main.cpp

00001 #include "mbed.h" 
00002 #include "rtos.h"
00003 #include "uLCD_4DGL.h"
00004 #include "PinDetect.h"
00005 #include "ens160_i2c.h"
00006 
00007 ENS160 myENS(p9, p10, ENS160_ADDRESS_HIGH);
00008 uLCD_4DGL uLCD(p28,p27,p30); // serial tx, serial rx, reset pin;
00009 PinDetect pb(p8);
00010 Mutex mutex;
00011 
00012 uint8_t volatile aqi;
00013 uint32_t volatile co2,tvoc;
00014 uint8_t volatile current_screen = 0;
00015 
00016 void redrawBG()
00017 {
00018     mutex.lock();
00019     uLCD.color(WHITE);
00020     uLCD.circle(64,64,64,WHITE);
00021     uLCD.filled_circle(64,64,60,BLUE);   
00022     mutex.unlock();
00023 }
00024 
00025 void getData(void const *args)
00026 {
00027     while(1)
00028     {
00029         aqi = myENS.getAQI();
00030         co2 = myENS.getECO2();
00031         tvoc = myENS.getTVOC();
00032         Thread::wait(100);
00033     }
00034 }
00035 
00036 void allScreens()
00037 {
00038     uLCD.text_width(1.75); //4X size text
00039     uLCD.text_height(1.75);
00040     uLCD.locate(6,4);
00041     uLCD.printf("AQI:");
00042     uLCD.printf("%d",aqi);
00043     uLCD.locate(4,7);
00044     uLCD.printf("C02:");
00045     uLCD.printf("%d", co2);
00046     uLCD.printf("ppm");
00047     uLCD.locate(4,10);
00048     uLCD.printf("TVOC:");
00049     uLCD.printf("%d",tvoc);
00050     uLCD.printf("ppb");
00051 }
00052 
00053 void AQI()
00054 {
00055     uLCD.text_width(2); //4X size text
00056     uLCD.text_height(2);
00057     uLCD.locate(3,3);
00058     uLCD.printf("AQI\n");
00059     uLCD.locate(4,4);
00060     uLCD.printf("%d",aqi);
00061 }
00062 
00063 void CO2()
00064 {
00065     uLCD.text_width(2); //4X size text
00066     uLCD.text_height(2);
00067     uLCD.locate(3,3);
00068     uLCD.printf("C02\n");
00069     uLCD.locate(1,4);
00070     uLCD.printf("%d", co2);
00071     uLCD.printf("ppm");
00072 }
00073 
00074 void TVOC()
00075 {
00076     uLCD.text_width(2); //4X size text
00077     uLCD.text_height(2);
00078     uLCD.locate(3,3);
00079     uLCD.printf("TVOC\n");
00080     uLCD.locate(2,4);
00081     uLCD.printf("%d",tvoc);
00082     uLCD.printf("ppb");
00083 }
00084 
00085 void updateScreen()
00086 {
00087     mutex.lock();
00088     switch (current_screen)
00089     {
00090         case 0:
00091             allScreens();
00092             break;
00093         case 1:
00094             AQI();
00095             break;
00096         case 2:
00097             TVOC();
00098             break;
00099         case 3:
00100             CO2();
00101             break;
00102     }
00103     mutex.unlock();
00104 }
00105 
00106 void pb_hit_callback()
00107 {
00108     current_screen = current_screen + 1;
00109     if (current_screen > 3)
00110         current_screen = 0;
00111 }
00112 
00113 int main()
00114 {
00115     pb.mode(PullUp);
00116     wait(.001);
00117     pb.attach_deasserted(&pb_hit_callback);
00118     pb.setSampleFrequency();
00119     Thread t1(getData);
00120     redrawBG();
00121     uint8_t oldScreen = current_screen;
00122     while(1)
00123     {
00124         if (oldScreen != current_screen)
00125         {
00126             oldScreen = current_screen;
00127             redrawBG();
00128         }
00129         updateScreen();
00130         Thread::wait(1000);
00131     }
00132 }