Diff: main.cpp

Revision:

3:6d8574d8c9c1

Parent:

2:b60cb847489c

Child:

4:de41ec16d765

--- a/main.cpp	Fri Feb 21 09:36:12 2014 +0000
+++ b/main.cpp	Wed Aug 13 22:39:15 2014 +0000
@@ -1,12 +1,129 @@
 #include "mbed.h"
+#include "ADXL345_I2C.h"
+
 
-DigitalOut myled(LED1);
+//#define LED
+//#define ACCEL 
+//#define LIGHT_SENSOR 
+//#define WATER_SENSOR
+//#define GAS_SENSOR
+#define TEMP_SENSOR
 
+ 
+AnalogIn temp_sensor(A0);     
+AnalogIn analog_light_sensor_read(A1); 
+DigitalIn water_sensor(A2);
+AnalogIn gas_sensor(A3);
+DigitalOut my_led(D7);
+ADXL345_I2C accelerometer(D14, D15);
+
+        
 int main() {
-    while(1) {
-        myled = 1; // LED is ON
+    
+    float vol;
+    float Rsensor;
+    int gas_sensor_value;
+    int sound_sensor_value;
+    int adc_scale = 4096; 
+    int readings[3] = {0, 0, 0};
+    int sensorValue;
+    int B = 3975;
+    float resistance; 
+    float temperature;
+    float temperature_f;  
+    char amb_temp[6];
+    int a;
+    
+#ifdef ACCEL     
+    printf("Starting ADXL345 test...\n\r");
+    wait(.001);
+    printf("Device ID is: 0x%02x\n\r", accelerometer.getDeviceID());
+    wait(.001);
+    
+    // These are here to test whether any of the initialization fails. It will print the failure
+    if (accelerometer.setPowerControl(0x00))
+    {
+         printf("didn't intitialize power control\n"); 
+         return 0;  
+    }
+    
+    //Full resolution, +/-16g, 4mg/LSB.
+    wait(.001);
+     
+    if(accelerometer.setDataFormatControl(0x0B))
+    {
+        printf("didn't set data format\n");
+        return 0;  
+    }
+    wait(.001);
+     
+     //3.2kHz data rate.
+    if(accelerometer.setDataRate(ADXL345_3200HZ))
+    {
+        printf("didn't set data rate\n");
+        return 0;    
+    }
+    wait(.001);
+     
+    //Measurement mode.     
+    if(accelerometer.setPowerControl(MeasurementMode)) 
+    {
+        printf("didn't set the power control to measurement\n"); 
+        return 0;   
+    } 
+#endif
+    
+    while(1) 
+    {
+#ifdef LED        
+        my_led = 1; // LED is ON
         wait(0.2); // 200 ms
-        myled = 0; // LED is OFF
+        my_led = 0; // LED is OFF
         wait(1.0); // 1 sec
+#endif
+
+#ifdef WATER_SENSOR        
+        printf("water_sensor: %d \n\r", water_sensor.read());   
+        wait(0.5);                  
+#endif
+
+#ifdef GAS_SENSOR        
+        gas_sensor_value = gas_sensor.read_u16();
+        printf("gas_sensor_value: 0x%X \n\r", gas_sensor_value);          
+
+        vol = (float)gas_sensor_value/adc_scale*5.0;
+        printf("gas vol: %f \n\r", vol);  
+        wait(1);          
+#endif
+
+#ifdef ACCEL
+        accelerometer.getOutput(readings);     
+        wait(0.1); // 100 ms        
+            
+        /* x-axis, y-axis and z-axis */        
+        printf("%d, %d, %d\n\r", (int16_t)readings[0], (int16_t)readings[1], (int16_t)readings[2]);
+#endif
+
+#ifdef LIGHT_SENSOR
+        sensorValue = analog_light_sensor_read.read_u16();               
+        Rsensor=(float)(adc_scale-sensorValue)*10/sensorValue;
+        printf("Light Sensor Analog Reading is 0x%X = %d   ", sensorValue, sensorValue);        
+        printf("The sensor resistance is %f  \n\n\r", Rsensor);  
+        wait(1); // 1s  
+#endif
+      
+#ifdef TEMP_SENSOR
+        a = temp_sensor.read_u16();
+               
+        resistance = (float)(adc_scale-a)*10000/a; //get the resistance of the sensor;              
+        temperature = 1/(log(resistance/10000)/B+1/298.15)-273.15;  //convert to temperature via datasheet ;        
+        temperature_f = (1.8 * temperature) + 32.0;
+        sprintf(amb_temp, "%0.2f", temperature_f);  
+        
+        printf("Temp Sensor Analog Reading is 0x%X = %d   ", a, a);         
+        printf("Current Temperature: %f C  %f F \n\r", temperature, temperature_f); 
+        wait(1); // 1s          
+#endif      
+              
     }
 }