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--- en:iot-open:scriptingprogramming [2023/08/24 23:22] – pczekalski
+++ en:iot-open:scriptingprogramming [2024/03/05 15:42] (current) – [Programming with the use of scripts] pczekalski
@@ Line 1: / Line 1: @@
+====== Programming with the Use of Scripts ======
+{{:en:iot-open:czapka_b.png?50| General audience classification icon }}{{:en:iot-open:czapka_m.png?50| General audience classification icon }}{{:en:iot-open:czapka_e.png?50| General audience classification icon }}\\
+Several programming models for IoT script programming are available. Depending on the hardware model used (SoC or OS-based MCU), it may involve single script execution (e.g. Raspberry Pi Pico RP2040, Edge-class IoT) or multithreaded, parallel, multiple scripts, doing multiple tasks (e.g. Raspberry Pi 4, Fog-class IoT). The idea and model of the scripting programming for SoC class devices (edge) were presented in the chapter [[en:iot-open:introductiontoembeddedprogramming2|Script Programming with Middleware]].\\ In the case of far more powerful, Fog-class IoT devices that are OS-based devices, a variety of programming languages and, thus, scripting interpreters are available.
+Among others, the most common scripting languages for fog class devices are :
+  * Bash scripting (OS command scripting) usually does not provide support for the GPIO, intended to automate OS tasks,
+  * Python scripting, cross-platform for both Edge-class devices (Micrpython) and Fog-class (regular Python, usually run on Linux),
+  * C#, limited to the Windows IoT for Raspberry Pi.
+=== Bash scripting ===
+As Bash scripting is well covered by many manuals for Linux, in the following chapters, we focus on two others: Python and C#. Moreover, accessing the GPIO in the case of the bash requires installing external tools; thus, it does not apply to IoT programming straightforwardly but rather as a supplementary tool to automate tasks other than core programming.
+=== Python ===
+Python programming for IoT devices is dual:
+  * Regular Python interpreter can be used in Fog class devices such as Raspberry Pi and its clones. In this case, the Python interpreter is run as a separate process in the Linux OS, the same way as in regular PCs. It has full access to the GPIO, however.
+  * Micropython is dedicated to SoCs and is distributed as the firmware that must be flashed into the device. Commonly, Micropython exposes serial communication on dedicated pins, exposing a Python console that looks similar to the command line Python interface in the PCs
+=== C# .NET ===
+When writing this publication, the .NET framework with C# interpreter is available only for Raspberry Pi devices as a part of the Windows IoT operating system ((https://dotnet.microsoft.com/en-us/apps/iot)). It is a niche, still fully functional and solid solution. Its newer versions are available only as a commercial product, however.
+<WRAP excludefrompdf>
+In the following chapters there is a brief introduction to programming with scripts for IoT devices in Python and C#:
+  * [[en:iot-open:scriptingprogramming:pythonfundamentals]],
+  * [[en:iot-open:getting_familiar_with_your_hardware_rtu_itmo_sut:raspberrypi_rpi:programming_fundamentals_winiot]].
+</WRAP>