Diff: ThingSpeak.cpp

Revision:

0:a7bce9e88175

Child:

1:ea7f0ef29ef5

diff -r 000000000000 -r a7bce9e88175 ThingSpeak.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ThingSpeak.cpp	Mon Jun 05 08:17:19 2017 +0000
@@ -0,0 +1,62 @@
+#include "mbed.h"
+#include "EthernetNetIf.h"
+#include "HTTPClient.h"
+#include "ThingSpeak.h"
+
+Serial pc(USBTX, USBRX);
+
+ThingSpeak::ThingSpeak(char* Key) : thingSpeakKey(Key) {      
+    thingSpeakUrl = "https://api.thingspeak.com/update";
+    thingSpeakRead = "https://api.thingspeak.com/channels/";
+    urlBuffer[0] = 0;
+    fieldBuffer[0] = 0;
+}
+ float ThingSpeak::pull(long int readKey, int field) {
+    sprintf(urlBuffer, "%s%d/fields/%d/last", thingSpeakRead, readKey, field ); 
+    pc.printf("URL Buffer request: %s ", urlBuffer); 
+    res = http.get(urlBuffer, &resp);
+    if (res == HTTP_OK){
+        pc.printf(" Result :\"%s\"\r\n,", resp.gets(), res);
+        float resp2 = atoi(resp.gets());
+        return resp2;
+        }
+    else {
+        pc.printf(" Error %d\r\n", res); 
+        return false;
+    }      
+}
+void ThingSpeak::connect() {
+    pc.printf("Setting up Ethernet...\r\n");
+    EthernetErr ethErr = eth.setup();
+    if(ethErr){
+        pc.printf("Error %d in ethernet setup.\r\n", ethErr);  
+        connect();
+        }
+    pc.printf("Ethernet setup OK\r\n");
+}
+/*
+void ThingSpeak::getIP() {
+   
+}
+*/
+void ThingSpeak::setField(float field, int i) {
+    char fieldi;
+    char fieldShortBuff[8];
+    sprintf(fieldShortBuff, "%f", field);
+    sprintf(&fieldi, "%i", i);
+    strncat(fieldBuffer, "&field", 6 );
+    strncat(fieldBuffer, &fieldi , 1);
+    strncat(fieldBuffer, "=", 1);
+    strncat(fieldBuffer, fieldShortBuff , 6);    
+}
+
+void ThingSpeak::putUp() {
+    sprintf(urlBuffer, "%s?key=%s%s", thingSpeakUrl, thingSpeakKey, fieldBuffer);
+    pc.printf("URL Buffer request: %s ", urlBuffer); 
+    res = http.get(urlBuffer, &resp);
+    if (res == HTTP_OK)
+        pc.printf(" Result :\"%s\"\r\n", resp.gets());
+    else
+        pc.printf(" Error %d\r\n", res); 
+    fieldBuffer[0] = 0;         
+}
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