main.cpp

00001 /*
00002 Copyright (c) 2011 blmarket.net
00003 */
00004 /*
00005 Copyright (c) 2010 Peter Barrett
00006 
00007 Permission is hereby granted, free of charge, to any person obtaining a copy
00008 of this software and associated documentation files (the "Software"), to deal
00009 in the Software without restriction, including without limitation the rights
00010 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
00011 copies of the Software, and to permit persons to whom the Software is
00012 furnished to do so, subject to the following conditions:
00013 
00014 The above copyright notice and this permission notice shall be included in
00015 all copies or substantial portions of the Software.
00016 
00017 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
00018 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
00019 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
00020 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
00021 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
00022 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
00023 THE SOFTWARE.
00024 */
00025 
00026 #include "mbed.h"
00027 #include "USBHost.h"
00028 #include "Utils.h"
00029 #include "FATFileSystem.h"
00030 #include "EthernetNetIf.h"
00031 #include "HTTPClient.h"
00032 #include "TextLCD.h"
00033 
00034 Serial pc(USBTX, USBRX);
00035 TextLCD lcd(p21, p23, p22, p27, p28, p29, p30); // rs, rw, e, d0-d3
00036 EthernetNetIf eth(
00037   IpAddr(110,76,72,244), //IP Address
00038   IpAddr(255,255,255,0), //Network Mask
00039   IpAddr(110,76,72,1), //Gateway
00040   IpAddr(143,248,1,177)  //DNS
00041 );
00042 HTTPClient *twitterclient = NULL; // will be set by initialization func.
00043 
00044 u8 prevkey[8] = {0};
00045 char keyMap[256] = {0,0,0,0,'a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z',0,0,0,0,0,0,0,0,0,0,0/*return*/,0,0,0,' '};
00046 
00047 int msglen = 0;
00048 char msgtxt[256];
00049 bool needcls = false;
00050 
00051 void sendTweet(void)
00052 {
00053     if(msglen == 0) return;
00054     if(twitterclient == NULL) return;
00055     HTTPMap msg;
00056     msg["status"] = msgtxt;
00057     
00058     twitterclient->basicAuth("blmarketmbed", "1324"); //We use basic authentication, replace with you account's parameters
00059     
00060     //No need to retieve data sent back by the server
00061     HTTPResult r = twitterclient->post("http://api.supertweet.net/1/statuses/update.xml", msg, NULL); 
00062     if( r == HTTP_OK )
00063     {
00064         printf("Tweet sent with success!\n");
00065         lcd.cls();
00066         lcd.printf("Tweet success!\nType Tweet msg\n");
00067     }
00068     else
00069     {
00070         printf("Problem during tweeting, return code %d\n", r);
00071         lcd.cls();
00072         lcd.printf("Tweet failure\n");
00073     }
00074     needcls = true;
00075     
00076     msglen = 0;
00077     msgtxt[msglen]=0;
00078 }
00079 
00080 void onPressedKey(u8 value)
00081 {
00082     if(value == 40)
00083     {
00084         sendTweet();
00085         return;
00086     }
00087     
00088     if(keyMap[value] != 0)
00089     {
00090         if(msglen >= 32) return;
00091         if(needcls)
00092         {
00093             lcd.cls();
00094             needcls = false;
00095         }
00096         lcd.printf("%c",keyMap[value]);
00097         msgtxt[msglen++] = keyMap[value];
00098         msgtxt[msglen] = 0;
00099     }
00100     else
00101     {
00102         printf("Unknown keycode %d\n",value);
00103     } 
00104 }
00105 
00106 void HandleKeyboardCallback(u8 *data, int len)
00107 {
00108     if(len != 8)
00109     {
00110         printf("Wrong KeyboardCallback : len should be 8\n");
00111         return;
00112     }
00113     
00114     for(int i=2;i<len;i++) if(data[i] != 0)
00115     {
00116         bool omit = false;
00117         for(int j=2;j<len;j++)
00118         {
00119             if(prevkey[j] == data[i]) 
00120             {
00121                 omit = true;
00122                 break;
00123             }
00124         }
00125         if(omit) continue;
00126         onPressedKey(data[i]);        
00127     }
00128     memcpy(prevkey, data, sizeof(u8)*len);    
00129 }
00130 
00131 int main() 
00132 {
00133     printf("Init\n");
00134     lcd.printf("TwitterClient\nLoading...\n");
00135 
00136     EthernetErr ethErr = eth.setup();
00137     if(ethErr)
00138     {
00139         printf("Error %d in setup.\n", ethErr);
00140         return -1;
00141     }
00142     printf("\r\nSetup OK\r\n");
00143 
00144     pc.baud(9600);
00145     USBInit();
00146     
00147     twitterclient = new HTTPClient();
00148     
00149     lcd.cls();
00150     lcd.printf("Type Tweet msg\n");
00151     needcls = true;
00152     
00153     while(1)
00154     {
00155         USBLoop();
00156     }
00157     
00158 /*
00159     printf("\r\nSetting up...\r\n");
00160     
00161     HTTPClient twitter;
00162     
00163     HTTPMap msg;
00164     msg["status"] = "Now I need to attach my USB keyboard to mbed"; //A good example of Key/Value pair use with Web APIs
00165     
00166     twitter.basicAuth("blmarketmbed", "1324"); //We use basic authentication, replace with you account's parameters
00167     
00168     //No need to retieve data sent back by the server
00169     HTTPResult r = twitter.post("http://api.supertweet.net/1/statuses/update.xml", msg, NULL); 
00170     if( r == HTTP_OK )
00171     {
00172         printf("Tweet sent with success!\n");
00173         lcd.printf("Tweet success!\n");
00174     }
00175     else
00176     {
00177         printf("Problem during tweeting, return code %d\n", r);
00178         lcd.printf("Tweet failure\n");
00179     }
00180 */    
00181   
00182     return 0;
00183 }
00184