Diff: main.cpp

Revision:

0:3d7dbac1d37b

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Sun Oct 03 00:12:27 2010 +0000
@@ -0,0 +1,98 @@
+//2ak0927_Solar_LocalFile
+// for Solar charger Copyright by K.Takeuchi
+
+#include "mbed.h"
+#include "TextLCD2004.h"
+
+#define ON 1
+#define OFF 0
+#define max_minutes 120
+
+AnalogIn Vbat_adc(p20);
+AnalogIn Vsolar_adc(p19);
+
+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,Vbat_tmp;
+      int m_count,s_count;    
+      m_count=0;
+      s_count=0;
+      lcd.cls();
+      lcd.locate(0,0);
+      lcd.printf("=Solar MPPT Sys.=");
+      lcd.locate(0,1);
+      lcd.printf("File open...");
+      wait(2.0);
+      FILE *fp=fopen("/local/Solar.txt","w");
+      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!!");
+      wait(2.0);
+
+      while(1){
+        Vbat=Vbat_adc.read()*30;
+        Vbat=(Vbat+Vbat_tmp)/2;
+        Vsolar=Vsolar_adc.read()*30;
+        lcd.cls();
+        lcd.locate(0,0);
+        lcd.printf("=Solar MPPT Sys.=");
+        lcd.locate(0,1);
+        lcd.printf("Vsolar:%2.1fV %2dm%2ds",Vsolar,m_count,s_count);
+        lcd.locate(0,2);
+        lcd.printf("Vbat:%2.1fV",Vbat);
+        if(Vsolar > Vbat){
+          lcd.locate(0,3);
+          lcd.printf("=== Charging ====");
+        }
+        else if(Vsolar < 2.0){
+          lcd.locate(0,3);
+          if(Vbat >= 12.6){
+            lcd.printf("== Batt:100%% ==");
+          }
+          else if(Vbat >= 12.4){
+            lcd.printf("== Batt:75%% ==");
+          }
+          else if(Vbat >= 12.2){
+            lcd.printf("== Batt:50%% ==");
+          }
+          else if(Vbat >= 12.0){
+            lcd.printf("== Batt:25%% ==");
+          }
+          else{
+            lcd.printf("== Battery Low!! ==");
+          }
+        }
+        Vbat_tmp=Vbat;
+        wait(0.5);
+        lcd.locate(0,0);
+        lcd.printf("=Solar MPPT Sys =");
+        wait(0.5);
+        s_count++;
+        if(s_count ==60){
+          s_count=0;
+          m_count++;
+          fprintf(fp,"%2d, %2.1f, %2.1f\n",m_count,Vsolar,Vbat);
+        }
+        if(m_count==max_minutes){//Keisoku Time (minutes)
+          fclose(fp);
+          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);
+          wait(10.0);
+          m_count++;
+          //lcd.locate(0,2);
+          //lcd.printf("Program exit!!");wait(0.2);
+          //exit(1);
+        }
+  }//while
+}//main
+
+