main.cpp

00001 #include "mbed.h"
00002 #include "MAX14720.h"
00003 #include "MAX30205.h"
00004 #include "BMP280.h"
00005 #include "USBSerial.h"
00006 //#include "MAX30001.h"
00007 //#include "QuadSpiInterface.h"
00008 //#include "S25FS512.h"
00009 //#include "MAX30101.h"
00010 
00011 //Define all I2C addresses
00012 #define MAX30205_I2C_SLAVE_ADDR_TOP (0x92)
00013 #define MAX30205_I2C_SLAVE_ADDR_BOTTOM (0x90)
00014 #define MAX14720_I2C_SLAVE_ADDR (0x54)
00015 #define BMP280_I2C_SLAVE_ADDR (0xEC)
00016 
00017 
00018 #define HVOUT_VOLTAGE 4500 // set to 4500 mV
00019 
00020  // Define with Maxim VID and a Maxim assigned PID, set to version 0x0001 and non-blocking
00021  USBSerial usbSerial(0x0b6a, 0x0100, 0x0001, false);
00022  
00023 // I2C Masters
00024 I2C i2c1(I2C1_SDA, I2C1_SCL);
00025 I2C i2c2(I2C2_SDA, I2C2_SCL);
00026 
00027 // Top local Temperature Sensor
00028 MAX30205 MAX30205_top(&i2c1, MAX30205_I2C_SLAVE_ADDR_TOP);
00029 
00030 // Botttom local Temperature Sensor
00031 MAX30205 MAX30205_bottom(&i2c1, MAX30205_I2C_SLAVE_ADDR_BOTTOM);
00032 
00033 // Barometric Pressure Sensor
00034 BMP280 bmp280_pres(&i2c1, BMP280_I2C_SLAVE_ADDR);
00035 
00036 //PMIC
00037 MAX14720 max14720(&i2c2,MAX14720_I2C_SLAVE_ADDR);
00038 
00039 ///// External Flash
00040 //S25FS512 s25fs512(&quadSpiInterface);
00041 
00042 /// PWM used as fclk for the MAX30001
00043 PwmOut pwmout(P1_7);
00044 
00045 
00046 DigitalOut led(LED1);
00047 
00048 
00049 void turnOff()
00050 {
00051     //write the power down command to PMIC
00052     max14720.shutdown();    
00053 }
00054 int main()
00055 {
00056     
00057     // Override the default value of boostEn to BOOST_ENABLED
00058     max14720.boostEn = MAX14720::BOOST_ENABLED;
00059     // Note that writing the local value does directly affect the part
00060     // The buck-boost regulator will remain off until init is called
00061     max14720.init();
00062     // Turn LED signal on to make buck-boost output visible
00063     max14720.boostSetVoltage(HVOUT_VOLTAGE);
00064     led = 0;
00065     
00066     // Initialise the BMP280
00067     bmp280_pres.init(BMP280::OVERSAMPLING_X16_P, BMP280::OVERSAMPLING_X2_T, BMP280::FILT_4, BMP280::NORMAL_MODE, BMP280::T_62_5);
00068 
00069     //Temperature sensor variables
00070     uint16_t rawTemp_top;
00071     uint16_t rawTemp_bottom ;
00072     float celsius_top, celsius_bottom;
00073     float fahrenheit_top, fahrenheit_bottom;
00074     
00075     //barometric sensor variables
00076     char bmp280_rawData = 0;
00077     float Temp_degC, Press_Pa, Press_Bar;
00078     
00079     
00080     //Endless loop
00081     while(1) 
00082     {
00083         /* Temperature Sensor Settings */
00084         
00085         //Read Temperature
00086         MAX30205_top.readTemperature(&rawTemp_top);
00087         MAX30205_bottom.readTemperature(&rawTemp_bottom);   
00088         // Read BMP280 Temp. and Pressure
00089         bmp280_pres.ReadCompDataRaw(&bmp280_rawData);
00090         bmp280_pres.ToFloat(&bmp280_rawData, &Temp_degC, &Press_Pa);
00091         // Convert to Celsius
00092         celsius_top = MAX30205_top.toCelsius(rawTemp_top);
00093         celsius_bottom = MAX30205_bottom.toCelsius(rawTemp_bottom);
00094         
00095         // Convert to Fahrenheit
00096         fahrenheit_top = MAX30205_top.toFahrenheit(celsius_top);
00097         fahrenheit_bottom = MAX30205_bottom.toFahrenheit(celsius_bottom);
00098         
00099         /* Barometric Sensor Settings */
00100     
00101         Press_Bar = Press_Pa / 100000;
00102 
00103         /* Printing various sensor values */
00104         usbSerial.printf("***** MAX30205 Temperature Sensor Reading *****\n\r");
00105         usbSerial.printf("Top Temperature: %.2f\370 C\n\rBottom Temperature: %.2f\370 C \n\rTop Temperature in Farenheit: %.2f\370 F\n\rBottom Temperature in Farenheit %.2f\370 F\n\n\r", celsius_top, celsius_bottom, fahrenheit_top, fahrenheit_bottom);
00106         
00107         usbSerial.printf("***** BMP280 Barometric Sensor Reading *****\n\r");
00108         usbSerial.printf("Temp_degC : %.2f , Press_Bar is %.2f , Press_pa is %.2f\n\n\r",Temp_degC, Press_Bar, Press_Pa);
00109         
00110         usbSerial.printf("-------------------------------------------------\n\n\n\r");
00111 
00112         wait(0.2);
00113         
00114     
00115        
00116     }
00117 }