main.cpp

00001 #include "mbed.h"
00002 #include "GSwifi.h"
00003 
00004 #define SECURE GSSEC_WPA_PSK
00005 #define SSID "SSID"
00006 #define PASS "passkey"
00007 
00008 #define TWITTER "Tweet%20from%20GainSpan%20Wi-Fi"
00009 #define HTTP_HOST "api.supertweet.net" // SuperTweet.net
00010 // #define HTTP_HOST "twitter-basicauth.appspot.com" // TOBASIC!
00011 #define HTTP_URI "/1/statuses/update.xml"
00012 #define HTTP_USER "username"
00013 #define HTTP_PASS "password"
00014 
00015 GSwifi gs(p13, p14); // TX, RX (no flow control)
00016 // GSwifi gs(p13, p14, p12, P0_22); // TX, RX, CTS, RTS
00017 Serial pc(USBTX, USBRX);
00018 DigitalOut led1(LED1), led2(LED2);
00019 
00020 void onGsReceive (int cid, int len) {
00021     int i;
00022     char buf[GS_DATA_SIZE + 1];
00023     
00024     led2 = 1;
00025     i = gs.recv(cid, buf, len);
00026     buf[i] = 0;
00027     pc.printf(buf);
00028 }
00029 
00030 int main () {
00031     int r;
00032     IpAddr ipaddr, netmask, gateway, nameserver;
00033     Host host;
00034     char msg[] = "status=" TWITTER;
00035 
00036     led1 = 1;
00037     pc.baud(115200);
00038     
00039     pc.printf("connect\r\n");
00040     if (gs.connect(SECURE, SSID, PASS, 0)) {
00041         return -1;
00042     }
00043     gs.getAddress(ipaddr, netmask, gateway, nameserver);
00044     pc.printf("ip %d.%d.%d.%d\r\n", ipaddr[0], ipaddr[1], ipaddr[2], ipaddr[3]);
00045     
00046     pc.printf("httpPost\r\n");
00047     host.setName(HTTP_HOST);
00048     r = gs.httpPost(host, HTTP_URI, msg, HTTP_USER, HTTP_PASS, 0, &onGsReceive);
00049     if (r >= 0) {
00050         for (;;) {
00051             gs.poll();
00052             if (! gs.isConnected(r)) break;
00053 
00054             wait_ms(50);
00055             led1 = !led1;
00056             led2 = 0;
00057         }
00058     }
00059 
00060     pc.printf("exit\r\n");
00061 }