3 files changed, 16 insertions, 15 deletions
diff --git a/_site/feed.xml b/_site/feed.xml
index 9a57c65..ed5a433 100644
--- a/_site/feed.xml
+++ b/_site/feed.xml
@@ -1 +1 @@
-<?xml version="1.0" encoding="utf-8"?><feed xmlns="http://www.w3.org/2005/Atom" ><generator uri="https://jekyllrb.com/" version="4.4.1">Jekyll</generator><link href="/feed.xml" rel="self" type="application/atom+xml" /><link href="/" rel="alternate" type="text/html" /><updated>2025-12-21T01:20:43+08:00</updated><id>/feed.xml</id><title type="html">ASCIIMX | Log</title><author><name>W. D. Sadeep Madurange</name></author><entry><title type="html">How to manage Suckless software installations</title><link href="/log/suckless-software/" rel="alternate" type="text/html" title="How to manage Suckless software installations" /><published>2025-11-30T00:00:00+08:00</published><updated>2025-11-30T00:00:00+08:00</updated><id>/log/suckless-software</id><author><name>W. D. Sadeep Madurange</name></author><summary type="html"><![CDATA[Since suckless software requires users to modify the source code and recompile to customize, I need a way to maintain patches over the long term while retaining the ability to upgrade the software as new versions are released.]]></summary></entry><entry><title type="html">Fingerprint door lock</title><link href="/log/fpm-door-lock/" rel="alternate" type="text/html" title="Fingerprint door lock" /><published>2025-08-18T00:00:00+08:00</published><updated>2025-08-18T00:00:00+08:00</updated><id>/log/fpm-door-lock</id><author><name>W. D. Sadeep Madurange</name></author><summary type="html"><![CDATA[This project features a fingerprint door lock powered by an ATmega328P microcontroller.]]></summary></entry><entry><title type="html">On the use of MOSFETs as electronic switches</title><link href="/log/mosfet-switches/" rel="alternate" type="text/html" title="On the use of MOSFETs as electronic switches" /><published>2025-06-22T00:00:00+08:00</published><updated>2025-06-22T00:00:00+08:00</updated><id>/log/mosfet-switches</id><author><name>W. D. Sadeep Madurange</name></author><summary type="html"><![CDATA[Recently, I needed a low-power circuit for one of my battery-operated projects. Much of the system’s power savings depended on its ability to electronically switch off components, such as servos, that draw high levels of quiescent currents. My search for a solution led me to MOSFETs, transistors capable of controlling circuits operating at voltages far above their own.]]></summary></entry><entry><title type="html">How to configure ATmega328P microcontrollers to run at 3.3V and 5V</title><link href="/log/arduino-uno/" rel="alternate" type="text/html" title="How to configure ATmega328P microcontrollers to run at 3.3V and 5V" /><published>2025-06-10T00:00:00+08:00</published><updated>2025-06-10T00:00:00+08:00</updated><id>/log/arduino-uno</id><author><name>W. D. Sadeep Madurange</name></author><summary type="html"><![CDATA[This is a quick reference for wiring up ATmega328P ICs to run at 5V and 3.3V. While the 5V configuration is common, the 3.3V configuration can be useful in low-power applications and when interfacing with parts that themselves run at 3.3V. In this guide, the 5V setup is configured with a 16MHz crystal oscillator, while the 3.3V configuration makes use of an 8MHz crystal oscillator.]]></summary></entry><entry><title type="html">My first PCB</title><link href="/log/my-first-pcb/" rel="alternate" type="text/html" title="My first PCB" /><published>2025-04-26T00:00:00+08:00</published><updated>2025-04-26T00:00:00+08:00</updated><id>/log/my-first-pcb</id><author><name>W. D. Sadeep Madurange</name></author><summary type="html"><![CDATA[In 2023, I started tinkering with DIY electronics as a hobby. Until now, I’ve been using development boards like the Arduino Uno and ESP-32-WROOM so that I can focus on the software. Recently, I decided to step outside of my comfort zone and design a PCB from scratch for a door lock I’m working on.]]></summary></entry><entry><title type="html">Bumblebee: browser automation</title><link href="/log/bumblebee/" rel="alternate" type="text/html" title="Bumblebee: browser automation" /><published>2025-04-02T00:00:00+08:00</published><updated>2025-04-02T00:00:00+08:00</updated><id>/log/bumblebee</id><author><name>W. D. Sadeep Madurange</name></author><summary type="html"><![CDATA[Bumblebee is a tool I built for one of my employers to automate the generation of web scraping scripts.]]></summary></entry><entry><title type="html">How to set up ATSAM3X8E microcontrollers for bare-metal programming in C</title><link href="/log/arduino-due/" rel="alternate" type="text/html" title="How to set up ATSAM3X8E microcontrollers for bare-metal programming in C" /><published>2024-09-16T00:00:00+08:00</published><updated>2024-09-16T00:00:00+08:00</updated><id>/log/arduino-due</id><author><name>W. D. Sadeep Madurange</name></author><summary type="html"><![CDATA[This article is a step-by-step guide for programming bare-metal ATSAM3X8E chips found on Arduino Due boards. It also includes notes on the chip’s memory layout relevant for writing linker scripts. The steps described in this article were tested on an OpenBSD workstation.]]></summary></entry><entry><title type="html">Etlas: e-paper dashboard</title><link href="/log/etlas/" rel="alternate" type="text/html" title="Etlas: e-paper dashboard" /><published>2024-09-05T00:00:00+08:00</published><updated>2024-09-05T00:00:00+08:00</updated><id>/log/etlas</id><author><name>W. D. Sadeep Madurange</name></author><summary type="html"><![CDATA[Etlas is a news, stock market, and weather tracker powered by an ESP32 NodeMCU D1, featuring a 7.5-inch Waveshare e-paper display and a DHT22 sensor module.]]></summary></entry><entry><title type="html">Experimental e-reader</title><link href="/log/e-reader/" rel="alternate" type="text/html" title="Experimental e-reader" /><published>2023-10-24T00:00:00+08:00</published><updated>2023-10-24T00:00:00+08:00</updated><id>/log/e-reader</id><author><name>W. D. Sadeep Madurange</name></author><summary type="html"><![CDATA[This project features an experimental e-reader powered by an ESP-WROOM-32 development board and a 7.5-inch Waveshare e-paper display built with the intention of learning about e-paper displays.]]></summary></entry><entry><title type="html">Recreating the Matrix rain with ANSI escape sequences</title><link href="/log/matrix-digital-rain/" rel="alternate" type="text/html" title="Recreating the Matrix rain with ANSI escape sequences" /><published>2022-08-22T00:00:00+08:00</published><updated>2022-08-22T00:00:00+08:00</updated><id>/log/matrix-digital-rain</id><author><name>W. D. Sadeep Madurange</name></author><summary type="html"><![CDATA[Over the weekend, I came across Domsson’s Fakesteak: a beautifully lean rendition of the Matrix rain in raw C using ANSI escape sequences—zero dependencies, not even ncurses.]]></summary></entry></feed>
-\ No newline at end of file
+<?xml version="1.0" encoding="utf-8"?><feed xmlns="http://www.w3.org/2005/Atom" ><generator uri="https://jekyllrb.com/" version="4.4.1">Jekyll</generator><link href="/feed.xml" rel="self" type="application/atom+xml" /><link href="/" rel="alternate" type="text/html" /><updated>2025-12-21T08:09:20+08:00</updated><id>/feed.xml</id><title type="html">ASCIIMX | Log</title><author><name>W. D. Sadeep Madurange</name></author><entry><title type="html">How to manage Suckless software installations</title><link href="/log/suckless-software/" rel="alternate" type="text/html" title="How to manage Suckless software installations" /><published>2025-11-30T00:00:00+08:00</published><updated>2025-11-30T00:00:00+08:00</updated><id>/log/suckless-software</id><author><name>W. D. Sadeep Madurange</name></author><summary type="html"><![CDATA[Since suckless software requires users to modify the source code and recompile to customize, I need a way to maintain patches over the long term while retaining the ability to upgrade the software as new versions are released.]]></summary></entry><entry><title type="html">Fingerprint door lock</title><link href="/log/fpm-door-lock/" rel="alternate" type="text/html" title="Fingerprint door lock" /><published>2025-08-18T00:00:00+08:00</published><updated>2025-08-18T00:00:00+08:00</updated><id>/log/fpm-door-lock</id><author><name>W. D. Sadeep Madurange</name></author><summary type="html"><![CDATA[This project features a fingerprint door lock powered by an ATmega328P microcontroller.]]></summary></entry><entry><title type="html">On the use of MOSFETs as electronic switches</title><link href="/log/mosfet-switches/" rel="alternate" type="text/html" title="On the use of MOSFETs as electronic switches" /><published>2025-06-22T00:00:00+08:00</published><updated>2025-06-22T00:00:00+08:00</updated><id>/log/mosfet-switches</id><author><name>W. D. Sadeep Madurange</name></author><summary type="html"><![CDATA[Recently, I needed a low-power circuit for one of my battery-operated projects. Much of the system’s power savings depended on its ability to electronically switch off components, such as servos, that draw high levels of quiescent currents. My search for a solution led me to MOSFETs, transistors capable of controlling circuits operating at voltages far above their own.]]></summary></entry><entry><title type="html">How to configure ATmega328P microcontrollers to run at 3.3V and 5V</title><link href="/log/arduino-uno/" rel="alternate" type="text/html" title="How to configure ATmega328P microcontrollers to run at 3.3V and 5V" /><published>2025-06-10T00:00:00+08:00</published><updated>2025-06-10T00:00:00+08:00</updated><id>/log/arduino-uno</id><author><name>W. D. Sadeep Madurange</name></author><summary type="html"><![CDATA[This is a quick reference for wiring up ATmega328P ICs to run at 5V and 3.3V. While the 5V configuration is common, the 3.3V configuration can be useful in low-power applications and when interfacing with parts that themselves run at 3.3V. In this guide, the 5V setup is configured with a 16MHz crystal oscillator, while the 3.3V configuration makes use of an 8MHz crystal oscillator.]]></summary></entry><entry><title type="html">My first PCB</title><link href="/log/my-first-pcb/" rel="alternate" type="text/html" title="My first PCB" /><published>2025-04-26T00:00:00+08:00</published><updated>2025-04-26T00:00:00+08:00</updated><id>/log/my-first-pcb</id><author><name>W. D. Sadeep Madurange</name></author><summary type="html"><![CDATA[In 2023, I started tinkering with DIY electronics as a hobby. Until now, I’ve been using development boards like the Arduino Uno and ESP-32-WROOM so that I can focus on the software. Recently, I decided to step outside of my comfort zone and design a PCB from scratch for a door lock I’m working on.]]></summary></entry><entry><title type="html">Bumblebee: browser automation</title><link href="/log/bumblebee/" rel="alternate" type="text/html" title="Bumblebee: browser automation" /><published>2025-04-02T00:00:00+08:00</published><updated>2025-04-02T00:00:00+08:00</updated><id>/log/bumblebee</id><author><name>W. D. Sadeep Madurange</name></author><summary type="html"><![CDATA[Bumblebee is a tool I built for one of my employers to automate the generation of web scraping scripts.]]></summary></entry><entry><title type="html">How to set up ATSAM3X8E microcontrollers for bare-metal programming in C</title><link href="/log/arduino-due/" rel="alternate" type="text/html" title="How to set up ATSAM3X8E microcontrollers for bare-metal programming in C" /><published>2024-09-16T00:00:00+08:00</published><updated>2024-09-16T00:00:00+08:00</updated><id>/log/arduino-due</id><author><name>W. D. Sadeep Madurange</name></author><summary type="html"><![CDATA[This article is a step-by-step guide for programming bare-metal ATSAM3X8E chips found on Arduino Due boards. It also includes notes on the chip’s memory layout relevant for writing linker scripts. The steps described in this article were tested on an OpenBSD workstation.]]></summary></entry><entry><title type="html">Etlas: e-paper dashboard</title><link href="/log/etlas/" rel="alternate" type="text/html" title="Etlas: e-paper dashboard" /><published>2024-09-05T00:00:00+08:00</published><updated>2024-09-05T00:00:00+08:00</updated><id>/log/etlas</id><author><name>W. D. Sadeep Madurange</name></author><summary type="html"><![CDATA[Etlas is a news, stock market, and weather tracker powered by an ESP32 NodeMCU D1, featuring a 7.5-inch Waveshare e-paper display and a DHT22 sensor module.]]></summary></entry><entry><title type="html">Experimental e-reader</title><link href="/log/e-reader/" rel="alternate" type="text/html" title="Experimental e-reader" /><published>2023-10-24T00:00:00+08:00</published><updated>2023-10-24T00:00:00+08:00</updated><id>/log/e-reader</id><author><name>W. D. Sadeep Madurange</name></author><summary type="html"><![CDATA[This project features an experimental e-reader powered by an ESP-WROOM-32 development board and a 7.5-inch Waveshare e-paper display built with the intention of learning about e-paper displays.]]></summary></entry><entry><title type="html">Recreating the Matrix rain with ANSI escape sequences</title><link href="/log/matrix-digital-rain/" rel="alternate" type="text/html" title="Recreating the Matrix rain with ANSI escape sequences" /><published>2022-08-22T00:00:00+08:00</published><updated>2022-08-22T00:00:00+08:00</updated><id>/log/matrix-digital-rain</id><author><name>W. D. Sadeep Madurange</name></author><summary type="html"><![CDATA[Over the weekend, I came across Domsson’s Fakesteak: a beautifully lean rendition of the Matrix rain in raw C using ANSI escape sequences—zero dependencies, not even ncurses.]]></summary></entry></feed>
+\ No newline at end of file
diff --git a/_site/log/matrix-digital-rain/index.html b/_site/log/matrix-digital-rain/index.html
index ac4a536..cf04bde 100644
--- a/_site/log/matrix-digital-rain/index.html
+++ b/_site/log/matrix-digital-rain/index.html
@@ -48,13 +48,12 @@
 Matrix rain in raw C using ANSI escape sequences—zero dependencies, not even
 ncurses.</p>
 
-<p>The project’s README noted that it didn’t support Japanese characters and that
-it used 8-bit color mode. The latter meant that the ghosting effect has to rely
-on different foreground colors rather than shades of the same color.</p>
-
-<p>As a tip of the hat to Domsson’s impressive work, I decided to add Unicode and
-24-bit truecolor support to it, aiming to faithfully recreate the original
-Matrix from the first movie during Neo and Cypher’s conversation:</p>
+<p>To keep things simple, Fakesteak didn’t support Japanese characters and that it
+used 8-bit color mode. The latter meant that the ghosting effect has to rely on
+different foreground colors rather than shades of the same color. As a tip of
+the hat to Domsson’s impressive work, I decided to add Unicode and 24-bit
+truecolor support to it, aiming to faithfully recreate the original Matrix from
+the first movie during Neo and Cypher’s conversation:</p>
 
 <video style="max-width:100%;" controls="" poster="poster.png">
   <source src="matrix.mp4" type="video/mp4" />
@@ -63,8 +62,8 @@ Matrix from the first movie during Neo and Cypher’s conversation:</p>
 <p>Adding Unicode support via <code class="language-plaintext highlighter-rouge">wchar_t</code> and <code class="language-plaintext highlighter-rouge">wprintf()</code> was easy enough.
 Implementing the ghosting effect with truecolor support, however, turned out
 harder than expected. To achieve the ghosting effect, I treated phosphor decay
-as a multiplier, allowing me to emulate a dim afterglow by gradually
-transitioning each raindrop’s RGB values towards the background color:</p>
+as a multiplier, which allowed me to emulate the dim afterglow by gradually
+transitioning each raindrop’s color towards the background color:</p>
 
 <div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>static void mat_shade(matrix *mat, size_t row, size_t col) 
 {
@@ -81,11 +80,13 @@ made. Instead of using a dedicated buffer, I should have bit-packed the
 phosphor decay into the RGB data buffer to save memory. I’m not entirely
 satisfied with the Unicode support as it’s restricted to contiguous code
 points. The glitch effect, which I implemented with characters unexpectedly
-changing, really should flash white as well.</p>
+changing, would have been closer to the original if flashed white as well.</p>
 
-<p>Nonetheless, the rain closely resembles the original, is highly customizable,
-and is gentle on the CPU. Not too bad for a weekend project. I tested the
-program with xterm and urxvt terminal emulators on OpenBSD and Arch Linux
+<p>Nonetheless, the rain resembles the original with high visual fidelity. It’s
+highly customizable and gentle on the CPU. On my 14” ThinkPad T490, which has a
+resolution of 1920x1080 and 4GHz CPU, it uses 2-3% of the CPU with occasional
+jumps of up to about 8%. Not too bad for a weekend project. The program has
+been tested with xterm and urxvt terminal emulators on OpenBSD and Arch Linux
 systems. Someone has managed to get it moving on a Raspberry Pi as well.</p>
 
 <p>Lastly, to compile and run:</p>
diff --git a/_site/posts.xml b/_site/posts.xml
index a20233d..d5fea09 100644
--- a/_site/posts.xml
+++ b/_site/posts.xml
@@ -1 +1 @@
-<?xml version="1.0" encoding="utf-8"?><feed xmlns="http://www.w3.org/2005/Atom" ><generator uri="https://jekyllrb.com/" version="4.4.1">Jekyll</generator><link href="/posts.xml" rel="self" type="application/atom+xml" /><link href="/" rel="alternate" type="text/html" /><updated>2025-12-21T01:20:43+08:00</updated><id>/posts.xml</id><title type="html">ASCIIMX</title><author><name>W. D. Sadeep Madurange</name></author></feed>
-\ No newline at end of file
+<?xml version="1.0" encoding="utf-8"?><feed xmlns="http://www.w3.org/2005/Atom" ><generator uri="https://jekyllrb.com/" version="4.4.1">Jekyll</generator><link href="/posts.xml" rel="self" type="application/atom+xml" /><link href="/" rel="alternate" type="text/html" /><updated>2025-12-21T08:09:20+08:00</updated><id>/posts.xml</id><title type="html">ASCIIMX</title><author><name>W. D. Sadeep Madurange</name></author></feed>
+\ No newline at end of file