Diff: main.cpp

Revision:

0:0ac1b1ae4b2f

Child:

1:b5d2f9051fc7

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Tue Dec 01 13:02:35 2020 +0000
@@ -0,0 +1,96 @@
+#include "mbed.h"
+#include <cstdio>
+// main() runs in its own thread in the OS
+#include "ThisThread.h"
+#include "mbed.h"
+#include "C12832.h"
+#include <stdio.h>
+#include "LM75B.h"
+#include "platform/mbed_thread.h"
+// this solution unsure every thread is accessing the file, the LCD and the LM78B at a diffrent time 
+Thread t2;
+Thread t1;
+DigitalOut myled(LED1);
+LocalFileSystem local("local");               // Create the local filesystem under the name "local"
+C12832 lcd(p5, p7, p6, p8, p11);
+LM75B sensor(p28, p27);
+void thread_function(void const *arg){
+    int sleepwait=atoi((char*)arg);
+    ThisThread::sleep_for(sleepwait*3*1000);
+    FILE *fp = fopen("/local/logtemp.txt", "w");  
+    lcd.cls();
+
+    float max=0,min=0,avg=0,current;int count=0;
+    char buffer[200] ;
+    fprintf(fp, "Temperature:\n");
+    fclose(fp);
+    while(1) {
+        
+        
+        fp = fopen("/local/logtemp.txt", "a");
+        printf("Thread ID%d\n",sleepwait);
+        if (fp!=NULL){
+
+            if (sensor.open()) {
+                printf("Device detected!\n");
+                printf("Temp = %.3f\n", sensor.temp());
+                fprintf (fp,"%.3f\n",sensor.temp());
+                
+            } else {
+                error("Device not detected!\n");
+            }
+            fclose (fp);            
+          }
+        
+    
+        fp = fopen("/local/logtemp.txt", "r");
+        max=0;min=0;avg=0;count=0;
+        if(fp) {
+          while( fgets(buffer,200,fp) ) {
+               if(count==0){
+                    printf("reading from file %s\n",buffer);
+                    count++;
+                    continue;
+                }
+               // printf("Reading from file %s\n",buffer);
+                count++;
+                current=atof(buffer);
+                if(current>=max)
+                    max=current;
+                if(current<=min)
+                    min=current;
+                avg+=current;
+            }
+            if(count==0)
+                count=1;
+            avg=avg/count;
+            printf("Minimum Temp = %.3f\n", min);
+            printf("Maximum Temp = %.3f\n", max);
+            printf("Average Temp = %.3f\n", avg);
+            lcd.locate(0,1);
+            lcd.printf("Minimum Temp = %.3f", min);
+            lcd.locate(0,10);
+            lcd.printf("Maximum Temp = %.3f", max);
+            lcd.locate(0,20);
+            lcd.printf("Average Temp = %.3f", avg);
+            fclose(fp);  
+            fclose(fp);           
+        }
+       
+        
+
+        ThisThread::sleep_for(10000);
+    }
+   
+}
+
+int main() {
+        t1.start(callback(thread_function,(void*)"2"));
+        t2.start(callback(thread_function,(void*)"3"));
+        thread_function((void*)"1");
+        // this solution unsure every thread is accessing the file, the LCD and the LM78B at a diffrent time 
+
+
+}
+
+