ethernet breakout examples

Wiz5500_Ethernet_Breakout/Arduino_Wiz5500_Breakout/Arduino_Wiz5500_Breakout.ino

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+// SPDX-FileCopyrightText: 2025 Liz Clark for Adafruit Industries
+//
+// SPDX-License-Identifier: MIT
+
+/*
+ Web client
+
+ This sketch connects to a website (http://wifitest.adafruit.com)
+ using an Adafruit Wiz5500 Ethernet Breakout
+
+ Circuit:
+ * Ethernet breakout attached to pins 10, 11, 12, 13
+
+ created 18 Dec 2009
+ by David A. Mellis
+ modified 9 Apr 2012
+ by Tom Igoe, based on work by Adrian McEwen
+ modified 10 June 2025
+ by Liz Clark
+
+ */
+
+#include <SPI.h>
+#include <Ethernet.h>
+
+// Enter a MAC address for your controller below.
+byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };
+
+char server[] = "wifitest.adafruit.com";
+
+// Set the static IP address to use if the DHCP fails to assign
+IPAddress ip(192, 168, 0, 177);
+IPAddress myDns(192, 168, 0, 1);
+
+// Initialize the Ethernet client library
+// with the IP address and port of the server
+// that you want to connect to (port 80 is default for HTTP):
+EthernetClient client;
+
+// Variables to measure the speed
+unsigned long beginMicros, endMicros;
+unsigned long byteCount = 0;
+bool printWebData = true;  // set to false for better speed measurement
+
+void setup() {
+  // You can use Ethernet.init(pin) to configure the CS pin
+  // Here you're using pin 10 for CS
+  // SCK: 13, MISO: 12, MOSI: 11
+  Ethernet.init(10);  // Most Arduino shields
+
+  // Open serial communications and wait for port to open:
+  Serial.begin(115200);
+  while (!Serial) {
+    ; // wait for serial port to connect. Needed for native USB port only
+  }
+
+  // start the Ethernet connection:
+  Serial.println("Initialize Ethernet with DHCP:");
+  if (Ethernet.begin(mac) == 0) {
+    Serial.println("Failed to configure Ethernet using DHCP");
+    // Check for Ethernet hardware present
+    if (Ethernet.hardwareStatus() == EthernetNoHardware) {
+      Serial.println("Ethernet breakout was not found.  Check your wiring.");
+      while (true) {
+        delay(1); // do nothing, no point running without Ethernet hardware
+      }
+    }
+    if (Ethernet.linkStatus() == LinkOFF) {
+      Serial.println("Ethernet cable is not connected.");
+    }
+    // try to configure using IP address instead of DHCP:
+    Ethernet.begin(mac, ip, myDns);
+  } else {
+    Serial.print("  DHCP assigned IP ");
+    Serial.println(Ethernet.localIP());
+  }
+  // give the Ethernet a second to initialize:
+  delay(1000);
+  Serial.print("connecting to ");
+  Serial.print(server);
+  Serial.println("...");
+
+  // if you get a connection, report back via serial:
+  if (client.connect(server, 80)) {
+    Serial.print("connected to ");
+    Serial.println(client.remoteIP());
+    // Make a HTTP request:
+    client.println("GET /testwifi/index.html HTTP/1.1");
+    client.println("Host: wifitest.adafruit.com");
+    client.println("Connection: close");
+    client.println();
+  } else {
+    // if you didn't get a connection to the server:
+    Serial.println("connection failed");
+  }
+  beginMicros = micros();
+}
+
+void loop() {
+  // if there are incoming bytes available
+  // from the server, read them and print them:
+  int len = client.available();
+  if (len > 0) {
+    byte buffer[80];
+    if (len > 80) len = 80;
+    client.read(buffer, len);
+    if (printWebData) {
+      Serial.write(buffer, len); // show in the serial monitor (slows some boards)
+    }
+    byteCount = byteCount + len;
+  }
+
+  // if the server's disconnected, stop the client:
+  if (!client.connected()) {
+    endMicros = micros();
+    Serial.println();
+    Serial.println("disconnecting.");
+    client.stop();
+    Serial.print("Received ");
+    Serial.print(byteCount);
+    Serial.print(" bytes in ");
+    float seconds = (float)(endMicros - beginMicros) / 1000000.0;
+    Serial.print(seconds, 4);
+    float rate = (float)byteCount / seconds / 1000.0;
+    Serial.print(", rate = ");
+    Serial.print(rate);
+    Serial.print(" kbytes/second");
+    Serial.println();
+
+    // do nothing forevermore:
+    while (true) {
+      delay(1);
+    }
+  }
+}

Wiz5500_Ethernet_Breakout/CircuitPython_Wiz5500_Breakout/code.py

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+# SPDX-FileCopyrightText: 2021 ladyada for Adafruit Industries
+# SPDX-License-Identifier: MIT
+
+import adafruit_connection_manager
+import adafruit_requests
+import board
+import busio
+import digitalio
+
+from adafruit_wiznet5k.adafruit_wiznet5k import WIZNET5K
+
+print("Wiz5100 Breakout WebClient Test")
+
+TEXT_URL = "http://wifitest.adafruit.com/testwifi/index.html"
+
+cs = digitalio.DigitalInOut(board.D10)
+spi_bus = busio.SPI(board.SCK, MOSI=board.MOSI, MISO=board.MISO)
+
+# Initialize ethernet interface with DHCP
+eth = WIZNET5K(spi_bus, cs)
+
+# Initialize a requests session
+pool = adafruit_connection_manager.get_radio_socketpool(eth)
+ssl_context = adafruit_connection_manager.get_radio_ssl_context(eth)
+requests = adafruit_requests.Session(pool, ssl_context)
+
+print("Chip Version:", eth.chip)
+print("MAC Address:", [hex(i) for i in eth.mac_address])
+print("My IP address is:", eth.pretty_ip(eth.ip_address))
+print("IP lookup adafruit.com: %s" % eth.pretty_ip(eth.get_host_by_name("adafruit.com")))
+
+
+# eth._debug = True
+print("Fetching text from", TEXT_URL)
+r = requests.get(TEXT_URL)
+print("-" * 40)
+print(r.text)
+print("-" * 40)
+r.close()
+
+print("Done!")