Diff: main.cpp

Revision:

0:fb4d631a5994

Child:

1:da3579be9a8d

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Tue Oct 28 09:02:51 2014 +0000
@@ -0,0 +1,64 @@
+#include "mbed.h"
+#include "RHT03.h" //Include neede to use the RHT03 lib
+
+Serial pc(USBTX, USBRX);
+I2C i2c(p28,p27); //sda=p28. scl=p27
+
+Serial xBee(p9, p10); //xBee pins
+
+int done=0;
+float temp,hum;
+
+RHT03 humtemp(p21); //Initalise the RHT03 (change pin number to the pin its connected to)
+
+DigitalOut lysdiode(p14);
+
+void tickerFunction() {
+    //I2C CO2
+    const char cmd[4] = {0x22,0x00,0x08,0x2A};
+    i2c.write(0xD0, cmd, 4);
+    char data[4] = {0x00,0x00,0x00,0x00};
+    wait_ms(50);
+    i2c.read(0xD1, data, 4);
+    int CO2i2c = (int)data[1]*0x100 + (int)data[2];
+    
+    
+
+    //Print data
+    pc.printf("CO2: %d\n", CO2i2c);
+
+    //Hum & Temp
+    while(!done) { //Loop keeps running until RHT03 is read succesfully
+        wait(2); //Needed to make sure the sensor has time to initalise and so its not polled too quickly
+        if(humtemp.readData() == RHT_ERROR_NONE) done=1; //Request data from the RHT03
+    }
+
+    done = 0;
+    temp = humtemp.getTemperatureC(); //Gets the current temperature in centigrade
+    hum = humtemp.getHumidity(); //Gets the current humidity in percentage
+
+    if (hum > 50 || temp > 23 || CO2i2c > 1000) {
+            lysdiode = 0;
+        } else {
+            lysdiode = 1;    
+        }
+
+//Print data
+    pc.printf("Hum: %0.2f, Temp: %0.2f\n", hum, temp);
+    xBee.printf("xxxx;indeklima;%0.2f;%0.2f;%i\r\n", hum, temp, CO2i2c);
+        
+}
+
+Ticker ticker;
+
+int main()
+{
+
+    pc.printf("Hello\n");
+
+    i2c.frequency(100000); //mBed default frequency = 100kHz = max frequency of CO2 sensor
+    ticker.attach(&tickerFunction, 5.0); //update every 1 sec
+
+    while (1) {
+    }
+}