main.cpp

00001 #include "mbed.h"
00002 #include "WebUI.h"
00003 #include "Serial.h"
00004 #include "Sampling.h"
00005 #include "LCD.h"
00006 #include "SDCard.h"
00007 #include "SDBlockDevice.h"
00008 #include "Logging.h"
00009 
00010 //Hardware setup
00011 BMP280 sensor(D14, D15);        //Enviromental sensor
00012 AnalogIn LDRSensor(A0);         //LDR sensor      
00013 DigitalOut SamplingLED(PB_10);  //LED to indicate sampling
00014              
00015 //SD Card devices
00016 InterruptIn SD_WP(PE_10);
00017 InterruptIn UserButton(USER_BUTTON);
00018 SDBlockDevice sd(PB_5, D12, D13, D10);
00019 DigitalOut GreenLED(PB_11);
00020 
00021 //Serial interface
00022 Serial PC(USBTX, USBRX);    
00023 
00024 //LCD card object. LCD pins and two timeset buttons
00025 ENVDISPLAY lcd(D9, D8, D7, D6, D4, D2,PE_12, PE_14);  
00026 
00027 //Forward Declaration of Self Test
00028 void POST(void); 
00029 
00030 int main()
00031 {
00032     //Initialise devices
00033     firstSample = true; //Set only at start of program
00034     logging = false;
00035     
00036     //Hardware Self Test
00037     POST();
00038 
00039     //Initialise interrupts and times
00040     SerialStart();        //Start serial comms
00041     lcd.Start();          //Start LCD functionality
00042     SDCardInit();         //Start SDCard functionality
00043     WebUISetup();         //Start Web Interface
00044     ConfigThreadsAndIR(); //Start sampling
00045 
00046 
00047     //Run
00048     while (true) {
00049         if (NewEnvSample && NewLDRSample) {
00050             //New samples have been captured and are in the register
00051             IncrementIndex();       //Index for buffers
00052             NewEnvSample = false;   //Reset sampling threads
00053             NewLDRSample = false;
00054 
00055             //Push latest samples to LCD.
00056             lcd.UpdateData(tempReadings[currentIndex],presReadings[currentIndex],LDRReadings[currentIndex],timeReadings[currentIndex]);
00057             LogEvent(Log_IndexInc);   //Log position
00058         }
00059         if (logging) {
00060             //Grab from mailbox and print to serial
00061             string QueueData = CheckLoggingQueue(); //Get the data from queue
00062             char char_array[QueueData.length()+1];  //Char array for message
00063             strcpy(char_array, QueueData.c_str());  //String must be converted to char array for printf
00064             PC.printf("%s\n\r",char_array);
00065         }
00066     }
00067 }
00068 
00069 void POST(void)
00070 {
00071     printf("------Self Test------\n\r");
00072     lcd.POST();
00073     printf("LCD Test Done\n\r");
00074     printf("SDCard ejected?: %d\n\r",SD_WP.read());
00075     printf("SDCard Dismount Button: %d\n\r",UserButton.read());
00076     printf("Flashing SDCard Status LEDs\n\r");
00077     int i;
00078     for (i=0;i<5;i++){  //Flash the LEDs
00079         GreenLED = 1;
00080         SDCardStatusLED = 0;
00081         Thread::wait(200);
00082         GreenLED = 0;
00083         SDCardStatusLED = 1;
00084         Thread::wait(200);
00085     }
00086     SDCardStatusLED = 0;
00087     printf("Temp: %5.1fC\n\r",sensor.getTemperature());   //Print temperature
00088     printf("Pres: %5.1fmBar\n\r",sensor.getPressure());   //Print Pressure
00089     printf("LDR: %f\n\r",LDRSensor);  //Print Light Level
00090     printf("Flashing Sample LED\n\r");
00091     for (i=0;i<5;i++){  //Flash the LED
00092         SamplingLED = 1;
00093         Thread::wait(200);
00094         SamplingLED = 0;
00095         Thread::wait(200);
00096     }
00097     SamplingLED = 0;
00098     printf("------Self Test Complete------\n\r");
00099     Thread::wait(1000);
00100 }