main.cpp

00001 #include "mbed.h"
00002 #include "SSD1306.h"
00003 #include "bme280.h"
00004 #include "stdlib.h"
00005 #include "mbed_logo.h"
00006 
00007 #define D_SDA                  P0_0
00008 #define D_SCL                  P0_1
00009 
00010 //Functions
00011 void triggerfall_1();//Button1 falling interrupt function
00012 void triggerrise_1();//Button1 rising interrupt function
00013 void triggerfall_2();//Button1 falling interrupt function
00014 void triggerrise_2();//Button1 rising interrupt function
00015 
00016 float t;
00017 float pr;
00018 int h;
00019 
00020 uint8_t address = 0x78;
00021 
00022 I2C i2c(D_SDA, D_SCL);
00023 
00024 SSD1306 oled(i2c, address);
00025 BME280 bme280;
00026 
00027 //Initiate IO
00028 DigitalOut led0(LED1);
00029 DigitalOut led1(LED2);
00030 DigitalOut led2(P0_20);
00031 DigitalOut led3(P0_21);
00032 DigitalOut led4(P0_22, 0);
00033 DigitalIn  sw1(BUTTON1);
00034 DigitalIn  sw2(BUTTON2);
00035 
00036 //Initiate input interrupts
00037 InterruptIn sw1Press(BUTTON1);
00038 InterruptIn sw2Press(BUTTON2);
00039 
00040 //bme280
00041 void i2cWrite(uint8_t i2c_address, uint8_t *p_data, uint8_t data_size, uint8_t repeated_start)
00042 {
00043 // mbed uses 8-bit addresses, always confusing.
00044     i2c.write(i2c_address<<1,(const char *)p_data,data_size,repeated_start);
00045 }
00046 
00047 void i2cRead(uint8_t i2c_address, uint8_t *p_data, uint8_t data_size)
00048 {
00049 // mbed uses 8-bit addresses, always confusing.
00050     i2c.read(i2c_address<<1,(char *)p_data,data_size);
00051 }
00052 
00053 //ssd1306
00054 void Start_page()
00055 {
00056     int i=0;
00057     oled.writeString(1, 3, "Fight Robot");
00058     while(i<100) {
00059         oled.writeProgressBar(20,40,i);
00060         i++;
00061         wait_ms(10);
00062     }
00063     i = 0;
00064     oled.writeBitmap((uint8_t*) mbed_logo);
00065     while(i<100){
00066         i++;
00067         wait_ms(10);
00068     }
00069 }
00070 void Display_Meteo(float t, float pr, int h)
00071 {
00072 //    sprintf(buf, "%f", t);
00073     oled.writeString(1, 2, "T: ");
00074     oled.printf("%.2f",t);
00075     oled.printf("%s"," C");
00076     oled.writeString(3, 2, "P: ");
00077     oled.printf("%.1f",pr);
00078     oled.printf("%s"," mmHg");
00079     oled.writeString(5, 2, "H: ");
00080     oled.printf("%d",h);
00081     oled.printf("%s"," %");
00082 }
00083 
00084 int main()
00085 {
00086     //Initialise LED output
00087     led0=0;
00088     led1=0;
00089     led2=0;
00090     led3=0;
00091  
00092     //Set falling and rising edge to apppropriate interrup function
00093     sw1Press.fall(&triggerfall_1);
00094     sw1Press.rise(&triggerrise_1);
00095     sw2Press.fall(&triggerfall_2);
00096     sw2Press.rise(&triggerrise_2);
00097 
00098     bme280.begin(BME280_I2C_ADDRESS1);
00099     // Configure for test purposes.
00100     bme280.writeConfigRegister(BME280_STANDBY_500_US,BME280_FILTER_OFF,0);
00101     bme280.writeControlRegisters(BME280_OVERSAMPLING_1X,BME280_OVERSAMPLING_1X,BME280_OVERSAMPLING_1X,BME280_MODE_NORMAL);
00102     Start_page();
00103     oled.clearDisplay();
00104 
00105     while(1) {
00106         led4=!led4;
00107         bme280.read();
00108         t = bme280.temperature();
00109         float p = bme280.pressure()/100;
00110         pr = p*0.750062;
00111         h = bme280.humidity();
00112         Display_Meteo(t, pr, h);
00113         wait_ms(1000);
00114     }
00115 }
00116 //Button1 falling interrupt function
00117 void triggerfall_1()
00118 {
00119 //Toggle LED1
00120     led0=!led0;
00121 }
00122  
00123 //Button1 rising interrupt function
00124 void triggerrise_1()
00125 {
00126 //Toggle LED2
00127     led1=!led1;
00128 }
00129 //Button1 falling interrupt function
00130 void triggerfall_2()
00131 {
00132 //Toggle LED1
00133     led2=!led2;
00134 }
00135  
00136 //Button1 rising interrupt function
00137 void triggerrise_2()
00138 {
00139 //Toggle LED2
00140     led3=!led3;
00141 }