Update README/About pages: Focus should be on C++

README.md

@@ -1,6 +1,6 @@
 # Sming
 
-Sming is an asynchronous embedded C/C++ framework with superb performance and multiple network features. 
+Sming is an asynchronous embedded C++ framework with superb performance and multiple network features. 
 Sming is [open source](LICENSE), modular and supports [multiple architectures](https://sming.readthedocs.io/en/latest/features.html) including ESP8266, ESP32 and RP2040.
 
 [![Examples](https://github.com/SmingHub/Sming/wiki/images/small/combine.png)](https://github.com/SmingHub/Sming/wiki/examples)
@@ -48,7 +48,8 @@ git clone https://github.com/SmingHub/Sming.git
 
 
 ## Examples
-The examples are a great way to learn the API and brush up your C/C++ knowledge.
+
+The examples are a great way to learn the API and brush up your C++ knowledge.
 Once you have completed the installation of the development tools, you can get the latest source code.
 
 ```

docs/source/about.rst

@@ -1,27 +1,31 @@
 About
 =====
 
-
 Sming
 -----
 
-Sming is an asynchronous C/C++ framework with superb performance and multiple network features.
-Sming is open source and is tailored towards embedded devices. It supports multiple architectures.
+Sming is an open-source asynchronous C++ embedded framework with networking support
+and is designed to be reliable, responsive and modular.
+
+The project was started in 2015 for the Esp8266 and has since been adapted to other devices,
+including a :doc:`host emulator <arch/host/index>` for advanced development and debugging.
+
+The framework is actively developed and has an extensive suite of integration tests.
 
-The project was started in 2015 and is actively developed.
 
 Arduino
 -------
+
 Arduino is an open-source electronics platform based on easy-to-use hardware and software.
-Sming is compatible with (most) standard `Arduino libraries <https://sming.readthedocs.io/en/latest/libraries.html>`_,
-which means that you can use any popular hardware in few lines of code.
+Sming is provided with a curated set of :doc:`/libraries`, including many standard Arduino-style ones.
+Lost of popular hardware can be used in a few lines of code.
 
 
 ESP8266
 -------
 
-`ESP8266 <https://www.espressif.com/en/products/hardware/esp8266ex/overview>`__ is a microcontroller with Wi-Fi,
-manufactured by `Espressif <https://espressif.com>`__ Systems.
+`ESP8266 <https://www.espressif.com/en/products/socs/esp8266>`__ is a microcontroller with Wi-Fi,
+manufactured by Espressif Systems.
 It is the first microcontroller that was supported from Sming.
 Sming provides access to all ESP8266 functions such as GPIO, timers, WiFi configuration, etc.
 
@@ -30,9 +34,25 @@ ESP32
 -----
 
 `ESP32 <https://www.espressif.com/en/products/socs/esp32>`__ is the second microcontroller by `Espressif <https://espressif.com>`__ Systems.
-There are also a number of more recent variants such as the esp32-s2 and esp32-c3.
+There are also a number of more recent variants such as the esp32-s2 and esp32-c3/s3 (RISCV) which are supported by Sming.
+
+The Esp32 WiFi stack requires FreeRTOS so Sming applications also have to run on this platform.
+However, Sming applications should avoid making use of FreeRTOS-specific features where possible
+as this reduces portability to other devices.
+
+
+RP2040
+------
+
+The `RP2040 <https://www.raspberrypi.com/documentation/microcontrollers/rp2040.html>`__ is the Raspberry Pi Foundation's first microcontroller.
+It is an ARM-based device with dual cores and a good set of hardware peripherals.
+Perhaps its most outstanding feature is programmable-IO which allows high-performance protocols to be implemented.
+
+There are various development boards available, including the original Pico boards which have a networked option: the Pico-W.
+This uses an external CYW43-based network SOC which handles all the low-level protocols.
 
-Sming currently provides support for these devices but is more limited and should be considered 'experimental'.
+The RP2040 SDK is simple, reliable of high-quality and is fully open-source, including the bootloader ROM code.
+There is no FreeRTOS complexity to deal with and is an ideal foundation for Sming applications.
 
 
 Licenses
@@ -41,7 +61,7 @@ Licenses
 Sming Core
    LGPL v3
 
-Espressif SDK
+Espressif Non-OS SDK for Esp8266
    ESPRESSIF MIT License (with some closed-source blobs)
 
 Libraries

docs/source/arch/host/debugging/index.rst

@@ -8,7 +8,7 @@ For ``MacOS``, GDB can be installed via ``brew`` but it requires code-signing.
 This is not a trivial procedure and ``lldb`` is recommended.
 This is installed with the standard xcode development tools.
 
-For other development platforms a GNU C/C++ debugger is required.
+For other development platforms the GNU debugger is required.
 Make sure that you have the following executable in your PATH::
 
     gdb

docs/source/getting-started/index.rst

@@ -39,7 +39,7 @@ following these :doc:`instructions </_inc/docs/README>`.
 Examples
 --------
 
-The examples are a great way to learn the API and brush up your C/C++ knowledge.
+The examples are a great way to learn the API and brush up your C++ knowledge.
 
 -  `Basic Blink <#basic-blink>`__
 -  `Simple GPIO input/output <#simple-gpio-inputoutput>`__

docs/source/index.rst

@@ -5,7 +5,7 @@ Welcome to Sming Framework
 
 **Let's do smart things!!!**
 
-Sming is an asynchronous embedded C/C++ framework with superb performance and multiple network features.
+Sming is an asynchronous embedded C++ framework with superb performance and multiple network features.
 Sming is open source, modular and supports :doc:`multiple architectures <features>` including ESP8266, ESP32 and RP2040.
 
 |samples|_

docs/source/upgrading/4.7-5.1.rst

@@ -20,7 +20,7 @@ This has to be replaced with the directive ``COMPONENT_DEPENDS += CommandProcess
 Including Header Files
 ~~~~~~~~~~~~~~~~~~~~~~~
 
-To include the command processing headers in your C/C++ application we used to do the following
+To include the command processing headers in your C++ application we used to do the following
 
 For example::