Diff: main.cpp

Revision:

0:1ef95b520410

Child:

1:b9ca2db84b72

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Fri Apr 21 15:45:04 2017 +0000
@@ -0,0 +1,137 @@
+/*
+ * File: main.cpp
+ * Program: iac-audit
+ * Developer: Connor Horne
+ * Description: Sensor reading and sending to cloud program made for the IAC. Built for use with the FRDM-K64F and attahced systems.
+*/
+
+
+// mbed headers
+#include "mbed.h"
+#include "ESP8266.h"
+#include "picojson.h"
+#include <string>
+
+bool setup(ESP8266 * esp, Serial * output);
+bool receive(ESP8266 * esp, Serial * output);
+
+picojson::value v;
+char * json;
+char resp[1024]; //buffer for the responce
+double field;
+bool pass = false;
+
+// entry point
+int main()
+{   
+    // system wide vars
+    mbed::Serial output(USBTX, USBRX);  
+    ESP8266 esp(PTC17, PTC16, 115200);
+    
+    output.printf("starting esp8266\r\n");
+    
+    esp.Reset();
+    wait(5);
+    //esp.baud(115200);
+    wait(5);
+    
+    output.printf("starting setup\r\n");    
+    
+    pass = setup(&esp, &output);
+    
+    output.printf("sending value\r\n");
+    
+    pass = receive(&esp, &output);
+    
+} // end main
+
+bool setup(ESP8266 * esp, Serial * comm)
+{
+    char buffer[1024];
+    char ip[256];
+    char status[1024];
+    
+    comm->printf("!setting mode\r\n");
+    esp->SetMode(3); //'1'
+    esp->RcvReply(buffer, 9000);
+    comm->printf("response: %s\r\n", buffer);
+    
+    comm->printf("!setting connection\r\n");
+    esp->SetSingle();
+    esp->RcvReply(buffer, 5000);
+    comm->printf("response: %s\r\n", buffer);
+    
+    /*comm->printf("!getting list\r\n");    
+    esp->GetList(buffer);    
+    comm->printf("got list\r\n");
+    comm->printf("%s\r\n", buffer);*/
+  
+    comm->printf("!joining AP\r\n");    
+    esp->Join("533B", "ransom007"); //change to SSID and Password
+    esp->RcvReply(buffer, 5000);
+    comm->printf("response: %s\r\n", buffer);
+    
+    comm->printf("!getting IP\r\n");    
+    esp->GetIP(ip);
+    esp->RcvReply(buffer, 5000);
+    comm->printf("response: %s\r\n", buffer);
+    comm->printf("ip: %s\r\n", ip);
+    
+    comm->printf("!getting connection status\r\n");    
+    esp->GetConnStatus(status);
+    esp->RcvReply(buffer, 5000);
+    comm->printf("response: %s\r\n", buffer);
+    comm->printf("stats: %s\r\n", status);
+    
+    return true;
+}
+
+bool receive(ESP8266 * esp, Serial * comm)
+{
+    char buffer[1024];
+    char cmd[64];
+        
+    comm->printf("!setting up TCP connection\r\n");   
+    strcpy(cmd,"AT+CIPSTART=\"TCP\",\"184.106.153.149\",80");
+    esp->SendCMD(cmd);
+    esp->RcvReply(buffer, 5000);
+    comm->printf("response: %s\r\n", buffer);
+    
+    char message[512];
+    sprintf(resp,"GET http://api.thingspeak.com/channels/246738/feeds.json?metadata=true&results=0\r\n"); //GET https://api.thingspeak.com/channels/215748/feeds/last\r\n
+    comm->printf("!sending packet length \r\n");   
+    sprintf(cmd, "AT+CIPSEND=%d", strlen(resp)+2);
+    esp->SendCMD(cmd);
+    esp->RcvReply(buffer, 5000);
+    comm->printf("response: %s\r\n", buffer);
+    
+    comm->printf("!sending data packet\r\n");
+    esp->SendCMD(resp);
+    esp->RcvReply(buffer, 7000);
+    comm->printf("response: %s\r\n", buffer);
+    if(strlen(buffer)!=0)
+    {
+    comm->printf("response: %s\r\n", buffer);
+    strcpy(json, buffer);
+    char * json=(char*) malloc(strlen(buffer)+1);
+          comm->printf("parsing\r\n");
+          string err = picojson::parse(v, json, json + strlen(json));
+          if(err.empty())
+          {
+           field=v.get("field1").get<double>();
+          // comm->printf("field1 value: %f", field);
+           }
+          else
+          {
+              comm->printf("error parsing\r\n");
+          }     
+        }
+    comm->printf("field1 value: %f", field);
+    comm->printf("!closing TCP connection\r\n");   
+    strcpy(cmd, "AT+CIPCLOSE");
+    esp->SendCMD(cmd);
+    esp->RcvReply(buffer, 7000);
+    comm->printf("response: %s\r\n", buffer);
+    
+    return true;
+}
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