main.cpp

00001 #include "mbed.h"
00002 #include "MQ2.h"
00003 
00004 Serial pc(USBTX, USBRX); // tx, rx
00005 MQ2 mq2(A1);                                                                    // Analog Port to read from
00006 
00007 int main() {
00008     pc.baud(115200);
00009     mq2.begin();                                                                // 'Calibrate' sensor
00010     MQ2_data_t MQ2_data;                                                        // Structure to hold data.
00011     while (true) {
00012         pc.printf("CO PPM: %.0f\r\n",mq2.readCO());                             // Performs a one shot read of CO
00013         pc.printf("Smoke PPM: %.0f\r\n",mq2.readSmoke());                       // Performs a one shot read of Smoke
00014         pc.printf("LPG PPM: %.0f\r\n",mq2.readLPG());                           // Performs a one shot read of LPG
00015         wait(1);
00016         pc.printf("................................\r\n");                      
00017         mq2.read(&MQ2_data);                                                    // Alt reading method, reading to struct
00018         pc.printf("CO PPM: %.0f\r\n",MQ2_data.co);                              // Return data from strut
00019         pc.printf("Smoke PPM: %.0f\r\n",MQ2_data.smoke);                        // Return data from strut
00020         pc.printf("LPG PPM: %.0f\r\n",MQ2_data.lpg);                            // Return data from strut
00021         pc.printf("................................\r\n");                      
00022         wait(1);
00023     }
00024 }
00025