Diff: main.cpp

Revision:

0:989432420ed6

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Sun Oct 10 11:47:33 2010 +0000
@@ -0,0 +1,89 @@
+//2ak1009_Solar_VI
+// for Solar charger Copyright by K.Takeuchi
+
+#include "mbed.h"
+#include "TextLCD2004.h"
+
+#define ON 1
+#define OFF 0
+#define max_minutes 210
+#define I_trim 0.15
+
+AnalogIn Vbat_adc(p20);
+AnalogIn Vsolar_adc(p19);
+AnalogIn Isolar_adc(p18);
+
+TextLCD lcd(p24, p25, p26, p27, p28, p29, p30,20,4); // rs, rw, e, d0, d1, d2, d3
+LocalFileSystem local("local");
+
+int main() {
+      float Vbat,Vsolar,Isolar;
+      float Isolar_sum,Isolar_avg,Vsolar_sum,Vsolar_avg,Wsolar;
+      int k=0,s_count=60,m_count=max_minutes;
+      lcd.cls();
+      lcd.locate(0,0);
+      lcd.printf("=Solar MPPT Sys.=");
+      lcd.locate(0,1);
+      lcd.printf("File open...");
+      FILE *fp=fopen("/local/Solar.txt","a");
+      if(!fp){
+        lcd.locate(0,2);
+        fprintf(stderr,"File/local/Solar.txt cant't opened");
+        exit(1);
+      }
+      lcd.locate(0,1);
+      lcd.printf("System start!!");
+      fprintf(fp,"\n");
+      wait(2.0);
+
+      while(1){
+        Vbat=Vbat_adc.read()*30;
+        Vsolar=Vsolar_adc.read()*30;
+        Isolar=(Isolar_adc.read()*3.3-2.5)/185*1000;
+        Wsolar=Vsolar_avg*Isolar_avg;
+        lcd.cls();
+        lcd.locate(0,0);
+        lcd.printf("=Solar MPPT Sys.=");
+        lcd.locate(0,1);
+        lcd.printf("Sp V:%2.1fV,I:%1.2fA",Vsolar_avg,Isolar_avg);
+        lcd.locate(0,2);
+        lcd.printf("Vbat:%2.1fV",Vbat);
+        lcd.locate(0,3);
+        lcd.printf("W:%2.1fW %d:%d",Wsolar,m_count,s_count);
+        wait(0.5);
+        lcd.locate(0,0);
+        lcd.printf("=Solar MPPT Sys =");
+        wait(0.5);
+        Vsolar_sum=Vsolar_sum+Vsolar;
+        Isolar_sum=Isolar_sum+Isolar;
+        k++;
+        if(k==10){
+          k=0;
+          Vsolar_avg=Vsolar_sum/10;
+          Isolar_avg=Isolar_sum/10-I_trim;
+          Vsolar_sum=0;
+          Isolar_sum=0;
+        }
+        s_count--;
+        if(s_count==0){
+          s_count=60;
+          m_count--;
+          fprintf(fp,"%2d, %2.1f, %2.2f, %2.2f, %2.1f\n",m_count,Vsolar_avg,Isolar_avg,Wsolar,Vbat);
+        }
+        if(m_count ==0){
+          lcd.cls();
+          lcd.locate(0,0);
+          lcd.printf("=Solar MPPT Sys.=");wait(0.2);
+          lcd.locate(0,1);
+          lcd.printf("File close...");wait(0.2);
+          fprintf(fp,"\n");
+          fclose(fp);
+          lcd.locate(0,2);
+          lcd.printf("Recording Finish!");
+          wait(5.0);
+          exit(1);
+        }      
+  }//while
+}//main
+
+