Joseph Lind / Mbed 2 deprecated twitterController

Control an LCD connected to your mbed with a Twitter account.

Dependencies:   EthernetInterface HTTPClientAuthAndPathExtension NokiaLCDScreenErrorFixed mbed-rtos mbed

main.cpp@0:b3d9fc5861c6, 2012-10-12 (annotated)

Committer:
jlind6
Date:
Fri Oct 12 16:49:30 2012 +0000
Revision:
0:b3d9fc5861c6
Initial commit. Can be used with specific Twitter accounts.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
jlind6 0:b3d9fc5861c6 1
jlind6 0:b3d9fc5861c6 2 #include "mbed.h"
jlind6 0:b3d9fc5861c6 3 #include "EthernetInterface.h"
jlind6 0:b3d9fc5861c6 4 #include "HTTPClient.h"
jlind6 0:b3d9fc5861c6 5 #include "NokiaLCD.h"
jlind6 0:b3d9fc5861c6 6 #include <string>
jlind6 0:b3d9fc5861c6 7
jlind6 0:b3d9fc5861c6 8 EthernetInterface eth;
jlind6 0:b3d9fc5861c6 9 HTTPClient client;
jlind6 0:b3d9fc5861c6 10 DigitalOut indicatorLED(LED1);
jlind6 0:b3d9fc5861c6 11 NokiaLCD lcd(p5, p7, p8, p9, NokiaLCD::LCD6610); // mosi, sclk, cs, rst, type
jlind6 0:b3d9fc5861c6 12 char *str;
jlind6 0:b3d9fc5861c6 13 char url[1024];
jlind6 0:b3d9fc5861c6 14
jlind6 0:b3d9fc5861c6 15 int main() {
jlind6 0:b3d9fc5861c6 16 string text;
jlind6 0:b3d9fc5861c6 17 int background = 0x0000FF;
jlind6 0:b3d9fc5861c6 18 int squareColor = 0x00FF00;
jlind6 0:b3d9fc5861c6 19 int squareLength = 0;
jlind6 0:b3d9fc5861c6 20
jlind6 0:b3d9fc5861c6 21 string previousID;
jlind6 0:b3d9fc5861c6 22
jlind6 0:b3d9fc5861c6 23 eth.init();
jlind6 0:b3d9fc5861c6 24 eth.connect();
jlind6 0:b3d9fc5861c6 25
jlind6 0:b3d9fc5861c6 26 str = (char *) malloc(8192);
jlind6 0:b3d9fc5861c6 27
jlind6 0:b3d9fc5861c6 28
jlind6 0:b3d9fc5861c6 29 while(1) {
jlind6 0:b3d9fc5861c6 30 int ret;
jlind6 0:b3d9fc5861c6 31 if(previousID.empty()) {
jlind6 0:b3d9fc5861c6 32 ret = client.get("http://api.supertweet.net/1.1/statuses/mentions_timeline.json?count=1", str, 4096);
jlind6 0:b3d9fc5861c6 33 } else {
jlind6 0:b3d9fc5861c6 34 sprintf(url, "http://api.supertweet.net/1.1/statuses/mentions_timeline.json?since_id=%s\0", previousID.c_str());
jlind6 0:b3d9fc5861c6 35 ret = client.get(url, str, 4096);
jlind6 0:b3d9fc5861c6 36 }
jlind6 0:b3d9fc5861c6 37 if (ret) {
jlind6 0:b3d9fc5861c6 38 printf("Error - ret = %d - HTTP return code = %d\n", ret, client.getHTTPResponseCode());
jlind6 0:b3d9fc5861c6 39 return 1;
jlind6 0:b3d9fc5861c6 40 }
jlind6 0:b3d9fc5861c6 41
jlind6 0:b3d9fc5861c6 42 string tweetInfo(str);
jlind6 0:b3d9fc5861c6 43 string tweetCommand;
jlind6 0:b3d9fc5861c6 44 string tweetSetting;
jlind6 0:b3d9fc5861c6 45 size_t foundStart = string::npos;
jlind6 0:b3d9fc5861c6 46 if(tweetInfo.compare("[]")) {
jlind6 0:b3d9fc5861c6 47 foundStart = tweetInfo.rfind("\"text\":\"@");
jlind6 0:b3d9fc5861c6 48 }
jlind6 0:b3d9fc5861c6 49 size_t foundEnd;
jlind6 0:b3d9fc5861c6 50 while(foundStart != string::npos) {
jlind6 0:b3d9fc5861c6 51 foundStart += 24;
jlind6 0:b3d9fc5861c6 52 foundEnd = tweetInfo.find(" ",foundStart);
jlind6 0:b3d9fc5861c6 53 if(foundEnd != string::npos) {
jlind6 0:b3d9fc5861c6 54 tweetCommand = tweetInfo.substr(foundStart, foundEnd - foundStart);
jlind6 0:b3d9fc5861c6 55 } else {
jlind6 0:b3d9fc5861c6 56 continue;
jlind6 0:b3d9fc5861c6 57 }
jlind6 0:b3d9fc5861c6 58 foundStart = foundEnd + 1;
jlind6 0:b3d9fc5861c6 59 foundEnd = tweetInfo.find("\"",foundStart);
jlind6 0:b3d9fc5861c6 60 tweetSetting = tweetInfo.substr(foundStart, foundEnd - foundStart);
jlind6 0:b3d9fc5861c6 61
jlind6 0:b3d9fc5861c6 62 printf("%s*%s*\n", tweetCommand.c_str(), tweetSetting.c_str());
jlind6 0:b3d9fc5861c6 63
jlind6 0:b3d9fc5861c6 64 if(!tweetCommand.compare("background")) {
jlind6 0:b3d9fc5861c6 65 if(!tweetSetting.compare("blue")) {
jlind6 0:b3d9fc5861c6 66 background = 0x0000FF;
jlind6 0:b3d9fc5861c6 67 squareColor = 0x00FF00;
jlind6 0:b3d9fc5861c6 68 } else if(!tweetSetting.compare("green")) {
jlind6 0:b3d9fc5861c6 69 background = 0x00FF00;
jlind6 0:b3d9fc5861c6 70 squareColor = 0xFF0000;
jlind6 0:b3d9fc5861c6 71 } else if(!tweetSetting.compare("red")) {
jlind6 0:b3d9fc5861c6 72 background = 0xFF0000;
jlind6 0:b3d9fc5861c6 73 squareColor = 0x0000FF;
jlind6 0:b3d9fc5861c6 74 } else {
jlind6 0:b3d9fc5861c6 75 text = "Invalid tweet setting";
jlind6 0:b3d9fc5861c6 76 }
jlind6 0:b3d9fc5861c6 77 } else if(!tweetCommand.compare("write")) {
jlind6 0:b3d9fc5861c6 78 text = tweetSetting;
jlind6 0:b3d9fc5861c6 79 } else if(!tweetCommand.compare("square")) {
jlind6 0:b3d9fc5861c6 80 squareLength = atoi(tweetSetting.c_str());
jlind6 0:b3d9fc5861c6 81 } else {
jlind6 0:b3d9fc5861c6 82 text = "Invalid tweet command";
jlind6 0:b3d9fc5861c6 83 }
jlind6 0:b3d9fc5861c6 84
jlind6 0:b3d9fc5861c6 85 foundStart -= 60;
jlind6 0:b3d9fc5861c6 86 foundStart = tweetInfo.rfind("\"text\":\"@", foundStart);
jlind6 0:b3d9fc5861c6 87 printf("%d*%d*\n", foundStart, string::npos);
jlind6 0:b3d9fc5861c6 88 }
jlind6 0:b3d9fc5861c6 89
jlind6 0:b3d9fc5861c6 90 lcd.cls();
jlind6 0:b3d9fc5861c6 91 lcd.fill(0, 0, 130, 130, background);
jlind6 0:b3d9fc5861c6 92 lcd.background(background);
jlind6 0:b3d9fc5861c6 93 lcd.locate(0, 7);
jlind6 0:b3d9fc5861c6 94 lcd.printf(text.c_str());
jlind6 0:b3d9fc5861c6 95 if(squareLength > 0) {
jlind6 0:b3d9fc5861c6 96 int i;
jlind6 0:b3d9fc5861c6 97 for(int i=65-(squareLength/2); i<65+(squareLength/2);i++) {
jlind6 0:b3d9fc5861c6 98 lcd.pixel(i, 65-(squareLength/2), squareColor);
jlind6 0:b3d9fc5861c6 99 lcd.pixel(i, 65+(squareLength/2), squareColor);
jlind6 0:b3d9fc5861c6 100 }
jlind6 0:b3d9fc5861c6 101 for(i=65-(squareLength/2); i<65+(squareLength/2);i++) {
jlind6 0:b3d9fc5861c6 102 lcd.pixel(65-(squareLength/2), i, squareColor);
jlind6 0:b3d9fc5861c6 103 lcd.pixel(65+(squareLength/2), i, squareColor);
jlind6 0:b3d9fc5861c6 104 }
jlind6 0:b3d9fc5861c6 105 }
jlind6 0:b3d9fc5861c6 106
jlind6 0:b3d9fc5861c6 107 if(tweetInfo.compare("[]")) {
jlind6 0:b3d9fc5861c6 108 foundStart = tweetInfo.find("\"id_str\":\"");
jlind6 0:b3d9fc5861c6 109 foundStart += 10;
jlind6 0:b3d9fc5861c6 110 foundEnd = tweetInfo.find("\"", foundStart);
jlind6 0:b3d9fc5861c6 111 previousID = tweetInfo.substr(foundStart, foundEnd - foundStart);
jlind6 0:b3d9fc5861c6 112 printf("%s\n", previousID.c_str());
jlind6 0:b3d9fc5861c6 113 }
jlind6 0:b3d9fc5861c6 114
jlind6 0:b3d9fc5861c6 115 wait(30);
jlind6 0:b3d9fc5861c6 116 }
jlind6 0:b3d9fc5861c6 117
jlind6 0:b3d9fc5861c6 118 }