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{{WarningMessage|text=This technical note was validated against specific versions of hardware and software. It may not work with other versions.}}
</pre>
==AddendumWhat's under the hood==
For readers interested in the technologies underlying the Azure IoT Edge solution, it is worth remembering that modules are implemented as Docker containers. After deploying the ''Simulated Temperature Sensor'' module, for instance, it is easy to verify that a new container image is installed on the edge device:
<pre class="board-terminal">
mcr.microsoft.com/azureiotedge-diagnostics 1.0.8 a480fa622e2a 4 weeks ago 7.34MB
</pre>
Similarly, one can use <code>docker</code> command line to verify that the ''Simulated Temperature Sensor'' module is listed among running containers:
da40f11b4c33 mcr.microsoft.com/azureiotedge-agent:1.0 "/bin/sh -c 'echo \"$…" 10 days ago Up 17 hours edgeAgent
</pre>
The same information can be retrieved by using <code>iotedge</code> command line:
edgeAgent running Up 17 hours mcr.microsoft.com/azureiotedge-agent:1.0
</pre>
It is also interesting to list the processes running inside the <code>azureiotedge-simulated-temperature-sensor</code> container:
<pre class="board-terminal">
root@sbcx:~# docker container top 145db7780bec
UID PID PPID C STIME TTY TIME CMD
armbian 2612 2586 0 10:24 ? 00:00:20 /usr/bin/dotnet SimulatedTemperatureSensor.dll
</pre>
The <code>/usr/bin/dotnet</code> file is an ARM executable ...
<pre class="board-terminal">
root@sbcx:/var/lib/docker/overlay2/b4cc9541e8175bae26aa42952490a0b2fcdd5895bfe18f8092b58c27531259b6/merged/usr/share/dotnet# file dotnet
dotnet: ELF 32-bit LSB executable, ARM, EABI5 version 1 (SYSV), dynamically linked, interpreter /lib/ld-linux-armhf.so.3, for GNU/Linux 2.6.32, BuildID[sha1]=ef6dc8332270899ce1c7de629bdbcc95168fc710, stripped
</pre>
... while <code>SimulatedTemperatureSensor.dll</code> is a [https://en.wikipedia.org/wiki/Portable_Executable Portable Executable] file:
<pre class="board-terminal">
root@sbcx:/var/lib/docker/overlay2/b4cc9541e8175bae26aa42952490a0b2fcdd5895bfe18f8092b58c27531259b6# file merged/app/SimulatedTemperatureSensor.dll
merged/app/SimulatedTemperatureSensor.dll: PE32 executable (console) Intel 80386 Mono/.Net assembly, for MS Windows
</pre>
Unfortunately, at the time of this writing, the official source code of the ''Simulated Temperature Sensor'' module was not available. The original repository was cloned [https://github.com/Warlib1975/azureiotedge-simulated-temperature-sensor here], however.
