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authorTrygve Laugstøl <trygvis@inamo.no>2018-04-27 01:46:46 +0200
committerTrygve Laugstøl <trygvis@inamo.no>2018-04-27 01:46:46 +0200
commit7fe4e05705b4df82e8d710e432cb8f5fb79222bf (patch)
tree1907b081a3424a7c51db4dc5c327005d50838aa8 /slides
parentc0d3e968f8ec64a6d43591b87d57bb5112764aa0 (diff)
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Diffstat (limited to 'slides')
-rw-r--r--slides/images/ip-encapsulation.pgf25
-rw-r--r--slides/images/tcpip.pgf12
-rw-r--r--slides/toc.md29
-rw-r--r--slides/what-is-iot-reveal.html241
-rw-r--r--slides/what-is-iot-slides.pdfbin311046 -> 311586 bytes
-rw-r--r--slides/what-is-iot-slides.tex645
-rw-r--r--slides/what-is-iot-text.pdfbin315666 -> 321798 bytes
-rw-r--r--slides/what-is-iot.md343
8 files changed, 656 insertions, 639 deletions
diff --git a/slides/images/ip-encapsulation.pgf b/slides/images/ip-encapsulation.pgf
new file mode 100644
index 0000000..34ba423
--- /dev/null
+++ b/slides/images/ip-encapsulation.pgf
@@ -0,0 +1,25 @@
+\begin{tikzpicture}[
+mybox/.style={
+ draw,
+ rectangle,
+ minimum height=1 cm,
+ anchor=west,
+ align=center,
+ font=\bfseries}
+]
+
+%\draw (0,0) rectangle (3cm, 1cm) {wat};
+
+\node at (0 cm, 0 cm) [mybox, minimum width=2cm, text width=1.7cm] {Frame header};
+\node at (2 cm, 0 cm) [mybox, minimum width=6cm] {Frame data};
+\node at (8 cm, 0 cm) [mybox, minimum width=2cm, text width=1.7cm] {Frame footer};
+
+\node at (2 cm, 1.1 cm) [mybox, minimum width=2cm] {IP header};
+\node at (4 cm, 1.1 cm) [mybox, minimum width=4cm] {IP Data};
+
+\node at (4 cm, 2.2 cm) [mybox, minimum width=2cm, text width=1.7 cm] {UDP header};
+\node at (6 cm, 2.2 cm) [mybox, minimum width=2cm, text width=1.7 cm] {UDP Data};
+
+\node at (6 cm, 3.3 cm) [mybox, minimum width=2cm, text width=1.7 cm] {Data};
+
+\end{tikzpicture}
diff --git a/slides/images/tcpip.pgf b/slides/images/tcpip.pgf
new file mode 100644
index 0000000..def5a31
--- /dev/null
+++ b/slides/images/tcpip.pgf
@@ -0,0 +1,12 @@
+\begin{tikzpicture}[
+mybox/.style={draw, rectangle, minimum width=4cm, minimum height=1 cm,font=\bfseries}
+]
+
+%\draw (0,0) rectangle (3cm, 1cm) {wat};
+
+\node at (0, -0) [mybox] {Application};
+\node at (0, -1) [mybox] {Transport};
+\node at (0, -2) [mybox] {Internet};
+\node at (0, -3)[mybox] {Network interface};
+
+\end{tikzpicture}
diff --git a/slides/toc.md b/slides/toc.md
index 76e65a6..7b7e857 100644
--- a/slides/toc.md
+++ b/slides/toc.md
@@ -1,3 +1,14 @@
+* NodeMCU
+ * NodeMCU hardware
+ * NodeMCU hardware
+ * ESP8266 software layers
+ * ESP8266 + Arduino
+ * Arduino IDE
+ * Arduino code structure
+ * Arduino file structure
+ * Generic Arduino APIs
+ * ESP Arduino APIs
+ * ESP Arduino APIs
* What is IoT
* What is IoT
* IoT is just a concept
@@ -23,34 +34,24 @@
* Details: IP
* Details: IP
* Details: UDP
-* Lecture: ESP8266
- * NodeMCU hardware
- * NodeMCU hardware
- * ESP8266 software layers
- * ESP8266 + Arduino
- * Arduino IDE
- * Arduino code structure
- * Arduino file structure
- * Generic Arduino APIs
- * ESP Arduino APIs
- * ESP Arduino APIs
* Lecture: MQTT
* MQTT
+ * Device and application architecture with MQTT
* MQTT - Implementations
* MQTT Cloud Connectors
* MQTT - The protocol
* MQTT - The protocol - MQTT Packet
- * MQTT - The protocol - Keep alive
+ * MQTT Connect
* MQTT - The protocol - MQTT Topic
* MQTT - The protocol - Retained message
* MQTT - The protocol - Will message
- * MQTT - The protocol - Client id
- * Device and application architecture with MQTT
* MQTT Topic
* MQTT on Arduino
* MQTT on Arduino
* Assignment
* MQTT topic architecture
+ * MQTT topic architecture
+ * MQTT topic architecture
* MQTT - Patterns
* Assignment
* Assignment
diff --git a/slides/what-is-iot-reveal.html b/slides/what-is-iot-reveal.html
index b63657a..2990fce 100644
--- a/slides/what-is-iot-reveal.html
+++ b/slides/what-is-iot-reveal.html
@@ -105,6 +105,107 @@ code span.wa { color: #60a0b0; font-weight: bold; font-style: italic; } /* Warni
<p class="author">Trygve Laugstøl &lt;trygvis@trygvis.io&gt;</p>
</section>
+<section><section id="nodemcu" class="title-slide slide level1"><h1>NodeMCU</h1></section><section id="nodemcu-hardware" class="slide level2">
+<h2>NodeMCU hardware</h2>
+<p><img data-src="images/NodeMCU-–-Board-de-desarrollo-con-módulo-ESP8266-WiFi-y-Lua-4.jpg" /></p>
+</section><section id="nodemcu-hardware-1" class="slide level2">
+<h2>NodeMCU hardware</h2>
+
+</section><section id="esp8266-software-layers" class="slide level2">
+<h2>ESP8266 software layers</h2>
+
+</section><section id="esp8266-arduino" class="slide level2">
+<h2>ESP8266 + Arduino</h2>
+<ul>
+<li>Standard Arduino IDE</li>
+<li>ESP8266 Arduino core
+<ul>
+<li>https://github.com/esp8266/Arduino</li>
+</ul></li>
+</ul>
+</section><section id="arduino-ide" class="slide level2">
+<h2>Arduino IDE</h2>
+<p><img data-src="images/arduino-ide.png" /></p>
+</section><section id="arduino-code-structure" class="slide level2">
+<h2>Arduino code structure</h2>
+<div class="sourceCode" id="cb1"><pre class="sourceCode .c++"><code class="sourceCode cpp"><a class="sourceLine" id="cb1-1" data-line-number="1"><span class="dt">void</span> setup() {</a>
+<a class="sourceLine" id="cb1-2" data-line-number="2"> <span class="co">// Called once</span></a>
+<a class="sourceLine" id="cb1-3" data-line-number="3">}</a>
+<a class="sourceLine" id="cb1-4" data-line-number="4"></a>
+<a class="sourceLine" id="cb1-5" data-line-number="5"><span class="dt">void</span> loop() {</a>
+<a class="sourceLine" id="cb1-6" data-line-number="6"> <span class="co">// Called repeatedly</span></a>
+<a class="sourceLine" id="cb1-7" data-line-number="7">}</a></code></pre></div>
+<aside class="notes">
+<p>MCU programming is often structured into:</p>
+<ul>
+<li>Configure
+<ul>
+<li>CPU</li>
+<li>GPIO ports</li>
+<li>MCU’s peripherals</li>
+<li>The rest of the board</li>
+<li>Configure application and callbacks.</li>
+</ul></li>
+<li>Sleep</li>
+</ul>
+<p>Arduino chooses to run the cpu at 100% instead of the sleep step..</p>
+</aside>
+</section><section id="arduino-file-structure" class="slide level2">
+<h2>Arduino file structure</h2>
+<pre><code>foo/
+ foo.ino
+ config.h</code></pre>
+<aside class="notes">
+<p><code>foo.ino</code> must always be in a <code>foo</code> directory.</p>
+<p>config.h is created by “new tab”.</p>
+</aside>
+</section><section id="generic-arduino-apis" class="slide level2">
+<h2>Generic Arduino APIs</h2>
+<div class="sourceCode" id="cb3"><pre class="sourceCode cpp"><code class="sourceCode cpp"><a class="sourceLine" id="cb3-1" data-line-number="1"><span class="co">// Pin: D0, D1, etc.</span></a>
+<a class="sourceLine" id="cb3-2" data-line-number="2"><span class="co">// Mode: OUTPUT, INPUT, INPUT_PULLUP</span></a>
+<a class="sourceLine" id="cb3-3" data-line-number="3"><span class="dt">void</span> pinMode(<span class="dt">uint8_t</span> pin, <span class="dt">uint8_t</span> mode);</a>
+<a class="sourceLine" id="cb3-4" data-line-number="4"></a>
+<a class="sourceLine" id="cb3-5" data-line-number="5"><span class="co">// State: HIGH, LOW, true/false, 1/0</span></a>
+<a class="sourceLine" id="cb3-6" data-line-number="6"><span class="dt">void</span> digitalWrite(<span class="dt">uint8_t</span> pin, <span class="dt">uint8_t</span> state);</a>
+<a class="sourceLine" id="cb3-7" data-line-number="7"><span class="dt">int</span> digitalRead(<span class="dt">uint8_t</span> pin);</a>
+<a class="sourceLine" id="cb3-8" data-line-number="8"></a>
+<a class="sourceLine" id="cb3-9" data-line-number="9"><span class="dt">unsigned</span> <span class="dt">long</span> now millis();</a>
+<a class="sourceLine" id="cb3-10" data-line-number="10"><span class="dt">unsigned</span> <span class="dt">long</span> now micros();</a></code></pre></div>
+</section><section id="esp-arduino-apis" class="slide level2">
+<h2>ESP Arduino APIs</h2>
+<div class="sourceCode" id="cb4"><pre class="sourceCode cpp"><code class="sourceCode cpp"><a class="sourceLine" id="cb4-1" data-line-number="1"><span class="kw">class</span> {</a>
+<a class="sourceLine" id="cb4-2" data-line-number="2"> <span class="dt">void</span> restart();</a>
+<a class="sourceLine" id="cb4-3" data-line-number="3"> <span class="dt">uint32_t</span> getFreeHeap();</a>
+<a class="sourceLine" id="cb4-4" data-line-number="4"> <span class="dt">uint32_t</span> getChipId();</a>
+<a class="sourceLine" id="cb4-5" data-line-number="5"></a>
+<a class="sourceLine" id="cb4-6" data-line-number="6"> ...</a>
+<a class="sourceLine" id="cb4-7" data-line-number="7">} ESP;</a>
+<a class="sourceLine" id="cb4-8" data-line-number="8"></a>
+<a class="sourceLine" id="cb4-9" data-line-number="9"><span class="co">// Usage</span></a>
+<a class="sourceLine" id="cb4-10" data-line-number="10">ESP.restart();</a></code></pre></div>
+</section><section id="esp-arduino-apis-1" class="slide level2">
+<h2>ESP Arduino APIs</h2>
+<div class="sourceCode" id="cb5"><pre class="sourceCode cpp"><code class="sourceCode cpp"><a class="sourceLine" id="cb5-1" data-line-number="1"><span class="kw">class</span> {</a>
+<a class="sourceLine" id="cb5-2" data-line-number="2"> String macAddress();</a>
+<a class="sourceLine" id="cb5-3" data-line-number="3"></a>
+<a class="sourceLine" id="cb5-4" data-line-number="4"> <span class="dt">wl_status_t</span> status();</a>
+<a class="sourceLine" id="cb5-5" data-line-number="5"> <span class="dt">int32_t</span> RSSI();</a>
+<a class="sourceLine" id="cb5-6" data-line-number="6"></a>
+<a class="sourceLine" id="cb5-7" data-line-number="7"> IPAddress localIP();</a>
+<a class="sourceLine" id="cb5-8" data-line-number="8"> IPAddress subnetMask();</a>
+<a class="sourceLine" id="cb5-9" data-line-number="9"> IPAddress gatewayIP();</a>
+<a class="sourceLine" id="cb5-10" data-line-number="10"> IPAddress dnsIP(<span class="dt">uint8_t</span> dns_no = <span class="dv">0</span>);</a>
+<a class="sourceLine" id="cb5-11" data-line-number="11"></a>
+<a class="sourceLine" id="cb5-12" data-line-number="12"> ...</a>
+<a class="sourceLine" id="cb5-13" data-line-number="13">} WiFi;</a>
+<a class="sourceLine" id="cb5-14" data-line-number="14"></a>
+<a class="sourceLine" id="cb5-15" data-line-number="15"><span class="co">// Usage:</span></a>
+<a class="sourceLine" id="cb5-16" data-line-number="16"></a>
+<a class="sourceLine" id="cb5-17" data-line-number="17">Serial.println(WiFi.localIP().toString());</a></code></pre></div>
+<aside class="notes">
+<p>http://arduino-esp8266.readthedocs.io/en/latest/libraries.html</p>
+</aside>
+</section></section>
<section><section id="what-is-iot" class="title-slide slide level1"><h1>What is IoT</h1></section><section id="what-is-iot-1" class="slide level2">
<h2>What is IoT</h2>
<ul>
@@ -455,108 +556,6 @@ code span.wa { color: #60a0b0; font-weight: bold; font-style: italic; } /* Warni
</section><section id="details-udp" class="slide level2">
<h2>Details: UDP</h2>
-<p>TODO: add payload to “ip packets”</p>
-</section></section>
-<section><section id="lecture-esp8266" class="title-slide slide level1"><h1>Lecture: ESP8266</h1></section><section id="nodemcu-hardware" class="slide level2">
-<h2>NodeMCU hardware</h2>
-<p><img data-src="images/NodeMCU-–-Board-de-desarrollo-con-módulo-ESP8266-WiFi-y-Lua-4.jpg" /></p>
-</section><section id="nodemcu-hardware-1" class="slide level2">
-<h2>NodeMCU hardware</h2>
-
-</section><section id="esp8266-software-layers" class="slide level2">
-<h2>ESP8266 software layers</h2>
-
-</section><section id="esp8266-arduino" class="slide level2">
-<h2>ESP8266 + Arduino</h2>
-<ul>
-<li>Standard Arduino IDE</li>
-<li>ESP8266 Arduino core
-<ul>
-<li>https://github.com/esp8266/Arduino</li>
-</ul></li>
-</ul>
-</section><section id="arduino-ide" class="slide level2">
-<h2>Arduino IDE</h2>
-<p><img data-src="images/arduino-ide.png" /></p>
-</section><section id="arduino-code-structure" class="slide level2">
-<h2>Arduino code structure</h2>
-<div class="sourceCode" id="cb1"><pre class="sourceCode .c++"><code class="sourceCode cpp"><a class="sourceLine" id="cb1-1" data-line-number="1"><span class="dt">void</span> setup() {</a>
-<a class="sourceLine" id="cb1-2" data-line-number="2"> <span class="co">// Called once</span></a>
-<a class="sourceLine" id="cb1-3" data-line-number="3">}</a>
-<a class="sourceLine" id="cb1-4" data-line-number="4"></a>
-<a class="sourceLine" id="cb1-5" data-line-number="5"><span class="dt">void</span> loop() {</a>
-<a class="sourceLine" id="cb1-6" data-line-number="6"> <span class="co">// Called repeatedly</span></a>
-<a class="sourceLine" id="cb1-7" data-line-number="7">}</a></code></pre></div>
-<aside class="notes">
-<p>MCU programming is often structured into:</p>
-<ul>
-<li>Configure
-<ul>
-<li>CPU</li>
-<li>GPIO ports</li>
-<li>MCU’s peripherals</li>
-<li>The rest of the board</li>
-<li>Configure application and callbacks.</li>
-</ul></li>
-<li>Sleep</li>
-</ul>
-<p>Arduino chooses to run the cpu at 100% instead of the sleep step..</p>
-</aside>
-</section><section id="arduino-file-structure" class="slide level2">
-<h2>Arduino file structure</h2>
-<pre><code>foo/
- foo.ino
- config.h</code></pre>
-<aside class="notes">
-<p><code>foo.ino</code> must always be in a <code>foo</code> directory.</p>
-<p>config.h is created by “new tab”.</p>
-</aside>
-</section><section id="generic-arduino-apis" class="slide level2">
-<h2>Generic Arduino APIs</h2>
-<div class="sourceCode" id="cb3"><pre class="sourceCode cpp"><code class="sourceCode cpp"><a class="sourceLine" id="cb3-1" data-line-number="1"><span class="co">// Pin: D0, D1, etc.</span></a>
-<a class="sourceLine" id="cb3-2" data-line-number="2"><span class="co">// Mode: OUTPUT, INPUT, INPUT_PULLUP</span></a>
-<a class="sourceLine" id="cb3-3" data-line-number="3"><span class="dt">void</span> pinMode(<span class="dt">uint8_t</span> pin, <span class="dt">uint8_t</span> mode);</a>
-<a class="sourceLine" id="cb3-4" data-line-number="4"></a>
-<a class="sourceLine" id="cb3-5" data-line-number="5"><span class="co">// State: HIGH, LOW, true/false, 1/0</span></a>
-<a class="sourceLine" id="cb3-6" data-line-number="6"><span class="dt">void</span> digitalWrite(<span class="dt">uint8_t</span> pin, <span class="dt">uint8_t</span> state);</a>
-<a class="sourceLine" id="cb3-7" data-line-number="7"><span class="dt">int</span> digitalRead(<span class="dt">uint8_t</span> pin);</a>
-<a class="sourceLine" id="cb3-8" data-line-number="8"></a>
-<a class="sourceLine" id="cb3-9" data-line-number="9"><span class="dt">unsigned</span> <span class="dt">long</span> now millis();</a>
-<a class="sourceLine" id="cb3-10" data-line-number="10"><span class="dt">unsigned</span> <span class="dt">long</span> now micros();</a></code></pre></div>
-</section><section id="esp-arduino-apis" class="slide level2">
-<h2>ESP Arduino APIs</h2>
-<div class="sourceCode" id="cb4"><pre class="sourceCode cpp"><code class="sourceCode cpp"><a class="sourceLine" id="cb4-1" data-line-number="1"><span class="kw">class</span> {</a>
-<a class="sourceLine" id="cb4-2" data-line-number="2"> <span class="dt">void</span> restart();</a>
-<a class="sourceLine" id="cb4-3" data-line-number="3"> <span class="dt">uint32_t</span> getFreeHeap();</a>
-<a class="sourceLine" id="cb4-4" data-line-number="4"> <span class="dt">uint32_t</span> getChipId();</a>
-<a class="sourceLine" id="cb4-5" data-line-number="5"></a>
-<a class="sourceLine" id="cb4-6" data-line-number="6"> ...</a>
-<a class="sourceLine" id="cb4-7" data-line-number="7">} ESP;</a>
-<a class="sourceLine" id="cb4-8" data-line-number="8"></a>
-<a class="sourceLine" id="cb4-9" data-line-number="9"><span class="co">// Usage</span></a>
-<a class="sourceLine" id="cb4-10" data-line-number="10">ESP.restart();</a></code></pre></div>
-</section><section id="esp-arduino-apis-1" class="slide level2">
-<h2>ESP Arduino APIs</h2>
-<div class="sourceCode" id="cb5"><pre class="sourceCode cpp"><code class="sourceCode cpp"><a class="sourceLine" id="cb5-1" data-line-number="1"><span class="kw">class</span> {</a>
-<a class="sourceLine" id="cb5-2" data-line-number="2"> String macAddress();</a>
-<a class="sourceLine" id="cb5-3" data-line-number="3"></a>
-<a class="sourceLine" id="cb5-4" data-line-number="4"> <span class="dt">wl_status_t</span> status();</a>
-<a class="sourceLine" id="cb5-5" data-line-number="5"> <span class="dt">int32_t</span> RSSI();</a>
-<a class="sourceLine" id="cb5-6" data-line-number="6"></a>
-<a class="sourceLine" id="cb5-7" data-line-number="7"> IPAddress localIP();</a>
-<a class="sourceLine" id="cb5-8" data-line-number="8"> IPAddress subnetMask();</a>
-<a class="sourceLine" id="cb5-9" data-line-number="9"> IPAddress gatewayIP();</a>
-<a class="sourceLine" id="cb5-10" data-line-number="10"> IPAddress dnsIP(<span class="dt">uint8_t</span> dns_no = <span class="dv">0</span>);</a>
-<a class="sourceLine" id="cb5-11" data-line-number="11"></a>
-<a class="sourceLine" id="cb5-12" data-line-number="12"> ...</a>
-<a class="sourceLine" id="cb5-13" data-line-number="13">} WiFi;</a>
-<a class="sourceLine" id="cb5-14" data-line-number="14"></a>
-<a class="sourceLine" id="cb5-15" data-line-number="15"><span class="co">// Usage:</span></a>
-<a class="sourceLine" id="cb5-16" data-line-number="16"></a>
-<a class="sourceLine" id="cb5-17" data-line-number="17">Serial.println(WiFi.localIP().toString());</a></code></pre></div>
-<aside class="notes">
-<p>http://arduino-esp8266.readthedocs.io/en/latest/libraries.html</p>
-</aside>
</section></section>
<section><section id="lecture-mqtt" class="title-slide slide level1"><h1>Lecture: MQTT</h1></section><section id="mqtt" class="slide level2">
<h2>MQTT</h2>
@@ -570,6 +569,9 @@ code span.wa { color: #60a0b0; font-weight: bold; font-style: italic; } /* Warni
<p>Has UDP-like semantics with “fire and forget” but on a higher level (the message always have to be delivered and ACKed by the broker, not it’s final recipient.</p>
<p>Version 3.1.1 er den som gjelder, V 3.1 er rar, de andre finnes ikke (før standardisering).</p>
</aside>
+</section><section id="device-and-application-architecture-with-mqtt" class="slide level2">
+<h2>Device and application architecture with MQTT</h2>
+
</section><section id="mqtt---implementations" class="slide level2">
<h2>MQTT - Implementations</h2>
<ul>
@@ -647,9 +649,25 @@ code span.wa { color: #60a0b0; font-weight: bold; font-style: italic; } /* Warni
<p>Only packet type + flags (1 byte) is required, everything else is optional.</p>
<p>The size field is variable length encoded, 0-127 bytes is 1 byte, 128-16383 use 2 bytes etc, up to 4 bytes for 256MB payload.</p>
</aside>
-</section><section id="mqtt---the-protocol---keep-alive" class="slide level2">
-<h2>MQTT - The protocol - Keep alive</h2>
-<p>TODO</p>
+</section><section id="mqtt-connect" class="slide level2">
+<h2>MQTT Connect</h2>
+<ul>
+<li><code>CONNECT</code>
+<ul>
+<li><code>clientId</code></li>
+<li><code>username</code></li>
+<li><code>password</code></li>
+<li><code>keepAlive</code></li>
+</ul></li>
+</ul>
+<!-- -->
+<ul>
+<li>Keep alive
+<ul>
+<li><code>PINGREQ</code></li>
+<li><code>PINGRESP</code></li>
+</ul></li>
+</ul>
</section><section id="mqtt---the-protocol---mqtt-topic" class="slide level2">
<h2>MQTT - The protocol - MQTT Topic</h2>
<ul>
@@ -713,12 +731,6 @@ code span.wa { color: #60a0b0; font-weight: bold; font-style: italic; } /* Warni
<li><code>0</code></li>
</ul></li>
</ol>
-</section><section id="mqtt---the-protocol---client-id" class="slide level2">
-<h2>MQTT - The protocol - Client id</h2>
-<p>TODO</p>
-</section><section id="device-and-application-architecture-with-mqtt" class="slide level2">
-<h2>Device and application architecture with MQTT</h2>
-
</section><section id="mqtt-topic" class="slide level2">
<h2>MQTT Topic</h2>
<p>The temperature sensor:</p>
@@ -806,9 +818,12 @@ code span.wa { color: #60a0b0; font-weight: bold; font-style: italic; } /* Warni
<li><code>myapp/$device-id/command</code></li>
</ul></li>
</ul>
-<aside class="notes">
+</section><section id="mqtt-topic-architecture-1" class="slide level2">
+<h2>MQTT topic architecture</h2>
+
+</section><section id="mqtt-topic-architecture-2" class="slide level2">
+<h2>MQTT topic architecture</h2>
-</aside>
</section><section id="mqtt---patterns" class="slide level2">
<h2>MQTT - Patterns</h2>
<ul>
diff --git a/slides/what-is-iot-slides.pdf b/slides/what-is-iot-slides.pdf
index 0787197..18256ff 100644
--- a/slides/what-is-iot-slides.pdf
+++ b/slides/what-is-iot-slides.pdf
Binary files differ
diff --git a/slides/what-is-iot-slides.tex b/slides/what-is-iot-slides.tex
index 0901294..6da20bb 100644
--- a/slides/what-is-iot-slides.tex
+++ b/slides/what-is-iot-slides.tex
@@ -1,3 +1,249 @@
+\hypertarget{nodemcu}{%
+\section{NodeMCU}\label{nodemcu}}
+
+\begin{frame}{NodeMCU hardware}
+\protect\hypertarget{nodemcu-hardware}{}
+
+\includegraphics{images/NodeMCU-–-Board-de-desarrollo-con-módulo-ESP8266-WiFi-y-Lua-4.jpg}
+
+\end{frame}
+
+\begin{frame}{NodeMCU hardware}
+\protect\hypertarget{nodemcu-hardware-1}{}
+
+\begin{center}
+\begin{tikzpicture}
+
+\path
+ (0, 0) node(flash)[draw, rectangle,
+ minimum height=1cm, minimum width=2cm] {Flash}
+
+ (0, 1.5) node(esp8266)[draw, rectangle,
+ minimum height=1cm, minimum width=2cm] {ESP8266}
+
+ (3.5, 1.5) node(cp201x)[draw, rectangle,
+ minimum height=0.75cm, minimum width=1cm]
+ {CP201x}
+
+ (5.5, 1.5) node(usb)[]
+ {USB}
+;
+
+\draw[-] (esp8266) -- node[node font=\footnotesize, right]{QSPI} (flash);
+\draw[-] (esp8266) -- node[node font=\footnotesize, above]{UART} (cp201x) -- (usb);
+
+\node[rectangle, draw, fit=(esp8266) (flash), inner sep=2 mm,
+ label={[name=esp12_label,anchor=south]ESP-12}]
+ (esp12){};
+
+\node[rectangle, draw, thick, fit=(esp12_label) (esp12) (cp201x), inner sep=3 mm,
+ label={[anchor=north]south:NodeMCU}]
+ (nodemcu){};
+
+\end{tikzpicture}
+
+\end{center}
+
+\end{frame}
+
+\begin{frame}{ESP8266 software layers}
+\protect\hypertarget{esp8266-software-layers}{}
+
+\begin{center}
+\begin{tikzpicture}
+
+\node (rect_hw) [rectangle, draw, anchor=south west,
+ minimum width=6 cm, minimum height=1 cm,
+ label={[anchor=south]center:ESP8266 Hardware}] at (0, 0) {};
+
+\draw[thick] (-0.5, 1.25) -- (6.5, 1.25) ;
+
+\node [rectangle, draw, anchor=south west,
+ minimum width=4 cm, minimum height=1 cm,
+ label={[anchor=south]center:ESP SDK}] at (0, 1.5) {};
+
+\node [rectangle, draw, anchor=south west,
+ minimum width=2 cm, minimum height=1 cm,
+ label={[align=center, text width=1cm]center:GCC libc}] at (4, 1.5) {};
+
+\node [rectangle, draw, anchor=south west,
+ minimum width=6 cm, minimum height=1 cm,
+ label={[anchor=south]center:ESP interface}] at (0, 2.5) {};
+
+\node [rectangle, draw, anchor=south west,
+ minimum width=2 cm, minimum height=1 cm,
+ label={[align=center, text width= 2cm]center:Generic Arduino}] at (0, 3.5) {};
+
+\node [rectangle, draw, anchor=south west,
+ minimum width=2 cm, minimum height=1 cm,
+ label={[align=center, text width= 2cm]center:Ethernet}] at (2, 3.5) {};
+
+\node [rectangle, draw, anchor=south west,
+ minimum width=2 cm, minimum height=1 cm,
+ label={[align=center, text width= 2cm]center:ESP APIs}] at (4, 3.5) {};
+
+\draw [decorate, decoration={brace,amplitude=5pt, raise=-4pt}] (-0.5,2.5) -- (-0.5,4.5) node [black,midway,rotate=90, above] {Arduino};
+
+
+\end{tikzpicture}
+
+\end{center}
+
+\end{frame}
+
+\begin{frame}{ESP8266 + Arduino}
+\protect\hypertarget{esp8266-arduino}{}
+
+\begin{itemize}
+\tightlist
+\item
+ Standard Arduino IDE
+\item
+ ESP8266 Arduino core
+
+ \begin{itemize}
+ \tightlist
+ \item
+ https://github.com/esp8266/Arduino
+ \end{itemize}
+\end{itemize}
+
+\end{frame}
+
+\begin{frame}{Arduino IDE}
+\protect\hypertarget{arduino-ide}{}
+
+\includegraphics{images/arduino-ide.png}
+
+\end{frame}
+
+\begin{frame}[fragile]{Arduino code structure}
+\protect\hypertarget{arduino-code-structure}{}
+
+\begin{Shaded}
+\begin{Highlighting}[]
+\DataTypeTok{void}\NormalTok{ setup() \{}
+ \CommentTok{// Called once}
+\NormalTok{\}}
+
+\DataTypeTok{void}\NormalTok{ loop() \{}
+ \CommentTok{// Called repeatedly}
+\NormalTok{\}}
+\end{Highlighting}
+\end{Shaded}
+
+\note{MCU programming is often structured into:
+
+\begin{itemize}
+\tightlist
+\item
+ Configure
+
+ \begin{itemize}
+ \tightlist
+ \item
+ CPU
+ \item
+ GPIO ports
+ \item
+ MCU’s peripherals
+ \item
+ The rest of the board
+ \item
+ Configure application and callbacks.
+ \end{itemize}
+\item
+ Sleep
+\end{itemize}
+
+Arduino chooses to run the cpu at 100\% instead of the sleep step..}
+
+\end{frame}
+
+\begin{frame}[fragile]{Arduino file structure}
+\protect\hypertarget{arduino-file-structure}{}
+
+\begin{verbatim}
+foo/
+ foo.ino
+ config.h
+\end{verbatim}
+
+\note{\texttt{foo.ino} must always be in a \texttt{foo} directory.
+
+config.h is created by “new tab”.}
+
+\end{frame}
+
+\begin{frame}[fragile]{Generic Arduino APIs}
+\protect\hypertarget{generic-arduino-apis}{}
+
+\begin{Shaded}
+\begin{Highlighting}[]
+\CommentTok{// Pin: D0, D1, etc.}
+\CommentTok{// Mode: OUTPUT, INPUT, INPUT_PULLUP}
+\DataTypeTok{void}\NormalTok{ pinMode(}\DataTypeTok{uint8_t}\NormalTok{ pin, }\DataTypeTok{uint8_t}\NormalTok{ mode);}
+
+\CommentTok{// State: HIGH, LOW, true/false, 1/0}
+\DataTypeTok{void}\NormalTok{ digitalWrite(}\DataTypeTok{uint8_t}\NormalTok{ pin, }\DataTypeTok{uint8_t}\NormalTok{ state);}
+\DataTypeTok{int}\NormalTok{ digitalRead(}\DataTypeTok{uint8_t}\NormalTok{ pin);}
+
+\DataTypeTok{unsigned} \DataTypeTok{long}\NormalTok{ now millis();}
+\DataTypeTok{unsigned} \DataTypeTok{long}\NormalTok{ now micros();}
+\end{Highlighting}
+\end{Shaded}
+
+\end{frame}
+
+\begin{frame}[fragile]{ESP Arduino APIs}
+\protect\hypertarget{esp-arduino-apis}{}
+
+\begin{Shaded}
+\begin{Highlighting}[]
+\KeywordTok{class}\NormalTok{ \{}
+ \DataTypeTok{void}\NormalTok{ restart();}
+ \DataTypeTok{uint32_t}\NormalTok{ getFreeHeap();}
+ \DataTypeTok{uint32_t}\NormalTok{ getChipId();}
+
+\NormalTok{ ...}
+\NormalTok{\} ESP;}
+
+\CommentTok{// Usage}
+\NormalTok{ESP.restart();}
+\end{Highlighting}
+\end{Shaded}
+
+\end{frame}
+
+\begin{frame}[fragile]{ESP Arduino APIs}
+\protect\hypertarget{esp-arduino-apis-1}{}
+
+\begin{Shaded}
+\begin{Highlighting}[]
+\KeywordTok{class}\NormalTok{ \{}
+\NormalTok{ String macAddress();}
+
+ \DataTypeTok{wl_status_t}\NormalTok{ status();}
+ \DataTypeTok{int32_t}\NormalTok{ RSSI();}
+
+\NormalTok{ IPAddress localIP();}
+\NormalTok{ IPAddress subnetMask();}
+\NormalTok{ IPAddress gatewayIP();}
+\NormalTok{ IPAddress dnsIP(}\DataTypeTok{uint8_t}\NormalTok{ dns_no = }\DecValTok{0}\NormalTok{);}
+
+\NormalTok{ ...}
+\NormalTok{\} WiFi;}
+
+\CommentTok{// Usage:}
+
+\NormalTok{Serial.println(WiFi.localIP().toString());}
+\end{Highlighting}
+\end{Shaded}
+
+\note{http://arduino-esp8266.readthedocs.io/en/latest/libraries.html}
+
+\end{frame}
+
\hypertarget{what-is-iot}{%
\section{What is IoT}\label{what-is-iot}}
@@ -289,52 +535,82 @@ TX\strut
\end{frame}
-\begin{frame}{OSI model}
-\protect\hypertarget{osi-model}{}
+\begin{frame}{TCP/IP Layers}
+\protect\hypertarget{tcpip-layers}{}
-\begin{enumerate}
-[1.]
-\tightlist
-\item
- Physical Layer
-\item
- Data Link Layer
-\item
- Network Layer
-\item
- Transport Layer
-\item
- Session Layer
-\item
- Presentation Layer
-\item
- Application Layer
-\end{enumerate}
+\begin{center}
+\begin{tikzpicture}[
+mybox/.style={draw, rectangle, minimum width=4cm, minimum height=1 cm,font=\bfseries}
+]
-\begin{itemize}
-\tightlist
-\item
- \href{https://en.wikipedia.org/wiki/OSI_model}{Wikipedia: OSI model}
-\item
- \href{https://en.wikipedia.org/wiki/OSI_model\#Examples}{Wikipedia:
- OSI model\#Examples}
-\end{itemize}
+%\draw (0,0) rectangle (3cm, 1cm) {wat};
-\note{Does not match the TCP/IP stack very closely.}
+\node at (0, -0) [mybox] {Application};
+\node at (0, -1) [mybox] {Transport};
+\node at (0, -2) [mybox] {Internet};
+\node at (0, -3)[mybox] {Network interface};
+
+\end{tikzpicture}
+
+\end{center}
\end{frame}
-\begin{frame}{Layer 1: Physical Layer}
-\protect\hypertarget{layer-1-physical-layer}{}
+\begin{frame}{Packet encapsulation}
+\protect\hypertarget{packet-encapsulation}{}
+
+\begin{center}
+\begin{tikzpicture}[
+mybox/.style={
+ draw,
+ rectangle,
+ minimum height=1 cm,
+ anchor=west,
+ align=center,
+ font=\bfseries}
+]
+
+%\draw (0,0) rectangle (3cm, 1cm) {wat};
+
+\node at (0 cm, 0 cm) [mybox, minimum width=2cm, text width=1.7cm] {Frame header};
+\node at (2 cm, 0 cm) [mybox, minimum width=6cm] {Frame data};
+\node at (8 cm, 0 cm) [mybox, minimum width=2cm, text width=1.7cm] {Frame footer};
+
+\node at (2 cm, 1.1 cm) [mybox, minimum width=2cm] {IP header};
+\node at (4 cm, 1.1 cm) [mybox, minimum width=4cm] {IP Data};
+
+\node at (4 cm, 2.2 cm) [mybox, minimum width=2cm, text width=1.7 cm] {UDP header};
+\node at (6 cm, 2.2 cm) [mybox, minimum width=2cm, text width=1.7 cm] {UDP Data};
+
+\node at (6 cm, 3.3 cm) [mybox, minimum width=2cm, text width=1.7 cm] {Data};
+
+\end{tikzpicture}
+
+\end{center}
+
+\end{frame}
+
+\begin{frame}{Network interface}
+\protect\hypertarget{network-interface}{}
\begin{itemize}
\tightlist
\item
- 10BASE5, 10BASE2
-\item
- 10BASE-T / 100BASE-TX / 1000BASE-TX
+ Ethernet
+
+ \begin{itemize}
+ \tightlist
+ \item
+ 10BASE5, 10BASE2, 10BASE-T / 100BASE-TX / 1000BASE-TX
+ \end{itemize}
\item
- 802.11a/b/g/n PHY
+ Wi-Fi
+
+ \begin{itemize}
+ \tightlist
+ \item
+ 802.11a/b/g/n
+ \end{itemize}
\item
RS-232
\end{itemize}
@@ -354,25 +630,8 @@ The signaling does not specify any max data rate, very high rates
\end{frame}
-\begin{frame}{Layer 2: Data Link Layer}
-\protect\hypertarget{layer-2-data-link-layer}{}
-
-\begin{itemize}
-\tightlist
-\item
- Ethernet
-\item
- WiFi
-\item
- Bluetooth
-\item
- Token Ring
-\end{itemize}
-
-\end{frame}
-
-\begin{frame}{Layer 3: Network Layer}
-\protect\hypertarget{layer-3-network-layer}{}
+\begin{frame}{Internet}
+\protect\hypertarget{internet}{}
\begin{itemize}
\tightlist
@@ -380,14 +639,12 @@ The signaling does not specify any max data rate, very high rates
IP
\item
ICMP
-\item
- IPX
\end{itemize}
\end{frame}
-\begin{frame}{Layer 4: Transport Layer}
-\protect\hypertarget{layer-4-transport-layer}{}
+\begin{frame}{Transport}
+\protect\hypertarget{transport}{}
\begin{itemize}
\tightlist
@@ -395,36 +652,14 @@ The signaling does not specify any max data rate, very high rates
TCP
\item
UDP
-\end{itemize}
-
-\end{frame}
-
-\begin{frame}{Layer 5: Session Layer}
-\protect\hypertarget{layer-5-session-layer}{}
-
-\begin{itemize}
-\tightlist
\item
- “sockets”
+ SCTP
\item
- NetBIOS
+ QUIC
\end{itemize}
\end{frame}
-\begin{frame}{Layer 6: Presentation Layer}
-\protect\hypertarget{layer-6-presentation-layer}{}
-
-\begin{itemize}
-\tightlist
-\item
- SSL
-\end{itemize}
-
-\note{This layer is not really much used in the IP stack}
-
-\end{frame}
-
\begin{frame}{Layer 7: Application Layer}
\protect\hypertarget{layer-7-application-layer}{}
@@ -541,252 +776,6 @@ every node/.style={font=\bfseries}
\end{frame}
-\hypertarget{lecture-esp8266}{%
-\section{Lecture: ESP8266}\label{lecture-esp8266}}
-
-\begin{frame}{NodeMCU hardware}
-\protect\hypertarget{nodemcu-hardware}{}
-
-\includegraphics{images/NodeMCU-–-Board-de-desarrollo-con-módulo-ESP8266-WiFi-y-Lua-4.jpg}
-
-\end{frame}
-
-\begin{frame}{NodeMCU hardware}
-\protect\hypertarget{nodemcu-hardware-1}{}
-
-\begin{center}
-\begin{tikzpicture}
-
-\path
- (0, 0) node(flash)[draw, rectangle,
- minimum height=1cm, minimum width=2cm] {Flash}
-
- (0, 1.5) node(esp8266)[draw, rectangle,
- minimum height=1cm, minimum width=2cm] {ESP8266}
-
- (3.5, 1.5) node(cp201x)[draw, rectangle,
- minimum height=0.75cm, minimum width=1cm]
- {CP201x}
-
- (5.5, 1.5) node(usb)[]
- {USB}
-;
-
-\draw[-] (esp8266) -- node[node font=\footnotesize, right]{QSPI} (flash);
-\draw[-] (esp8266) -- node[node font=\footnotesize, above]{UART} (cp201x) -- (usb);
-
-\node[rectangle, draw, fit=(esp8266) (flash), inner sep=2 mm,
- label={[name=esp12_label,anchor=south]ESP-12}]
- (esp12){};
-
-\node[rectangle, draw, thick, fit=(esp12_label) (esp12) (cp201x), inner sep=3 mm,
- label={[anchor=north]south:NodeMCU}]
- (nodemcu){};
-
-\end{tikzpicture}
-
-\end{center}
-
-\end{frame}
-
-\begin{frame}{ESP8266 software layers}
-\protect\hypertarget{esp8266-software-layers}{}
-
-\begin{center}
-\begin{tikzpicture}
-
-\node (rect_hw) [rectangle, draw, anchor=south west,
- minimum width=6 cm, minimum height=1 cm,
- label={[anchor=south]center:ESP8266 Hardware}] at (0, 0) {};
-
-\draw[thick] (-0.5, 1.25) -- (6.5, 1.25) ;
-
-\node [rectangle, draw, anchor=south west,
- minimum width=4 cm, minimum height=1 cm,
- label={[anchor=south]center:ESP SDK}] at (0, 1.5) {};
-
-\node [rectangle, draw, anchor=south west,
- minimum width=2 cm, minimum height=1 cm,
- label={[align=center, text width=1cm]center:GCC libc}] at (4, 1.5) {};
-
-\node [rectangle, draw, anchor=south west,
- minimum width=6 cm, minimum height=1 cm,
- label={[anchor=south]center:ESP interface}] at (0, 2.5) {};
-
-\node [rectangle, draw, anchor=south west,
- minimum width=2 cm, minimum height=1 cm,
- label={[align=center, text width= 2cm]center:Generic Arduino}] at (0, 3.5) {};
-
-\node [rectangle, draw, anchor=south west,
- minimum width=2 cm, minimum height=1 cm,
- label={[align=center, text width= 2cm]center:Ethernet}] at (2, 3.5) {};
-
-\node [rectangle, draw, anchor=south west,
- minimum width=2 cm, minimum height=1 cm,
- label={[align=center, text width= 2cm]center:ESP APIs}] at (4, 3.5) {};
-
-\draw [decorate, decoration={brace,amplitude=5pt, raise=-4pt}] (-0.5,2.5) -- (-0.5,4.5) node [black,midway,rotate=90, above] {Arduino};
-
-
-\end{tikzpicture}
-
-\end{center}
-
-\end{frame}
-
-\begin{frame}{ESP8266 + Arduino}
-\protect\hypertarget{esp8266-arduino}{}
-
-\begin{itemize}
-\tightlist
-\item
- Standard Arduino IDE
-\item
- ESP8266 Arduino core
-
- \begin{itemize}
- \tightlist
- \item
- https://github.com/esp8266/Arduino
- \end{itemize}
-\end{itemize}
-
-\end{frame}
-
-\begin{frame}{Arduino IDE}
-\protect\hypertarget{arduino-ide}{}
-
-\includegraphics{images/arduino-ide.png}
-
-\end{frame}
-
-\begin{frame}[fragile]{Arduino code structure}
-\protect\hypertarget{arduino-code-structure}{}
-
-\begin{Shaded}
-\begin{Highlighting}[]
-\DataTypeTok{void}\NormalTok{ setup() \{}
- \CommentTok{// Called once}
-\NormalTok{\}}
-
-\DataTypeTok{void}\NormalTok{ loop() \{}
- \CommentTok{// Called repeatedly}
-\NormalTok{\}}
-\end{Highlighting}
-\end{Shaded}
-
-\note{MCU programming is often structured into:
-
-\begin{itemize}
-\tightlist
-\item
- Configure
-
- \begin{itemize}
- \tightlist
- \item
- CPU
- \item
- GPIO ports
- \item
- MCU’s peripherals
- \item
- The rest of the board
- \item
- Configure application and callbacks.
- \end{itemize}
-\item
- Sleep
-\end{itemize}
-
-Arduino chooses to run the cpu at 100\% instead of the sleep step..}
-
-\end{frame}
-
-\begin{frame}[fragile]{Arduino file structure}
-\protect\hypertarget{arduino-file-structure}{}
-
-\begin{verbatim}
-foo/
- foo.ino
- config.h
-\end{verbatim}
-
-\note{\texttt{foo.ino} must always be in a \texttt{foo} directory.
-
-config.h is created by “new tab”.}
-
-\end{frame}
-
-\begin{frame}[fragile]{Generic Arduino APIs}
-\protect\hypertarget{generic-arduino-apis}{}
-
-\begin{Shaded}
-\begin{Highlighting}[]
-\CommentTok{// Pin: D0, D1, etc.}
-\CommentTok{// Mode: OUTPUT, INPUT, INPUT_PULLUP}
-\DataTypeTok{void}\NormalTok{ pinMode(}\DataTypeTok{uint8_t}\NormalTok{ pin, }\DataTypeTok{uint8_t}\NormalTok{ mode);}
-
-\CommentTok{// State: HIGH, LOW, true/false, 1/0}
-\DataTypeTok{void}\NormalTok{ digitalWrite(}\DataTypeTok{uint8_t}\NormalTok{ pin, }\DataTypeTok{uint8_t}\NormalTok{ state);}
-\DataTypeTok{int}\NormalTok{ digitalRead(}\DataTypeTok{uint8_t}\NormalTok{ pin);}
-
-\DataTypeTok{unsigned} \DataTypeTok{long}\NormalTok{ now millis();}
-\DataTypeTok{unsigned} \DataTypeTok{long}\NormalTok{ now micros();}
-\end{Highlighting}
-\end{Shaded}
-
-\end{frame}
-
-\begin{frame}[fragile]{ESP Arduino APIs}
-\protect\hypertarget{esp-arduino-apis}{}
-
-\begin{Shaded}
-\begin{Highlighting}[]
-\KeywordTok{class}\NormalTok{ \{}
- \DataTypeTok{void}\NormalTok{ restart();}
- \DataTypeTok{uint32_t}\NormalTok{ getFreeHeap();}
- \DataTypeTok{uint32_t}\NormalTok{ getChipId();}
-
-\NormalTok{ ...}
-\NormalTok{\} ESP;}
-
-\CommentTok{// Usage}
-\NormalTok{ESP.restart();}
-\end{Highlighting}
-\end{Shaded}
-
-\end{frame}
-
-\begin{frame}[fragile]{ESP Arduino APIs}
-\protect\hypertarget{esp-arduino-apis-1}{}
-
-\begin{Shaded}
-\begin{Highlighting}[]
-\KeywordTok{class}\NormalTok{ \{}
-\NormalTok{ String macAddress();}
-
- \DataTypeTok{wl_status_t}\NormalTok{ status();}
- \DataTypeTok{int32_t}\NormalTok{ RSSI();}
-
-\NormalTok{ IPAddress localIP();}
-\NormalTok{ IPAddress subnetMask();}
-\NormalTok{ IPAddress gatewayIP();}
-\NormalTok{ IPAddress dnsIP(}\DataTypeTok{uint8_t}\NormalTok{ dns_no = }\DecValTok{0}\NormalTok{);}
-
-\NormalTok{ ...}
-\NormalTok{\} WiFi;}
-
-\CommentTok{// Usage:}
-
-\NormalTok{Serial.println(WiFi.localIP().toString());}
-\end{Highlighting}
-\end{Shaded}
-
-\note{http://arduino-esp8266.readthedocs.io/en/latest/libraries.html}
-
-\end{frame}
-
\hypertarget{lecture-mqtt}{%
\section{Lecture: MQTT}\label{lecture-mqtt}}
diff --git a/slides/what-is-iot-text.pdf b/slides/what-is-iot-text.pdf
index 2508346..7b5a4cb 100644
--- a/slides/what-is-iot-text.pdf
+++ b/slides/what-is-iot-text.pdf
Binary files differ
diff --git a/slides/what-is-iot.md b/slides/what-is-iot.md
index db78358..b0f3762 100644
--- a/slides/what-is-iot.md
+++ b/slides/what-is-iot.md
@@ -15,6 +15,144 @@ header-includes:
---
+# NodeMCU
+
+!comment(aka NodeMCU aka ESP-12)
+
+## NodeMCU hardware
+
+!ifndef(QUICK)(
+![](images/NodeMCU-–-Board-de-desarrollo-con-módulo-ESP8266-WiFi-y-Lua-4.jpg)
+)
+
+## NodeMCU hardware
+
+!ifndef(QUICK)(
+\begin{center}
+!include(images/nodemcu.pgf)
+\end{center}
+)
+
+## ESP8266 software layers
+
+!ifndef(QUICK)(
+\begin{center}
+!include(images/esp+arduino-sdks.pgf)
+\end{center}
+)
+
+## ESP8266 + Arduino
+
+* Standard Arduino IDE
+* ESP8266 Arduino core
+ * https://github.com/esp8266/Arduino
+
+## Arduino IDE
+
+!ifndef(QUICK)(
+![](images/arduino-ide.png)
+)
+
+## Arduino code structure
+
+~~~ .c++
+void setup() {
+ // Called once
+}
+
+void loop() {
+ // Called repeatedly
+}
+~~~
+
+::: notes
+
+MCU programming is often structured into:
+
+* Configure
+ * CPU
+ * GPIO ports
+ * MCU's peripherals
+ * The rest of the board
+ * Configure application and callbacks.
+* Sleep
+
+Arduino chooses to run the cpu at 100% instead of the sleep step..
+
+:::
+
+## Arduino file structure
+
+ foo/
+ foo.ino
+ config.h
+
+::: notes
+
+`foo.ino` must always be in a `foo` directory.
+
+config.h is created by "new tab".
+
+:::
+
+## Generic Arduino APIs
+
+~~~c++
+// Pin: D0, D1, etc.
+// Mode: OUTPUT, INPUT, INPUT_PULLUP
+void pinMode(uint8_t pin, uint8_t mode);
+
+// State: HIGH, LOW, true/false, 1/0
+void digitalWrite(uint8_t pin, uint8_t state);
+int digitalRead(uint8_t pin);
+
+unsigned long now millis();
+unsigned long now micros();
+~~~
+
+## ESP Arduino APIs
+
+~~~c++
+class {
+ void restart();
+ uint32_t getFreeHeap();
+ uint32_t getChipId();
+
+ ...
+} ESP;
+
+// Usage
+ESP.restart();
+~~~
+
+## ESP Arduino APIs
+
+~~~c++
+class {
+ String macAddress();
+
+ wl_status_t status();
+ int32_t RSSI();
+
+ IPAddress localIP();
+ IPAddress subnetMask();
+ IPAddress gatewayIP();
+ IPAddress dnsIP(uint8_t dns_no = 0);
+
+ ...
+} WiFi;
+
+// Usage:
+
+Serial.println(WiFi.localIP().toString());
+~~~
+
+::: notes
+
+http://arduino-esp8266.readthedocs.io/en/latest/libraries.html
+
+:::
+
# What is IoT
## What is IoT
@@ -179,31 +317,28 @@ Datasheet page 18
## What is the internet again?
-## OSI model
-
-1. Physical Layer
-1. Data Link Layer
-1. Network Layer
-1. Transport Layer
-1. Session Layer
-1. Presentation Layer
-1. Application Layer
+## TCP/IP Layers
+!ifndef(QUICK)(
+\begin{center}
+!include(images/tcpip.pgf)
+\end{center}
+)
-* [Wikipedia: OSI model](https://en.wikipedia.org/wiki/OSI_model)
-* [Wikipedia: OSI model#Examples](https://en.wikipedia.org/wiki/OSI_model#Examples)
-
-::: notes
-
-Does not match the TCP/IP stack very closely.
+## Packet encapsulation
-:::
+!ifndef(QUICK)(
+\begin{center}
+!include(images/ip-encapsulation.pgf)
+\end{center}
+)
-## Layer 1: Physical Layer
+## Network interface
-* 10BASE5, 10BASE2
-* 10BASE-T / 100BASE-TX / 1000BASE-TX
-* 802.11a/b/g/n PHY
+* Ethernet
+ * 10BASE5, 10BASE2, 10BASE-T / 100BASE-TX / 1000BASE-TX
+* Wi-Fi
+ * 802.11a/b/g/n
* RS-232
::: notes
@@ -222,39 +357,17 @@ levels. The signaling does not specify any max data rate, very high rates
:::
-
-## Layer 2: Data Link Layer
-
-* Ethernet
-* WiFi
-* Bluetooth
-* Token Ring
-
-## Layer 3: Network Layer
+## Internet
* IP
* ICMP
-* IPX
-## Layer 4: Transport Layer
+## Transport
* TCP
* UDP
-
-## Layer 5: Session Layer
-
-* "sockets"
-* NetBIOS
-
-## Layer 6: Presentation Layer
-
-* SSL
-
-::: notes
-
-This layer is not really much used in the IP stack
-
-:::
+* SCTP
+* QUIC
## Layer 7: Application Layer
@@ -300,144 +413,6 @@ Note that the "total length" field is 16 bits, 2 bytes, it's maximum value is 64
\end{center}
)
-# Lecture: ESP8266
-
-!comment(aka NodeMCU aka ESP-12)
-
-## NodeMCU hardware
-
-!ifndef(QUICK)(
-![](images/NodeMCU-–-Board-de-desarrollo-con-módulo-ESP8266-WiFi-y-Lua-4.jpg)
-)
-
-## NodeMCU hardware
-
-!ifndef(QUICK)(
-\begin{center}
-!include(images/nodemcu.pgf)
-\end{center}
-)
-
-## ESP8266 software layers
-
-!ifndef(QUICK)(
-\begin{center}
-!include(images/esp+arduino-sdks.pgf)
-\end{center}
-)
-
-## ESP8266 + Arduino
-
-* Standard Arduino IDE
-* ESP8266 Arduino core
- * https://github.com/esp8266/Arduino
-
-## Arduino IDE
-
-!ifndef(QUICK)(
-![](images/arduino-ide.png)
-)
-
-## Arduino code structure
-
-~~~ .c++
-void setup() {
- // Called once
-}
-
-void loop() {
- // Called repeatedly
-}
-~~~
-
-::: notes
-
-MCU programming is often structured into:
-
-* Configure
- * CPU
- * GPIO ports
- * MCU's peripherals
- * The rest of the board
- * Configure application and callbacks.
-* Sleep
-
-Arduino chooses to run the cpu at 100% instead of the sleep step..
-
-:::
-
-## Arduino file structure
-
- foo/
- foo.ino
- config.h
-
-::: notes
-
-`foo.ino` must always be in a `foo` directory.
-
-config.h is created by "new tab".
-
-:::
-
-## Generic Arduino APIs
-
-~~~c++
-// Pin: D0, D1, etc.
-// Mode: OUTPUT, INPUT, INPUT_PULLUP
-void pinMode(uint8_t pin, uint8_t mode);
-
-// State: HIGH, LOW, true/false, 1/0
-void digitalWrite(uint8_t pin, uint8_t state);
-int digitalRead(uint8_t pin);
-
-unsigned long now millis();
-unsigned long now micros();
-~~~
-
-## ESP Arduino APIs
-
-~~~c++
-class {
- void restart();
- uint32_t getFreeHeap();
- uint32_t getChipId();
-
- ...
-} ESP;
-
-// Usage
-ESP.restart();
-~~~
-
-## ESP Arduino APIs
-
-~~~c++
-class {
- String macAddress();
-
- wl_status_t status();
- int32_t RSSI();
-
- IPAddress localIP();
- IPAddress subnetMask();
- IPAddress gatewayIP();
- IPAddress dnsIP(uint8_t dns_no = 0);
-
- ...
-} WiFi;
-
-// Usage:
-
-Serial.println(WiFi.localIP().toString());
-~~~
-
-::: notes
-
-http://arduino-esp8266.readthedocs.io/en/latest/libraries.html
-
-:::
-
# Lecture: MQTT
## MQTT