main.cpp

00001 //WavePlayer_HelloWorld4180
00002 //internet_clock
00003 
00004 #include "mbed.h"
00005 #include "SDFileSystem.h"
00006 #include "wave_player.h"
00007 #include "EthernetInterface.h"
00008 #include "NTPClient.h"
00009 #include "uLCD_4DGL.h"
00010 #include "rtos.h"
00011 #include "PinDetect.h"
00012 
00013 //pinouts
00014 SDFileSystem sd(p11, p12, p13, p14, "sd"); //SD card
00015 AnalogOut DACout(p18);
00016 wave_player waver(&DACout);
00017 PinDetect snooze(p19);  //snooze button
00018 PinDetect off(p20);     //turn alarm off
00019 DigitalOut myled1(LED1);
00020 DigitalOut myled2(LED2);
00021 DigitalOut myled3(LED3);
00022 
00023 // Parameters
00024 char* domain_name = "0.uk.pool.ntp.org";
00025 int port_number = 123;
00026 
00027 // Networking
00028 EthernetInterface eth;
00029 NTPClient ntp_client;
00030 
00031 // Graphic LCD - TX, RX, and RES pins
00032 uLCD_4DGL uLCD(p28,p27,p29);
00033 
00034 #define snoozeTime 10
00035 
00036 //global variables
00037 time_t ct_time;
00038 // Base alarm time-24 hour clock
00039 int baseAlarmHour = 0; //0-23
00040 int baseAlarmMin = 0;
00041 // Current alarm time
00042 int curAlarmHour = 18; //0-23
00043 int curAlarmMin = 9;
00044 
00045 //time thread
00046 void time_thread(void const *args)
00047 {
00048     char time_buffer[80];
00049     // Loop and update clock
00050     while (1) {
00051         uLCD.locate(0, 1);
00052         ct_time = time(NULL);
00053         strftime(time_buffer, 80, "    %a %b %d\n    %T %p %z\n    %Z\n", \
00054                  localtime(&ct_time));
00055         uLCD.printf("    UTC/GMT:\n%s", time_buffer);
00056         Thread::wait(100);
00057     }
00058 }
00059 
00060 //pushbutton (p19)
00061 void snooze_hit_callback (void)
00062 {
00063     myled1 = !myled1;
00064     time_t newtime;
00065     struct tm * timeinfo;
00066     newtime = ct_time + snoozeTime;
00067 //time (&newtime);
00068     timeinfo = localtime (&newtime);
00069     curAlarmMin = timeinfo->tm_min;
00070     curAlarmHour = timeinfo->tm_hour;
00071 }
00072 
00073 void off_hit_callback (void)
00074 {
00075     myled2 = !myled2;
00076 }
00077 
00078 void play_file()
00079 {
00080     FILE *wave_file;
00081     printf("\n\n\nHello, wave world!\n");
00082     wave_file=fopen("/sd/bob.wav","r");
00083     waver.play(wave_file);
00084     fclose(wave_file);
00085 }
00086 
00087 void timeCompare()
00088 {
00089     struct tm * timeinfo;
00090     timeinfo = localtime (&ct_time);
00091     if (timeinfo->tm_min == curAlarmMin && timeinfo->tm_hour == curAlarmHour) {
00092         //playing = true;
00093         play_file();
00094         myled3 = true;
00095     }
00096 }
00097 
00098 int main()
00099 {
00100     snooze.mode(PullUp);
00101     off.mode(PullUp);
00102     wait(0.01);
00103     snooze.attach_deasserted(&snooze_hit_callback);
00104     off.attach_deasserted(&off_hit_callback);
00105     snooze.setSampleFrequency();
00106     off.setSampleFrequency();
00107 
00108 
00109 
00110     // Initialize LCD
00111     uLCD.baudrate(115200);
00112     uLCD.background_color(BLACK);
00113     uLCD.cls();
00114 
00115     // Connect to network and wait for DHCP
00116     uLCD.locate(0,0);
00117     uLCD.printf("Getting IP Address\n");
00118     eth.init();
00119     if ( eth.connect(60000) == -1 ) {
00120         uLCD.printf("ERROR: Could not\nget IP address");
00121         return -1;
00122     }
00123     uLCD.printf("IP address is \n%s\n\n",eth.getIPAddress());
00124     Thread::wait(1000);
00125 
00126     // Read time from server
00127     uLCD.printf("Reading time...\n\r");
00128     ntp_client.setTime(domain_name, port_number);
00129     uLCD.printf("Time set\n");
00130     Thread::wait(2000);
00131     eth.disconnect();
00132 
00133     // Reset LCD
00134     uLCD.background_color(WHITE);
00135     uLCD.textbackground_color(WHITE);
00136     uLCD.color(RED);
00137     uLCD.cls();
00138     uLCD.text_height(2);
00139 
00140     Thread thread_time(time_thread);
00141     while(!myled3) {
00142         timeCompare();
00143         Thread::wait(100);
00144     }
00145 
00146 }