Fix leaks on wifi reconnection, update docs

examples/Azure_IoT_Adu_ESP32/Azure_IoT_Adu_ESP32.ino

@@ -219,6 +219,8 @@ static void connect_to_wifi()
   Logger.Info("Connecting to WIFI SSID " + String(ssid));
 
   WiFi.mode(WIFI_STA);
+  WiFi.disconnect();
+  delay(100);
   WiFi.begin(ssid, password);
   while (WiFi.status() != WL_CONNECTED)
   {

examples/Azure_IoT_Adu_ESP32/readme.md

@@ -46,7 +46,7 @@ This is a "to-the-point" guide outlining how to run an Azure SDK for Embedded C
 - Setting up and configuring the necessary services for the scenario.
 - Configuration, build, and run instructions for the IoT ADU sample.
 
-_The following was run on Windows 11 and Ubuntu Desktop 20.04 environments, with Arduino IDE 1.8.19 and ESP32 board library version 2.0.4._
+_The following was run on Windows 11, with Arduino IDE 2.1.0 and ESP32 board library version 2.0.9._
 
 ## Prerequisites
 
@@ -63,6 +63,7 @@ _The following was run on Windows 11 and Ubuntu Desktop 20.04 environments, with
 
   - ESP32 boards are not natively supported by Arduino IDE, so you need to add them manually.
   - Follow the [instructions](https://github.com/espressif/arduino-esp32) in the official ESP32 repository.
+  - If your ESP32 board is not recognized and a COM port is not mapped by your computer, try installing the [serial port drivers](https://docs.espressif.com/projects/esp-idf/en/latest/esp32/get-started/establish-serial-connection.html#connect-esp32-to-pc) recommended by ESPRESSIF.
 - Install Azure CLI and Azure IoT Module
 
   See steps to install both [here](https://learn.microsoft.com/azure/iot-hub-device-update/create-update?source=recommendations#prerequisites).

examples/Azure_IoT_Central_ESP32/Azure_IoT_Central_ESP32.ino

@@ -470,6 +470,8 @@ static void connect_to_wifi()
   LogInfo("Connecting to WIFI wifi_ssid %s", wifi_ssid);
 
   WiFi.mode(WIFI_STA);
+  WiFi.disconnect();
+  delay(100);
   WiFi.begin(wifi_ssid, wifi_password);
   while (WiFi.status() != WL_CONNECTED)
   {

examples/Azure_IoT_Central_ESP32/readme.md

@@ -21,6 +21,8 @@ You will complete the following tasks:
 * Build the image and flash it onto the ESP32
 * Use Azure IoT Central to create cloud components, view properties, view device telemetry, and call direct commands
 
+_The following was run on Windows 11, with Arduino IDE 2.1.0 and ESP32 board library version 2.0.9._
+
 ## Prerequisites
 
 * Have the latest [Arduino IDE](https://www.arduino.cc/en/Main/Software) installed.
@@ -29,6 +31,7 @@ You will complete the following tasks:
 
     - ESP32 boards are not natively supported by Arduino IDE, so you need to add them manually.
     - Follow the [instructions](https://github.com/espressif/arduino-esp32) in the official ESP32 repository.
+    - If your ESP32 board is not recognized and a COM port is not mapped by your computer, try installing the [serial port drivers](https://docs.espressif.com/projects/esp-idf/en/latest/esp32/get-started/establish-serial-connection.html#connect-esp32-to-pc) recommended by ESPRESSIF.
 
 * Hardware
 

examples/Azure_IoT_Central_ESP32_AzureIoTKit/Azure_IoT_Central_ESP32_AzureIoTKit.ino

@@ -474,6 +474,8 @@ static void connect_to_wifi()
   LogInfo("Connecting to WIFI wifi_ssid %s", wifi_ssid);
 
   WiFi.mode(WIFI_STA);
+  WiFi.disconnect();
+  delay(100);
   WiFi.begin(wifi_ssid, wifi_password);
   while (WiFi.status() != WL_CONNECTED)
   {

examples/Azure_IoT_Central_ESP32_AzureIoTKit/readme.md

@@ -21,6 +21,8 @@ You will complete the following tasks:
 * Build the image and flash it onto the ESP32 DevKit
 * Use Azure IoT Central to create cloud components, view properties, view device telemetry, and call direct commands
 
+_The following was run on Windows 11, with Arduino IDE 2.1.0 and ESP32 board library version 2.0.9._
+
 ## Prerequisites
 
 * Have the latest [Arduino IDE](https://www.arduino.cc/en/Main/Software) installed.
@@ -29,6 +31,7 @@ You will complete the following tasks:
 
     - ESP32 boards are not natively supported by Arduino IDE, so you need to add them manually.
     - Follow the [instructions](https://github.com/espressif/arduino-esp32) in the official ESP32 repository.
+    - If your ESP32 board is not recognized and a COM port is not mapped by your computer, try installing the [serial port drivers](https://docs.espressif.com/projects/esp-idf/en/latest/esp32/get-started/establish-serial-connection.html#connect-esp32-to-pc) recommended by ESPRESSIF.
 
 * Hardware
 

examples/Azure_IoT_Hub_ESP32/Azure_IoT_Hub_ESP32.ino

@@ -99,6 +99,8 @@ static void connectToWiFi()
   Logger.Info("Connecting to WIFI SSID " + String(ssid));
 
   WiFi.mode(WIFI_STA);
+  WiFi.disconnect();
+  delay(100);
   WiFi.begin(ssid, password);
   while (WiFi.status() != WL_CONNECTED)
   {

examples/Azure_IoT_Hub_ESP32/readme.md

@@ -38,7 +38,7 @@ This is a "to-the-point" guide outlining how to run an Azure SDK for Embedded C
 - Configuration instructions for the Arduino IDE to compile a sample using the [Azure SDK for Embedded C](https://github.com/Azure/azure-sdk-for-c).
 - Configuration, build, and run instructions for the IoT Hub telemetry sample.
 
-_The following was run on Windows 10 and Ubuntu Desktop 20.04 environments, with Arduino IDE 1.8.15 and ESP32 board library version 1.0.6._
+_The following was run on Windows 11, with Arduino IDE 2.1.0 and ESP32 board library version 2.0.9._
 
 ## Prerequisites
 
@@ -53,6 +53,7 @@ _The following was run on Windows 10 and Ubuntu Desktop 20.04 environments, with
 
     - ESP32 boards are not natively supported by Arduino IDE, so you need to add them manually.
     - Follow the [instructions](https://github.com/espressif/arduino-esp32) in the official ESP32 repository.
+    - If your ESP32 board is not recognized and a COM port is not mapped by your computer, try installing the [serial port drivers](https://docs.espressif.com/projects/esp-idf/en/latest/esp32/get-started/establish-serial-connection.html#connect-esp32-to-pc) recommended by ESPRESSIF.
 
 - Have one of the following interfaces to your Azure IoT Hub set up:
   - [Azure Command Line Interface](https://docs.microsoft.com/cli/azure/install-azure-cli?view=azure-cli-latest) (Azure CLI) utility installed, along with the [Azure IoT CLI extension](https://github.com/Azure/azure-iot-cli-extension).

examples/Azure_IoT_Hub_ESP8266/Azure_IoT_Hub_ESP8266.ino

@@ -90,6 +90,8 @@ static void connectToWiFi()
   Serial.println(ssid);
 
   WiFi.mode(WIFI_STA);
+  WiFi.disconnect();
+  delay(100);
   WiFi.begin(ssid, password);
   while (WiFi.status() != WL_CONNECTED)
   {

examples/Azure_IoT_Hub_ESP8266/readme.md

@@ -32,7 +32,7 @@ This is a "to-the-point" guide outlining how to run an Azure SDK for Embedded C
 - Configuration instructions for the Arduino IDE to compile a sample using the Azure SDK for Embedded C.
 - Configuration, build, and run instructions for the IoT Hub telemetry sample.
 
-_The following was run on Windows 10 and Ubuntu Desktop 20.04 environments, with Arduino IDE 1.8.15 and Esp8266 module 3.0.1._
+_The following was run on Windows 11, with Arduino IDE 2.1.0 and Esp8266 module 3.1.2._
 
 ## Prerequisites
 

library.properties

@@ -1,5 +1,5 @@
 name=Azure SDK for C
-version=1.1.3
+version=1.1.4
 author=Microsoft Corporation
 maintainer=Microsoft Corporation <aziotarduino@microsoft.com>
 sentence=Azure SDK for C library for Arduino.