Revision 1:9cd48cdf8681, committed 2014-01-09

Comitter:

villeah

Date:

Thu Jan 09 06:59:47 2014 +0000

Parent:

0:bbaf949d2a27

Commit message:

Ihan kakka.

Changed in this revision

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/RPCInterface.lib	Thu Jan 09 06:59:47 2014 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/MichaelW/code/RPCInterface/#682c65afe534

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/adc.lib	Thu Jan 09 06:59:47 2014 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/flash_ahaa/code/adc/#b05e4f5e2c8c

--- a/main.cpp	Tue Feb 21 01:47:13 2012 +0000
+++ b/main.cpp	Thu Jan 09 06:59:47 2014 +0000
@@ -1,26 +0,0 @@
-#include "mbed.h"
-#include "mlx90614.h"
-
-DigitalOut myled(LED1); //displays I2C wait
-I2C i2c(p28,p27);   //sda,scl
-Serial pc(USBTX,USBRX);  //serial usb config
-
-MLX90614 IR_thermometer(&i2c);
-//setup an MLX90614 using MLX90614 library from
-// http://mbed.org/users/aquahika/libraries/MLX90614/lsixz6
-
-float temp; //temperature in degrees C
-
-int main() {
-    while (1) {
-        myled=1; // if led1 on - waiting on I2C
-        if (IR_thermometer.getTemp(&temp)) {
-            //gets temperature from sensor via I2C bus
-            myled=0;
-            //print temperature on PC
-            printf("Temperature is %5.1F degrees C\r\n",temp);
-        }
-        //wait for device to produce next temperature reading
-        wait(0.5);
-    }
-}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main2.cpp	Thu Jan 09 06:59:47 2014 +0000
@@ -0,0 +1,91 @@
+#include "mbed.h"
+#include "mlx90614.h"
+#include "rpc.h"
+#include "adc.h"
+#include "SerialRPCInterface.h"
+
+#define SAMPLE_RATE    150000
+
+
+ADC adc(SAMPLE_RATE, 1);
+// the default address of the infrared sensor (7 bit address + 1 bit for read/write, 0xB4 for write)
+char i2caddress = 0xB4; 
+
+AnalogIn ain(p20); //adc from pin 20
+DigitalOut myled(LED1); //displays I2C wait
+I2C i2c(p28,p27);   //sda,scl
+SerialRPCInterface RPC(USBTX, USBRX); 
+
+bool getTemp(float* temp_val){
+
+    char p1,p2,p3;
+    float temp_thermo;
+    bool ch;
+
+    i2c.stop();                            //stop i2c if not ack
+    wait(0.01);
+    i2c.start();                           //start I2C                   
+    ch=i2c.write(i2caddress);              //device address with write condition
+    
+    if(!ch){
+        return false;
+    }                                        //No Ack, return False
+    
+    ch=i2c.write(0x07);                    //device ram address where Tobj value is present
+
+    if(!ch){
+        return false;
+    }
+
+    i2c.start();                           //repeat start
+    ch=i2c.write(i2caddress|0x01);         //device address with read condition 
+    if(!ch){
+        return false;
+    }
+
+    p1=i2c.read(1);     //Tobj low byte
+    p2=i2c.read(1);     //Tobj heigh byte
+    p3=i2c.read(0);     //PEC
+    
+    i2c.stop();                            //stop condition
+     
+    
+    temp_thermo=((((p2&0x007f)<<8)+p1)*0.02)-0.01;      //degree centigrate conversion
+    *temp_val=temp_thermo-273;                          //Convert kelvin to degree Celsius
+    
+    return true;                            //load data successfully, return true 
+}
+
+
+float IRTemp = 0; //temperature in degrees C
+float AnalogTemp;
+float IRTempTemp;
+
+void anaali(char* input, char* output);
+void digit(char* input, char* output);
+
+RPCFunction rpc_anal(&anaali, "rpc_anal");
+RPCFunction rpc_digi(&digit, "rpc_digi");
+
+           
+int main() {
+
+    wait(1);
+    while (1) {
+        myled=1;
+        if (getTemp(&IRTempTemp)) {
+            myled=0;
+        }
+        wait(0.5);
+        if(IRTempTemp < 150) //discard clearly wrong values from trying to read the sensor when it's not ready
+            IRTemp = IRTempTemp;
+    }
+}
+
+void anaali(char* input, char* output){ 
+    sprintf(output, "%f", (float)ain); //prints the analog sensor value to the output stream
+}
+
+void digit(char* input, char* output){
+    sprintf(output, "%f", IRTemp); //prints the digital sensor value to the output stream
+}
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