storage &#47; OS: <a href="https://amzn.to/2GHm01R">64GB Micro SD Card</a> (Always have an SD backup!)</li>
@@ -77,29 +60,17 @@
 <li>Keyboard: <a href="https://amzn.to/2Gqkwt6">Mini USB Wireless Keyboard</a></li>
 <li>Adapter: <a href="https://amzn.to/36I6T3c">Micro USB OTG Cable</a></li>
 </ul>
-
 <h4 id="raspberry-pi-zero-wh">Raspberry Pi Zero WH</h4>
-
 <p>You will need a Raspberry Pi Zero W with GPIO header pins already soldered on to the board. (You could also do this yourself manually if you have the tools and skill to do so)</p>
-
 <h4 id="li-ion-battery-hat">Li-Ion Battery HAT</h4>
-
 <p>This HAT holds a single li-ion battery and for our purposes will connect with our Pi Zero via the GPIO header pins. You could also look into double-set battery HATs if that is something you would prefer - for my needs a single rechargeable battery works fine.</p>
-
 <p>Since our main &#8220;OS&#8221; is purely terminal based, I find you don&#8217;t really need a li-ion battery with a massive amount of power storage. 2500mAh will easily last a handful of hours mucking about with emails, files and web browsing. Plus, you can always carry a few extras for swapping out on-the-go.</p>
-
 <h4 id="3.5-inch-tft-display">3.5-inch TFT Display</h4>
-
 <p>A simple and fairly cheap touchscreen display. We won&#8217;t require our display to render videos or pretty graphics (since we will be entirely terminal-based) so this works just fine for our needs. I am using version 6.3 for this build.</p>
-
 <h4 id="micro-usb-otg-adapter">Micro USB OTG Adapter</h4>
-
 <p>As mentioned above, this item is optional if you feel more comfortable with using a pure bluetooth keyboard. I just personally prefer this method.</p>
-
 <h4 id="wireless-keyboard">Wireless Keyboard</h4>
-
 <p>In my product demo image at the beginning of the article, I&#8217;m actually using an old Logitech wireless keyboard since this one still hasn&#8217;t arrived. I plan to swap them out once I have it - the Logitech is far to large to be deemed &#8220;portable&#8221;.</p>
-
 <ul>
 <li>Operating System: <a href="https://www.raspberrypi.org/downloads/raspberry-pi-os/">Raspberry Pi OS Lite</a></li>
 <li>Display Driver: <a href="http://kedei.net/raspberry/raspberry.html">KeDei 3.5 Driver</a></li>
@@ -108,29 +79,22 @@
 <li>Text Editor: <a href="https://www.nano-editor.org/">Nano</a></li>
 <li>Code Editor: <a href="https://www.vim.org/">Vim</a></li>
 </ul>
-
 <p>I will be setting up this &#8220;portable pi&#8221; via <a href="https://www.raspberrypi.org/documentation/configuration/wireless/headless.md">headless installation</a> with my main <a href="https://uglyduck.ca/my-pi-desktop/">Raspberry Pi 4 desktop</a>. Included below are some quick instructions on how to setup the Raspberry Pi Zero for <code>ssh</code> access.</p>
-
 <h4 id="preparing-the-microsd-card">Preparing the microSD card</h4>
-
 <ul>
 <li><p>Use Raspberry Pi Imager to write the Raspberry Pi Lite OS to your microSD card
-
 <ul>
 <li>Once complete, remove the microSD storage device and then re-connect it</li>
 </ul></p></li>
 <li><p>Navigate to the <code>boot</code> folder of the microSD device - we will be adding 2 files here
-
 <ul>
 <li>First add a completely empty file and name it <code>ssh</code> (no file extension)</li>
 <li>Next add an empty file named <code>wpa_supplicant.conf</code></li>
 </ul></p></li>
 <li><p>Open the <code>wpa_supplicant.conf</code> file in a code &#47; text editor and paste the following (be sure to change <code>country</code> to your proper country code, as well as properly setting your network name &#47; password):</p>
-
 <p>ctrl<em>interface=DIR=&#47;var&#47;run&#47;wpa</em>supplicant GROUP=netdev
 update_config=1
 country=US</p>
-
 <p>network={
     ssid="Your network name&#47;SSID&#8221;
     psk="Your WPA&#47;WPA2 security key&#8221;
@@ -140,66 +104,45 @@ country=US</p>
 <li><p>Assemble the Raspberry Pi Zero with the Battery HAT (li-ion battery attached) connected via GPIO pins, and the 3.5 display connected on-top of the battery HAT&#8217;s pins</p></li>
 <li><p>Turn on the battery HAT switch to power the RPi Zero. Give the device roughly 90 seconds to perform the initial boot</p></li>
 </ul>
-
 <blockquote>
 <p><strong>Note</strong>: the display will turn on but only show a white screen - this is normal</p>
 </blockquote>
-
 <h4 id="connecting-to-your-zero-via-ssh">Connecting to your Zero via SSH</h4>
-
 <p>Open the terminal on your Raspberry Pi desktop and enter the following command:</p>
-
 <pre><code>ssh pi@raspberrypi.local
 </code></pre>
-
 <p>You will then be asked if you wish to trust this device (say yes), then prompted for the <code>pi</code> user&#8217;s password - which is <code>raspberry</code>. After a moment you will be directly connected to your Raspberry Pi Zero. Hooray!</p>
-
 <p>We just want to make a couple small configuration changes before going forward (mostly for security):</p>
-
 <ol>
 <li>Run the command <code>sudo raspi-config</code></li>
 <li>Select &#8220;Change User Password&#8221; from the menu and change the password
 <img src="/public/images/raspi-config.webp" alt="Raspberry config" /></li>
 <li>After that, select &#8220;Network Options&#8221; and change your device name
-
 <ul>
 <li>This will avoid any conflicts of connecting to newer RPi devices down the line</li>
 </ul></li>
 </ol>
-
 <p>That&#8217;s it!</p>
-
 <h4 id="installing-display-driver">Installing display driver</h4>
-
 <p>Next we will need to download and run the drivers needed for our 3.5-inch display to play nicely with our Pi Zero (just a blank white screen doesn&#8217;t help us much). While connected to our RPi Zero via SSH, run the following commands:</p>
-
 <pre><code>wget http:&#47;&#47;kedei.net&#47;raspberry&#47;v6_1&#47;LCD_show_v6_1_3.tar.gz
 </code></pre>
-
 <p>If you have snail-paced rural internet like I do, now is a good time to go and grab a coffee while this download completes.</p>
-
 <p>Once the download has finished, extract the contents and navigate to the new directory and install the driver:</p>
-
 <pre><code>sudo tar xzf LCD_show_v6_1_3.tar.gz
 cd LCD_show_v6_1_3
 sudo .&#47;LCD35_v
 </code></pre>
-
 <p>Once completed, the RPi Zero will reboot and everything should work as expected!</p>
-
 <h4 id="installing-software">Installing software</h4>
-
 <p>I&#8217;m not going to jump into heavy details about installing terminal-based software for this setup. The links I&#8217;ve attached in the software section should provide you with more than enough information to get started. For reference, I&#8217;m using a very basic set of applications:</p>
-
 <ul>
 <li>Neomutt (emails)</li>
 <li>Lynx (quick and simple web browsing)</li>
 <li>Nano (writing notes &#47; blog posts in a hurry)</li>
 <li>Vim (making any config edits or project work)</li>
 </ul>
-
 <p>There you have it - a terminal-based, portable Raspberry Pi Zero &#8220;hacker&#8221; device. </p>
-
 <p>Is it practical? Not really. Can it replace any other <em>portable</em> device you might own? Probably not. Is it fun to make and experiment on? You bet! And in the end - isn&#8217;t that what matters most with pet Pi projects?</p>
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