diff options
28 files changed, 14 insertions, 19 deletions
diff --git a/blog/index.html b/blog/index.html index c48040c..28bb01f 100644 --- a/blog/index.html +++ b/blog/index.html @@ -186,17 +186,11 @@ pulse a few tens of milliseconds long that is enough to actuate the solenoid.</p <div class="document"> -<p>After the <a href="#system-message-1"><span class="problematic" id="problematic-1">`multichannel LED driver`_</span></a> was completed, I was just getting used to controlling LEDs at 14-bit resolution. I liked the board we designed in this project, but at 32 channels it was a bit large for most use cases. Sometimes I just want to pop a piece of LED tape or two somewhere, but I don't need a full 32 channels of control. I ended up thinking that a smaller version of the 32-channel driver that didn't require a separate control computer would be handy. So I sat down and designed a variant of the design with only 8 channels instead of 32 and an on-board <a href="#system-message-2"><span class="problematic" id="problematic-2">ESP8266_</span></a> module instead of the <a href="#system-message-3"><span class="problematic" id="problematic-3">RS485_</span></a> transceiver for WiFi connectivity.</p> +<p>After the multichannel LED driver was completed, I was just getting used to controlling LEDs at 14-bit resolution. I liked the board we designed in this project, but at 32 channels it was a bit large for most use cases. Sometimes I just want to pop a piece of LED tape or two somewhere, but I don't need a full 32 channels of control. I ended up thinking that a smaller version of the 32-channel driver that didn't require a separate control computer would be handy. So I sat down and designed a variant of the design with only 8 channels instead of 32 and an on-board ESP8266 module instead of the <a href="#system-message-1"><span class="problematic" id="problematic-1">RS485_</span></a> transceiver for WiFi connectivity.</p> <div class="system-messages section"> <h2>Docutils System Messages</h2> <div class="system-message" id="system-message-1"> <p class="system-message-title">System Message: ERROR/3 (<tt class="docutils"><stdin></tt>, line 1); <em><a href="#problematic-1">backlink</a></em></p> -Unknown target name: "multichannel led driver".</div> -<div class="system-message" id="system-message-2"> -<p class="system-message-title">System Message: ERROR/3 (<tt class="docutils"><stdin></tt>, line 1); <em><a href="#problematic-2">backlink</a></em></p> -Unknown target name: "esp8266".</div> -<div class="system-message" id="system-message-3"> -<p class="system-message-title">System Message: ERROR/3 (<tt class="docutils"><stdin></tt>, line 1); <em><a href="#problematic-3">backlink</a></em></p> Unknown target name: "rs485".</div> </div> </div> @@ -210,13 +204,14 @@ Unknown target name: "rs485".</div> <div class="document"> -<div class="section" id="preface"> -<h2>Preface</h2> -<p>Recently, I have been working on a <a class="reference external" href="http://jaseg.de/blog/wifi-led-driver/">small driver</a> for ambient lighting using 12V LED strips like you can get -inexpensively from China. I wanted to be able to just throw one of these somewhere, stick down some LED tape, hook it up -to a small transformer and be able to control it through Wifi. When I was writing the firmware, I noticed that when -fading between different colors, the colors look <em>all wrong</em>! This observation led me down a rabbit hole of color -perception and LED peculiarities.</p></div> +<p>Recently, I have been working on a <a href="#system-message-1"><span class="problematic" id="problematic-1">`small driver`_</span></a> for ambient lighting using 12V LED strips like you can get inexpensively from China. I wanted to be able to just throw one of these somewhere, stick down some LED tape, hook it up to a small transformer and be able to control it through Wifi. When I was writing the firmware, I noticed that when fading between different colors, the colors look <em>all wrong</em>! This observation led me down a rabbit hole of color perception and LED peculiarities.</p> +<div class="system-messages section"> +<h2>Docutils System Messages</h2> +<div class="system-message" id="system-message-1"> +<p class="system-message-title">System Message: ERROR/3 (<tt class="docutils"><stdin></tt>, line 1); <em><a href="#problematic-1">backlink</a></em></p> +Unknown target name: "small driver".</div> +</div> +</div> <a href="http://jaseg.de/blog/led-characterization/">Read more</a> </div> </div> diff --git a/blog/index.xml b/blog/index.xml index 1e0239c..698930b 100644 --- a/blog/index.xml +++ b/blog/index.xml @@ -84,14 +84,14 @@ <link>http://jaseg.de/blog/wifi-led-driver/</link> <pubDate>Wed, 02 May 2018 11:31:03 +0200</pubDate> <guid>http://jaseg.de/blog/wifi-led-driver/</guid> - <description><div class="document">


<p>After the <a href="#system-message-1"><span class="problematic" id="problematic-1">`multichannel LED driver`_</span></a> was completed, I was just getting used to controlling LEDs at 14-bit resolution. I liked the board we designed in this project, but at 32 channels it was a bit large for most use cases. Sometimes I just want to pop a piece of LED tape or two somewhere, but I don't need a full 32 channels of control. I ended up thinking that a smaller version of the 32-channel driver that didn't require a separate control computer would be handy. So I sat down and designed a variant of the design with only 8 channels instead of 32 and an on-board <a href="#system-message-2"><span class="problematic" id="problematic-2">ESP8266_</span></a> module instead of the <a href="#system-message-3"><span class="problematic" id="problematic-3">RS485_</span></a> transceiver for WiFi connectivity.</p>
<div class="system-messages section">
<h2>Docutils System Messages</h2>
<div class="system-message" id="system-message-1">
<p class="system-message-title">System Message: ERROR/3 (<tt class="docutils">&lt;stdin&gt;</tt>, line 1); <em><a href="#problematic-1">backlink</a></em></p>
Unknown target name: &quot;multichannel led driver&quot;.</div>
<div class="system-message" id="system-message-2">
<p class="system-message-title">System Message: ERROR/3 (<tt class="docutils">&lt;stdin&gt;</tt>, line 1); <em><a href="#problematic-2">backlink</a></em></p>
Unknown target name: &quot;esp8266&quot;.</div>
<div class="system-message" id="system-message-3">
<p class="system-message-title">System Message: ERROR/3 (<tt class="docutils">&lt;stdin&gt;</tt>, line 1); <em><a href="#problematic-3">backlink</a></em></p>
Unknown target name: &quot;rs485&quot;.</div>
</div>
</div></description> + <description><div class="document">


<p>After the multichannel LED driver was completed, I was just getting used to controlling LEDs at 14-bit resolution. I liked the board we designed in this project, but at 32 channels it was a bit large for most use cases. Sometimes I just want to pop a piece of LED tape or two somewhere, but I don't need a full 32 channels of control. I ended up thinking that a smaller version of the 32-channel driver that didn't require a separate control computer would be handy. So I sat down and designed a variant of the design with only 8 channels instead of 32 and an on-board ESP8266 module instead of the <a href="#system-message-1"><span class="problematic" id="problematic-1">RS485_</span></a> transceiver for WiFi connectivity.</p>
<div class="system-messages section">
<h2>Docutils System Messages</h2>
<div class="system-message" id="system-message-1">
<p class="system-message-title">System Message: ERROR/3 (<tt class="docutils">&lt;stdin&gt;</tt>, line 1); <em><a href="#problematic-1">backlink</a></em></p>
Unknown target name: &quot;rs485&quot;.</div>
</div>
</div></description> </item> <item> <title>LED Characterization</title> <link>http://jaseg.de/blog/led-characterization/</link> <pubDate>Wed, 02 May 2018 11:18:38 +0200</pubDate> <guid>http://jaseg.de/blog/led-characterization/</guid> - <description><div class="document">


<div class="section" id="preface">
<h2>Preface</h2>
<p>Recently, I have been working on a <a class="reference external" href="http://jaseg.de/blog/wifi-led-driver/">small driver</a> for ambient lighting using 12V LED strips like you can get
inexpensively from China. I wanted to be able to just throw one of these somewhere, stick down some LED tape, hook it up
to a small transformer and be able to control it through Wifi. When I was writing the firmware, I noticed that when
fading between different colors, the colors look <em>all wrong</em>! This observation led me down a rabbit hole of color
perception and LED peculiarities.</p></div></description> + <description><div class="document">


<p>Recently, I have been working on a <a href="#system-message-1"><span class="problematic" id="problematic-1">`small driver`_</span></a> for ambient lighting using 12V LED strips like you can get inexpensively from China. I wanted to be able to just throw one of these somewhere, stick down some LED tape, hook it up to a small transformer and be able to control it through Wifi. When I was writing the firmware, I noticed that when fading between different colors, the colors look <em>all wrong</em>! This observation led me down a rabbit hole of color perception and LED peculiarities.</p>
<div class="system-messages section">
<h2>Docutils System Messages</h2>
<div class="system-message" id="system-message-1">
<p class="system-message-title">System Message: ERROR/3 (<tt class="docutils">&lt;stdin&gt;</tt>, line 1); <em><a href="#problematic-1">backlink</a></em></p>
Unknown target name: &quot;small driver&quot;.</div>
</div>
</div></description> </item> </channel> </rss> @@ -91,14 +91,14 @@ <link>http://jaseg.de/blog/wifi-led-driver/</link> <pubDate>Wed, 02 May 2018 11:31:03 +0200</pubDate> <guid>http://jaseg.de/blog/wifi-led-driver/</guid> - <description><div class="document">


<p>After the <a href="#system-message-1"><span class="problematic" id="problematic-1">`multichannel LED driver`_</span></a> was completed, I was just getting used to controlling LEDs at 14-bit resolution. I liked the board we designed in this project, but at 32 channels it was a bit large for most use cases. Sometimes I just want to pop a piece of LED tape or two somewhere, but I don't need a full 32 channels of control. I ended up thinking that a smaller version of the 32-channel driver that didn't require a separate control computer would be handy. So I sat down and designed a variant of the design with only 8 channels instead of 32 and an on-board <a href="#system-message-2"><span class="problematic" id="problematic-2">ESP8266_</span></a> module instead of the <a href="#system-message-3"><span class="problematic" id="problematic-3">RS485_</span></a> transceiver for WiFi connectivity.</p>
<div class="system-messages section">
<h2>Docutils System Messages</h2>
<div class="system-message" id="system-message-1">
<p class="system-message-title">System Message: ERROR/3 (<tt class="docutils">&lt;stdin&gt;</tt>, line 1); <em><a href="#problematic-1">backlink</a></em></p>
Unknown target name: &quot;multichannel led driver&quot;.</div>
<div class="system-message" id="system-message-2">
<p class="system-message-title">System Message: ERROR/3 (<tt class="docutils">&lt;stdin&gt;</tt>, line 1); <em><a href="#problematic-2">backlink</a></em></p>
Unknown target name: &quot;esp8266&quot;.</div>
<div class="system-message" id="system-message-3">
<p class="system-message-title">System Message: ERROR/3 (<tt class="docutils">&lt;stdin&gt;</tt>, line 1); <em><a href="#problematic-3">backlink</a></em></p>
Unknown target name: &quot;rs485&quot;.</div>
</div>
</div></description> + <description><div class="document">


<p>After the multichannel LED driver was completed, I was just getting used to controlling LEDs at 14-bit resolution. I liked the board we designed in this project, but at 32 channels it was a bit large for most use cases. Sometimes I just want to pop a piece of LED tape or two somewhere, but I don't need a full 32 channels of control. I ended up thinking that a smaller version of the 32-channel driver that didn't require a separate control computer would be handy. So I sat down and designed a variant of the design with only 8 channels instead of 32 and an on-board ESP8266 module instead of the <a href="#system-message-1"><span class="problematic" id="problematic-1">RS485_</span></a> transceiver for WiFi connectivity.</p>
<div class="system-messages section">
<h2>Docutils System Messages</h2>
<div class="system-message" id="system-message-1">
<p class="system-message-title">System Message: ERROR/3 (<tt class="docutils">&lt;stdin&gt;</tt>, line 1); <em><a href="#problematic-1">backlink</a></em></p>
Unknown target name: &quot;rs485&quot;.</div>
</div>
</div></description> </item> <item> <title>LED Characterization</title> <link>http://jaseg.de/blog/led-characterization/</link> <pubDate>Wed, 02 May 2018 11:18:38 +0200</pubDate> <guid>http://jaseg.de/blog/led-characterization/</guid> - <description><div class="document">


<div class="section" id="preface">
<h2>Preface</h2>
<p>Recently, I have been working on a <a class="reference external" href="http://jaseg.de/blog/wifi-led-driver/">small driver</a> for ambient lighting using 12V LED strips like you can get
inexpensively from China. I wanted to be able to just throw one of these somewhere, stick down some LED tape, hook it up
to a small transformer and be able to control it through Wifi. When I was writing the firmware, I noticed that when
fading between different colors, the colors look <em>all wrong</em>! This observation led me down a rabbit hole of color
perception and LED peculiarities.</p></div></description> + <description><div class="document">


<p>Recently, I have been working on a <a href="#system-message-1"><span class="problematic" id="problematic-1">`small driver`_</span></a> for ambient lighting using 12V LED strips like you can get inexpensively from China. I wanted to be able to just throw one of these somewhere, stick down some LED tape, hook it up to a small transformer and be able to control it through Wifi. When I was writing the firmware, I noticed that when fading between different colors, the colors look <em>all wrong</em>! This observation led me down a rabbit hole of color perception and LED peculiarities.</p>
<div class="system-messages section">
<h2>Docutils System Messages</h2>
<div class="system-message" id="system-message-1">
<p class="system-message-title">System Message: ERROR/3 (<tt class="docutils">&lt;stdin&gt;</tt>, line 1); <em><a href="#problematic-1">backlink</a></em></p>
Unknown target name: &quot;small driver&quot;.</div>
</div>
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\ No newline at end of file +{"version":"1.0.4","languages":{"unknown":{"hash":"unknown_139dc27f5512718","wasm":null,"page_count":21}}}
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