2026-02-22: Intro: OS And C++ (Live Demo)
=========================================

.. note::

   This session was entirely live demonstrated by teacher. No need to
   repeat all the steps.

* Login to Pi at home: ``ssh -p 2022 jfasch.bounceme.net``

.. code-block:: console

   $ ls -l /sys/class/hwmon/
   $ ls -l /sys/class/hwmon/hwmon2/

* Show how to use that sensor from the commandline
  (:doc:`/trainings/material/soup/linux/hardware/w1/topic`)
* Write a C program that reads the sensor value in a loop (a "data
  logger", so to
  say). (:doc:`/trainings/material/soup/linux/sysprog/syscalls/index`)
* Transform the sensor into a dedicated type/class
  (:doc:`/trainings/material/soup/cxx/cxx03/020-data-encapsulation/index`)

.. literalinclude:: code/intro.cpp
   :caption: :download:`code/intro.cpp`
   :language: c++