Liam Grazier
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Final351CW_FINAL
by 
Liam Grazier
Network/network.cpp
- Committer:
- liam_grazier
- Date:
- 2018-01-09
- Revision:
- 10:098c2fa0a1a6
- Parent:
- 8:582ac4c5a524
File content as of revision 10:098c2fa0a1a6:
/* ELEC351 COURSEWORK 2018
DESIGNED USING MBED ONLINE COMPILER IMPORTED TO KEIL
LIAM GRAZIER // DOUG TILLEY // ALEX BARON
*/
#if !FEATURE_LWIP
#error [NOT_SUPPORTED] LWIP not supported for this target
#endif
#include "mbed.h"
#include "EthernetInterface.h"
#include "TCPServer.h"
#include "TCPSocket.h"
char realtime[32]; //char for storing the RTC
#include <iostream>
#include <string>
#include "BMP280.h"
#include "components.hpp"
#include "network.hpp"
Mutex Net; //mutex lock for the network.
#define HTTP_STATUS_LINE "HTTP/1.0 200 OK"
#define HTTP_HEADER_FIELDS "Content-Type: text/html; charset=utf-8"
#define HTTP_MESSAGE_BODY1 "" \
"<html>" "\r\n" \
" <body style=\"display:flex;text-align:center\">" "\r\n" \
" <div style=\"margin:auto\">" "\r\n" \
" <h1>Sensor Data</h1>" "\r\n" \
" <p>Light Level LDR value: " "\r\n"
#define HTTP_Pressure1 "" \
"<html>" "\r\n" \
" <body style=\"display:flex;text-align:center\">" "\r\n" \
" <div style=\"margin:auto\">" "\r\n" \
" <h1> </h1>" "\r\n" \
" <p>Pressure(mbar): " "\r\n"
#define HTTP_Pressure2 "" \
"</p>" "\r\n" \
" </div>" "\r\n" \
" </body>" "\r\n" \
"</html>"
#define HTTP_TIME "" \
"<html>" "\r\n" \
" <body style=\"display:flex;text-align:center\">" "\r\n" \
" <div style=\"margin:auto\">" "\r\n" \
" <h1> </h1>" "\r\n" \
" <p>Time: " "\r\n"
#define HTTP_Temperature1 "" \
"<html>" "\r\n" \
" <body style=\"display:flex;text-align:center\">" "\r\n" \
" <div style=\"margin:auto\">" "\r\n" \
" <h1> </h1>" "\r\n" \
" <p>Temperature(Degrees Celcius): " "\r\n"
#define HTTP_Temperature2 "" \
"</p>" "\r\n" \
" </div>" "\r\n" \
" </body>" "\r\n" \
"</html>"
#define HTTP_MESSAGE_TIME "" \
"</p>" "\r\n" \
" </div>" "\r\n" \
" </body>" "\r\n" \
"</html>"
#define HTTP_MESSAGE_BODY2 "" \
"</p>" "\r\n" \
" </div>" "\r\n" \
" </body>" "\r\n" \
"</html>"
#define HTTP_RESPONSE HTTP_STATUS_LINE "\r\n" \
HTTP_HEADER_FIELDS "\r\n" \
"\r\n" \
HTTP_MESSAGE_BODY "\r\n"
#define IP "10.0.0.10" //ipaddress
#define NETMASK "255.0.0.0" //subnetmask
#define GATEWAY "10.0.0.1" //defaultgateway
void dispstralltime() //function for getting time from the RTC
{
time_t seconds = time(NULL);
strftime(realtime, 32, "%c\n\r", localtime(&seconds)); //realtime value = yyyy/mm/dd/hh/mm/ss
}
void networksend(void)
{
// interrupt routine setup
Net.lock();
printf("Network Enabled\n\r");//here to show the user in terminal network is initalised
//Configure an ethernet connection
EthernetInterface eth;
eth.set_network(IP, NETMASK, GATEWAY);
eth.connect();
Net.unlock();
//Now setup a web server
TCPServer srv; //TCP/IP Server
TCPSocket clt_sock; //Socket for communication
SocketAddress clt_addr; //Address of incoming connection
/* Open the server on ethernet stack */
srv.open(ð);
/* Bind the HTTP port (TCP 80) to the server */
srv.bind(eth.get_ip_address(), 80);
/* Can handle 5 simultaneous connections */
srv.listen(5);
while (true)
{
Net.lock();
using namespace std;
//Block and wait on an incoming connection
srv.accept(&clt_sock, &clt_addr);
//printf("accept %s:%d\n", clt_addr.get_ip_address(), clt_addr.get_port());
double temp = sensor.getTemperature();
double pres = sensor.getPressure();
//Uses a C++ string to make it easier to concatinate
string response;
//Chars for storing the variables
char adcIn_str[64];
char pres_str[64];
char temp_str[64];
dispstralltime(); //calltime
//Read the LDR value
//declairing floats for storing data
float u = adcIn;
float b = pres;
float a = temp;
//Converterting the floats to chars ready for print
sprintf(adcIn_str, "%5.3f", u );
sprintf(pres_str, "%4.2f", b);
sprintf(temp_str, "%3.1f", a);
//Build the C++ string response
response += HTTP_TIME;
response += realtime; //write time
response += HTTP_MESSAGE_BODY1;
response += adcIn_str; //writeadc
response += HTTP_Temperature1;
response += temp_str; //writetemp
response += HTTP_Temperature2;
response += HTTP_Pressure1;
response += pres_str; //writepressure
response += HTTP_Pressure2;
response += HTTP_MESSAGE_TIME;
response += HTTP_MESSAGE_BODY2;
//Send static HTML response (as a C string)
clt_sock.send(response.c_str(), response.size()+6);
Net.unlock();
Thread::signal_wait(SIG_NET);//thead signal triggered by ticket in main.
}
}