main.cpp

00001 #include "mbed.h"
00002 #include "GPS.h"
00003 #include "Servo.h"
00004 #include "PinDetect.h"
00005 #include "nRF24L01P.h"
00006 
00007 nRF24L01P myTransceiver(p5, p6, p7, p8, p9, p10);    // mosi, miso, sck, csn, ce, irq
00008 
00009 Serial pc(USBTX, USBRX);
00010 GPS gps(p13, p14);
00011 PinDetect pb1(p19);
00012 PinDetect pb2(p20);
00013 Servo servo(p21);
00014 
00015 Serial esp(p28, p27); // tx, rx
00016 DigitalOut reset(p26);
00017 DigitalOut led1(LED1);
00018 DigitalOut led2(LED2);
00019 DigitalOut led3(LED3);
00020 Timer t;
00021 
00022 bool drunk = true;
00023 
00024 int  count,ended,timeout,killSwitch = 0,Sig = 0;
00025 char buf[2024];
00026 char snd[1024];
00027  
00028 char ssid[32] = "AndroidAP";     // enter WiFi router ssid inside the quotes
00029 char pwd [32] = "ece4180a"; // enter WiFi router password inside the quotes
00030 
00031 void SendCMD(),getreply(),ESPconfig(),ESPsetbaudrate(),ESPServerSetup();
00032 
00033 void signal(void){
00034     Sig = 1;
00035 }
00036 
00037 void kill_switch(void){
00038     if (killSwitch == 0){
00039         killSwitch = 1;
00040     }
00041 }
00042 
00043 int main() {
00044     pb1.mode(PullUp);
00045     pb2.mode(PullUp);
00046     
00047     reset=0; //hardware reset for 8266
00048     pc.baud(9600);
00049     wait(0.5);
00050     reset=1;
00051     
00052     esp.baud(9600);
00053     
00054     pb1.attach_deasserted(&kill_switch);
00055     pb1.setSampleFrequency();
00056     
00057     pb2.attach_deasserted(&signal);
00058     pb2.setSampleFrequency();
00059     
00060     led1 = 0;
00061     led2 = 0;
00062     servo = 0;
00063     while (1){
00064         if (killSwitch == 1){
00065             led2 = 1;
00066             led1 = 1;
00067             servo = 1.0;
00068             ESPconfig();
00069             killSwitch = 2;
00070             led1 = 0;
00071         }
00072         if (Sig){
00073             if(drunk){
00074                 servo = 1.0;
00075                 led3 = 1;
00076                 //wait(120);
00077                 if (drunk)
00078                     ESPServerSetup();
00079             }
00080             else{
00081                 servo = 0;
00082                 led2 = 0;
00083             }
00084             killSwitch = 0;
00085             Sig = 0;
00086         }
00087         sleep();
00088     }
00089 }
00090 
00091 void ESPsetbaudrate()
00092 {
00093     strcpy(snd, "AT+CIOBAUD=115200\r\n");   // change the numeric value to the required baudrate
00094     SendCMD();
00095 }
00096 
00097 void ESPconfig()
00098 {
00099     pc.printf("---------- Reset & get Firmware ----------\r\n");
00100     strcpy(snd,"node.restart()\r\n");
00101     SendCMD();
00102     timeout=5;
00103     getreply();
00104     
00105     wait(2);
00106  
00107     pc.printf("\n---------- Connecting to AP ----------\r\n");
00108     pc.printf("ssid = %s   pwd = %s\r\n",ssid,pwd);
00109     strcpy(snd, "wifi.sta.config(\"");
00110     strcat(snd, ssid);
00111     strcat(snd, "\",\"");
00112     strcat(snd, pwd);
00113     strcat(snd, "\")\r\n");
00114     SendCMD();
00115     timeout=10;
00116     getreply();
00117     pc.printf(buf);
00118  
00119     wait(5);
00120  
00121     pc.printf("\n---------- Get IP's ----------\r\n");
00122     strcpy(snd, "print(wifi.sta.getip())\r\n");
00123     SendCMD();
00124     timeout=3;
00125     getreply();
00126     pc.printf(buf);
00127  
00128     wait(1);       
00129 }
00130 
00131 void ESPServerSetup(){
00132     while (!gps.sample()){
00133         wait(0.1);
00134     }
00135     pc.printf("\n---------- Setting up http server ----------\r\n");
00136         strcpy(snd, "srv=net.createServer(net.TCP)\r\n");
00137         SendCMD();
00138         wait(0.2);
00139         strcpy(snd, "srv:listen(80,function(conn)\r\n");
00140         SendCMD();
00141         wait(0.2);
00142         strcpy(snd, "conn:on(\"receive\",function(conn,payload)\r\n");
00143         SendCMD();
00144         wait(0.2);
00145         strcpy(snd, "print(payload)\r\n");
00146         SendCMD();
00147         wait(0.2);
00148         strcpy(snd, "conn:send(\"<!DOCTYPE html>\")\r\n");
00149         SendCMD();
00150         wait(0.2);
00151         strcpy(snd, "conn:send(\"<html>\")\r\n");
00152         SendCMD();
00153         wait(0.2);
00154         strcpy(snd, "conn:send(\"<h1> Come Pick Me up, I'm Drunk</h1>\")\r\n");
00155         SendCMD();
00156         wait(0.2);
00157         gps.sample();
00158         int n = sprintf(snd, "conn:send(\"<h2>I'm at Longitude: %f degrees %c, Latitude %f degrees %c</h2>\")\r\n", gps.longitude, gps.ew, gps.latitude, gps.ns);
00159         SendCMD();
00160         wait(0.2);
00161         strcpy(snd, "conn:send(\"</html>\")\r\n");
00162         SendCMD();
00163         wait(0.2);
00164         strcpy(snd, "end)\r\n");
00165         SendCMD();
00166         wait(0.2);
00167         strcpy(snd, "conn:on(\"sent\",function(conn) conn:close() end)\r\n");
00168         SendCMD();
00169         wait(0.2);
00170         strcpy(snd, "end)\r\n");
00171         SendCMD();
00172         wait(0.2);
00173         timeout=5;
00174         getreply();
00175         pc.printf(buf);
00176         pc.printf("\r\nDONE");
00177 }
00178 
00179 void SendCMD()
00180 {
00181     esp.printf("%s", snd);
00182 }
00183  
00184 void getreply()
00185 {
00186     memset(buf, '\0', sizeof(buf));
00187     t.start();
00188     ended=0;
00189     count=0;
00190     while(!ended) {
00191         if(esp.readable()) {
00192             buf[count] = esp.getc();
00193             count++;
00194         }
00195         if(t.read() > timeout) {
00196             ended = 1;
00197             t.stop();
00198             t.reset();
00199         }
00200     }
00201 }