diff --git a/src/logger.c b/src/logger.c
index c65c3da..30f7f62 100644
--- a/src/logger.c
+++ b/src/logger.c
@@ -59,12 +59,26 @@ int main (int argc, char *argv [])
   char logfilepath[255]="";
   regptr=fopen("/home/loic/out.txt","r");
   
-  *logfilepath='\0';
-  sprintf(logfilepath,"%s/%ld",__logdir,INTERVAL(TIMESTAMP(),__loginterval));
-  logptr=fopen(logfilepath,"w");
-  fprintf(logptr,"timestamp,power\n");
-  fclose(logptr);
-  
+  for(int i=0;i<1;i++){
+    char buffer[255];
+    int power;
+    time_t interval=INTERVAL(__loginterval);
+    *logfilepath='\0';
+    sprintf(logfilepath,"%s/%ld",__logdir);
+    logptr=fopen(logfilepath,"w");
+    fprintf(logptr,"timestamp,power\n");
+    // Log current interval
+    while((TIMESTAMP()-interval)<__loginterval){
+      fgets(buffer,255,regptr);
+      power=atoi(buffer);
+      fprintf(logptr,"%ld,%d\n",TIMESTAMP(),power);
+      fseek(regptr,0,SEEK_SET);
+      sleep(1);
+      printf("Tick\n");
+    }
+    fclose(logptr);
+  }
+
   fclose(regptr);
 
   // Extract bus id and ina260 chip address
diff --git a/src/utils.h b/src/utils.h
index 5acdedc..01e0c33 100644
--- a/src/utils.h
+++ b/src/utils.h
@@ -13,14 +13,14 @@
 #define STR(symbol) #symbol
 #define STRINGIFY(symbol) STR(symbol)
 
-#define INTERVAL(timestamp,duration)\
-    ((timestamp) - ((timestamp)%(duration)))
-
-#define INTERVAL_LAST(timestamp,duration)\
-    (INTERVAL(INTERVAL((timestamp),(duration))-1,(duration)))
-
 #define TIMESTAMP() (time(NULL))
 
+#define INTERVAL(duration)\
+    ((TIMESTAMP()) - ((TIMESTAMP())%(duration)))
+
+#define INTERVAL_LAST(duration)\
+    (INTERVAL(INTERVAL((TIMESTAMP()),(duration))-1,(duration)))
+
 #define FILE_EXISTS(path) (access((path), F_OK) == 0)
 
 void mkdirp(char *path);
\ No newline at end of file