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Dependencies:   mbed

main.cpp@5:3ba375562c74, 2020-05-01 (annotated)

Committer:
christodoulos
Date:
Fri May 01 14:30:55 2020 +0000
Revision:
5:3ba375562c74
Parent:
3:3d51f8870e91 
CCS811 (NOT USED in POCBreath_V2_smd_commercial)

Who changed what in which revision?

UserRevisionLine numberNew contents of line
christodoulos 0:d034cdad5b6d 1 #include "mbed.h"
christodoulos 5:3ba375562c74 2
christodoulos 5:3ba375562c74 3 Serial pc(PC_12, PD_2);
christodoulos 5:3ba375562c74 4 I2C i2c(PC_1,PC_0);
christodoulos 5:3ba375562c74 5 DigitalOut wake(PB_2);
christodoulos 0:d034cdad5b6d 6
christodoulos 5:3ba375562c74 7 uint16_t eco2, tvoc;
christodoulos 0:d034cdad5b6d 8
christodoulos 5:3ba375562c74 9
mehrnaz 2:ef98576cd67b 10 int main()
christodoulos 0:d034cdad5b6d 11 {
christodoulos 5:3ba375562c74 12 int addr=0xB4;
christodoulos 5:3ba375562c74 13 wake=0;
christodoulos 5:3ba375562c74 14 // FIRST NEED TO INIT TO APP_START
christodoulos 5:3ba375562c74 15 //CHECK SYSTEM 1, PUT IN APP MODE, CECK SYSTEM 2, SET MODE
mehrnaz 3:3d51f8870e91 16
christodoulos 5:3ba375562c74 17 char wID[1];
christodoulos 5:3ba375562c74 18 wID[0]=0x20;
christodoulos 5:3ba375562c74 19 char rID[1];
mehrnaz 3:3d51f8870e91 20
christodoulos 5:3ba375562c74 21 i2c.write(addr,wID,1);
christodoulos 5:3ba375562c74 22 i2c.read(addr,rID,1);
christodoulos 5:3ba375562c74 23 pc.printf("ID: %x\n",rID[0]);
christodoulos 5:3ba375562c74 24 wait(1);
christodoulos 5:3ba375562c74 25
christodoulos 5:3ba375562c74 26 char wS[1];
christodoulos 5:3ba375562c74 27 wS[0]=0x00;
christodoulos 5:3ba375562c74 28 char rS[1];
mehrnaz 3:3d51f8870e91 29
christodoulos 5:3ba375562c74 30 i2c.write(addr,wS,1);
christodoulos 5:3ba375562c74 31 i2c.read(addr,rS,1);
christodoulos 5:3ba375562c74 32 pc.printf("Status before init: %x\n",rS[0]);
christodoulos 5:3ba375562c74 33 wait(1);
mehrnaz 3:3d51f8870e91 34
christodoulos 5:3ba375562c74 35 char wInit[2];
christodoulos 5:3ba375562c74 36 wInit[0]=0xF4;
christodoulos 5:3ba375562c74 37 // wInit[1]=0x00;
christodoulos 5:3ba375562c74 38 // char rInit[1];
christodoulos 5:3ba375562c74 39
christodoulos 5:3ba375562c74 40 i2c.write(addr,wInit,1);
christodoulos 5:3ba375562c74 41 wait(1);
christodoulos 5:3ba375562c74 42
christodoulos 5:3ba375562c74 43 i2c.write(addr,wS,1);
christodoulos 5:3ba375562c74 44 i2c.read(addr,rS,1);
christodoulos 5:3ba375562c74 45 pc.printf("Status after init: %x\n",rS[0]);
christodoulos 5:3ba375562c74 46 wait(2);
christodoulos 5:3ba375562c74 47
christodoulos 5:3ba375562c74 48 char wMode[2];
christodoulos 5:3ba375562c74 49 wMode[0]=0x01;
christodoulos 5:3ba375562c74 50 wMode[1]=0x40;
christodoulos 5:3ba375562c74 51 char rMode[1];
christodoulos 5:3ba375562c74 52
christodoulos 5:3ba375562c74 53 i2c.write(addr,wMode,2);
christodoulos 5:3ba375562c74 54 i2c.read(addr,rMode,1);
christodoulos 5:3ba375562c74 55 pc.printf("Mode: %x\n",rMode[0]);
christodoulos 5:3ba375562c74 56 wait(1);
christodoulos 5:3ba375562c74 57
christodoulos 5:3ba375562c74 58 char wE[1];
christodoulos 5:3ba375562c74 59 wE[0]=0xE0;
christodoulos 5:3ba375562c74 60 char rE[1];
christodoulos 5:3ba375562c74 61
christodoulos 5:3ba375562c74 62 char wData[1];
christodoulos 5:3ba375562c74 63 wData[0]=0x02;
christodoulos 5:3ba375562c74 64 char rData[6];
christodoulos 5:3ba375562c74 65
christodoulos 5:3ba375562c74 66
christodoulos 5:3ba375562c74 67 while(1){
christodoulos 5:3ba375562c74 68 i2c.write(addr,wData,1); //co2 and tvoc
christodoulos 5:3ba375562c74 69 i2c.read(addr,rData,6);
christodoulos 5:3ba375562c74 70
christodoulos 5:3ba375562c74 71 int CO2=(rData[0]<<8)+rData[1];
christodoulos 5:3ba375562c74 72 int TVOC=(rData[2]<<8)+rData[3];
christodoulos 5:3ba375562c74 73
christodoulos 5:3ba375562c74 74
christodoulos 5:3ba375562c74 75 pc.printf("CO2: %i ppm, TVOC: %i ppb,Status: %x, Error: %x\n",CO2,TVOC,rData[4],rData[5]);
christodoulos 5:3ba375562c74 76 wait(0.1);
mehrnaz 2:ef98576cd67b 77 }
christodoulos 5:3ba375562c74 78
mehrnaz 2:ef98576cd67b 79 }