Diff: main.cpp

Revision:

2:5e957dcc94bc

Parent:

1:0624feb5a279

Child:

3:3023306be214

--- a/main.cpp	Tue Feb 11 22:51:15 2020 +0000
+++ b/main.cpp	Sun Mar 08 04:08:55 2020 +0000
@@ -1,4 +1,6 @@
 #include "mbed.h"
+//#include "Mlx90615.h"
+ 
 
 
 /*  for the button press device should start reading, then it should stop the loop for button press  */
@@ -10,53 +12,204 @@
  
 
 I2C i2c(PB_11,PB_10);   //sda,scl
+//SDFileSystem sd(PA_7, PA_6, PA_5, PA_4, "sd"); //// mosi, miso, sclk, cs, the pinout on the mbed Cool Components workshop board  stm32F4
+
+//////////////MLX90615////////////////////////////////////////////////////
+
+const int dev_add_W                  = 0xB6 ; // address with write(0) bit at last////Address must be bit shifted left already shifted, 
+const int  reg_To_address            = 0x27 ;//address of temperature of the object pointed 
+const int  reg_Ta_address            = 0x26 ;//address of temperature of the object pointed 
+//const int  reg_emis_address          = 0x13 ;//address of the emissivity register
+//const int  emis_human                 = 16384 ;/// emis_val=0.98*16384+.49; 
+/*
+
+uint8_t crc8(uint8_t *addr, uint8_t len)
+{
+  uint8_t crc = 0;
+  while (len--) {
+    uint8_t inbyte = *addr++;
+    int i;
+    for (i = 8; i; i--)
+    {
+      uint8_t carry = (crc ^ inbyte) & 0x80;
+      crc <<= 1;
+      if (carry)
+        crc ^= 0x7;
+      inbyte <<= 1;
+    }
+  }
+  return crc;
+}  */
 
 
-const int dev_add_W                  = 0xB6 ; // address with write(0) bit at last////Address must be bit shifted left, 
-const int  reg_To_address             = 0x27 ;//temperature of the object pointed 
+class Mlx90615 {
+public:
+ /*   Mlx90615():  {  // _pin(pin) means pass pin to the DigitalOut constructor
+                                               // default the output to 0
+    }*/
+ 
+   float readTemp(int regAddress)
+    {
+       char cmd[2];
+       char reg[1];
+       int ack=1;
+       reg[0] = regAddress;
+    
+    /// write to the  address of the device
+       i2c.write(dev_add_W);
+       i2c.read(ack);
+       // write to the reg address
+       i2c.write(reg_To_address);
+       i2c.read(ack);
+       
+     //  write (int address, const char *data, int length, bool repeated=false)
+       i2c.write(dev_add_W,reg,1,true ); // write with repeated start
+        i2c.read(ack);
+        
+     //   read (int address, char *data, int length, bool repeated=false)
+       i2c.read(dev_add_W, cmd,2,false);
+       int temp = (cmd[1]<<8)|cmd[0]; // raw temp value
+       float tempC = (0.02*temp) -273.15; // temp in Celcius 
+       float tempF= (tempC*9/5) +31;
+       
+       return tempF;
+
+    
+        }
+    
+ 
+//private:;
+    
+};
+ 
+
+/*float mlx90615_readTemp(int regAddress)
+{
+       char cmd[2];
+       char reg[1];
+       int ack=1;
+       reg[0] = regAddress;
+    
+    /// write to the  address of the device
+       i2c.write(dev_add_W);
+       i2c.read(ack);
+       // write to the reg address
+       i2c.write(reg_To_address);
+       i2c.read(ack);
+       
+     //  write (int address, const char *data, int length, bool repeated=false)
+       i2c.write(dev_add_W,reg,1,true ); // write with repeated start
+        i2c.read(ack);
+        
+     //   read (int address, char *data, int length, bool repeated=false)
+       i2c.read(dev_add_W, cmd,2,false);
+       int temp = (cmd[1]<<8)|cmd[0]; // raw temp value
+       float tempC = (0.02*temp) -273.15; // temp in Celcius 
+       float tempF= temp;//(tempC*9/5) +31;
+       
+       return tempF;
+
+    
+}*/
+/*
+
+void mlx90615_emisWrite(int emis_val)
+{
+   
+   
+    //uint8_t data_low = 0;
+//    uint8_t data_high = 0;
+//    int ack=1;
+//   
+// 
+//  
+//    data_low=(uint8_t)(emis_val & 0x00ff);; 
+//    data_high= (uint8_t)((emis_val & 0xff00) >> 8);
+//    
+//     uint8_t *emisData=0x00;
+//    uint8_t emisData_A[4];// arrary to keep it in pointer
+//    emisData_A[0]=dev_add_W;
+//    emisData_A[1]=reg_emis_address;
+//    emisData_A[2]=data_low;
+//    emisData_A[3]=data_high;
+//    emisData=emisData_A;
+                          
+                          
+    char cmd[4] = { 0 };
+    uint8_t crcbuf[4] = { 0 };
+  
+  
+ 
+    crcbuf[0] = dev_add_W;       //write Address
+    crcbuf[1] = cmd[0] = reg_emis_address;
+    crcbuf[2] = cmd[1] = (uint8_t)(emis_val & 0xFF);
+    crcbuf[3] = cmd[2] = (uint8_t)((emis_val) >> 8);
+                cmd[3] = crc8(crcbuf, 4);
+    
+    i2c.write(dev_add_W, cmd, 4, true);
+    wait(0.1);
+    
+ 
+    
+    
+    
+
+   // /// write to the  address of the device
+//   i2c.write(dev_add_W);
+//   i2c.read(ack);
+//   // write to the reg address
+//   i2c.write(reg_To_address);
+//   i2c.read(ack);
+//   
+//   //write the low 8 bits
+//   i2c.write(data_low);
+//   i2c.read(ack);
+//   
+//    //write to the high  bits 
+//   i2c.write(data_high);
+//   i2c.read(ack);
+//   
+//   //write pec
+//   i2c.write(crc8(emisData,4));
+//   i2c.read(ack);
+            
 
 
 
+}*/
+
+//////////////MLX90615///////////////////////////////////////////////////////////////////////
 
 void read_ecg(bool work)
 {
     float meas_r;
     float meas_v;
-    int temp;
-    float tempC;
-    int ack=1;
+    float bodyTempF;
+    float envTempF; 
+    Mlx90615 mlx;
+
+   
     
     if(work){
            meas_r = analog_value.read(); // Read the analog input value (value from 0.0 to 1.0 = full ADC conversion range)
            meas_v = meas_r * 3300; // Converts value in the 0V-3.3V range
            
-            char cmd[2];
-            char reg[1];
-            reg[0] = 0x27;
-      //     i2c.write(dev_add_W, 1, true);
-        //   i2c.read(ack);
+          
+           bodyTempF = mlx.readTemp(reg_To_address);
+           envTempF = mlx.readTemp(reg_Ta_address);
            
-           i2c.write(dev_add_W);
-           i2c.read(ack);
-           i2c.write(reg_To_address);
-           i2c.read(ack);
-           
-         //  write (int address, const char *data, int length, bool repeated=false)
-           i2c.write(dev_add_W,reg,1,true );
-            i2c.read(ack);
             
-         //   read (int address, char *data, int length, bool repeated=false)
-           i2c.read(dev_add_W, cmd,2,false);
-           temp = (cmd[1]<<8)|cmd[0];
-           tempC = (0.02*temp) -273.15;
-         
+        
            
         
           // Display values
            printf("measure = %f = %.0f mV\n", meas_r, meas_v);
            
            //temp =15143;   
-          printf("Temperature : %f \r\n",tempC);
+          printf("Body Temperature : %f \r\n",bodyTempF);
+          
+           
+          printf("Env Temperature : %f \r\n",envTempF);
                 
         }
     
@@ -65,6 +218,10 @@
     
 }
  
+ 
+ // toggleing  the button ////////////// +
+ 
+ 
 void toggle()
 {
        myled = !myled; 
@@ -80,6 +237,10 @@
 int main() {
     
     button.rise(&toggle) ;
+    
+    //mlx90615_emisWrite(emis_human);
+     //mlx90615_emisWrite(emis_human);
+           wait(0.5);
     while(1)
     {
         
@@ -87,8 +248,14 @@
       read_ecg(workState);
       
       wait(1);
-        }
+     }
    
     
     
 }
+
+
+
+
+
+