16f676 solar charger

I coded for my own solar charging controller and it is now working well.
This version does not detect solar output. Knowing only the appearing voltage at battery terminal.



Coded by me, waagyi
'finished 676 solar charging controller
'mcu will sense the battery charging state and
'automatically turn off when the battery is fully charged.
'And check the charging state after full charge mode and connect
'the battery to solar automatically

'rc1 to rc4 for charging indicator
'ra0 for vtg sensing at battery terminal
'
'battery sensor decimal read out
'10.8 2.7 553
'11.6 2.9 594
'12.4 3.1 635
'13.2 3.3 675
'14 3.5 717

'used registers

'TRISA
'TRISC
'PORTA
'PORTC
'ADCON0
'ADcon1
'ANSEL
'ADRESL
'ADRESH
'RESS WORD SIZE VAR
TRISA=000001 'RA0 is analog input
TRISC=000000 'PORTC is OUTPUT
ANSEL=000001 'AN0 channel 0 is selected
RESS var word '16 bit variable to store both ADRESL AND ADRESH
FET var PORTA.2 'charging control transistor
EMP var PORTA.1


ADCON1=000000 'ADCS is Fosc/2
ADCON0=%10000001 'right justify, AN), ADON

loop:
ADCON0=%10000011
pause 50
if ADCON0.1=1 then loop


show: 'just testing it is working or not
RESS=ADRESL
ress.8=ADRESH.0
ress.9=ADRESH.1

if RESS<553 then empty
if ress>553 and REss<594 then show25
if ress>594 and REss<635 then show50
if ress>635 and REss<675 then show75
if ress>675 and ress<717 then show100
if ress>720 then full
show25:
fet=1
PORTC=0000
PORTC=0010
pause 100
PORTC=0000
pause 1000
goto loop

show50:
fet=1
PORTC=0000
PORTC=0110
pause 100
PORTC=0000
pause 1000
goto loop

show75:
fet=1
PORTC=0000
PORTC=%010110
pause 100
PORTC=0000
pause 1000
goto loop

show100:
fet=1
PORTC=0000
PORTC=%110110
pause 100
PORTC=0000
pause 1000
goto loop

empty: 'blink empety indicator
PORTC=0000
fet=1
emp=1
pause 100
emp=0
pause 1000
goto loop

full:
fet=0 'blink full charge indicator in slow rate
PORTC=0000
PORTC=%110110
pause 200
PORTC=0000
pause 1000
goto loop
end



'Feel free to chare, modify and test.



Image result for 16f676

Comments

Post a Comment

Popular posts from this blog

Inductance caculator

 #include<iostream.h> #include<math.h> #include<conio.h> using namespace std; unsigned short int bit; double c,l,fre,rad,Tmax,Tmin=0.5e-6; unsigned short int res; double ind(double); int main(int argc, char *argv[]) { cout<<"INDUCTANCE METER CACULATOR\n"; cout<<"**************************\n"; cout<<"8MHZ Fosc is used \nTcyc= 0.5e-6 sec\n "; cout<<"Select timer mode.\n"; cout<<"for 8 bit mode enter 8\nfor 16 bit mode enter 16\nbit:"; cin>>bit; res=pow(2,bit)-1; Tmax=res*Tmin; cout<<"\nResolution="<<res; std::cout<<std::scientific; cout<<"\nTmin="<<Tmin<<" s"; cout<<"\nTmax="<<Tmax<<" s"; cout<<"\nEnter ref cap(farad):"; cin>>c; cout<<"\n\nYou Entered"<<endl; //cout<<"L="<<l<<endl; cout<<"C="<...
Read more

Pointer to object array

 #include<iostream.h> using namespace std; class name{ private: char nm[20]; public: void get() {cout<<"Enter name:"; cin>>nm; } void show() {cout<<nm<<endl; } }; int main(int argc, char *argv[]) { name* p[100]; char c; int n=0; do{ p[n]->get(); cout<<"mire name:"; cin>>c; }while(c=='y'); do{ p[n]->show(); }while(n>=0); return 0; }
Read more