Benjamin Juul / Mbed 2 deprecated mbed_indeklima

afas

Dependencies:   RHT03 mbed

main.cpp@0:fb4d631a5994, 2014-10-28 (annotated)

Committer:
201209650
Date:
Tue Oct 28 09:02:51 2014 +0000
Revision:
0:fb4d631a5994
bde

Who changed what in which revision?

UserRevisionLine numberNew contents of line
201209650 0:fb4d631a5994 1 #include "mbed.h"
201209650 0:fb4d631a5994 2 #include "RHT03.h" //Include neede to use the RHT03 lib
201209650 0:fb4d631a5994 3
201209650 0:fb4d631a5994 4 Serial pc(USBTX, USBRX);
201209650 0:fb4d631a5994 5 I2C i2c(p28,p27); //sda=p28. scl=p27
201209650 0:fb4d631a5994 6
201209650 0:fb4d631a5994 7 Serial xBee(p9, p10); //xBee pins
201209650 0:fb4d631a5994 8
201209650 0:fb4d631a5994 9 int done=0;
201209650 0:fb4d631a5994 10 float temp,hum;
201209650 0:fb4d631a5994 11
201209650 0:fb4d631a5994 12 RHT03 humtemp(p21); //Initalise the RHT03 (change pin number to the pin its connected to)
201209650 0:fb4d631a5994 13
201209650 0:fb4d631a5994 14 DigitalOut lysdiode(p14);
201209650 0:fb4d631a5994 15
201209650 0:fb4d631a5994 16 void tickerFunction() {
201209650 0:fb4d631a5994 17 //I2C CO2
201209650 0:fb4d631a5994 18 const char cmd[4] = {0x22,0x00,0x08,0x2A};
201209650 0:fb4d631a5994 19 i2c.write(0xD0, cmd, 4);
201209650 0:fb4d631a5994 20 char data[4] = {0x00,0x00,0x00,0x00};
201209650 0:fb4d631a5994 21 wait_ms(50);
201209650 0:fb4d631a5994 22 i2c.read(0xD1, data, 4);
201209650 0:fb4d631a5994 23 int CO2i2c = (int)data[1]*0x100 + (int)data[2];
201209650 0:fb4d631a5994 24
201209650 0:fb4d631a5994 25
201209650 0:fb4d631a5994 26
201209650 0:fb4d631a5994 27 //Print data
201209650 0:fb4d631a5994 28 pc.printf("CO2: %d\n", CO2i2c);
201209650 0:fb4d631a5994 29
201209650 0:fb4d631a5994 30 //Hum & Temp
201209650 0:fb4d631a5994 31 while(!done) { //Loop keeps running until RHT03 is read succesfully
201209650 0:fb4d631a5994 32 wait(2); //Needed to make sure the sensor has time to initalise and so its not polled too quickly
201209650 0:fb4d631a5994 33 if(humtemp.readData() == RHT_ERROR_NONE) done=1; //Request data from the RHT03
201209650 0:fb4d631a5994 34 }
201209650 0:fb4d631a5994 35
201209650 0:fb4d631a5994 36 done = 0;
201209650 0:fb4d631a5994 37 temp = humtemp.getTemperatureC(); //Gets the current temperature in centigrade
201209650 0:fb4d631a5994 38 hum = humtemp.getHumidity(); //Gets the current humidity in percentage
201209650 0:fb4d631a5994 39
201209650 0:fb4d631a5994 40 if (hum > 50 || temp > 23 || CO2i2c > 1000) {
201209650 0:fb4d631a5994 41 lysdiode = 0;
201209650 0:fb4d631a5994 42 } else {
201209650 0:fb4d631a5994 43 lysdiode = 1;
201209650 0:fb4d631a5994 44 }
201209650 0:fb4d631a5994 45
201209650 0:fb4d631a5994 46 //Print data
201209650 0:fb4d631a5994 47 pc.printf("Hum: %0.2f, Temp: %0.2f\n", hum, temp);
201209650 0:fb4d631a5994 48 xBee.printf("xxxx;indeklima;%0.2f;%0.2f;%i\r\n", hum, temp, CO2i2c);
201209650 0:fb4d631a5994 49
201209650 0:fb4d631a5994 50 }
201209650 0:fb4d631a5994 51
201209650 0:fb4d631a5994 52 Ticker ticker;
201209650 0:fb4d631a5994 53
201209650 0:fb4d631a5994 54 int main()
201209650 0:fb4d631a5994 55 {
201209650 0:fb4d631a5994 56
201209650 0:fb4d631a5994 57 pc.printf("Hello\n");
201209650 0:fb4d631a5994 58
201209650 0:fb4d631a5994 59 i2c.frequency(100000); //mBed default frequency = 100kHz = max frequency of CO2 sensor
201209650 0:fb4d631a5994 60 ticker.attach(&tickerFunction, 5.0); //update every 1 sec
201209650 0:fb4d631a5994 61
201209650 0:fb4d631a5994 62 while (1) {
201209650 0:fb4d631a5994 63 }
201209650 0:fb4d631a5994 64 }