4180 / Mbed 2 deprecated weathe_traffic

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Dependencies:   4DGL-uLCD-SE NetServices mbed spxml

Fork of weather by 4180

main.cpp@7:92cbee5144d7, 2016-04-29 (annotated)

Committer:
agamemaker
Date:
Fri Apr 29 05:53:09 2016 +0000
Revision:
7:92cbee5144d7
Parent:
6:714ce05307c2 
done

Who changed what in which revision?

UserRevisionLine numberNew contents of line
4180_1 0:4a917644acc4 1 #include "mbed.h"
4180_1 0:4a917644acc4 2 #include "EthernetNetIf.h"
4180_1 0:4a917644acc4 3 #include "HTTPClient.h"
4180_1 0:4a917644acc4 4 #include "spdomparser.hpp"
4180_1 0:4a917644acc4 5 #include "spxmlnode.hpp"
4180_1 0:4a917644acc4 6 #include "spxmlhandle.hpp"
ashea6 2:b14f99568253 7 //#include "NokiaLCD.h"
ashea6 2:b14f99568253 8 #include "uLCD_4DGL.h"
lballiet91 1:c96f140b5710 9 #include <string>
4180_1 0:4a917644acc4 10 // Internet of Things weather display example: LCD displays LA current weather via internet Google API
4180_1 0:4a917644acc4 11 // Adapted for LCD from http://mbed.org/users/hlipka/programs/spxmltest_weather/lif782
4180_1 0:4a917644acc4 12
ashea6 2:b14f99568253 13 //NokiaLCD lcd(p5, p7, p8, p9, NokiaLCD::LCD6610); // mosi, sclk, cs, rst, type
ashea6 2:b14f99568253 14 uLCD_4DGL lcd(p28,p27,p29);
4180_1 0:4a917644acc4 15 EthernetNetIf eth;
4180_1 0:4a917644acc4 16 HTTPClient http;
4180_1 0:4a917644acc4 17 HTTPResult result;
agamemaker 5:6c3b0bd1f680 18 Serial other(p9, p10);
4180_1 0:4a917644acc4 19 bool completed = false;
agamemaker 4:fd8c945b8d79 20 void request_callback(HTTPResult r)
agamemaker 4:fd8c945b8d79 21 {
4180_1 0:4a917644acc4 22 result = r;
4180_1 0:4a917644acc4 23 completed = true;
4180_1 0:4a917644acc4 24 }
4180_1 0:4a917644acc4 25
agamemaker 4:fd8c945b8d79 26 void parseWeather(SP_XmlElementNode *node, string loc)
agamemaker 4:fd8c945b8d79 27 {
4180_1 0:4a917644acc4 28 //extracts current weather XML data fields for LCD
4180_1 0:4a917644acc4 29 SP_XmlHandle handle(node);
lballiet91 1:c96f140b5710 30 SP_XmlElementNode * condition = handle.getChild( "item" ).getChild("yweather:condition").toElement();
lballiet91 1:c96f140b5710 31 // Print the name of the city
agamemaker 5:6c3b0bd1f680 32 lcd.locate(0,1);
lballiet91 1:c96f140b5710 33 lcd.printf("%s:", loc);
lballiet91 1:c96f140b5710 34 //Print the weather conditions
agamemaker 5:6c3b0bd1f680 35 lcd.locate(0,2);
lballiet91 1:c96f140b5710 36 lcd.printf("%s",condition->getAttrValue("text"));
lballiet91 1:c96f140b5710 37 //Print the termperature (in degrees Celcius)
agamemaker 5:6c3b0bd1f680 38 lcd.locate(0,3);
agamemaker 3:9e55847f25c4 39 lcd.printf("%sF",condition->getAttrValue("temp"));
4180_1 0:4a917644acc4 40 }
agamemaker 5:6c3b0bd1f680 41 /*
agamemaker 4:fd8c945b8d79 42 void parseTraffic(SP_XmlElementNode *node)
agamemaker 4:fd8c945b8d79 43 {
agamemaker 4:fd8c945b8d79 44 //extracts current weather XML data fields for LCD
agamemaker 4:fd8c945b8d79 45 SP_XmlHandle handle(node);
agamemaker 4:fd8c945b8d79 46 SP_XmlElementNode * condition = handle.getChild( "item" ).getChild("yweather:condition").toElement();
agamemaker 4:fd8c945b8d79 47 //Print the weather conditions
agamemaker 4:fd8c945b8d79 48 lcd.locate(0,5);
agamemaker 4:fd8c945b8d79 49 lcd.printf("%s",condition->getAttrValue("realTime"));
agamemaker 4:fd8c945b8d79 50 }
agamemaker 5:6c3b0bd1f680 51 */
agamemaker 4:fd8c945b8d79 52 int weather()
agamemaker 4:fd8c945b8d79 53 {
agamemaker 6:714ce05307c2 54 completed = false;
4180_1 0:4a917644acc4 55 SP_XmlDomParser parser;
4180_1 0:4a917644acc4 56 HTTPStream stream;
4180_1 0:4a917644acc4 57
4180_1 0:4a917644acc4 58 char BigBuf[512 + 1] = {0};
4180_1 0:4a917644acc4 59 stream.readNext((byte*)BigBuf, 512); //Point to buffer for the first read
lballiet91 1:c96f140b5710 60 //Yahoo! weather API for selected city - get XML document for parsing
agamemaker 5:6c3b0bd1f680 61 HTTPResult r = http.get("https://query.yahooapis.com/v1/public/yql?q=select%20item.condition%20from%20weather.forecast%20where%20woeid%20in%20%28select%20woeid%20from%20geo.places%281%29%20where%20text%3D%22atlanta%2C%20ga%22%29&amp", &stream, request_callback);
4180_1 0:4a917644acc4 62 while (!completed) {
4180_1 0:4a917644acc4 63 Net::poll(); //Polls the Networking stack
4180_1 0:4a917644acc4 64 if (stream.readable()) {
4180_1 0:4a917644acc4 65 BigBuf[stream.readLen()] = 0; //Transform this buffer in a zero-terminated char* string
4180_1 0:4a917644acc4 66 parser.append( BigBuf, strlen(BigBuf)); // stream current buffer data to the XML parser
4180_1 0:4a917644acc4 67 stream.readNext((byte*)BigBuf, 512); //Buffer has been read, now we can put more data in it
4180_1 0:4a917644acc4 68 }
4180_1 0:4a917644acc4 69 }
agamemaker 5:6c3b0bd1f680 70 lcd.locate(0,6);
4180_1 0:4a917644acc4 71 if (result == HTTP_OK) {
agamemaker 5:6c3b0bd1f680 72 lcd.printf("Weather complete");
4180_1 0:4a917644acc4 73 } else {
agamemaker 5:6c3b0bd1f680 74 lcd. printf("Weather Error %d", result);
4180_1 0:4a917644acc4 75 return -1;
4180_1 0:4a917644acc4 76 }
4180_1 0:4a917644acc4 77
4180_1 0:4a917644acc4 78 SP_XmlHandle rootHandle( parser.getDocument()->getRootElement() );
agamemaker 3:9e55847f25c4 79 SP_XmlElementNode * child2 = rootHandle.getChild( "results" ).getChild( "channel" )
lballiet91 1:c96f140b5710 80 .toElement();
agamemaker 7:92cbee5144d7 81
agamemaker 5:6c3b0bd1f680 82 //lcd.printf(BigBuf);
agamemaker 7:92cbee5144d7 83
4180_1 0:4a917644acc4 84 if ( child2 ) {
agamemaker 3:9e55847f25c4 85 parseWeather(child2, "Atlanta"); //parses XML "current-conditions" info
4180_1 0:4a917644acc4 86 }
agamemaker 7:92cbee5144d7 87
4180_1 0:4a917644acc4 88 if ( NULL != parser.getError() ) {
4180_1 0:4a917644acc4 89 lcd.printf( "\n error: %s\n", parser.getError() );
4180_1 0:4a917644acc4 90 }
agamemaker 4:fd8c945b8d79 91 return 0;
agamemaker 4:fd8c945b8d79 92 }
agamemaker 4:fd8c945b8d79 93
agamemaker 7:92cbee5144d7 94 int traffic(char * traff_domain_name)
agamemaker 4:fd8c945b8d79 95 {
agamemaker 6:714ce05307c2 96 completed = false;
agamemaker 5:6c3b0bd1f680 97 //char traff_domain_name[512] = "http://www.mapquestapi.com/traffic/v1/incidents?key=Vz3y4TYfSQa8b1iUJUv9N6meA9GAAhBH&callback=handleIncidentsResponse&boundingBox=33.977698,-84.662833,33.520957,-84.113516&filters=construction,incidents&inFormat=kvp&outFormat=xml";
agamemaker 7:92cbee5144d7 98 //char traff_domain_name[512] = "https://www.mapquestapi.com/directions/v2/route?key=ZoiBJSzSoqfdNiLD0Z9kZdw4uAN5QUQW&from=710%20Culworth%20Manor%2CAlpharetta%2CGA&to=855%20West%20Peachtree%20St%2CAtlanta%2CCGA&outFormat=xml";
agamemaker 5:6c3b0bd1f680 99 char *tstartXML = "<realTime>"; //RSS XML start title
agamemaker 5:6c3b0bd1f680 100 char *tendXML = "</realTime>"; //RSS XML end title
agamemaker 5:6c3b0bd1f680 101 char *tsptr; //Start Pointer
agamemaker 5:6c3b0bd1f680 102 char *teptr; //End Pointer
agamemaker 7:92cbee5144d7 103 char time[4] = "";
agamemaker 5:6c3b0bd1f680 104 int i=0,j=0;
agamemaker 7:92cbee5144d7 105 //time = "0000";
agamemaker 4:fd8c945b8d79 106 HTTPStream stream;
agamemaker 5:6c3b0bd1f680 107 char BigBuf[2048 + 1] = {0};
agamemaker 5:6c3b0bd1f680 108 stream.readNext((byte*)BigBuf, 2048); //Point to buffer for the first read
agamemaker 5:6c3b0bd1f680 109 //Get web page with XML
agamemaker 5:6c3b0bd1f680 110 HTTPResult r = http.get(traff_domain_name, &stream, request_callback);
agamemaker 4:fd8c945b8d79 111 while (!completed) {
agamemaker 5:6c3b0bd1f680 112 Net::poll(); // Polls the Networking stack
agamemaker 5:6c3b0bd1f680 113 if (stream.readable()) { // check for end of file
agamemaker 5:6c3b0bd1f680 114 BigBuf[stream.readLen()] = 0; // Transform this buffer in a zero-terminated char* string
agamemaker 5:6c3b0bd1f680 115 tsptr = BigBuf;
agamemaker 5:6c3b0bd1f680 116 // displays titles on LCD from XML "<title>....title text...</title>"
agamemaker 5:6c3b0bd1f680 117 do {
agamemaker 5:6c3b0bd1f680 118 tsptr = strstr(tsptr,tstartXML); // find <title> in string - NULL if not
agamemaker 5:6c3b0bd1f680 119 teptr = strstr(tsptr,tendXML); // find <\title> in string - NULL if not
agamemaker 5:6c3b0bd1f680 120 if (tsptr!=NULL) tsptr = tsptr + strlen(tstartXML);// move to char after "<title>"
agamemaker 5:6c3b0bd1f680 121 if ((tsptr!=NULL)&&(teptr!=NULL)) {
agamemaker 5:6c3b0bd1f680 122 i=0;
agamemaker 5:6c3b0bd1f680 123 // loop to display lines on LCD
agamemaker 5:6c3b0bd1f680 124 for (j=0; (j)<(strlen(tsptr)-strlen(teptr)); j=j+16) {
agamemaker 5:6c3b0bd1f680 125 //lcd.locate(0,(2+(j/16)));
agamemaker 5:6c3b0bd1f680 126 // loop to output a line on the LCD
agamemaker 5:6c3b0bd1f680 127 for (i=0; ((i<16)&&(tsptr[i+j] != '<')); i++) {
agamemaker 5:6c3b0bd1f680 128 //lcd.putc(tsptr[i+j]);
agamemaker 5:6c3b0bd1f680 129 time[i+j] = tsptr[i+j];
agamemaker 5:6c3b0bd1f680 130 other.putc(tsptr[i+j]);
agamemaker 7:92cbee5144d7 131 wait(.25);
agamemaker 5:6c3b0bd1f680 132 }
agamemaker 5:6c3b0bd1f680 133 }
agamemaker 5:6c3b0bd1f680 134 wait(5);
agamemaker 5:6c3b0bd1f680 135 lcd.locate(0,5);
agamemaker 5:6c3b0bd1f680 136 }
agamemaker 5:6c3b0bd1f680 137 } while (tsptr!=NULL); // No more "<fullDesc>"s in BigBuf to display
agamemaker 5:6c3b0bd1f680 138 stream.readNext((byte*)BigBuf, 2048); //Buffer read, now we can put more data in it
agamemaker 4:fd8c945b8d79 139 }
agamemaker 4:fd8c945b8d79 140 }
agamemaker 5:6c3b0bd1f680 141 other.putc('^');
agamemaker 5:6c3b0bd1f680 142 //lcd.printf("%s", BigBuf);
agamemaker 5:6c3b0bd1f680 143 lcd.locate(0,7);
agamemaker 4:fd8c945b8d79 144 if (result == HTTP_OK) {
agamemaker 5:6c3b0bd1f680 145 lcd.printf("Traffic complete");
agamemaker 4:fd8c945b8d79 146 } else {
agamemaker 5:6c3b0bd1f680 147 lcd. printf("Traffic Error %d", result);
agamemaker 4:fd8c945b8d79 148 return -1;
agamemaker 4:fd8c945b8d79 149 }
agamemaker 5:6c3b0bd1f680 150 lcd.locate(0,4);
agamemaker 5:6c3b0bd1f680 151 lcd.printf("time:%s", time);
agamemaker 4:fd8c945b8d79 152 return 0;
agamemaker 4:fd8c945b8d79 153 }
agamemaker 4:fd8c945b8d79 154
agamemaker 4:fd8c945b8d79 155 int main()
agamemaker 4:fd8c945b8d79 156 {
agamemaker 7:92cbee5144d7 157 lcd.printf("Reading\n");
agamemaker 7:92cbee5144d7 158 char in[512];
agamemaker 7:92cbee5144d7 159 char url[512];
agamemaker 7:92cbee5144d7 160 int i = 0;
agamemaker 7:92cbee5144d7 161 bool flag = false;
agamemaker 7:92cbee5144d7 162 while(!flag) {
agamemaker 7:92cbee5144d7 163 in[i] = other.getc();
agamemaker 7:92cbee5144d7 164 //other.putc(url[i]);
agamemaker 7:92cbee5144d7 165 flag = in[i] == '^';
agamemaker 7:92cbee5144d7 166 i++;
agamemaker 7:92cbee5144d7 167 }
agamemaker 7:92cbee5144d7 168 in[i-1] = NULL;
agamemaker 7:92cbee5144d7 169 sprintf(url, "%s&outFormat=xml", in);
agamemaker 7:92cbee5144d7 170 lcd.printf("url:%s\n", url);
agamemaker 7:92cbee5144d7 171 wait(5);
agamemaker 7:92cbee5144d7 172 lcd.cls();
agamemaker 5:6c3b0bd1f680 173 lcd.locate(0,5);
agamemaker 4:fd8c945b8d79 174 lcd.printf("net setup");
agamemaker 5:6c3b0bd1f680 175 lcd.locate(0,5);
agamemaker 4:fd8c945b8d79 176 EthernetErr ethErr = eth.setup(60000);
agamemaker 4:fd8c945b8d79 177 if (ethErr) {
agamemaker 4:fd8c945b8d79 178 lcd.printf("Error in setup");
agamemaker 4:fd8c945b8d79 179 return -1;
agamemaker 4:fd8c945b8d79 180 }
agamemaker 5:6c3b0bd1f680 181 lcd.printf("net ok ");
agamemaker 7:92cbee5144d7 182 traffic(url);
agamemaker 5:6c3b0bd1f680 183 weather();
agamemaker 3:9e55847f25c4 184 }