diff --git a/examples/W5500/client-with-W5500-ESP8266/client-with-W5500-ESP8266.ino b/examples/W5500/client-with-W5500-ESP8266/client-with-W5500-ESP8266.ino
new file mode 100644
index 0000000..29db13e
--- /dev/null
+++ b/examples/W5500/client-with-W5500-ESP8266/client-with-W5500-ESP8266.ino
@@ -0,0 +1,111 @@
+#include <SPI.h>
+#include <Ethernet.h>
+                        
+#include "TinyMqtt.h"   // https://github.com/hsaturn/TinyMqtt
+
+#define WIZRST D3   //Specify pin to use for reseting W5500
+#define WIZCS  D1   //Specify the pin for SPI CS
+
+#define PORT 1883
+MqttBroker broker(PORT);
+unsigned long Time;
+unsigned long freeRam;
+
+/** Basic Mqtt Broker
+  *
+  *  +-----------------------------+
+  *  | ESP                         |
+  *  |       +--------+            |
+  *  |       | broker |            | 1883 <--- External client/s
+  *  |       +--------+            |
+  *  |                             |
+  *  +-----------------------------+
+  *
+  *  Your ESP will become a MqttBroker.
+  *  You can test it with any client such as mqtt-spy for example
+  *
+  */
+
+#if defined(USE_ETHERNET)
+
+byte mac[] = { 0x00, 0xAA, 0xBB, 0xE0, 0x01, 0x25 }; //MAC Address
+//IPAddress ip = (192,168,0,88); //Fixed IP Address
+
+#else
+
+const char* ssid = "xxxxxxx";
+const char* password = "xxxxxxxx";
+
+#endif
+
+
+void WizReset() {
+   Serial.print("Resetting Wiz W5500 Ethernet Board...  ");
+   pinMode(WIZRST, OUTPUT);
+   digitalWrite(WIZRST, HIGH);
+   delay(250);
+   digitalWrite(WIZRST, LOW);
+   delay(50);
+   digitalWrite(WIZRST, HIGH);
+   delay(350);
+   Serial.println("Done.");
+}
+
+void setup()
+{
+  Serial.begin(115200);
+  
+#if defined(USE_ETHERNET)
+
+  Ethernet.init(WIZCS);  // SPI CS Pin
+  SPI.begin();
+  WizReset();
+  Console << TinyConsole::green << "Starting Ethernet...." << endl;
+  Ethernet.begin(mac); //Connect using DHCP
+  //Ethernet.begin(mac,ip); //Connect using Fixed IP
+  if (Ethernet.hardwareStatus() == EthernetNoHardware) {
+    Console << TinyConsole::red << "Ethernet shield was not found.  Sorry, can't run without hardware. :(" << endl;
+  } else 
+  if (Ethernet.linkStatus() == LinkOFF) {
+    Console << TinyConsole::red << "Ethernet cable is not connected." << endl;
+  }
+  Console << TinyConsole::green << "Local Ethernet IP address: " << Ethernet.localIP() << endl;
+  broker.begin();
+  Console << "Broker ready (eth) : " << Ethernet.localIP() << " on port " << PORT << endl;
+
+#else
+
+  if (strlen(ssid)==0)
+    Console << TinyConsole::red << "****** PLEASE MODIFY ssid/password *************" << endl;
+  WiFi.disconnect();                 //Remove previous SSID & Password
+  WiFi.begin(ssid, password);        // Connect to the network
+  Console << TinyConsole::white << "WiFi Connecting to " << ssid << " ...";
+  int i = 0;
+  while (WiFi.status() != WL_CONNECTED) { // Wait for the Wi-Fi to connect
+    delay(1000);
+    Console << TinyConsole::white << ".";
+    i++;
+    if (i > 20) break;
+  }
+  Console << endl << endl;
+  Console << TinyConsole::green << "Connected to " << ssid << " IP address: " << WiFi.localIP() << endl;
+  broker.begin();
+  Console << "Broker ready (wifi) : " << WiFi.localIP() << " on port " << PORT << endl;  
+    
+#endif
+}
+
+void loop()
+{
+  broker.loop();
+  if(millis()-Time>10000) {
+     Time=millis();
+    if(ESP.getFreeHeap()!=freeRam)
+    {
+      freeRam=ESP.getFreeHeap();
+    Serial.print("RAM:");
+    Serial.println(freeRam);
+    }
+  }
+
+}
diff --git a/examples/W5500/client-with-W5500-RP2040/RP2040W5500SimpleBroker.binary.zip b/examples/W5500/client-with-W5500-RP2040/RP2040W5500SimpleBroker.binary.zip
new file mode 100644
index 0000000..f6fd547
Binary files /dev/null and b/examples/W5500/client-with-W5500-RP2040/RP2040W5500SimpleBroker.binary.zip differ
diff --git a/examples/W5500/client-with-W5500-RP2040/client-with-W5500-RP2040.ino b/examples/W5500/client-with-W5500-RP2040/client-with-W5500-RP2040.ino
new file mode 100644
index 0000000..234d2e5
--- /dev/null
+++ b/examples/W5500/client-with-W5500-RP2040/client-with-W5500-RP2040.ino
@@ -0,0 +1,117 @@
+#include <SPI.h>
+#include <Ethernet.h>
+                        
+#include "TinyMqtt.h"   // https://github.com/hsaturn/TinyMqtt
+
+#define WIZRST 20   //Specify pin to use for reseting W5500 = GPIO20
+#define WIZCS  17   //Specify the pin for SPI CS = GPIO17 = D5
+
+#define PORT 1883
+MqttBroker broker(PORT);
+unsigned long Time;
+unsigned long freeRam;
+
+/** Basic Mqtt Broker
+  *
+  *  +-----------------------------+
+  *  | ESP                         |
+  *  |       +--------+            |
+  *  |       | broker |            | 1883 <--- External client/s
+  *  |       +--------+            |
+  *  |                             |
+  *  +-----------------------------+
+  *
+  *  Your ESP will become a MqttBroker.
+  *  You can test it with any client such as mqtt-spy for example
+  *
+  */
+
+#if defined(USE_ETHERNET)
+
+byte mac[] = { 0x00, 0xAA, 0xBB, 0xE0, 0x01, 0x25 }; //MAC Address
+//IPAddress ip = (192,168,0,88); //Fixed IP Address
+
+#else
+
+const char* ssid = "xxxxxxx";
+const char* password = "xxxxxxxx";
+
+#endif
+
+
+void WizReset() {
+   Serial.print("Resetting Wiz W5500 Ethernet Board...  ");
+   pinMode(WIZRST, OUTPUT);
+   digitalWrite(WIZRST, HIGH);
+   delay(250);
+   digitalWrite(WIZRST, LOW);
+   delay(50);
+   digitalWrite(WIZRST, HIGH);
+   delay(350);
+   Serial.println("Done.");
+}
+
+void setup()
+{
+  Serial.begin(115200);
+  
+#if defined(USE_ETHERNET)
+
+  Ethernet.init(WIZCS);  
+  SPI.begin();
+  WizReset();
+  Console << TinyConsole::green << "Starting Ethernet...." << endl;
+  Ethernet.begin(mac); //Connect using DHCP
+  //Ethernet.begin(mac,ip); //Connect using Fixed IP
+  if (Ethernet.hardwareStatus() == EthernetNoHardware) {
+    Console << TinyConsole::red << "Ethernet shield was not found.  Sorry, can't run without hardware. :(" << endl;
+  } else 
+  if (Ethernet.linkStatus() == LinkOFF) {
+    Console << TinyConsole::red << "Ethernet cable is not connected." << endl;
+  }
+  Console << TinyConsole::green << "Local Ethernet IP address: " << Ethernet.localIP() << endl;
+  broker.begin();
+  Console << "Broker ready (eth) : " << Ethernet.localIP() << " on port " << PORT << endl;
+
+#else
+
+  if (strlen(ssid)==0)
+    Console << TinyConsole::red << "****** PLEASE MODIFY ssid/password *************" << endl;
+  WiFi.disconnect();                 //Remove previous SSID & Password
+  WiFi.begin(ssid, password);        // Connect to the network
+  Console << TinyConsole::white << "WiFi Connecting to " << ssid << " ...";
+  int i = 0;
+  while (WiFi.status() != WL_CONNECTED) { // Wait for the Wi-Fi to connect
+    delay(1000);
+    Console << TinyConsole::white << ".";
+    i++;
+    if (i > 20) break;
+  }
+  Console << endl << endl;
+  Console << TinyConsole::green << "Connected to " << ssid << " IP address: " << WiFi.localIP() << endl;
+  broker.begin();
+  Console << "Broker ready (wifi) : " << WiFi.localIP() << " on port " << PORT << endl;  
+    
+#endif
+}
+
+void loop()
+{
+  broker.loop();
+  if(millis()-Time>10000) {
+     Time=millis();
+    #ifdef ARDUINO_ARCH_RP2040
+      if(rp2040.getFreeHeap()!=freeRam) {
+        freeRam=rp2040.getFreeHeap();
+    #else
+      if(ESP.getFreeHeap()!=freeRam) {
+        freeRam=ESP.getFreeHeap();
+    #endif
+    
+      
+    Serial.print("RAM:");
+    Serial.println(freeRam);
+    }
+  }
+
+}
diff --git a/examples/W5500/client-with-W5500-RP2040/readme b/examples/W5500/client-with-W5500-RP2040/readme
new file mode 100644
index 0000000..c351fbc
--- /dev/null
+++ b/examples/W5500/client-with-W5500-RP2040/readme
@@ -0,0 +1,5 @@
+In TinyString.h the operator
+
+  TinyString& operator +=(int);
+
+may need to be added.