Diff: main.cpp

Revision:

0:9f3c885e7d4e

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Tue Jul 17 04:40:44 2018 +0000
@@ -0,0 +1,26 @@
+#include "mbed.h"
+#include "MQ4.h"
+
+Serial pc(USBTX, USBRX); // tx, rx
+MQ4 mq4(p18);                                                                    // Analog Port to read from
+
+int main() {
+    pc.baud(9600);
+    mq4.begin();                                                                // 'Calibrate' sensor
+    MQ4_data_t MQ4_data;                                                        // Structure to hold data.
+    pc.printf("Ro calculated: %f\r\n",mq4.get_Ro()); 
+    while (true) {
+        pc.printf("H2 PPM: %.0f\r\n",mq4.readH2());                             // Performs a one shot read of CO
+        pc.printf("CH4 PPM: %.0f\r\n",mq4.readCH4());                       // Performs a one shot read of Smoke
+        pc.printf("LPG PPM: %.0f\r\n",mq4.readLPG());                           // Performs a one shot read of LPG
+        wait(1);
+        pc.printf("................................\r\n");                      
+        mq4.read(&MQ4_data);                                                    // Alt reading method, reading to struct
+        pc.printf("CO PPM: %.0f\r\n",MQ4_data.h2);                              // Return data from strut
+        pc.printf("Smoke PPM: %.0f\r\n",MQ4_data.ch4);                        // Return data from strut
+        pc.printf("LPG PPM: %.0f\r\n",MQ4_data.lpg);                            // Return data from strut
+        pc.printf("................................\r\n");                      
+        wait(1);
+    }
+}
+