Diff: getweather.cpp

Revision:

0:f46e4f26425a

Child:

1:35888a9f0a48

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/getweather.cpp	Mon Aug 09 14:12:07 2010 +0000
@@ -0,0 +1,75 @@
+#include "mbed.h"
+#include "EthernetNetIf.h"
+#include "HTTPClient.h"
+
+EthernetNetIf eth;
+HTTPClient http;
+
+HTTPResult result;
+bool completed = false;
+void request_callback(HTTPResult r) {
+    result = r;
+    completed = true;
+}
+
+void checkweather(HTTPStream &stream);
+
+char * location;
+char temperature[3];
+char humidity[3];
+char BigBuf[512 + 1] = {0};
+
+int main() {
+    printf("Start\n");
+    printf("Setting up...\n");
+    EthernetErr ethErr = eth.setup();
+    if (ethErr) {
+        printf("Error %d in setup.\n", ethErr);
+        return -1;
+    }
+    printf("Setup OK\n");
+    HTTPStream stream;
+    stream.readNext((byte*)BigBuf, 512);
+
+    checkweather(stream);
+
+
+    while (1) {
+
+    }
+    return 0;
+}
+
+void checkweather(HTTPStream &stream) {
+    HTTPResult r = http.get("http://mobile.weather.gov/port_mp_ns.php?select=3&CityName=Lubbock&site=LUB&State=TX&warnzone=TXZ035", &stream, request_callback); //Load a very large page
+    while (!completed) {
+        Net::poll(); //Polls the Networking stack
+        if (stream.readable()) {
+            BigBuf[stream.readLen()] = 0; //Transform this buffer in a zero-terminated char* string
+
+            // look for key words in the html text
+            location = strstr(BigBuf,"Temperature");
+            if (location != NULL) {
+                strncpy(temperature,location+13,2);
+                location = NULL;
+            }
+
+            location = strstr(BigBuf,"Humidity");
+            if (location != NULL) {
+                strncpy(humidity,location+10,2);
+                location = NULL;
+            }
+
+            stream.readNext((byte*)BigBuf, 512); //Buffer has been read, now we can put more data in it
+        }
+    }
+    printf("\n--------------\n");
+    if (result == HTTP_OK) {
+        printf("Read completely\n");
+        printf("Temperature: %s deg F \n",temperature);
+        printf("Humidity: %s percent \n",humidity);
+
+    } else {
+        printf("Error %d\n", result);
+    }
+}
\ No newline at end of file