Revision 1:209a69808812, committed 2016-12-14

Comitter:

poorin31632

Date:

Wed Dec 14 07:03:54 2016 +0000

Parent:

0:8cbdfc228814

Commit message:

finish

Changed in this revision

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/P6-Sensor_Actuator.cpp	Wed Dec 14 07:03:54 2016 +0000
@@ -0,0 +1,369 @@
+#include "mbed.h"
+#include "eeprom.h"
+#include "string.h"
+
+Serial db(D1, D0);
+Serial pc(PA_11, PA_12);
+EEPROM memory(D14,D15,0);
+PwmOut mypwm(D9);
+AnalogIn rain(A2);
+DigitalOut IN1(D10);
+DigitalOut IN2(D11);
+BusIn on(D3,D4);
+I2C i2c(D5,D7);   //sda,scl
+uint8_t temp_read();
+uint8_t humidity();
+int motor_on(uint8_t, uint8_t); // dir input(1,2) and pwm input(1-100)
+void Rx_interrupt();
+DigitalOut myled(LED1);
+DigitalIn butt(USER_BUTTON);
+
+char command[100];
+int8_t valu;
+char rx_line[100];
+
+int main() {
+   
+     
+    myled = 1;    
+
+    int user = 0;
+    int8_t humid1 = 0;
+    int8_t speed1 = 0;
+    int8_t freq1 = 0;
+    int8_t humid2 = 0;
+    int8_t speed2 = 0;
+    int8_t freq2 = 0;
+    int8_t ctemp = 0;
+    int8_t chumid = 0;
+    int8_t atemp1[15]={0};
+    int8_t ahumi1[7]={0};
+    int8_t atemp2[15]={0};
+    int8_t ahumi2[7]={0};
+    int mode = 0;
+    
+    memory.read(11,speed1);
+    memory.read(12,humid1);
+    memory.read(13,freq1);
+    memory.read(14,speed2);
+    memory.read(15,humid2);
+    memory.read(16,freq2);
+    Timer t;
+    int clock=0;
+    int c1 = 0;
+    int i1 = 0;
+    int c2 = 0;
+    int i2 = 0;
+    int t1 = -1;
+    int t2 = -1;
+    /*eeprom address
+    u1spd = 11
+    u1humit = 12
+    u1ti = 13
+    u2spd = 14
+    u2humit = 15
+    u2ti = 16
+    atemp1[15] = 21-34
+    ahumi1[7] =  41-46
+    atemp2[15] = 51-64
+    ahumi2[7] = 71-76
+    */
+    
+    pc.baud(9600);
+    
+    t.start();
+    while(1) {
+    chumid = humidity();
+    ctemp = temp_read();
+        //sampling
+        clock = t.read();
+        if(clock%freq1==0 && clock != t1){            ///////////// USER1
+            t1=clock;
+            if(c1<=13){       //temp array
+                atemp1[c1]=ctemp;
+                c1++;
+            }
+            else{
+                for(int i=0;i<13;i++){
+                    atemp1[i] = atemp1[i+1];
+                }
+                atemp1[13] = ctemp;
+            }
+            
+            if(i1<=5){        //humid array
+                ahumi1[i1]=chumid;
+                i1++;
+            }
+            else{
+                for(int i=0;i<5;i++){
+                    ahumi1[i] = ahumi1[i+1];
+                }
+                ahumi1[5] = chumid;
+            }
+            //save data
+            for(int i=0;i<=13;i++){
+                    memory.write(i+21,atemp1[i]);
+                }
+            for(int i=0;i<=5;i++){
+                    memory.write(i+41,ahumi1[i]);
+                } 
+        /* debugger
+        db.printf("%d:%d:%d:%d:%d:%d:%d:%d:%d:%d:%d:%d:%d:%d\n",atemp1[0],atemp1[1],atemp1[2],atemp1[3],atemp1[4],atemp1[5],atemp1[6],atemp1[7],atemp1[8],atemp1[9],atemp1[10],atemp1[11],atemp1[12],atemp1[13]);
+        db.printf("%d:%d:%d:%d:%d:%d\n",ahumi1[0],ahumi1[1],ahumi1[2],ahumi1[3],ahumi1[4],ahumi1[5]);
+        db.printf("%d:%d:%d:%d:%d:%d:%d:%d:%d:%d:%d:%d:%d:%d\n",atemp2[0],atemp2[1],atemp2[2],atemp2[3],atemp2[4],atemp2[5],atemp2[6],atemp2[7],atemp2[8],atemp2[9],atemp2[10],atemp2[11],atemp2[12],atemp2[13]);
+        db.printf("%d:%d:%d:%d:%d:%d\n",ahumi2[0],ahumi2[1],ahumi2[2],ahumi2[3],ahumi2[4],ahumi2[5]);   
+        */
+        }
+        
+        if(clock%freq2==0 && clock != t2){              /////////////USER2
+            t2 = clock;
+          
+            if(c2<=13){        //temp array
+                atemp2[c2]=ctemp;
+                c2++;
+            }
+            else{
+                for(int i=0;i<13;i++){
+                    atemp2[i] = atemp2[i+1];
+                }
+                atemp2[13] = ctemp;
+            }
+            
+            if(i2<=5){         //humid array
+                ahumi2[i2]=chumid;
+                i2++;
+            }
+            else{
+                for(int i=0;i<5;i++){
+                    ahumi2[i] = ahumi2[i+1];
+                }
+                ahumi2[5] = chumid;
+            }
+            //save data
+            for(int i=0;i<=13;i++){
+                memory.write(i+51,atemp2[i]);
+            }
+            for(int i=0;i<=5;i++){
+                memory.write(i+71,ahumi2[i]);
+            } 
+        }
+        
+        //auto mode
+        if(mode==1){
+            if(user==1){
+                if(chumid>humid1){
+                    if(on.read()!=2){
+                        motor_on(2,speed1);
+                    }
+                }
+                else if(chumid<humid1){
+                        if(on.read()!=1){
+                            motor_on(1,speed1);
+                        }
+                }      
+            }
+            else if(user==2){
+                if(chumid>humid2){
+                    if(on.read()==1){
+                        motor_on(2,speed2);
+                    }
+                }
+                else if(chumid<humid1){
+                    if(on.read()!=1){
+                        motor_on(1,speed2);
+                    }
+                }
+            }
+        }
+        
+       
+        
+        //get serial command
+            
+        if(pc.readable()){ 
+            pc.scanf("%[^:]:%d",command,&valu);
+            
+            //db.printf("%s/%d\n",command,valu); //debugger
+            //wait_ms(50);
+            //pc.printf("command = %s valu = %d user = %d\n",command,valu,user);
+            
+           
+            
+            
+                //call function
+            if (strcmp(command,"user1")==0 || strcmp(command,"\nuser1")==0) {
+               //return spd:humid_trsh:samp_frq USER1 
+               user = 1;
+               memory.read(11,speed1);
+               memory.read(12,humid1);
+               memory.read(13,freq1);
+               
+               pc.printf("%d:%d:%d\n",speed1,humid1,freq1);
+                  
+            }
+            else if(strcmp(command,"user2")==0 || strcmp(command,"\nuser2")==0){
+                //return spd:humid_trsh:samp_frq USER2
+               user = 2; 
+               memory.read(14,speed2);
+               memory.read(15,humid2);
+               memory.read(16,freq2);
+               
+               pc.printf("%d:%d:%d\n",speed2,humid2,freq2);
+               
+            }
+            else if(strcmp(command,"auto")==0 || strcmp(command,"\nauto")==0){
+                //auto mode
+                //return 'ok'
+                mode = 1;
+                pc.printf("ok\n");
+            }
+            else if(strcmp(command,"on")==0 || strcmp(command,"\non")==0){
+                //motor on 
+                mode = 0; 
+                if(user==1){
+                    motor_on(1,speed1);
+                }
+                else{
+                    motor_on(1,speed2);
+                }
+                //return 'ok'
+                pc.printf("ok\n");
+                  
+            }
+            else if(strcmp(command,"off")==0 || strcmp(command,"\noff")==0){
+                //off motor
+                mode = 0; 
+                if(user==1){
+                    motor_on(2,speed1);
+                }
+                else{
+                    motor_on(2,speed2);
+                }   
+                //return 'ok' 
+                pc.printf("ok\n");
+            }
+            else if(strcmp(command,"speed")==0 || strcmp(command,"\nspeed")==0){
+                //motor spd = int8_t valu 
+                if(user == 1){
+                    memory.write(11,valu);
+                }
+                else if(user == 2){
+                    memory.write(14,valu);
+                }
+                //return 'ok'
+                pc.printf("ok\n");
+            }
+            else if(strcmp(command,"humidity")==0 || strcmp(command,"\nhumidity")==0){
+                //humid_trsh = int8_t valu 
+                if(user == 1){
+                    memory.write(12,valu);
+                }
+                else if(user == 2){
+                    memory.write(15,valu);
+                }
+                //return 'ok'
+                pc.printf("ok\n");
+            }
+            else if(strcmp(command,"time")==0 || strcmp(command,"\ntime")==0){
+                //samp_frq = int8_t valu
+                if(user == 1){
+                    memory.write(13,valu);
+                }
+                else if(user == 2){
+                    memory.write(16,valu);
+                }
+                //return 'ok'
+                pc.printf("ok\n");
+            }
+            else if(strcmp(command,"get")==0 || strcmp(command,"gget")==0 || strcmp(command,"\nget")==0 || strcmp(command,"\ngget")==0){
+                //return temp:humid  
+                pc.printf("%d:%d\n",ctemp,chumid);
+                //db.printf("---%d:%d\n",ctemp,chumid);  
+            }
+            else if(strcmp(command,"gettemp")==0 || strcmp(command,"\ngettemp")==0){
+                //return temp t:t:t:t x14   
+                if(user==1){
+                    pc.printf("%d:%d:%d:%d:%d:%d:%d:%d:%d:%d:%d:%d:%d:%d\n",atemp1[0],atemp1[1],atemp1[2],atemp1[3],atemp1[4],atemp1[5],atemp1[6],atemp1[7],atemp1[8],atemp1[9],atemp1[10],atemp1[11],atemp1[12],atemp1[13]);
+                }
+                else if(user==2){
+                    pc.printf("%d:%d:%d:%d:%d:%d:%d:%d:%d:%d:%d:%d:%d:%d\n",atemp2[0],atemp2[1],atemp2[2],atemp2[3],atemp2[4],atemp2[5],atemp2[6],atemp2[7],atemp2[8],atemp2[9],atemp2[10],atemp2[11],atemp2[12],atemp2[13]);
+                }
+            }
+            else if(strcmp(command,"gethumi")==0 || strcmp(command,"\ngethumi")==0){
+                //return humid h:h:h:h x6    
+                if(user==1){
+                    pc.printf("%d:%d:%d:%d:%d:%d\n",ahumi1[0],ahumi1[1],ahumi1[2],ahumi1[3],ahumi1[4],ahumi1[5]);
+                }
+                else if(user==2){
+                    pc.printf("%d:%d:%d:%d:%d:%d\n",ahumi2[0],ahumi2[1],ahumi2[2],ahumi2[3],ahumi2[4],ahumi2[5]);    
+                } 
+            }
+            
+        
+     }   
+        
+        
+           
+       
+    }//mainwhile
+}//main
+
+
+int motor_on(uint8_t dir, uint8_t pwm)
+{
+    float a;
+    a=pwm;
+    a=a/100;
+    mypwm.write(a);
+    if(dir==1) {
+        do {
+            IN1=1;
+            IN2=0;
+        } while(on.read()!=1);
+            IN1=0;
+            IN2=0;
+    }//end on
+    if(dir==2) {
+        do {
+            IN1=0;
+            IN2=1;
+        } while(on.read()!=2);
+            IN1=0;
+            IN2=0;
+    }//end off
+    return 0;
+}// end function
+
+uint8_t humidity()
+{
+    return 100-(rain.read()*100);
+}// end function
+
+uint8_t temp_read()
+{
+    uint8_t ch;
+    char p1,p2;
+    float temp;
+    i2c.start();
+    ch=i2c.write(0xB4);
+
+    if(!ch)return false;
+    ch=i2c.write(0x07);
+
+    if(!ch)return false;
+    i2c.start();
+    ch=i2c.write(0xB5);
+
+    if(!ch)return false;
+
+    p1=i2c.read(1);     //Tobj low byte
+    p2=i2c.read(1);     //Tobj heigh byte
+    i2c.read(0);
+
+    i2c.stop();
+    
+
+    temp=((((p2&0x007f)<<8)+p1)*0.02)-0.01;
+    //printf("%.0f\n", temp-273);
+    return (int)temp-273;
+}

--- a/main.cpp	Wed Dec 14 05:41:40 2016 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,369 +0,0 @@
-#include "mbed.h"
-#include "eeprom.h"
-#include "string.h"
-
-Serial db(D1, D0);
-Serial pc(PA_11, PA_12);
-EEPROM memory(D14,D15,0);
-PwmOut mypwm(D9);
-AnalogIn rain(A2);
-DigitalOut IN1(D10);
-DigitalOut IN2(D11);
-BusIn on(D3,D4);
-I2C i2c(D5,D7);   //sda,scl
-uint8_t temp_read();
-uint8_t humidity();
-int motor_on(uint8_t, uint8_t); // dir input(1,2) and pwm input(1-100)
-void Rx_interrupt();
-DigitalOut myled(LED1);
-DigitalIn butt(USER_BUTTON);
-
-char command[100];
-int8_t valu;
-char rx_line[100];
-
-int main() {
-   
-     
-    myled = 1;    
-
-    int user = 0;
-    int8_t humid1 = 0;
-    int8_t speed1 = 0;
-    int8_t freq1 = 0;
-    int8_t humid2 = 0;
-    int8_t speed2 = 0;
-    int8_t freq2 = 0;
-    int8_t ctemp = 0;
-    int8_t chumid = 0;
-    int8_t atemp1[15]={0};
-    int8_t ahumi1[7]={0};
-    int8_t atemp2[15]={0};
-    int8_t ahumi2[7]={0};
-    int mode = 0;
-    
-    memory.read(11,speed1);
-    memory.read(12,humid1);
-    memory.read(13,freq1);
-    memory.read(14,speed2);
-    memory.read(15,humid2);
-    memory.read(16,freq2);
-    Timer t;
-    int clock=0;
-    int c1 = 0;
-    int i1 = 0;
-    int c2 = 0;
-    int i2 = 0;
-    int t1 = -1;
-    int t2 = -1;
-    /*eeprom address
-    u1spd = 11
-    u1humit = 12
-    u1ti = 13
-    u2spd = 14
-    u2humit = 15
-    u2ti = 16
-    atemp1[15] = 21-34
-    ahumi1[7] =  41-46
-    atemp2[15] = 51-64
-    ahumi2[7] = 71-76
-    */
-    
-    pc.baud(9600);
-    
-    t.start();
-    while(1) {
-    chumid = humidity();
-    ctemp = temp_read();
-        //sampling
-        clock = t.read();
-        if(clock%freq1==0 && clock != t1){            ///////////// USER1
-            t1=clock;
-            if(c1<=13){       //temp array
-                atemp1[c1]=ctemp;
-                c1++;
-            }
-            else{
-                for(int i=0;i<13;i++){
-                    atemp1[i] = atemp1[i+1];
-                }
-                atemp1[13] = ctemp;
-            }
-            
-            if(i1<=5){        //humid array
-                ahumi1[i1]=chumid;
-                i1++;
-            }
-            else{
-                for(int i=0;i<5;i++){
-                    ahumi1[i] = ahumi1[i+1];
-                }
-                ahumi1[5] = chumid;
-            }
-            //save data
-            for(int i=0;i<=13;i++){
-                    memory.write(i+21,atemp1[i]);
-                }
-            for(int i=0;i<=5;i++){
-                    memory.write(i+41,ahumi1[i]);
-                } 
-        /* debugger
-        db.printf("%d:%d:%d:%d:%d:%d:%d:%d:%d:%d:%d:%d:%d:%d\n",atemp1[0],atemp1[1],atemp1[2],atemp1[3],atemp1[4],atemp1[5],atemp1[6],atemp1[7],atemp1[8],atemp1[9],atemp1[10],atemp1[11],atemp1[12],atemp1[13]);
-        db.printf("%d:%d:%d:%d:%d:%d\n",ahumi1[0],ahumi1[1],ahumi1[2],ahumi1[3],ahumi1[4],ahumi1[5]);
-        db.printf("%d:%d:%d:%d:%d:%d:%d:%d:%d:%d:%d:%d:%d:%d\n",atemp2[0],atemp2[1],atemp2[2],atemp2[3],atemp2[4],atemp2[5],atemp2[6],atemp2[7],atemp2[8],atemp2[9],atemp2[10],atemp2[11],atemp2[12],atemp2[13]);
-        db.printf("%d:%d:%d:%d:%d:%d\n",ahumi2[0],ahumi2[1],ahumi2[2],ahumi2[3],ahumi2[4],ahumi2[5]);   
-        */
-        }
-        
-        if(clock%freq2==0 && clock != t2){              /////////////USER2
-            t2 = clock;
-          
-            if(c2<=13){        //temp array
-                atemp2[c2]=ctemp;
-                c2++;
-            }
-            else{
-                for(int i=0;i<13;i++){
-                    atemp2[i] = atemp2[i+1];
-                }
-                atemp2[13] = ctemp;
-            }
-            
-            if(i2<=5){         //humid array
-                ahumi2[i2]=chumid;
-                i2++;
-            }
-            else{
-                for(int i=0;i<5;i++){
-                    ahumi2[i] = ahumi2[i+1];
-                }
-                ahumi2[5] = chumid;
-            }
-            //save data
-            for(int i=0;i<=13;i++){
-                memory.write(i+51,atemp2[i]);
-            }
-            for(int i=0;i<=5;i++){
-                memory.write(i+71,ahumi2[i]);
-            } 
-        }
-        
-        //auto mode
-        if(mode==1){
-            if(user==1){
-                if(chumid>humid1){
-                    if(on.read()!=2){
-                        motor_on(2,speed1);
-                    }
-                }
-                else if(chumid<humid1){
-                        if(on.read()!=1){
-                            motor_on(1,speed1);
-                        }
-                }      
-            }
-            else if(user==2){
-                if(chumid>humid2){
-                    if(on.read()==1){
-                        motor_on(2,speed2);
-                    }
-                }
-                else if(chumid<humid1){
-                    if(on.read()!=1){
-                        motor_on(1,speed2);
-                    }
-                }
-            }
-        }
-        
-       
-        
-        //get serial command
-            
-        if(pc.readable()){ 
-            pc.scanf("%[^:]:%d",command,&valu);
-            
-            //db.printf("%s/%d\n",command,valu); //debugger
-            //wait_ms(50);
-            //pc.printf("command = %s valu = %d user = %d\n",command,valu,user);
-            
-           
-            
-            
-                //call function
-            if (strcmp(command,"user1")==0 || strcmp(command,"\nuser1")==0) {
-               //return spd:humid_trsh:samp_frq USER1 
-               user = 1;
-               memory.read(11,speed1);
-               memory.read(12,humid1);
-               memory.read(13,freq1);
-               
-               pc.printf("%d:%d:%d\n",speed1,humid1,freq1);
-                  
-            }
-            else if(strcmp(command,"user2")==0 || strcmp(command,"\nuser2")==0){
-                //return spd:humid_trsh:samp_frq USER2
-               user = 2; 
-               memory.read(14,speed2);
-               memory.read(15,humid2);
-               memory.read(16,freq2);
-               
-               pc.printf("%d:%d:%d\n",speed2,humid2,freq2);
-               
-            }
-            else if(strcmp(command,"auto")==0 || strcmp(command,"\nauto")==0){
-                //auto mode
-                //return 'ok'
-                mode = 1;
-                pc.printf("ok\n");
-            }
-            else if(strcmp(command,"on")==0 || strcmp(command,"\non")==0){
-                //motor on 
-                mode = 0; 
-                if(user==1){
-                    motor_on(1,speed1);
-                }
-                else{
-                    motor_on(1,speed2);
-                }
-                //return 'ok'
-                pc.printf("ok\n");
-                  
-            }
-            else if(strcmp(command,"off")==0 || strcmp(command,"\noff")==0){
-                //off motor
-                mode = 0; 
-                if(user==1){
-                    motor_on(2,speed1);
-                }
-                else{
-                    motor_on(2,speed2);
-                }   
-                //return 'ok' 
-                pc.printf("ok\n");
-            }
-            else if(strcmp(command,"speed")==0 || strcmp(command,"\nspeed")==0){
-                //motor spd = int8_t valu 
-                if(user == 1){
-                    memory.write(11,valu);
-                }
-                else if(user == 2){
-                    memory.write(14,valu);
-                }
-                //return 'ok'
-                pc.printf("ok\n");
-            }
-            else if(strcmp(command,"humidity")==0 || strcmp(command,"\nhumidity")==0){
-                //humid_trsh = int8_t valu 
-                if(user == 1){
-                    memory.write(12,valu);
-                }
-                else if(user == 2){
-                    memory.write(15,valu);
-                }
-                //return 'ok'
-                pc.printf("ok\n");
-            }
-            else if(strcmp(command,"time")==0 || strcmp(command,"\ntime")==0){
-                //samp_frq = int8_t valu
-                if(user == 1){
-                    memory.write(13,valu);
-                }
-                else if(user == 2){
-                    memory.write(16,valu);
-                }
-                //return 'ok'
-                pc.printf("ok\n");
-            }
-            else if(strcmp(command,"get")==0 || strcmp(command,"gget")==0 || strcmp(command,"\nget")==0 || strcmp(command,"\ngget")==0){
-                //return temp:humid  
-                pc.printf("%d:%d\n",ctemp,chumid);
-                //db.printf("---%d:%d\n",ctemp,chumid);  
-            }
-            else if(strcmp(command,"gettemp")==0 || strcmp(command,"\ngettemp")==0){
-                //return temp t:t:t:t x14   
-                if(user==1){
-                    pc.printf("%d:%d:%d:%d:%d:%d:%d:%d:%d:%d:%d:%d:%d:%d\n",atemp1[0],atemp1[1],atemp1[2],atemp1[3],atemp1[4],atemp1[5],atemp1[6],atemp1[7],atemp1[8],atemp1[9],atemp1[10],atemp1[11],atemp1[12],atemp1[13]);
-                }
-                else if(user==2){
-                    pc.printf("%d:%d:%d:%d:%d:%d:%d:%d:%d:%d:%d:%d:%d:%d\n",atemp2[0],atemp2[1],atemp2[2],atemp2[3],atemp2[4],atemp2[5],atemp2[6],atemp2[7],atemp2[8],atemp2[9],atemp2[10],atemp2[11],atemp2[12],atemp2[13]);
-                }
-            }
-            else if(strcmp(command,"gethumi")==0 || strcmp(command,"\ngethumi")==0){
-                //return humid h:h:h:h x6    
-                if(user==1){
-                    pc.printf("%d:%d:%d:%d:%d:%d\n",ahumi1[0],ahumi1[1],ahumi1[2],ahumi1[3],ahumi1[4],ahumi1[5]);
-                }
-                else if(user==2){
-                    pc.printf("%d:%d:%d:%d:%d:%d\n",ahumi2[0],ahumi2[1],ahumi2[2],ahumi2[3],ahumi2[4],ahumi2[5]);    
-                } 
-            }
-            
-        
-     }   
-        
-        
-           
-       
-    }//mainwhile
-}//main
-
-
-int motor_on(uint8_t dir, uint8_t pwm)
-{
-    float a;
-    a=pwm;
-    a=a/100;
-    mypwm.write(a);
-    if(dir==1) {
-        do {
-            IN1=1;
-            IN2=0;
-        } while(on.read()!=1);
-            IN1=0;
-            IN2=0;
-    }//end on
-    if(dir==2) {
-        do {
-            IN1=0;
-            IN2=1;
-        } while(on.read()!=2);
-            IN1=0;
-            IN2=0;
-    }//end off
-    return 0;
-}// end function
-
-uint8_t humidity()
-{
-    return 100-(rain.read()*100);
-}// end function
-
-uint8_t temp_read()
-{
-    uint8_t ch;
-    char p1,p2;
-    float temp;
-    i2c.start();
-    ch=i2c.write(0xB4);
-
-    if(!ch)return false;
-    ch=i2c.write(0x07);
-
-    if(!ch)return false;
-    i2c.start();
-    ch=i2c.write(0xB5);
-
-    if(!ch)return false;
-
-    p1=i2c.read(1);     //Tobj low byte
-    p2=i2c.read(1);     //Tobj heigh byte
-    i2c.read(0);
-
-    i2c.stop();
-    
-
-    temp=((((p2&0x007f)<<8)+p1)*0.02)-0.01;
-    //printf("%.0f\n", temp-273);
-    return (int)temp-273;
-}