Diff: examples/TcpClient/TcpClient.ino

Revision:

0:e3fb1267e3c3

Child:

3:6b1c9bd7773a

diff -r 000000000000 -r e3fb1267e3c3 examples/TcpClient/TcpClient.ino
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/examples/TcpClient/TcpClient.ino	Wed Dec 21 16:58:10 2016 +0100
@@ -0,0 +1,91 @@
+/*
+ * UIPEthernet TcpClient example.
+ *
+ * UIPEthernet is a TCP/IP stack that can be used with a enc28j60 based
+ * Ethernet-shield.
+ *
+ * UIPEthernet uses the fine uIP stack by Adam Dunkels <adam@sics.se>
+ *
+ *      -----------------
+ *
+ * This TcpClient example gets its local ip-address via dhcp and sets
+ * up a tcp socket-connection to 192.168.0.1 port 5000 every 5 Seconds.
+ * After sending a message it waits for a response. After receiving the
+ * response the client disconnects and tries to reconnect after 5 seconds.
+ *
+ * Copyright (C) 2013 by Norbert Truchsess <norbert.truchsess@t-online.de>
+ */
+
+#include <UIPEthernet.h>
+#include "utility/logging.h"
+
+EthernetClient client;
+signed long next;
+
+void setup() {
+
+  #if ACTLOGLEVEL>LOG_NONE
+    LogObject.begin(9600);
+  #endif
+
+  uint8_t mac[6] = {0x00,0x01,0x02,0x03,0x04,0x05};
+  Ethernet.begin(mac);
+
+  #if ACTLOGLEVEL>=LOG_INFO
+    LogObject.uart_send_str(F("localIP: "));
+    LogObject.println(Ethernet.localIP());
+    LogObject.uart_send_str(F("subnetMask: "));
+    LogObject.println(Ethernet.subnetMask());
+    LogObject.uart_send_str(F("gatewayIP: "));
+    LogObject.println(Ethernet.gatewayIP());
+    LogObject.uart_send_str(F("dnsServerIP: "));
+    LogObject.println(Ethernet.dnsServerIP());
+  #endif
+
+  next = 0;
+}
+
+void loop() {
+
+  if (((signed long)(millis() - next)) > 0)
+    {
+      next = millis() + 5000;
+      #if ACTLOGLEVEL>=LOG_INFO
+        LogObject.uart_send_strln(F("Client connect"));
+      #endif
+      // replace hostname with name of machine running tcpserver.pl
+//      if (client.connect("server.local",5000))
+      if (client.connect(IPAddress(192,168,0,1),5000))
+        {
+          #if ACTLOGLEVEL>=LOG_INFO
+            LogObject.uart_send_strln(F("Client connected"));
+          #endif
+          client.println(F("DATA from Client"));
+          while(client.available()==0)
+            {
+              if (next - millis() < 0)
+                goto close;
+            }
+          int size;
+          while((size = client.available()) > 0)
+            {
+              uint8_t* msg = (uint8_t*)malloc(size);
+              size = client.read(msg,size);
+              #if ACTLOGLEVEL>=LOG_INFO
+                LogObject.write(msg,size);
+              #endif
+              free(msg);
+            }
+close:
+          //disconnect client
+          #if ACTLOGLEVEL>=LOG_INFO
+            LogObject.uart_send_strln(F("Client disconnect"));
+          #endif
+          client.stop();
+        }
+      else
+        #if ACTLOGLEVEL>=LOG_INFO
+          LogObject.uart_send_strln(F("Client connect failed"));
+        #endif
+    }
+}